I am very happy with the work Cornerstone performed in replacing my heat pump. We replaced a 14 year old unit that was making a lot of noise. The new unit works great! They were on time and were very neat. The county inspector also told me they did a nice job. read more

Showed up in time! Great start! With little delay the tech asked me what the issue was. The tech started messing with my a/c looking for the issue. (Even made a joke at a previous companies attempt at fixing my a/c). The tech found mold in my system -which I had suspicion of but other companies had shrugged it off- and got to work cleaning the lines and getting rid of the mold. Installed a uv light to prevent mold growth too. I paid more than I wanted too, but I also wanted to have a working a/c in my house. Let's see how it works, if all is good in a few days I may sign up for the maintenance package. read more

A/C stopped working and called Conerstone after reading other reviews. I am pleased to say their service was outstanding. Donald was our technician and he was professional and explained everything to us. Very impressed and will recommend to friends and family. read more

I purchased a top of the line Lennox A/C System through Cornerstone in November, 2013. There were a few issues that arose immediately, including a service person who claimed that "You can't get humidity in Florida below 50% or you'll get nose bleeds", but ownership stepped up and made everything okay. I was pleased with the system and looking forward to having a good, local AC contractor lined up for future service on what I believed would be my last AC purchase ever. Fast forward to July 4, 2015, when the unit stopped working. A service call the next day ($89, high, but not out of line for a Sunday) identified the culprit as the condenser fan motor, which was covered under the warranty. The labor, however, was not. The service man stated he would order the motor first thing Monday, with plans to do the job the next day.. The repair required disconnecting 5 wires, removing 4 screws to lift off the top grille, removing 4 nuts to release the motor/fan assembly, then loosening a single bolt to remove the fan blade from the motor shaft. Reverse the process with the new motor and the job is done. Cornerstone's quote for this service? $439. When I asked how much time was required for the work I was told that Cornerstone does not use hourly rate pricing, and has flat rate charges for every job. The tech also tried to sell me a "club membership" that would get me a 10% discount on that fee. I objected to that price, which I considered exorbitant, to say the least. I then received a polite call from the service manager attempting to justify the price by delineating all his costs associated with acquiring a new part under warranty. When I responded that I understood, but simply could not afford such a high labor charge and asked him to call me when the motor arrived so that I could pick it up and do the work myself, he informed me that Cornerstone would not release the part to me. His best offer was to apply the $89 service call fee I had already paid against the $439 fee. I called a local competitor, Ierna A/C. The Ierna rep suggested I have a service call for a second opinion, and said the fee would automatically be applied against any repairs. Since I already had a diagnosis, I declined. The part was ordered and the job was slotted for between 8 and 10 on Thursday . However, I was pleasantly surprised to receive a phone call on Wednesday afternoon informing me that the part was in and that a tech could be on-site in 15 minutes. Long story short, Ierna did the job, quick and simple. Better still, the $140 quote was reduced even more with a $25 coupon my wife found in the paper that morning. Cornerstone AC will never work for me again. I urge anyone considering hiring them to seek out a second quote and save serious money. read more

Once again this company has proven themselves to be honest, trustworthy and professional. Making an appointment was easy and the operator was professional. The technician showed up on time, was very professional and was able to fix the problem in under an hour. He didn't try to sell us anything expensive or exaggerate the problem. Fortunately for us it was a small issue which was resolved quickly. This company may be a little expensive but it is worth it for the piece of mind knowing that they did things right. read more

Chris came out and looked at our old water conditioner tank almost 10 years old and was very honest and fair with his assessment and recommendations. He even tried to fixed a disconnected hose causing water to spill out and rust on our garage floor again showing us clearly why we will need a new unit. Very professional, knowledgeable and reasonable quote. Will definitely call him back out in near future! We live in Lutz and see a lot of Cornerstone trucks which is why we decided to call and glad to give a reputable local business our business! Thanks for great service Chris! Darla Johnson/Lutz FL read more

I cannot say enough wonderful things about cornerstone. My husband and I bought our first home recently and had 3 inspections prior to closing only to find out that the house was a disaster and no one actually inspected anything! Their electrician Chris came out to meet with us and inspect the house and unfortunately we had to rewire everything. Chris worked with us through the entire process. He and Wiz did all of our rewiring and then some. I cannot say enough about their work ethic, they did everything they could to make this a comfortable and easy process for us. They were also a lot of fun to have in the house, both of them are characters which made it less stressful for us. We've also had cornerstone do some plumbing for us as well. I'd refer them to anyone. read more

I called Cornerstone Air, Plumbing & Electrical to obtain a second opinion because of toilet smell/leak. My technician was Chris. My experience with Cornerstone was very professional and pleasant. I received a phone call from a service representative informing me that Chris would arrive to my residence within a hour. He was on time. I told him my problem and he listened attentively. He diagnosed my problem and provided a solution and future repair options. I choose to give 5 stars because of the professionalism of the staff from start to finish. In addition, I received a follow-up phone call from Mr. Chris. I will definitely call this company again for any home repair needs that I may have in the future. read more

Had great service today with Cornerstone. We purchased a unit last year and scheduled to have the unit serviced today. Matt F came out and did a great job. On time, polite and efficient. Let us know what he was doing and was nice enough to wear booties inside the house. Loved these guys last year with the install and their follow up work was just as impressive. read more

Very disappointed in this company! All was going well until the actual work began. after installing $400.00 of Freon I was advised that the coils have a leak. I was told how much a new ac unit would cost and how much a replacement coil would cost. The unit NEVER DID COOL! The tech left...I contacted a different provider and they found the leak in a copper tube; welded it, added 4 lbs. of Freon, and had my unit cooling in approximately 2 hours. All for $575.00!!! read more

One of our AC units stopped working. Cornerstone came right out and repaired it the same day. Their tech, Jay, couldn't have been more polite and respectful. He put boot covers on every time he entered my home and constantly gave me updates on what he was doing next. He was very professional. We even had Jay come back the next day to install Ultraviolet bulbs in both of our units to sanitize the air flowing through our systems. Before Jay came to our home both days, Cornerstone called to let me know they were on their way. I would highly recommend Cornerstone, they were a pleasure to do business with. read more

After some issues with the 3 ton unit originally installed, Cornerstone swapped it out for a 4 ton unit at no charge. The new unit has been operating without issue! Yay!! Thanks Cornerstone! read more

Start by saying they are very nice people! But... I couldn't get even a ballpark price for the work I needed. Even after I called several times. I had a kitchen sink, faucet, and garbage disposal to be installed. I had to pay them to come give me an estimate. If I would have got an idea of the price, it would have saved them time and me money. Their quote was very very high and I could not use them. But again, everyone was friendly and they did show up, so that means something! I wish it just didn't cost me $60 bucks just to meet them! read more

My wife and I decided to have out plumbing and HVAC replaced. It is great to have a company that can do both with a fair price. I am a home inspector and the quality of work was great. Trevor was fantastic from the quote and always available to me. The crew was outstanding as well. Jerry, Chipper, mike, and Jay were fantastic! Professional and finished both jobs in one day. I would happily recommend them. read more

I had a coupon with tune up for $39 value (1 lbs freon free included if freon was low). When he comes up, freon was low and there was chance of leak. So he made it service call as it was low in freon and AC was not working well according to him, and further the leak detection was chargeable to $198 + freon (chargeable for all)+ fixing it (unknown price). Now coupn says "if low on freon" in AC tune up and technician says "service call" if low in freon and then makes it a leak detection. So 3 star. As it seems complicated to me. Tune up means clean up drain lines, check for any leak and that all parts of AC are working fine. But only got freon checked in service call/ tune up but paid for all as coupn was waste. We just got freon added and AC is running well. I m not prepared to pay for leak detection and fixing as AC was checked 6 months back by AAA airwaves and 2 lbs freon was added too (Sept.) when they came to see AC stopped (coz of ice). So 99% chances last company cheated on us. I have had experience with 3 companies so far and just end paying much more everytime and worst part is AC is 2014 built. I need recommendation on right AC company. read more

Having your AC unit break down in 90 degree weather in Florida is probably the worst thing that can happen. We were serviced by another local company after our AC broke and found out our compressor went out on our 11 year old unit! They gave us a quote of either $5700 or $9700! This was 6:30 in the evening. We suffered through one night unforgiving heat and called several other companies in the morning to get several more bids. We were fortunate enough to get a hold of Miguel and we got a great quote and he said we could have it installed that afternoon! Thank God! The two young men were professional and did a great job and we had air that evening. We are happy campers :) read more

Cornerstone is one outstanding company. Every single experience I've had with the company has been a pleasant experience. Quick to respond to any request, the employees are both personable and professional. My positive experience with one of its employees, Reese, was just the latest example of this being true. This is the company that you need to use for all of your plumbing needs. No more needs to be said. read more

Asked for generator estimate. They gave price that wasn't itemized and was $7000 over the the retail cost of the generator. Look elsewhere first. read more

After our AC stopped working we researched companies and read reviews from Yelp. Cornerstone had received good reviews so we decided to give them a try. We were very pleased with the results!! We called this morning and received an arrival timeframe of between 10-2. We also got an hour call ahead to let us know they were on their way. Our technician, Richie, was very professional and had our problem fixed by 12:00 that afternoon. We will definitely be using Cornerstone again!! read more

I called Cornerstone based on the reviews on yelp. I had a ac balancing issue I needed help with. The first two people I spoke with all said the company could help fix the air balancing issue and went into details as to how they would address the issue. I then set up an appointment with the scheduler and then reconfirmed what the tech would do on the service visit. After being put on hold for a few minutes, I was then told they did not do air rebalancing for new customers. Wasted 20 minutes of my time. read more

Excellent service by Ronnie! During seasonal inspection of A/C, problem was found w/ unit. Ronnie explained & gave options/recommendations.Have had Cornerstone maintenance service over 10 yrs now. Always great, courteous service. Highly recommend them. read more

Cornerstone was great when we were in need of spending money with them for new A/C unit. Their techs were efficient and timely in the initial meeting and install. However, after their job failed the inspection they sent out the tech to fix the problem; he only made things worse. The breaker for the heater was the wrong size (35 amp), it was too large of an amperage size so when he came out to fix the problem with the correct size breaker (30 amp) he must have brought the wrong one. Rather than go and get the correct part he took a different breaker from our panel (30 amp) and switched it with the one he brought (35 amp). By doing this he made our pool sub panel breaker be the wrong size and created a huge potential problem for us. When we called Cornerstone for them to come out and fix their problem they said there was nothing they could do about it for the next 4 days. This problem could potential start a fire and they did not seem to care. Very disappointed in their lack of urgency to get this matter resolved. The fact that they sabotage our panel in order to pass their next inspection is the main reason for never wanting to use them again. Very disappointed. read more

It was a very disappointing experience when I called Cornerstone (like I have in the past), I explained that I needed my faucet valve in my bathroom replaced. I was given a window for the following day, which was wonderful. I then received a call from the dispatcher saying they have availability on another day. I explained that we already have a time tomorrow and she let me know that it can happen tomorrow but it won't be a scheduled time but they would call 30 mins in advanced. Which was fine, considering we needed to have our shower up and working. By 12 nothing so I called, again someone will be out between 3-4... ok thats fine. 5, still nothing so I called again, and they would be coming out right after. When the plumber got to our home, he said he could do the work but it would take about 3-4 hours and won't be scheduled until the following week! This was an estimate?? The 4 or 5 times I spoke with Cornerstone, it was never an estimate... never mentioned. I'm not sure whats wrong with the communication but by no means did they have to charge us $50 to tell us what we already knew. Unfortunately, in the past they were great. Not so much this time. We won't be using them again, and I am hoping to get my $50 back! read more

I was told a simple Float Switch (a $20 part) was going to cost $250 on top of another $250 for a thermostat replacement. Red flags started going up all over the place and I said "no thanks". Had them pack up their stuff and go. Bought a $25 thermostat at Home Depot to put in myself and as soon as the AC was working again I checked the float switch, it worked exactly as it was supposed to there was nothing wrong with it. I cannot stress enough how much you should avoid this company. read more

I do not recommend this companies plumbing services to anyone unless you want to have headache after headache. Back in November 2018 they completed a sewer line replacement after one of their workers put a shovel through a pipe when I called them because there was a problem with my tub not draining inside of the house. That proceeded to become a very expensive nightmare where the entire bag yard was dug up and left that way for months. They didn't pull the proper permits in a timely manner. When they did pull permits the job did not pass inspections.They did not work weekends. I had no use of my bathrooms for an extended time. The communication was horrible. In order to receive a discount for this job I joined their savings club where they come and check your plumbing once a year. Now they came to do the checkup and moved the pan under my water heater needlessly, bent it and as a result caused a small leak in the copper pipe that ran from it. After many calls and miscommunications they sent two people here to check the situation and did nothing to repair it. The last person I spoke with was Kenny, title unknown, who was very rude and told me I would be unable to communicate with the owner. When I mentioned reviewing the company he said reviews did not matter to him, that no one looked at reviews anyway. He said if the apprentice plumber they sent out to look at the pan issue would not have shined the light on the pipe I would have never known about the leak. He basically called me a liar. I had to contract another plumbing company to come and fix the problem Cornestone Pros caused and their master plumber with many years experience said that it was very likely that the movement of the pan and heater could have caused that small leak or the forceful turning of the valve above it also could have caused it, that was another thing Cornestone did as part of their "check". So Exceptional service, Never take your trust for granted, Pride in our work and all the nice things they say in their jingle went out the door once again. I don't know who doesn't read and take reviews into consideration when hiring a company, but I know I do and I hope this will help someone out there when making a decision about what plumber to hire or not to hire. read more

Service tech was great but their pricing was so much higher than other qualified AC shops around. It seemed as if they did t want my buisness and could care less. So many promises and yet so little delivered. read more

Thank you Cornerstone for coming out on a moments notice. Your technician got us up and running in no time.

Dont waste your time or money. They dont care about your schedule or appointment. On top of that you get an incomplete and bad job done. read more

Cornerstone Pros - After their job was done.... this is what i found when i got home. Ac Ducts cleaning, dryer duct cleaning, bathroom ducts cleaning.. JOKE!! - Heating & Air Conditioning/HVAC Near Me - Land O Lakes, Florida

See all

We have used Cornerstone a couple of times for different homes, but this most recent service call was exceptional. The tech was able to help us figure out why the unit kept freezing over at odd times even though the unit seem to be running correctly. Being the experts they are they helped us realized that a squirrel had gotten into the attic and tore apart the duct work. They were quick to fix problem and the house is finally cooling properly. This is also going to save on the electric bill now that the home isnt just cooling the attic. They are even handling the permit inspection from the city. We will continue to use Cornerstone for the prompt expertise and step by step communication. Great company to work with! read more

A/C Tech Rob W. was very knowledgeable and professional and answered all questions without hesitation. Their scheduling staff and employees answering the phone were very courteous. They behave as if they truly want your business and want to do a good job. Overall, excellent experience. read more

I have been relying on Cornerstone Pros for a year now and have never had a problem with them. They have installed a new A/C system last year and have addressed a plumbing and electrical issue recently. There is a pond in my back yard with a fountain that quit working. I thought it was an outside switch to the fountain but they determined there wasn't. The two service men were going to walk out into the water to try to determine the problem but I advised them not to. Despite telling me it would be another charge to come back later if they obtain a boat to check the fountain I told them to get the boat and come back rather than walk out into a muddy silt filled pond. Most recently I had an estimate on a stand by generator. Michael took time to explain everything and answered any questions I had. I recommend them for HVAC, electrical and plumbing problems. read more

These guys came out to the house, did their inspection, an recommended a way ahead when one of my 3 units failed. The install was professional and painless on my end. They were professional and they cleaned up behind them. They took care in removing molding around the attic access and re-installed it when complete. The new unit working great. Only ding was that they did not schedule me for the county inspection once complete. They are my new AC service company for the future. Thanks. read more

Only 1 star because I had to mark it. This really should have a -5 stars. I called Friday night looking for a plumber because my tub would not drain. I called and asked if they offered after hours service, was told yes not a problem. About 45 mins later the plumber arrives pissed off because he has to come over. He walked in smelling of cigarettes and was just irritated to be there. I told him what had happened and of course he started making rude remarks about using drano. He said the clog was due from 40 years of drano. Which was completely wrong. He was slamming his equipment around and cussing. He continously grunted and sighed because he had to come out. First off he should have stayed home. It was not like I wanted to pay the after prices for no reason....much less pay for some jerk to come and be rude. He said he was unable to unclog the piping and needed to take out my tub in order to figure out the issue. He was so pissed off that he couldn't get is equipment to back in the case. So not only was he insulting he didn't fix the clog. I am very disappointed in his professionalism and will NOT ever use this company again. I had to call another plumber who successfully fixed the issue without distroying my bathroom. A little advice, Mike you may want to look into another profession! read more

I must say I was very impressed with this company. After a long day out shopping and showing the Tampa area to out of town friends, we arrived home around 6:45 pm to a rather warm house. I turned down the A/C but the air was warm. We checked out side and the fan was not working. We typically call another company, but the last time the charge was a bit high and we had to wait 2 days for a part to arrive. This time I checked in Yelp. I went with cornerstone because of the previous review. Took a chance and went for it, we called around 7 pm and was told to expect service between 8 and 11 pm. Approximately an half hour later we received a call saying their were on their way. The technician arrived ( his name was Chris) and got to work, a few minutes later the a/c was up and running. He explained we needed a part to ensure the blow up would not happen again, but we did not feel pressured to purchase it from him. He had a laminated price list, which I thought was really cool and I certainly did not think I was taking advantage of even for being a Saturday evening. I will absolutely call them again. The charge was very reasonable, I was expecting a higher cost then what I was changed for being Saturday evening and raining. thanks Chris, you were very nice, friendly and fast. With a house full of family guests in for the weekend, a/c was important. Good job... read more

I have done business with Cornerstone a few times in the past once for an AC repair, which they had to come back because it was wired improperly and for a new unit install. I was never too impressed, however the were able to come out fast so I gave them my business. This most recent time I called them out to check the AC on a rental unit. They scheduled with the tenant. Checked the unit and left. The technician called me from his truck to tell me he was writing up an estimate for repair and would email it to me. What good is an emailed estimate. I called to get the Air working. I was upset because they made no effort to actually fix the issue. I knew at that moment I would have to call someone else. I waited 3 days and still no email. I called the office, they said ooops, we have the wrong email address. The written quote was over $1200.00 A tech from another company came out, fixed the issue. Charged me $125 and it has been ice cold ever since. When I called I asked them to waive the service call fee. They refused. Not that they would care that someone is without AIR from the time it takes them to get back to me. They did have a working phone number to text or call, and in the mean time people are suffering in the Florida summer heat without air. I will never call them for anything ever again. In addition to paying top dollar that comes from a big company, they have lost my trust forever. read more

Called to get a quote said they could not. Told them I had another company come out but was discouraged when their machine broke and they were indifferent when I said ok I guess I will just go with your competitor. Very snarky. Angie was her name. read more

I have been a customer of Cornerstone for quite a few years now and have had pros here to install a new a/c unit, do electrical work (thanks, Pete T.), as well as my most recent job, installing a new water heater (thanks to Martin P and Josh M). I have been more than satisfied with their work, their work ethic, the fact that I am kept up to date and time as to their arrival, and I appreciate the emails including their pictures so you know just who is coming to do the work. They are efficient, informative, and willing to go the extra mile. You never have to worry that you have to wait a week or more to get the work done. They leave the site clean and tidy and always with a friendly "have a good day, ma'am." I am never concerned that the work they have done is anything but top notch and I am so happy to have found a company such as Cornerstone. read more

We used Cornerstone in October 2014, we thought the service was okaty, but the price seemed high. They told us we had a leak in one unit and would need to think of purchasing a new unit. I referred them to my parents house, since they were also having AC issues. They immediately told them she needed a new unit, and charged them over 400 dollars for being there 30 minutes. Their unit is working fine and had another AC company come out and tell them they do NOT need a new unit at all. We recently needed our AC unit serviced ad called a local company to come out. We realized that Cornerstone charged us 5X more for freon than a local AC company. THEY ARE CROOKS! read more

Cornerstone installed a Trane AC in my condo and left wires dangling in the AC closet and insulation half hanging. Had this been a low bid AC install, I suppose I could say I got what I paid for, however I paid $,5000 on this AC. I expected a better job. On the outside unit they poorly wrapped the insulation around the pipes that I had to go out and redo it myself. Needless to say when my other condo AC went out, I called "WE CARE AIR CARE", not Cornerstone. Tim and his crew actually pulled a PERMIT and had his work inspected by the county after his AC installation; which is when I realized something was majorly wrong with Cornerstone. Cornerstone never pulled a permit, and if they had, this would never had passed! They promised to come back and fix it and they never have. Today I went to them to ask them to please come back and fix their work yet again, they want me to pay a SERVICE Charge plus a FEE to fix their poor work. I think I will write some good PR for them. If anyone wants to see pictures of their wonderful installation, please let me know, will be happy to post the pictures! I would never use this company again. read more

I have nothing but exceptional things to say about Cornerstone Pros. Their customer service was second to none. They were able to diagnose and replace my faulty hot water heater within 24 hours and it was over the weekend! Kiel the technician was professional and polite, and his work was extremely clean. Kiel even gave me a follow up call later in the day after the install to ensure everything was working properly. This type of service is rare in this day and age. That goes for Kiel and everyone at Cornerstone Pros that I spoke with. Extremely satisfied customer!! read more