Fardeen is the best! Had a great visit for a diagnostic of a sound coming from the outside fan, which he was able to assess with ease. He also pointed out some upcoming service recommendations I'll need to tend to, and went over the company's excellent membership options to save me money. 10/10 would recommend Fardeen again! read more

Allison was very helpful in setting up my visit. Sean was excellent! very professional and helpful throughout the whole process. He explained why my AC was leaking and gave me all the options to get it resolved. Thank you both! read more

I scheduled an appointment with Air One after my heater wouldn't start and my AC would shut off after running for just one minute on high. Fardeen was the technician who came to my home. After a lengthy diagnosis, he told me the blower was bad, the furnace control board needed replacement, and there were a few other issues I didn't fully understand. He recommended a complete replacement of the HVAC system and arranged for a salesperson to discuss new system options with me. I asked for an estimate to repair the system and a copy of the diagnosis report detailing his findings. He said he would send it later due to poor internet connection. I paid the $98 diagnostic fee. Given that replacing the entire system is a big investment, I scheduled Bluestar Air Mechanical for a second opinion. Their technician found and replaced some burnt wiring in the furnace and fixed a capacitor that had been incorrectly installed in the AC. This got both the AC and heater working again. Based on this experience, I would not recommend Air One. They seemed more interested in selling a new system than resolving the actual issues or may not have had the expertise to fix the problems that Bluestar was able to handle in a single visit. When the choice is a new unit, always get a second opinion ! P.S. I got a call from the office manager offering to refund the $89 diagnostic fee if I take the review down. I declined. read more

My experience with Air One began with mold in my old hvac system. I had it remediated by a company, but they only handle ducts and vents. So, I called Air One to inspect my furnace/central air handler. Sean and Tyler arrived, carefully listened to my description of what was going on, and then performed an inspection of the entire unit, including the outside fan unit. Sean worked up a quick estimate of cleaning and repair and talked me through what they were seeing. After dealing with mold, I wanted a fresh start. And after just a short amount of time with Sean and Tyler, I wanted to work with this company. Sean called Jack, a managing partner, who came over that afternoon to go over the options. Jack took a look for himself, measured everything necessary, and then laid out the options. He was very genuine and didn't try to sell me on any particular unit, he just wanted me to comfortable with what I was selecting. A few days later Elmer, Jose, and Andres arrived right at 8am for a day long install. They were meticulous professionals, working quietly and efficiently. Considering how much was being removed and replaced, I had assumed it would be a loud day of drilling and metallic banging, so I was stunned when halfway through the day I took a peek and saw that the old unit was gone, the new one was already in place. Their cable management was pristine, every single cable and cord was carefully routed and secured. It was a great experience with Air One Tech, who I will now have on a 2x year maintenance contract to keep everything running great (and also stay one step ahead of any future mold issues). 5 Star! read more

Jack with Air One was very knowledgeable and helpful in determining the right system for my home. In addition, they carry multiple manufacturers, including Trane, so you have more choice than other companies. Jack drew up multiple designs that I could choose from and then his team did a great job with the installation. Professional business, highly recommend! read more

Air One Tech - furnace and blower - Heating & Air Conditioning/HVAC Near Me - Chantilly, Virginia

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Second time using them. Great company. I would definitely use them again. Everyone was on time, knowledgeable, and trustworthy.

great job. had some issues with install but they were fixed with no hassle. Would recommend them if looking for new HVAC

AirOne has been the most helpful company we've worked with since we moved into our new home. From air conditioning to our boiler... they really came through. Especially in the hottest week of the summer, they brought us a portable AC unit. We had kind of a specialty unit for AC and they had no problems making it work. Customer for life. Thanks AirOne Tech! read more

Mr Fardeen from Air one tech and came to service on my 2 HVAC's and AC unit. He was very professional and went through the checklist and recommended items I should take care of, like one of the capacitor was almost rusted out..he changed that. I would hire air one tech for any of my hvac needs. The company and its technicians are all very professionals read more

Same day service! We came home to a hot house and we had a newborn. They were able to send a technician out same day and replace what we needed. What a relief! The thermostat was reading 80 something inside the house! We are so appreciative of the service Air One Tech provided! read more

Absolutely fantastic experience with Air One Tech. I signed up for their annual maintenance program and had my first tech visit today. My unit is in a crawl space under my condo and is not convenient but my tech Fardeen had a fantastic "can-do" attitude. I think he had the best attitude of any tech or handyman I have ever had come to the house, you can tell he really knows what he is doing - 100 stars for Fardeen! In terms of the signing up, confirming, and payment experience - Air One has this all perfected. I appreciated the text confirmation the day before and the heads up of the arrival time of my technician - they even include a photo of the tech! First time I have seen that and very much appreciated this detail. All in all I am very glad to be a customer of Air One for my AC maintenance needs and highly recommend to the community. read more

The entire team at Air One Tech was helpful, knowledgeable, and respectful. Fardeen Ferozi did our HVAC repair and started with a diagnostic to quickly determine the specific component needing repair. He used an iPad with special software to continuously ensure every step of the repair was proceeding correctly which gave us confidence in both his knowledge and his company's capabilities. Pricing was reasonable and I do recommend both Air One Tech and Fardeen. read more

I've used Air One Tech for repairs in the past, but last month (beginning of March) was the first time they installed a new heat pump and a water heater for my family. We've got a new Trane XR15 split system heat pump along with a 50G electric water heater. Elmer, Jose and Andres were the guys performing the installation. Superb client service and utmost professionalism is what brings this team together. With sense of urgency and desire to find solution and resolve any plumbing issue that might arise through the process. They don't leave anything to chance, providing timely and engaging communication. First-rate company, I will 100% recommend to anyone with a need to hire for an HVAC job. read more

Very knowledgable and friendly technicians. Best hvac service experience we've ever had! Definitely recommend!

We subscribed to get annual maintenance plan with AOT. We love the owner, the company, and their technicians. Every time they came, they would explain in details of what was done and if there were any issues and what needed to be done. They also took pictures, included them with details in the final email with the invoice. We wanted to give a big shoutout to Ben and give him a perfect 5-star review but we weren't sure how to do that on their site or how to send direct feedback (could be our fault for not seeing it). So, here we are posting it on Yelp. AOT, please let us know how to give rating and feedback on each visit so we could give proper compliment to the responding technician! Thank you AOT and thank you Mr. Ben! read more

They were quick to response and repair my AC. Darius the owner came to fix it and was very responsive and took the time to explain what the problem was. He also found another problem with the heating system ( which I did not know about) and he is coming back to fix the leak in the heating system as well. It is rare to find an honest and competent company. I highly recommend this business for their professionalism , honesty and technical expertise. read more

Air One Tech repaired my AC unit this summer. I was very pleased with the level of service provided. Fardeen was my technician. He was very thorough in explaining the issue. He did an amazing job repairing the AC unit. It has been a scorcher of a summer. So, I am very happy with the results! read more

Air One Tech replaced our heat pump and air handler. As a first time homeowner, I knew literally nothing about HVAC systems and I appreciated that Jack took the time to explain the options to me and spent the time to provide a thorough estimate. He never tried to up-sell me on anything. When we approved the quote, they were able to schedule installation in less than a week. The installation techs were very respectful of my home, completed the work as quickly and quietly as they could (as I work from home), and explained the system to me after they installed it. We had an issue with our circuit breaker so the first night the system shut off, but they had someone out first thing the next morning within 30 minutes of when we called them to fix it and were able to fix the electrical issue within a few hours. Highly recommend this company! read more

Outstanding!! The reviews got me to call Air One and they didn't disappoint. Darren was the technician who came and listened to the diagnostics that I had done to date narrowing down what I thought was the issue. He did a complete review of the system itself since it is an older system, and gave me his thoughts. Had been looking for a company for regular maintenance after just buying a condo and I purchased a maintenance contract while he was here. The part that needs to be replaced will be ordered and he inspected other areas of the system to be cleaned and will take care of that when the part has come in and is ready to be installed. Very nice, very personable and he knew his stuff. Very satisfied from the moment I called and spoke to the appointment scheduler through the time Darren arrived for an assessment of my system. I highly recommend Darren and Air One as a whole. I also thank my fellow Yelpers as their stellar reviews got me to the right company to fix the issues with my HVAC system. Don't wait, seek out this great company!! read more

This review is in appreciation of the professionalism and timeliness of response by Darius and Air One Tech. A few days ago, I arrived home to one of my AC units not working -- in 90+ degree weather. This issue required immediate attention as I house a senior citizen with myriad health issues. I called Air One Tech at 8:42PM and the owner answered the phone and told me he would be out to take a look at the unit first thing in the morning. Dariush arrived promptly at 7 a.m., and not only did he efficiently diagnose the issue, he corrected the issue on the spot and was able to get my unit up and running in under 1.5 hours. He had all the parts needed to fix this issue on his vehicle -- I'm so used to hearing "I don't have what I need to fix this, I will have to come back," that it was quite the relief once I knew I wouldn't have to burn another day off work for a return visit. Not only did he come armed with a sizable inventory of common parts and equipment, he also proved to possess a wealth of knowledge and carefully explained everything he was doing. Additionally, I was amazed at how courteous he was in ensuring that every area of my home in which he worked was thoroughly cleaned up afterwards and how mindful he was of my home and my property. No marks , dings, scratches, boot prints, left over pieces of wiring/plumbing/etc. He wore booties each time that he had to come in and out of my house, and he treated the property as if it was his own. It is rare and refreshing to see such professionalism in this day and age. Couple that with his kindness, knowledge, and his years of expertise, I feel zero hesitation in giving him and this company my highest recommendation. In need of a company for your HVAC needs at a fair and competitive price? You may stop looking; you've found the right place. Thank you Dariush and Air One Tech. A+ and 5 stars! read more

The great reviews are fully deserved. I had Dariush and Air One Tech replace a furnace back around 2018. They were excellent, didn't try to uspsell me, and got the job done at the right price. Because of my good experience in 2018 I called them again a couple of months ago, to look at a boiler. Dariush was as I remembered him - friendly, knowledgeable, and willing to talk about options and the pros and cons and cost/benefit of everything. I ultimately opted to replace the boiler, and Dariush's team did excellent work. A week or two after the replacement, Dariush came out for a complimentary "check up" to make sure everything was working properly, which it was. A+ work, A+ service. read more

Our HVAC was struggling to keep our house cool during this crazy heat. We reached out to air one tech and they had someone come out the same day!! Dariush was incredibly thorough & helpful! We had two other company's come out and we ended up choosing air one because of how knowledgeable, supportive, & kind they had been from the first visit. Dariush was always available to speak to us and did on numerous occasions when we had questions. He even took the time to give us multiple quotes on different systems when needed. The technicians on the day of install were wonderful as well. Highly recommend!! read more

Dariush is awesome!!! He is the owner of the company. He personally came out and gave me a quote. Now, he will be the first to tell you that Trane is the best equipment. It is. I received 4 other quotes that were similar in price but not Trane. Also, I could tell Dariush took pride in his company, I could trust him, he didn't try to oversell me on anything. I could also see that he actually cares about his clients. I went with Air One Tech because the price was right, the equipment is was the best and he was not far off from the 4 other quotes. I can't say enough of how pleased I am with him, his company, my new a/c and furnace and his team who installed everything. It's taken me some time to write this review because I wanted to put some effort into it. I would say go with Air One Tech to anyone and the quality of Trane is far superior than some of the others. I have done my research and I am very pleased and confident in my decision to go with Dariush and Air One Tech. I have seen a carrier system and some others you can tell how well Trane is made compared to them. I would not recommend skipping out on quality for a 15-20 year system that will last with Air One Techs maintenance and Trans warranty as opposed to a 10 year system for a few hundred dollars. That's really what the difference was. Additionally the other quotes I got you could tell it was just some salesman sort of selling their company's product. They provide little explanation and gave few options. Dariush is extremely thorough, has a background in engineering and will sit down and work with you. If everyone went off of my review I could save them a lot of time, effort and scheduling of estimates. Simply go with Air One Tech. These guys are the best! read more

This was a wonderful experience and we are happy with the product and service. We would highly recommend.

I wish we could rate 6 stars... Our AC went out, and we called to get it serviced around 11am on a Tuesday. A few hours later someone was at the house! Unfortunately the system was shot (no surprise for a 20+ year old system), so we purchased a new one. The owner even stopped by on Wednesday with a portable AC to get us through, and they were at our house with the new system ready to install that Thursday at 8am! (Yes, you read that correctly. The new system was being installed within two days of our initial call). The install went very well. The guys were professional, knowledgeable, and worked very clean. In fact, there was nothing at all left for us to clean up once they left. If you are looking for a company for your HVAC needs. Stop looking right now and give Air One Tech a call. You will not be disappointed! read more

We needed a new HVAC and that's never fun. After 3 estimates we chose Air One Mechanical, because of reasonable price and reading their reviews. We are very pleased and satisfied with them. Thier salesperson "Jay" very knowledgeable and friendly, their installation manager "Kian" is terrific and courteous. "Bahar" provides excellent customer service and their installers were very quiet, considerate of the home environment, did their job perfectly. In general, great people working as a team. We are impressed with them and highly recommend them to everyone who is looking for HVAC. read more

Update: I recently called due to my secondary system appearing to have gone out and Dariush gave me some things to look for over the phone. They were right on target and his suggestion resulted in a simple fix I could do myself. Awesome. I'm still asking them to come check my system just to be sure, but that willingness to assist over the phone was outstanding. read more

These guys are responsive, honest, communicate well, and everything worked perfectly. And, the price was extremely reasonable! The fan was broken and they got the part late on Friday, and came out that same day to install it so that i would not have to deal with the summer heat all weekend. Would use these guys again in a second and recommend them to friends. read more

Thank you so much for fixing our AC. Our AC just died on us last night, and these guys got it working the next day. We were dealing with 84F with close to 50% humidity indoors last night which is bad news for somebody that has heat intolerance due to a past heat injury. We were worried that we would have to have the entire thing replaced, but these guys got it working quickly. Thank you! read more

So far so good. I've had a good experience with Air One Tech so far, primarily because of Fardeen and the excellent service he provides. He thoroughly examines everything during service calls and takes pictures before and after so you can see the improvements and repairs. He explains everything and helps you make informed decisions. Beyond that, he is very good natured and always has a smile on his face. You feel confident knowing that your issues will be resolved. read more

Best experience ever! The tech was incredibly knowledgeable and knew just what the issue was. Was able to fix it in a jiffy, price was right, and shared with us exactly what he did. He was also just an amazing person. So glad I came across this company! read more

Prompt and friendly service provided even though it was not an emergency. Techs were professional and office staff (Allison) great to communicate with. Very happy with their service and installation, now we will see how system performs and their follow-up maintenance as we have a long-term agreement for regular checkups. read more

i've probably used 4 - 5 different heating/AC type companies the past 20 years. I would have to say hands-down I've had the best experience overall with Air One Tech. The owner is very responsive and incredibly knowledgeable. We had the team of Angelo and Amir come out and service and repair our heating/AC system and another time to replace our hot water heater. They both are friendly and courteous and did an excellent job. Before they left they cleaned up everything and made sure all of our questions were answered and we were 100% satisfied. They make a great team and the owner is pleasant to deal with and their prices were incredibly reasonable. I would definitely recommend them and I plan on using them in the future when any other issues arise. read more

My AC unit while working, was not working at the level it should be so I called Air One Tech. Fardeen, the technician, was timely, courteous, professional, and incredibly thorough. He performed numerous diagnostic tests and made necessary repairs and suggested one additional optional repair. I was extremely happy with the service and will absolutely use them again. read more

Five star rating for sure. People on phone were professional and responsive with a furnace that failed on a Sunday morning. Had a guy out here in a couple of hours and he fixed the problem and pointed out a couple of other potential issues to address. Jay was exceptionally professional and thorough. He even tweaked a damper on a room that always got the least amount of air and fixed a nagging problem for us. Couldn't be happier witht heir service and results. read more

Air One Tech has done an outstandingly professional job responding to my short notice request to service and flush my water heater. Alison was very courteous, informative, and simply pleasant to talk to. The technician notified us of his arrival in a timely manner and completed everything very quickly, but very thoroughly. After servicing, the issue was instantly resolved. We also received a very detailed report with pictures and recommendations for the future. Overall, a very professional service. Will refer to in the future. read more

Highly recommend. Used Air One for a full HVAC replacement in May 2022 - they not only provided a lower price than my other quotes, but Dariush walked me through the process and was prepared with visuals with a binder. Fast forward to Dec 2022 and my unit had an issue (no fault of Air One, manufacturer defective part). Air One came out that day (Friday) to diagnose, ordered the part, and installed on Monday. This all was covered under the warranty. They are professional, responsive, and use technology that texts you when the tech is on the way and provides their location on a map. Very positive experience and Dariush takes care of his customers. read more

I needed a chemical cleaning of the exterior coil and a regular maintenance checkup and Daniel was top notch. He was professional, courteous, and friendly. He wore a mask and stayed 6 ft from me whenever we had to interact. I am very happy with my service, except he said he would check to see if there was a discount on the yearly maintenance fee since I have electric baseboard heat for the winters. I never heard back from anyone, so I guess the answer is no, there is no discount for only needing a/c maintenance. That is the only reason I gave Air One Tech 4 stars. Otherwise, it would hav been 5. Update: the owner of the business contacted me and gave me the discounted price that was suggested by the tech Daniel. He said this was in the works prior to them reading this review, and I am prone to believe him. I am very happy with the rate and would recommend Air One Tech to anyone in need of a/c or heat repair. read more

OK, this goes way beyond. I called them to schedule a maintenance check/service visit. I was a little concerned because it seemed a wet switch on our system had tripped; it's usually a false alarm, but I needed a pro to be sure in this case. They've already done excellent work for me, so I called them again. They moved me a up a couple days sooner from the original date, since the unit wasn't working, but wasn't an emergency. This, in and of itself, was great of them, and I appreciated the priority service. I also realized that the new date was my son's birthday - so I asked them if we could do late morning/early afternoon and be done by 2pm when my son got home. They said that would be no problem. Not only did they show up on time, do a thorough job checking and resetting the system, and finish everything long before my son was home, but - BUT... They showed with with an Amazon Fresh bag with a CAKE and BALLOONS. The technician (Ben) said, "I understand it's someone's birthday?" I couldn't even remember our conversation at first - but they did. This simple (but hard to coordinate in addition to a service call???) act of kindness speaks volumes about the kind of business they are running, and the kind of people they are. I hesitated to add this detail to my review at first, lest this be an expectation for every service visit - but this needed to be said. What a great experience, and something we'll always remember. read more

I have been using Air One Tech since 2008. They have always been professional and thoroughly explain issues with my HVAC system. I've never had an issue with them. read more