
Serving Ashburn, VA and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"Very Knowledgeable! Isolated the problem in less than five minutes. Extensive Heat Pump Expertise."





+2


Serving Ashburn, VA and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"Very Knowledgeable! Isolated the problem in less than five minutes. Extensive Heat Pump Expertise."





+2

Serving Ashburn, VA and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"The best customer service I ve experienced. Immediate telephone response (during a 3-day weekend) and Albert arrived within an hour, diagnosed the problem quickly, made the repair and thanked me for my business. Cost is fair and service is outstanding. Definitely my new HVAC guy, period. Highly recommend you call Magna Tech (Albert) for any HVAC issues."





+4

Serving Ashburn, VA and surrounding areas
Approved (Corporate)
In business since 1950
Free estimates
Emergency services offered
"Technician was prompt, responsive, knowledgeable and honest. He checked our sump pump out and determined that it did not need services or needed to be replaced. At no cost to the consumer."


Serving Ashburn, VA and surrounding areas
Approved
In business since 2001
Free estimates
Warranties offered
"The technician arrived in a timely manner. He was professional and very competent throughout the tedious work on my AC unit and fan motor. I have used Polar Bear for a number of years on all of my properties and would highly recommend them to anyone with heating or A/C repairs. They are fantastic!"

Serving Ashburn, VA and surrounding areas
Approved
In business since 1976
Free estimates
Emergency services offered
"Excellent service and quality work. Highly recommended."





+1

Serving Ashburn, VA and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"I have used Relax Air services twice in the past. On November 19th my water heater stopped producing hot water, I've called Nasser to come over to assess what needed to be done. On Monday Nov. 21st he replaced my old water heater (21 years old) Nasser is honest and very reliable. He is very reasonable with his pricing (I have compared Nasser's pricing to my next door neighbors water heater replacement cost). I would highly recommend Relax Air. A huge THANK YOU to Nasser...Relax Air is the ONLY company for my Heating And Air Conditioning needs!"





+12

Serving Ashburn, VA and surrounding areas
Approved
In business since 2012
Free estimates
Emergency services offered
"Very well. Technician, John, was patient and thorough as he cleaned and took readings of the systems. He took the time to walk me through the maintenance and care that I need to take care of the Heating and water heater systems of my newly acquired condo in Fairfax County Virginia."





+13

Serving Ashburn, VA and surrounding areas
Approved
In business since 1936
Free estimates
Emergency services offered
"Aside from installing a new Carrier gas furnace, they installed a state-of-the-art thermostat. The comfort specialist, Chris B., was very responsive and helpful in helping me decide what to buy, as well as providing help after installation. The two installers, Chris M. and Justin B. were very personable and very neat during removal and installation of the furnaces. Overall, very satisfied. Very commendable job."




Serving Ashburn, VA and surrounding areas
Approved
In business since 1994
Emergency services offered
Warranties offered
"I had been told by a repairman from a company I had a service contract with that my furnace badly needed a cleaning and was quoted a price of $600 for the job as well as an additional $400 to remove a nonworking humidifier. These quotes seemed exorbitant and so I got some estimates, all much lower, and chose Dominion on the basis of reviews. Terrone said my furnace did not need a cleaning, passing up an opportunity to charge me for something I thought I needed, and repaired my humidifier for less than the cost the other company had quoted for merely removing it. He showed me what he was doing, explained how my heating system worked, and charged me a fair price for the job. I would certainly call Dominion again for any HVAC needs."





+7

Serving Ashburn, VA and surrounding areas
Approved (Corporate)
In business since 1903
Emergency services offered
Warranties offered
"I was always called a "valued" customer by their people. No wonder, I finally got around to shopping for oil and found a local reputable heating oil supplier and service for slightly over $1 less per gallon! Service was fine but given what I now have I was paying far more for EQUAL service. This is a large conglomerate of bought up oil companies. Not even local to me."



From average costs to expert advice, get all the answers you need to get your job done.

HomeAdvisor’s Thermostat Replacement Cost Guide covers installation costs for mechanical, smart, and programmable thermostats.

Use this guide to budget for home solar battery costs based on factors such as system size, battery type, professional installation, storage, and more.

Check out how much a heated floor costs to install, exploring factors like the floor size, type, temperature zones, and heating system.

Budget for solar panel repair costs based on factors such as system type, panel size, accessibility, repair type, labor, parts, inspections, and more.

Wondering who repairs solar panels? Learn who to call—solar technicians, installers, or electricians—and when to DIY. See costs and smart next steps.

Curious who installs geothermal heating systems? Learn who to call, why a geothermal heating specialist is best, and other pro options.