I got both a heater and air-conditioner from him. Did consider two other bids before I chose David Kester (he was actually less expensive). He sent their best installer who did a very professional job. They were supposed to deliver a winter cover for my air-conditioner and gave me the wrong size. David was very apologetic, ordered the right one and dropped it at our house as soon as it arrived. All in all, did everything he promised. read more

We called Kester after reading all the glowing reviews here on Yelp. He came to our house to estimate a new heating/cooling system and spent almost an hour with us discussing our needs and assessing our current system. He left, promising an estimate within three days. Frankly, at that point, the business was his to lose - Dave is everything you've read here: knowlegeable, courteous, professional - overall extremely impressive. We had three different companies visit us that day, and my wife and I agreed that we'd go with Kester even given a reasonable cost premium - that was how comfortable we felt with him at that point. Three days came and went. We had the estimates from the other two companies promptly. But absolutely nothing from Kester. My wife called to make sure he had the correct email address (and received no response to her voicemail). I called - twice over a period of several weeks - and again our messages failed to prompt a return call. Not even the courtesy of letting us know - for whatever reason - that he wouldn't or couldn't take on the project. So, our project has been stalled for almost a month as we waited for what was our preferred vendor to deliver the promised estimate - and we still have absolutely no idea why we didn't receive it. That said, it's only fair to acknowledge that this post-visit behavior was completely inconsistent with the Kester we met in person, but - given the lack of follow-up and communication - we have no option but to rate our overall experience as frustrating and disappointing. read more

I am correcting a review that was made by me earlier. Kester is a dishonest person. Kester installed a Trane HVAC system in my house. I inspected his work this week. I inspected it because I found areas of the house were not being heated. The installation (including the ducts are in my attic. I was amazed. Several rooms that Kester claimed were heated had registers that were not even hooked up. Kester used non-approved tape to wrap insulation. Duct valves were carelessly installed with flow control valve handles placed in random orientations (requiring dis-assembly of the ducts to determine valve position). The job was nothing more than a hack and dishonest attempt to get paid $9000. I understand Kester is retired now. Well, here is another example of dishonesty and mediocrity that hopefully will be replaced by some person that respects the profession they chose. To the extent that my reviews are used by anyone, I apologize for my previous glowing review. I learned that no matter how technical, as a consumer you must get dirty and really inspect the work done, no matter how nice and pleasant the person you hire seems to be. read more

One day, many moons (months) ago, the heater stopped blowing any air through the vents. Based on fear and principle, my boyfriend couldn't get himself to find a technician to come out and look at it. Yes, I said look, not even fathom the idea of paying to fix. He didn't know where to look, who to trust, and just the idea that this may be a major job prevented any immediate action. We've even had guests looking at it since our place was so unbearably frigid. Anyway, so we suffered through the winter with a broken heater. I have definitely grown tough skin freezing my petunias off the past cold cold months. With the weather on it's way to warmer pastures and, really, just to finally prove a point, I decided yesterday to get the heater, quite possibly a problem that will affect our air condintioner as well, fixed once and for all, or at the least looked at to get a proper diagnosis. My sister has been boasting about Yelp since forever and a day which is where I decided to start my search. So, not only is this my first review, it's my first yelp experience! I found Kester Heating, read the the great reviews and was sold. I contacted the company and received a call back within the next hour. I spoke with David Kester himself. I described the problem. He proposed a few diagnoses from minor to major. I asked how much it would be for him to check it out. He said for the visit, a diagnostic fee of $69. And if there is any work that is determined necessary, then we'll move on to the next step from there. So, we set an appointment the next day for a technician to come out and look. To my surprise, it was David again who showed up at our door. He had actually called to confirm the appointment in the morning and we ended up rescheduling for earlier since he had the time slot open. Upon arrival, I was greeted in a friendly and professional manner. Within 10 minutes the problem was identified, fixed and our heater purring again. David explained to me what the problem was and showed me where to look if the it were to happen again. The stack switch was off. This tiny switch in between two wires that blows air out from the heater to outside through the roof, kind of like the exhaust pipe on a car as David explained. I was charged only the Diagnostic/Visit Fee of $69. He even kicked in a new filter. I had a great experience. I am now a fan of Yelp and would gladly recommend Kester services to anyone. Thank you both for bringing heat back into our home and, yes, the satisfaction and victory of a point proven. read more

Our furnace started blowing cold air last week. Never having needed furnace repairs before, I was at a loss for someone to call. Well, Yelp to the rescue. Dave had great reviews, so I called him. I told him that the pilot light wasn't lighting automatically like it used to do. We made an appointment for him to come out and check things out. Turns out my memory was wrong, because our furnace wasn't the kind with an automatic pilot light. It has an "always on" pilot light that, for some unknown reason, had gone out. Dave lit the pilot light, diid a quick inspection to make sure the furnace looked safe (turns out it is the original furnace in our 1973 home) and marked (with a red X) where to light the pilot should this happen again. We ended up paying for an hour of Dave's time to light out pilot light. But it was money well spent because we found someone who we trust. And when we do need our furnace repaired or replaced in the future, we know who we'll call. Plus we now have someone we'll recommend to others who may need furnace of air conditioning services. read more

I called Kester for an estimate on replacing the upstairs furnace. I received a call back within 15 minutes from the owner himself, David Kester. He came out and gave me an estimate the next business day. His price was decent and flexible. I also added duct cleaning for the whole house. The crew came out few weeks later. That is due to my scheduling difficulty. There were 3 workers. Two workers worked on the furnace and one worker worked on the vents. It took them from 9am-1pm. They stayed and explained how to clean the air filter and whatnots on the furnace. I am satisfied with the service and the product. read more

My goal was to install one or two mini-split (ductless) heap pump systems in my house. I contacted several contractors and got several estimates that were a bit higher than what I'd expected (one of them was absolutely ridiculous--almost double what the others were quoting). I called Kester Heating & Air Conditioning and scheduled an estimate with David Kester (you do need to call the mobile number, by the way--I usually got his voicemail, but he usually called back within 24 hours). We had a hiccup the first time--apparently David had arrived early and left because he thought I'd already left for work. I was a little irritated, but we worked out the misunderstanding and he returned to do the estimate a few days later. David came out and handed me an estimate immediately at the end of our walkthrough, and it was more reasonable than the other quotes I'd received. But I'm picky and I wanted to order specific equipment online. David was willing to work with me and he offered an appropriate price for the labor and miscellaneous installation parts, along with a proviso that he would not cover warranty service since I hadn't purchased the equipment from him. I ordered the equipment and I called David to schedule the installation after it arrived. On installation day, Jaime and two assistants (José and Carlos) showed up and began the work. Jaime was very courteous and personable, but his assistants José and Carlos were all business and barely acknowledged my presence. It took about 7 hours to install two mini-split units. They did a fairly good job of cleaning up outside at the end of the day (I found a few metal shards here and there though). Inside was a slightly different story. At the beginning of the job, I asked Jaime if I should put down cardboard or something to protect my new (light-colored) carpet. He said no, they would put down dropcloths (which they did). The only problem is (1) the dropcloths were a little dirty and dusty, and (2) they walked around on the carpet with their shoes on before putting the dropcloths down and after taking them up again. So the carpet got stained, and I found several marks and handprints on the walls as well. I called David Kester to let him know that the job had been done and everything looked good except for the carpet and wall stains. David called back soon after and he apologized for the problems. He gave me a few choices: cash reimbursement, a professional cleaner, or he could come and clean the carpet himself. The last time I had a "professional" cleaner come by (ChemDry), I didn't have a very good experience, so I told him I would just clean the carpet and touch up the walls on my own. I requested a small cash reimbursement, and David agreed to drop it off in the morning. The next morning I received a call from David, who said he was sending someone to drop off some money for me as well a bottle of carpet cleaner (to borrow) that he personally found to be very effective. He ended up giving me more cash reimbursement than I'd asked for, and the carpet cleaner did work somewhat (not perfect, but it helped, and it wasn't a petroleum-based cleaner that leaves residue). The Fujitsu mini-split units are running well and I think I got a fair value in the end. Kester did a good job overall. Not everything was perfect, but David did the right thing--he was quick to apologize to his customer, and he went above and beyond to compensate for the trouble. It certainly would have been nice to have avoided the stains in the first place, but nobody's perfect and many businesses could learn a thing or two from David about customer care. read more

Kester Heeating and AC is great! Beyond exceptional service. The team was thorough and efficient and Dave gave us great advice on what we needed for our home. We love our new AC, furnace and filter. It's the bomb!!!! Dave is truly a genuine guy and cares about his work and quality of service. Thanks Dave! read more

Impossible to get a hold of. Perhaps they are on vacation; I have called many times for the past few weeks and have been unable to speak to a human. I also left messages and not received a response. If the company is on vacation, their voicemail message should indicate at least that much. I am disappointed that a company so highly rated on yelp is so poorly responsive. read more

What can you say when a company like Kester won't even return your calls? I needed a diagnostic on an AC problem, I think the motor died. After several attempts to reach Kester, based on the reviews I had read here on Yelp, I gave up after three days and went with Atlas Heating & Air. At least they had someone to take my call and actually book an appointment. I'll definitely be writing up a review on the quality of their work as well, once they come out. read more

Of course, the furnace fails in December! How does it know to wait until the coldest time of year? I am happy to report I received a courteous, fast and competent response from Kester Heating. (I called a big, brand-name company first but was left on hold.) Although slightly more expensive than another service I spoke with, I really appreciated how the crew patiently explained everything that was involved in rehabilitating my tired furnace. Dave, the owner, followed-up a few days later to make sure the heat was still running fine. I would definitely call Kester again. Update to the above review: 2 years later, in May 2012, I needed a minor repair to my heating ducts in different home. I did not shop around, I called only Kester. Again, I was very satisfied with the prompt service. In my experience, it has often difficult to get fast service at reasonable costs for a small project. And, while Kester would probably prefer to not to do a bunch of small projects--their service on this one guarantees they will get my business for the next big heating project at another of my properties. read more

Other reviews talked about how good Dave and his company is, so I had him bid along with 2 others. Dave's price was very fair, and the great things people said about him proved to be true. During the initial walk through, Dave was very thorough in explaining the tax credit and my options for gaining the credit while getting the right furnace, ducts, and A/C unit for my home. Dave's 3 installers are all great guys and VERY hard workers. While they were installing at my house, my tenant from my rental house called to say his furnace had stopped working. I called Dave late in the afternoon, and within a couple of hours, the tenant had heat again. I strongly recommend this company. Bob Rosenberg, San Jose, CA read more

We just had our furnace reparied by Kester Heating. I give them my highest recommendation. Dave Kester came out to do the repairs himself; he is courteous and professional. He had to replace a control board in the furnace; we had a similar board replaced in our larger unit 5 years ago, and the cost then (using a different company) was almost double of what Dave charged me today. Keep in mind that Dave runs a small shop - so he may not be able to immediately get to you - I had to wait a few days for him to come out - however - it's worth the wait. I can tell you that other shops would have rescheduled a week later to return with the control board, Dave said he would return within a few hours, which he did. read more

5 stars, impressive personal service! We recently purchased a 1950s house that is a complete fixer upper. Our first months heating bill was through the roof, so we decided to shut it down and remove the old system so we can do upgrades in the house and later replace it with an efficient system. The house has a 30+ year old furnace and condenser. We searched yelp for a few recommend HVAC companies and called Kester Heating as one of our options. Dave, the owner, personally came over and reviewed the project with us and went through our options. He answered all of our questions and took quite a bit of time with us and provided a detailed quote on the spot for removing our system and later installing a new one. We received quotes from two other companies and was not impressed with their response times and communication, we went with Kester not only because of this but because he was extremely competitive in pricing. The next week the removal was scheduled, two very courteous guys did a great job and was very conscientious of the surroundings (we have a puppy and have had issues with contractors leaving doors open). The only issue during the process is when the gas was turned back on, the hot water heater couldn't be lit. After 45 minutes of trying to re-light (a very old) hot water heater, I told the guys to go ahead and leave and I'd call PG&E to do it since I was sure it was the water heater's age. Dave called me an hour later and told me he would stop over and give it a try. He came over that evening and replaced an old part that had gone bunk. Kester went above and beyond what was expected here! We still need to schedule the install of the new system, which will be after we finish some electrical upgrades, but are very confident in their abilities and couldn't recommend them more. Thanks Dave, for making this part of our project very easy and seamless! read more

The owner, Dave Kester, came out to our home to give us an estimate for installation of an AC unit. He was prompt, professional, and courteous and took the time to explain the proposed work in laymen's terms. He prepared the bid in a few minutes and his rates were comparable/cheaper than others. It was during the height of the last heat wave and I was HUGELY pregnant, so I was in a hurry to get the work done! We scheduled the work for the following week. A crew of three showed up promptly to perform the work. The head guy, Jaime, was courteous and he and his crew took proper precautions to make sure our house was kept in tact during the work. The guys got it all done in a few hours and they were a pleasure to have in our home. Thank goodness, our A/C is now up and running and I couldn't have been more pleased with Kester Heating & A/C's work. read more

We needed to replace one (possibly two) furnaces in our home last fall, so I searched Yelp and contacted 3 companies. One never called me back to schedule an appointment after we spoke, and the other showed up one day late for our scheduled appointment. Dave Kester answered right away, and was pleasant and professional. We set an appointment and he showed up on time. He did a careful assessment of the two furnaces and said that only one needed replacement (high marks for honesty and integrity). He even gave us a quote to simply repair it, but pointed out the benefits of not throwing good money after bad. He wrote up an estimate on the spot, and even replaced the filters on the good furnace for free. He helped us weigh the pros and cons of the different efficiencies of the new unit. Between myself and my family members we ended up getting about 5 estimates. Kester was not the highest and not the lowest, but we chose them because we felt good about Dave and the work that they proposed to do. I give them only 4 stars because on the day of the installation Kester's team did not install the unit that was promised. Dave told us he would install a furnace with a special filter cabinet so that it would be easy to change the filters. When they were done with the installation and I asked where the cabinet was, I was told by their worker that there were out of those units and they placed a filter over the air intake vent instead. I REALLY wish he had told me that before they installed so that I could have asked them to wait until the other units were in stock. Dave was not on site for the installation and I was having problems communicating with his workers, so I decided in the end just to let it go. Also, when they were fiddling around with the upstairs furnace (the one that did not need replacing) one of the guys cut a wire that they weren't supposed to. This resulted in a really strong burning plastic smell to spread throughout the house. When I asked what that was, I was told that it was the dust burning off. It was not until I pushed a little harder that I found out what had actually happened. They fixed it, but I would have preferred they were upfront. Overall, I would work with Kester again based on the quality of the work performed. I would just be sure to follow up a little better and check in throughout the project so there are no surprises at the end. read more

Thank you, Kester Heating and Cooling, for a job well done on installing our air conditioner. We contacted Kester H&C and were able to schedule an appointment to receive an estimate very easily. I believe it was Dave who came out to our home to give us our estimate. He walked us through the proposed work twice and was happy to do it. He gave us an estimate in a professional format within about 5 minutes after he finished surveying our home. We found his quote to be the most competitive and moved forward with the installation. The two installers who worked on our home were very professional and friendly. If I recall correctly, they even stayed late on the last day at no extra charge to get the job finished ahead of schedule which was much appreciated. The result- a successful installation and a great new a/c to fight next Summer's heat. HIGHLY recommend. read more

I called Kester to see about having some minor new duct work and a good furnace cleaning (the prior owners ran the furnace without a filter for a few years). To be honest, I called a couple of higher-rated (on yelp) people, and none of them returned my calls. Dave Kester called me back, showed up exactly when he said he would, gave me a reasonable quote, and was friendly and clear throughout. The two guys who showed up to do the work were friendly, professional, and efficient, doing a great job, cleaning up, and finishing within about 10 minutes of their estimate. I get the sense they keep a small operation intentionally, and small jobs like mine might not fit their usual project scale, but I feel lucky to have found them. read more

We called Kester Heating & Air to come out and give us a quote to replace our furnace and install a central air conditioning system in our condo. We asked for a Saturday appointment, which he balked at but ultimately agreed to (said we were "ruining" his Saturday). Saturday comes, but Kester doesn't. No show, no call, no nothing. Totally unprofessional. AAA Furnace and Air Conditioning was wonderful, showed up on time and installed our system last week. I guess our measly job wasn't important enough to Kester. read more

Excellent experience all around. I called one afternoon and received a prompt response, they were able to come out the next day (thank goodness...brrrr). Dave the owner gave me a two hour window between 10-12 that he would show up and was there right at 10:01. He diagnosed the problem quickly, explained it to me in layman's terms and went right out to buy the part I needed. He had my heater fixed in under two hours for under $200 - yay! Friendly, efficient, fair prices. read more

Air con fan gave a loud scrrrreeeeech and died on a hot summer day. Called Dave and he promptly returned my call. Got the model number of the Carrier A/C and he walked me through a few simple steps of diags and determined that the motor failed (bearings) and needs replacement. He kept me updated on parts availability and got me the replacement part and personally came to install it the next day. No if you want a sleazy guy who comes with a writing pad and give you an outrageous quote telling you that you need to buy a new AC + furnace (dont tell me you never had that experience) Dave's not the guy. If you want someone who's courteous competent and professional and does a A++++ clean job then give him a call. The only problem is that Dave's voicemail prompts seem to act strange sometimes so be patient. Hopefulll he'll get his website up sometime soon so we can email him w questions and requests. Anyway ALL THUMBS UP! read more

While I did not do business with Kester, I did call to seek help to get a dead animal out of my ducts. Kester was booked, but did give me a referral to another company. read more

0 Stars, i called them, left a message, said they would call back within the hour, 4 days later, still waiting. Obviously they are too busy or not interested in a several thousand dollar project. Would worry that the same problem would occur if i try and get them to fix what they installed. read more

We called for a general estimate for our condo regarding air vent cleaning. Dave called back within fifteen minutes to say that air vent cleaning is not a provided service, but rather that they service heating and air systems. He was cordial and professional and we really appreciated his prompt reply. Hopefully we won't have any system problems in the future, but plan on calling Kester if we do. read more

We called Kester to service our AC units. Dave, the owner, came out, he was on time, price was reasonable and he was very thorough. He recommended a couple of things but did not try to up sell. Kester Heating and AC is a small family owned business and if they have a super busy week you might wait a bit to hear back from them, but they are worth the wait. Great service and super nice people. read more

From our first meeting with Dave, to our installation with Jaime and his crew, the whole process of getting a new furnace/ac was awesome. Dave came out and reviewed our options for the furnace and ac and answered all of our questions. Jaime and his crew were prompt and did a fantastic job. We were told that the job would take one day and by 3pm, we were testing our new furnace and ac. The crew cleaned up and you would never know that someone spent a day working in and out of the house, except for the new equipment! We are very happy with our new furnace and can't wait to use the AC next summer. Thank you! read more

I called them around 9am. The owner, Dave Kester, came out at 10am to investigate. He came back at 6pm with the correct part, and by 6:20pm our AC problem was fixed. He was very nice, knowledgable, and really cared about providing a good customer experience. He's my new AC guy and I would recommend Kester to everyone! read more

We needed to upgrade our 40 yr old furnace and decided it was time to install central AC. We shopped around and received five different bids, company profiles were varied. We took our time reviewing the contracts/hardware/warranties and of course our experiences during the consults. While Kester didn't have the lowest or the highest $ bid, we felt most comfortable with Dave and decided to go with him. Obviously the majority of the reviews here give Kester glowing feedback and praise for his knowledge, workmanship, and overall human touch to satisfying his customers. Our experience was no different, we couldn't be happier with the process and the end product, especially the extra little touches which were either included in the package or came w/ a minimal mark-up. The outdoor temp sensor integrated into the LCD touch thermostat is a pretty cool feature. The Trane hardware he recommended for our home was superior to the other models we were quoted, and they had it for less. While it wasn't a completely seamless process (we did have a minor hiccup which was caused by our indecisiveness) Kester and his crew were very patient and understanding of our decision to move the AC unit after they had completed more than half of the install process. Lastly, I learned from Dave that Trane made a premium AC cover (I'm a brand snob so instead of opting for a generic AC unit cover at Home Depot) I asked him to order me one and send me a bill. Well, a few days after we had paid him in full for the job, a brand new premium Trane AC cover was on my doorstep accompanied with an invoice that was "Taken Care Of." Thank you and your crew Dave! We're loving the furnace (and the money we've saved so far on our PG&E bills) and look forward to running that glorious AC in a few weeks! Mike read more

I had Kester Heating and Air Conditioning replace an old furnace and install a new air conditioner in my house. I spoke to David over phone and I was satisfied with his knowledge. He came over to give an estimate. His quote was reasonable and willingness to go extra mile, if needed, at no extra cost got him the job. He sent two people to do the job and it all finished on one Friday. I was very impressed with the job. After couple of days I had to call David because furnace was making too much noise and air flow was very strong. He came over the next day with two people and adjusted the flow in the furnace. He also opened an additional hole (or vent?) at the bottom of the furnace and redirected some of the flow into the second half of my house. He did not charge me anything for this work. Everything has been working perfectly since then and I could not be happier. I get lot of work done in my house but I never bothered to write reviews. I now feel it is only fair to spread the word of goodness if someone goes out of his way to make their customers happy. I hope David will be able to keep up with this and other people who hire him will have the same good experience as I had. God bless. read more

I have been extremely happy with Kester, and have recommended them highly to all my friends. My furnace stopped working the day before Thanksgiving (yes it was cold), so I left a message at 7 in the morning. Dave returned my call right away, and suggested some troubleshooting steps first. When that didn't work, he said he could come in between jobs that same day. He did, and it turned out to be a faulty logic board. He got a replacement, installed it, and got it all working - for a very reasonable price. Amazing. Super nice guy, very reasonable, and great service. Would recommend him highly! read more

I needed to have my furnace inspected for cracks in the heat exchanger since that can cause carbon monoxide to seep. However after leaving 3 separate messages over a period of several days I have not received a call back from them. Apparently this is too small a job. Well there are other firms I can go to. read more

Received a prompt return call from Kester Heating. He was out the following workday, on time, as scheduled. He explained all parts of the furnace and where the problem was. He put in a new transformer and explained its function. Appt. took less than 1 hour. Cost was $160 inclusive of labor and part ($40.) Mr. Kester is the owner of the company and a pleasure to deal with. I would call him again if I had a furnace or A/C problem. I would recommend him to friends. read more

I love nice people! Dave is one of those people. I called at 9am on a Monday morning after discovering the problem over the weekend. Callback was relatively prompt, around 11:30. Couldn't get on his schedule 'til Thursday morning (boo), but I can't blame him for being busy and he was very nice to talk to on the phone. I've had it with flaky repair people who don't get the job right and overcharge, so I was willing to wait to see if he would be any better. He arrived on the dot, if not 1 or 2 minutes early. He took his shoes off when he stepped inside the house - which shows a lot of courtesy and respect. Almost no repair/contractors do this!! He was clean and professional in attire and behavior. His manner was very soothing and friendly - I was completely at ease. When I gave him the scenario about my heater, he explained a couple of things that might need to be replaced - - BUT, maybe it could be solved with a little cleaning and scraping. Hope, hope, hope! In the end, that was all it needed. He couldn't hardly believe it was that easy, and checked his work about 10 times to be sure it was truly fixed. He only charged me for a basic service call. I'm sure many contractors would have just gone ahead and quoted for the full repair & replacement, so I appreciated his honesty. I requested a quote from him for new furnace and a/c unit, which he was obviously happy to provide, and did so quickly and courteously. I found out through the process that installing new units is his core business, and he only took service calls here and there when he had openings on his schedule, so I guess I was lucky he had time for my little job. In summary, really nice guy. Honest and knowledgeable. Courteous and professional. You can't go wrong. read more

Called Kester Heating & Air Conditioning on a recommendation. Call was returned the same day; appointment for estimate set up for 2 days later and new heater was installed the next day. Price was great, job was done in less time than expected and we felt price was very good. Employees doing installation were very conscientious and put tarps and plastic everywhere they walked. read more

We are very impressed with Kester Heating and Cooling. As part of buying a new air conditioner we reached out to multiple companies. Kester not only provided us the lowest rate but also the best experience. Dave himself came by to provide an estimte. He was accurate in his responses and was not pushy. His team came out at the scheduled time and install the AC as agreed. Dave is truly concerned about his customer's happiness! Very refreshing. read more

Dave Kester was highly recommended to us. He was quick in returning our call for an estimate, and came out to our home promptly. He spent about 45 minutes carefully inspecting our home, and promised an estimate within a day or two. He also said that the work can be started the following week. After one week, we are very disappointed that we never received an estimate. We've tried calling him - leaving 2 voice messages, he will not even return our calls. If he can't do the work, he should just say so. It's not a big deal if he decides not to do the work - we'll just move on and find someone else. What really bugs me is that he's not responsible enough to follow-up a simple phone call. read more

I highly recommend Kester Heating and Cooling, for the following reasons: 1. Prompt return callback to my original phone inquiry; 2. Very good explanation of what might be wrong, given my description of my furnace breakdown; 3. Willingness and ability to attend to my problem expeditiously; 4. The most reasonable pricing, by far, of three vendors I called; no attempts to sell me stuff I did not need; the others tried to take advantage of what they perceived was customer's ignorance; 5. Prompt arrival at the agreed-upon time to fix the problem; 6. Effective correction of the problem; 7. Very pleasant and polite -- excellent "bedside manner." If I have another Heating/Ventilation/AC problem, I will call David Kester again. read more

Kester Heating and Cooling added a unit to our existing forced air unit in Santa Clara 20 years ago. We called on Dave to come and service our unit for the years that we lived in our house. When we moved to Campbell/San Jose our existing unit was on the fritz...Dave came out, told me he could replace a part and get it to work for maybe another year and after that it would probably need to be replaced. Well, 9 months later my unit has died on me. Sorry to say, I called Dave to come and replace our unit and he is no longer in business! Best of luck to Dave and his family. We will miss his honest ,hard work. Audrey Arancio read more

They are a small shop, seems to be having more requests than they could handle, the guy hung up on me when I was trying to get a referral number. read more

I called an air duct cleaning service and asked if they can give me some references, they told me that I can find their reference from "Yelp" (I didn't know there's Yelp review on the website) To my surprise that I found Kester Heating & Air conditioning with lots of 5 stars reviews. I had a terrible experience with their service last year during summer when I changed my heater and cooler. Dave, the owner, was professionally present his services and his service overall was good. But the problem is he didn't install the units. His workers who installed the units did a terrible job. 1) First they forgot to turn on the hamper - I mentioned to the guy who installed that the upstairs not seems right because I hardly felt any air came from the vent. He checked and said it was OK. I normally don't turn on cooler so I thought maybe that's the way is. However during the winter when I turn on the heater I definitely could tell there's something wrong. So I phone Dave and he sent the guy back and fixed it (apparently he forgot to adj hamper even though I have mentioned before that the upstairs air flow not seems right) 2) Last year during Nov. I was remodeling downstairs and when contractor changed the mechanic door he mentioned to me that he smelled gas. So I called PG&E and they found out the connection between gas pipe and heater was not tighten. They fixed it. 3) The contractor also mentioned to me that my plenum (a box direct under the cooler/heater in crawl area) was in really bad condition. It touched the dirt and rust badly and should be changed during changed heater (I crawled to see it and agree with him). Now with heater set on top of it will be really hard to change (enormous $). I have mentioned to Dave before they started the job that please checked my air ducts because this is an old house and he did mark on his detail list. But apparently his workers either didn't do it or doesn't care. So the alternative right now was to seal the plenum and Kester suppose need to do it. I called again and the guy installed the unit came back (not Dave) and he check the crawl area and said that he seal inside the plenum from the top when he installed the heater. But when I saw this guy again I was totally loose the confidence on him. So I called another company and they screwed and opened the connection between plenum and air duct and took a picture (I also crawl to see when he opened the platen). No, there's no seal inside the plenum. I spent $900 to seal the inside plenum, seal the heater with seal paint (Kester only put duct tape around the heater and when heater was on the tape all loosing and air blew out from the heater) inspect all ducts and change 2 air ducts. Looking back I regret that I forgot to ask city inspector to check their work read more