Highly recommend this HVAC company. They were extremely responsive, offered some of the best…read morepricing compared to other quotes I received, and were able to schedule me either same day or next day both times I needed service. The technicians were professional, honest, and easy to work with throughout the entire process. Also wanted to give a shoutout to Tra and Mary, they were both fantastic with communication, scheduling, and follow-up, and made the whole experience smooth and stress-free. Really appreciated the quick turnaround and quality service. I'll definitely be using them again in the future.

Called Residential Express for a full-system replacement quote in October. Was pleased with the…read moreexperience, which simply involved taking measurements and asking what changes I might want with the setup--much better than the high-pressure sales pitch from the bigger companies in the area. We pushed off the replacement thinking our unit would survive one more winter, but of course of furnace went out unexpectedly in the middle of the night during one of the coldest stints of the season. Called Residential Express the following morning, they pulled up my quote from 4 months prior, verified the price hadn't changed and were able to schedule me for a full HVAC replacement the next day. Freddie and Flavian arrived on time and were very professional moving through our house and working in our backyard and utility closet. They explained any changes they needed to make, went over the new setup and recommended service intervals, and hauled all of the old equipment away, leaving our house looking better than when they arrived. Very happy with our experience with Residential Express and wouldn't hesitate to use them again.

Great experience with CD Shanahan's. Ultimate due diligence and customer service. Never tried to…read moreover charge and made sure the job was completed. Scheduling was a breeze and always arrived within the window with a good heads up. Will use again for our heating and AC needs

Connor and his team continue to be the standard in the Industry. They are consistently on time,…read morereliable, reasonably priced, and courteous. They take pride in their work and taking care of customers. CD Shanahans is a top tier service provider in the DC Metro area. Highly recommended!

I recently had my first service visit with Cold Comfort, and I was very impressed. Jerry was the…read moretechnician who came out, and he was knowledgeable, thorough, and easy to talk to. It can be difficult to find honest and reliable HVAC companies, but this experience stood out. I had several questions prepared about my refrigerant, capacitor, and overall system, but I found that I did not even need to ask them because Jerry naturally addressed those topics during our conversation and explained everything clearly. He also completed a detailed inspection of my HVAC closet and offered a helpful recommendation for a better filter. The service was straightforward, with a flat fee and no upselling or pressure, which I really appreciated. Overall, it was a great experience, and I will definitely be using Cold Comfort again for my annual maintenance.

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.

I found them through Yelp project among 10 others and after talking to reps I decided to stick with…read moreReddick,because of clear explanations of pricing and upfront fees. It's unbelievable but some companies required upfront deposit even before assessment of the issue. Our technician,Brian,was on time,called prior,came with shoe covers,quickly identified problems with toilet,gave us estimates and couple options to think about. I called next morning and next business day he returned and completed repair. Again on time,very professional and leave no dirt or waste after job. Prices are horribly high now everywhere,but plumbing can't be avoided,so their price point is adequate to area,but service is superb. Can't deduct star for high prices,because they are using gas and supplies which are horrible now.

Do not trust them. They came out, gave an estimate, then after paying a deposit decided they…read moredidn't want to do the job leaving us high and dry. Now we have lost time in getting the work done.

This is my second time using BlueStar and I have nothing but amazing things to say about them. The…read morefirst time they fixed my furnace which had build up on a sensor which was an easy fix. John came out and was very straight forward and up front with everything he did. He explained the issue to me, how he would fix it, and even provided some recommendations I may want to do in the future. My second time I used Bluestar was on a Sunday and they are closed on Sunday's. I did not realize this at first and left them a voicemail in the morning. Realizing they were closed I called another company who would have charged me more than Bluestar to come out later that afternoon to look at the problem which was that my Nest Thermostat was giving an E73 error code meaning it was not getting power. To my surprise I received a call from John at Bluestar that afternoon prior to the other HVAC company coming out. I discussed my thermostat issue not getting power with John and he suggested several troubleshooting fixes I could try over the phone. After eliminating several causes of what the problem may be John suggested holding down the front panel cover switch to the unit to see if a power light was coming on. In doing this I noticed sometimes the light would come on and sometimes it would not. There seemed to be a loose connection in the a wire that was causing the switch not to supply power. After playing with the switch for a few minutes I got the power to stay on and the problem was fixed. John solved my problem and saved me a good deal of money as I canceled my appointment with the other HVAC company. John took over 20 minutes talking to me on the phone going above an beyond to help me solve my AC issue on the day the company is closed. I would highly recommend BluStar to anyone and will use them for all my future HVAC needs.

My AC suddenly stopped working yesterday. I checked the AC compressor unit outside my condo and…read morenoticed it wasn't turning on when I switched on the AC. I called BlueStar and they were able to squeeze me in within a few hours. Isaac was able to diagnose the problem quickly and got my AC running. He was very professional and explained the issue. I've been BlueStar customer for several years and will continue to be one for their great service.

I reached out to 495 HVAC at 5am in the morning after realizing my HVAC wasn't working on one of…read morethe hottest days of the year. Lupe reached out to me as soon as he arrived in the office (730am) and showed up at my house at 8am. The weather was predicted to be over 100 degrees all week, so it was urgent I got the HVAC fixed. Lupe was very timely, respectful, and knowledgeable. He explained what he was doing and what needed to be fixed and he was able to fix the issue on the spot. I was so worried about not having AC during this very hot week, but 495 HVAC helped me out in a pinch. Thank you, Lupe!

Pretty good company. I do some small work myself, but when something more serious is needed or HVAC…read moreunit needs to be replaced I call them. They just installed new furnace at my house and I was pleasantly surprised that they redid duct work around furnace for the HVAC unit to work more efficiently. Very reasonably priced.

My wife found Air Treatment Heating and Cooling when we needed a new HVAC system installed in our…read morecondo, and the experience was excellent. Shortly after, I had an urgent need at our single-family home to inspect the system and rebalance airflow. I spoke with Dan (the owner), and it was genuinely refreshing to deal with someone who clearly cares and takes pride in the work. Dan sent Mike out, and Mike was fantastic--easy to talk to, knowledgeable, and he got everything dialed in. I even learned we have three dampers I didn't know existed. ‍ It's a real pleasure working with a company that's owner-run and service-focused--not the private-equity "roll-up" model where the goal is volume and upsells.

Very attentive and professional. Came out in a hurry and helped resolve problems. Good…read morerecommendations for adjacent vendors as well.

I sent a quote inquiry via Yelp and Residential Express Heating & Air responded with a quick,…read moreaccurate quote. Scheduling was easy and was done directly through the Yelp app. On the day of service, Brice and TJ arrived on time, wore shoe covers inside the house, and walked through the work order. They were done with our duct cleaning in about 2 hours. I requested an additional, same-day service and they were able to accommodate our dryer vent cleaning at the same time. I consider Residential Express's service to be good quality and good value. They were particularly courteous of our pets and reminded us there was a discount coupon available on their website! We currently have an annual HVAC contract with a larger company we are unhappy with. Residential Express Heating & Air offers personalized service and are definitely considering switching our annual HVAC service contract. Thanks again for helping us take care of our home. I highly recommend sending Residential Express a message about your next HVAC project!

The folks were professional helpful and fast. I appreciated their explanations and adviceread more

I'm very pleased with the service that Saul provided and would definitely use Tim Whistler Plumbing…read more& Gas Fitting in the future. There was an initial mixup about the appointment time, but that was soon sorted, and Saul contacted me prior to his arrival and arrived on time. Quickly getting to work, he identified the problem with our gas insert. He was able to fix the immediate problem to return it to working order and then explained what was happening and why. He also provided what next steps would be for a more permanent solution. It was a very professional, friendly service call.

We needed some gas lines redirected, and Whistler was available quickly and offered a free quote…read more The employees were friendly and professional and pointed out some issues and made relevant suggestions. The work was agreed upon after we received the quote, and the service team were prompt and did an excellent job. These folks seem like honest businesspeople who don't try to upsell you. For disclosure, I also checked with Roto Rooter and they suggested a quote of $6,000 to redo everything, which was completely gratuitous. Roto Rooter was also incredibly rude over the phone and during my appointment window asked me do I still need someone to come out.

Great price and awesome coordination. Mike installed a…read morewhole house humidifier that we had purchased. He was on time, friendly and knowledgeable. I highly recommend Ashburn HVAC!

Update 04/30/26: our heat pump is wonderfully fine, worked great through the winter and spring and…read morenever needed