When we moved into our house 24 years ago, Davis & Davis was servicing the existing AC and heating…read moreunits. We stayed with them ever since and we're so glad we did. Every time we had an issue with our HVAC (which isn't often), technicians arrived promptly, diagnosed the problem and implemented lasting solutions. When the existing AC and furnace reached the end of their natural lives, they replaced them for us and the A/C unit performed well for 19 years and the furnace is still going strong. Can't recommend them highly enough!!!!

Very disappointed long time customer. Less than a week after I renewed service contract and had…read moremaintenance my HVAC, I had an issue. I called on a Sunday and talked to answering service three times and they assured someone would call. My problem simple and complex but didn't require a visit, I just needed to ask a question to rule something out but they couldn't be bothered and were quite rue about it the next day. I'm not surprised - it's sort the way of the (non) service industry today and especially in this area with its incredible wealth and overpopulated area - there's always more customers so there is not much effort to keep customers or even treat very long term customers with respect. In any case, I'm loyal but when I'm mistreated m, I'll shift my loyalty. I know D&D doesn't care. I unfortunately have a contract for another with them but I'll be calling others as my AC unit is quite and I know it needs to be replaced in next few years and I need a reliable HVAC company. If you are looking for service, I recommend looking elsewhere.

Baha the designer is unbelievable. He and his team who actually remodeling were great. Baha worked…read morewith me hours to selected quality and reasonable cabinets and countertops. Everything was scheduled as he promised. They finished the whole kitchen less than the promise date. His crew was respectful, clean and did outstanding job. Me and my wife still in a shock the quality and the outcome of the project is outstanding. Thanks again Baha and his team.

I walked into this store with the intention of purchasing 75 sq ft of tile for my home. Although…read morethere were 2 employees in the showroom when I walked in, no one spoke to me, even when I made direct eye contact. They both acted as if I wasn't there. It's a shame that I had to leave without the opportunity to purchase any tile, because the employees refused to acknowledge that I was even there. It was clear that they were open from the unlocked door and the open sign was turned on.

Earlier this year, my wife and I hired Glenmont to install a Carrier AC unit and a Bradford water…read moreheater. Haddon was a pleasure to work with and patiently answered all of our questions. Glenmont's customer service has been excellent as well. There were a couple post-installation hiccups, but Glenmont quickly dispatched a crew member to resolve them. My wife and I have hired Glenmont on three occasions and have been very happy with the quality of their work. Highly recommended!

I had been (foolishly) paying $600 a year for their "Comfort Club" service. It's really just an…read moreexcuse for them to make a sales call twice a year. 6 years ago, when they installed a new high-efficiency HVAC for the house, it took them days to get it working and 3 visits from the county to pass inspection. Subsequent Glenmont techs were confused by various aspects of the installation, to the point of making changes in an attempt to get it working properly. This past year, they determined the CO output level was too high and shut down the furnace completely during the coldest week of January. They said they'd get back to me that day. They did not return my calls for 6 days! Where was my "Comfort"? Must be the comfort of the owners that is mentioned in the name of the contract! The kicker? They could have just switched us over to electric heat for the week, but they took more joy in just letting us freeze. Sales calls were very hit-or-miss with the level of the technician assigned: -One tech told me I had the wrong thermostat for my system and wanted to sell me a new one. -One tech told me my blower motor was rusted out because the drip pan had backed up and was about to fail. I told him no and used it for another 6 years. -One tech disconnected the overflow pan sensor on my attic air conditioner, causing a flood that dripped out of the light fixtures in my foyer. However, the Service calls were consistent! They got more expensive every year! Regularly, the cheap starter capacitors on the outside heat pumps would blow on very hot days. Glenmont would come out and replace them with another $45 capacitor and charge between $172, and $452 (this past cooling season).

Excellent service with all new heat pump installation. They were on time, there for two days, took…read moreout the old system, moved the new system to the side of our house and answered our very detailed questions over several months regarding the inner workings of a heat pump system. We waited for a new model and everything went smoothly. Very professional and knowledgeable. We also received a similar quote from Capps and it was very difficult to choose between them We also tried to get a quote from Hecox, Someone came and then they never gave me a quote despite my urgings. We thought that was strange. So, Atlantic Coastal won out in the end for our project.

It's amateur-hour at Atlantic Coastal. Three days after a regular maintenance appointment, the AC…read moredrain pan overflowed. A different tech was dispatched and proceeded to tell us the thermostat was somehow to blame. That tech then ineptly rewired our compressor and told us the reversing valve was bad and that the overflow was because the whole AC unit was due for a $10k replacement. After a lot of frustration and worry, I decided to do my own work. I bought equipment to blow out the drain myself and sure enough, the first tech had managed to clog it, because once I did it myself, the system ran fine for the rest of the cooling season. Dry as a bone; not a single pan overflow. There was $10k saved. When it came time to switch to heat mode, the system wouldn't switch. Since I was told the reversing valve was bad, I thought that might be it. So I called a different company. Their tech took one look at the compressor and said "This is wired incorrectly, someone jumped your heat and ac lines together." The tech from a different company rewired it and the system entered heat mode with no issue. They say, don't attribute to malice that which can be attributed incompetence. So when one Atlantic Coastal tech clogs the drain line, then the second incorrectly rewires the compressor before telling me the whole system needs replacement... The nicest thing I can do is attribute it to incompetence.

Had them come out to do a routine checkup on our HVAC. The technician, Bill, arrived on time and…read morewas very respectful as he moved about the property. No upselling, which as a single mom, I encounter ALL the time. I was really happy and surprised when he noted on my invoice "everything is running well at this time." I wouldn't hesitate to call them again for routine maintenance or any other issues.

Germantown is are go to HVAC company. We trust them and they show up on time. One winter, our…read morefurnace went out during a blizzard and the owner managed to get here. That was dedication! Another time, our air handler in the attic didn't have an automatic shut off or a tray under it so water came pouring through our ceiling! They fixed that too! And their price is fair. I would always recommend them!

My AC unit shut off and I got an error message from my Nest thermostat, so I immediately called…read moreNelson. He answered right away and walked me through troubleshooting the issue. His professionalism, knowledge, and willingness to help were truly appreciated. Nelson is always dependable and a total lifesaver whenever we need assistance. Excellent customer service every single time. I will forever be using Gaitan Services LLC for all of my HVAC needs and highly recommend them to anyone looking for honest and reliable service.

My radiator heat went out on a very cold night. Nelson came the next day and diagnosed the broken…read morepart which had to be special ordered. He was able to fix the boiler short term so we had heat while awaiting the new part. Once he received the part he came back and finished the job. Throughout the process excellent communications, showed up when promised, cleaned up after himself, and the price was very fair. Overall, excellent experience and I highly recommend.

When my AC failed, Mike himself came out the day after I first called and a day where temperatures…read morewere approaching 100. While other companies blew me off until their schedule was clear (well into the next week), Mike didn't want me to suffer. He arrived on time, walked me through what he was doing, had the tools and part he needed on hand. Very knowledgeable and polite. Like any good business person, he said my 15 year old unit needed to be replaced, which is true. He did get the AC unit working and I will definitely call him to install a new unit!

Heater died and Mike and his team were able to get a new gas heater installed in just a few days…read more It wasn't cheap, but it was a big job and they did it very well. You might be able to find lower quotes, but don't sacrifice quality for a slightly better price.

If you're looking for honest service, decades of experience, and a knowledge base that covers just…read moreabout everything HVAC-related, I highly recommend Sierra Heating and Air Conditioning. Years ago, our furnace went out, and Jim, along with his charismatic helper, Ed, came to the rescue. Instead of trying to sell me a new furnace, Jim diagnosed the problem and repaired it for about $300. That furnace kept going for another seven years. When the time finally came to replace both the furnace and AC unit, Sierra once again delivered exactly what my home needed at a fair and reasonable price. Then came yesterday's brutal heatwave. Our AC suddenly quit working, and with temperatures soaring, it couldn't have happened at a worse time. What a relief it was to call Sierra and have an actual human being--Jim himself--answer the phone. Before noon, he was at the house, diagnosed a failed capacitor, made the repair, thoroughly checked the system, and had cool air flowing through the vents again. After hours of sweltering heat, that cool air felt like paradise. What makes Sierra unique is the personal service. You're not dealing with a call center or a revolving door of technicians and getting put on a waitlist. You're getting customized, hands-on attention from a seasoned professional who genuinely cares about doing the job right. In a world where good customer service is becoming increasingly rare, Sierra Heating and Air Conditioning is a reminder of how valuable experience, integrity, and personal attention can be. Highly recommended.

You have read the other fine comments about this business, and they are indelibly true. Jim is…read morepersistent in tracking down the cause of what needs to be fixed. And he succeeds because he has years of experience that give him an edge many others are working towards achieving. He does not push on the client unnecessary repairs or extras. Reasonable priced and professionally effective, Jim and his helper, Eddie, are the human equivalent of the standard that Sears Craftsmen tools used to be. There is no reason to choose another.