Learned about Cold Comfort HVAC while researching companies locally bc we needed to replace our…read moreentire HVAC system in the Fall. Cold Comfort was our 3rd company to provide an estimate and to come out to assess my unit, etc. The owner, Gabriel was the reason we made this company our choice. He was down to earth, honest and provided solid reasons why they choose the products they use. Our unit was over 25 years old, had served us well and I was unfamiliar with some of the other brands being offered now. We were a "Carrier" family. They were immediate in responding with a same day appointment for the service call and we were scheduled for installation withon the same week On the day of installation, his amazing team arrived right in time w/ cheer and professionalism. They explained what they were doing and how, lines my floors with cloths and covered their shoes to avoid a major mess, they were efficient and communicated with us throughout the removal and installation process. They cleaned up after themselves leaving us with very little to do other than dust. They showed us how everything worked, how to troubleshoot if need be and how to communicate if there were questions or issues. In total, Cold Comfort replaced the entire HVAC system, our humidifier, thermostat and then several days later, our water heater! Whew!!! We have been extremely pleased with everything so far and are grateful we found such a wonderful company to work with before winter! We highly recommend Cold Comfort HVAV services! You won't be disappointed!

Our AC went out a little over a week ago, of course it happened toward the end of the week so it…read morewas Friday afternoon by the time we realized it wasn't something routine maintenance on our side would fix. Jary (who helped us when we first moved in) came out on Tuesday and said we had a leak somewhere since the closed-system unit was totally out of coolant. He came back Weds. to do the leak detection and found the leak, recommended a new coil. We had the new coil installed on Friday; this time it was Ricardo and team that did the work installing the coil. They did a great job and a couple hours later our house was back to normal temperature. Gabriel helped us with all the coordination and estimates and seeing if the part was still under warranty (it wasn't, but I didn't expect it would be honestly.) No one likes spending a bunch of money on repairs but I'm very confident that the recommendations Jary made were sound and correct. He did not attempt to upsell me at all, which is greatly appreciated. (The estimates Gabriel sent did include options for replacing the unit, but that wasn't necessary at this time and there was no pressure to do so.) I will continue to call them if we have issues in future with our HVAC system.

Quick and professional. They came right away after I call. Highly recommended for serviceread more

I highly recommend this business whenever you have ac issues! After getting a couple of scamming…read morebusinesses only interested in taking your money, and not helping, we found MD Heating and Cooling in Ellicott City. They were very professional and experienced and fixed the issue quickly. Thank you, Debbie.

The A/C at my office was not working and I couldn't keep working in a sauna. I called the main line…read moreand Scott came out, same day to troubleshoot and diagnose the issue. By the end of his visit, he had refilled the freon in our rooftop unit. His price was good and the service was quick and efficient. I'll definitely call again if we need other HVAC services! No one asked me to write a review, but I wanted to share this experience.

Third review and third time satisfied customer. After having Andrew come out to maintainance our…read moreheating system, it stopped working overnight during the snowstorm. The owner Scott called me to assure that someone would come back out...sending our Andrew again before 12. All was explained to me amd fixed as well as suggestions made for the future. Thank you again for making customers your priority always!

All around great service. I called one minute before they closed on Thursday and was still…read moreassisted. I explained that while I am no expert, there being a steady drip of water coming from my AC onto the basement floor seemed to be a problem. The woman helping me offered up that perhaps I should check my filters, but we could go ahead and schedule an appointment anyway, which could be cancelled if that was all it was. It's summer and I expected them to be backed up with calls. I was given the option to have a visit the following Wednesday, or someone could come by on Saturday morning first thing, though it would be at the emergency rate. I went with the latter. Ivan showed up Saturday morning, introduced himself and had the clog issue figured out within minutes. He explained what he was going to do to take care of it, and got to work. When done, he let me know other issues needed to be addressed, but it would be less costly if I scheduled those outside of this visit and also weren't necessary to fix the issue I had originally called about. He explained point by point what else they would do if I decided to set up the additional appointment, how long it would take, and the price. I paid my bill with Ivan, and was sent an electronic receipt with the plan. Ivan departed and the leak was fixed. All is well. Fantastic service.

Environmental Systems Associates replaced my furnace, air conditioner, and water heater years ago…read more I was happy with the work and equipment, and I thought the price was fair for quality work. A friend is convinced that I overpaid, but ESA was comparable to other quotes I was given. Recently, I smelled gas by my water heater - I had to be very close to smell it. Some people online say this is common, but I didn't want to take the risk, so I had ESA come out to check. They told me it was an issue, replaced the "bad" part they identified, and charged me $945. The new part also smelled like gas. I reached out to the manufacturer, Bradford White, and found that this is normal. I reached out to ESA to discuss their mistaken diagnosis and unnecessary replacement.. I called three times and sent three emails, but the only response I got was "someone will call this afternoon." Nobody called that afternoon or any other. In the end I had to issue a chargeback through my credit card company. I do not plan to work with ESA in the future. Edit: I've reached out, per the comment below.

Mike w/ AG Heating & Cooling and his partner were great! They arrived on time and replaced my…read more35-year old system per our agreed Statement of Work & price. I will definitely reach back out to them for any future HVAC needs. Highly recommend!

AG Heating and Cooling installed an HVAC system for my father last year. Unfortunately, the system…read moreis not working properly this year, and I have had a very difficult time getting any response from the company. I have tried reaching out multiple ways, including email, Yelp message, phone call, voicemail, and text message, but have not received a response. I understand companies get busy, but when a recently installed HVAC system has an issue, I would expect some level of follow-up, especially if warranty service may be involved. Based on my experience, I am disappointed with the lack of communication after the installation. The initial work may have been completed, but the lack of response when a problem came up has made it difficult to recommend them.

We just had a new HVAC system installed at our house and Vic and Noel did a tremendous job. They…read moreboth provided highly professional and knowledgeable service throughout all aspects of the process from the estimate to the selection of the correct equipment for our house to the installation and subsequent affordable payment. All the while Vic kept us informed, communicating and explaining everything so there were no surprises. We couldn't be happier with our new HVAC system. I highly recommend Sichinava Heating and Air Conditioning for all your HVAC needs.

Excellent Excellent Excellent!!! Vic came through with a short notice and was very knowledgeable on…read morethe issue. I highly recommend!

We lost heat and it was cold. Daniel with Carroll mechanical came out quickly and assessed the…read moresituation on a Friday of a holiday weekend. He took the time to explain what was wrong and his process. He determined the problem and applied a solution that got our heat up and running again. Here's my real review. I will use them again. I feel like I now have an HVAC guy. Small business, local company, good friendly people, honest pricing. Thumbs up.

Carroll Mechanical was recommended to me by a friend and after my conversation with Thaice, the…read morecustomer service rep, and Derrick the technician who worked on the HVAC unit, I can see why. Both were so helpful and knowledgeable and answered all my questions (and I had a few). I wouldn't hesitate to call on Carroll Mechanical again and I definitely would recommend them to my friends as well. The service is 5-stars, quick appointments and pricing is fair.

Diagnosed and repaired problem with furnace very quickly. Problem was with the gas furnace…read more electronics board.

I scheduled an annual service with Greenfox. They came out on 5/6/2026 and performed the service…read morefor what I believe was $99. They said everything was good to go - no issues. Two weeks later, on 5/18, the air conditioning stopped working. They market themselves as 24-hour, so I called 5 times that evening. They have a system for screening their calls. I communicated several times that this was an urgent concern, as I have 5 pets who would be intolerant of the 100-degree heat forecast for the following day. Even after dark, my house was 85 degrees. After those calls, I received no calls back. The next morning, on 5/19, I scheduled a morning appointment with Greenfox and then chatted with them via their chat system. The person on the chat assured me that this was a concern. They reported that they marked my appointment as urgent and would register a complaint with the company on my behalf. They assured me that the tech would leave and arrive at my house by 8am. 8am came and went with no call or contact from Greenfox. I logged on to the chat again and spoke with another agent and recounted everything that had happened previously. They said they could do nothing but make appointments on the chat. I said that I did that morning and was told the appointment would be around 8. They said I would have to call the office. I told them that I already had 5 times, and I received no return call. The chat said there was nothing they could do. I then spent time I could have been working calling other companies to try to get service, as the house was getting close to 80 degrees at 9:30 AM. A tech from Greenfox eventually arrived at around 11:15. The company never called me back at all; they didn't let me know he was coming. I received an automated text that the tech was coming 15 minutes after he arrived. He found the issue, which should have been discovered two weeks earlier at the servicing appointment. The tech then left, saying, "I'll send you the invoice." No discussion. The tech then charged us $245 for a problem that should have been caught during the initial service we already paid for. Getting an annual service from this company is useless. It appears they didn't thoroughly review for potential issues, which has left my AC not working on the hottest days of the year so far. There was no consideration on the second bill for the poor work of the technician who came out to service. They don't answer phone calls. They don't call anyone back. They don't let you know a tech is coming. Their chat responses are, at minimum, disingenuous and, at worst, outright lies. And then they still charge you double, even though it was their error. There are far better and more reliable companies in the area, with whom I will be contracting going forward.