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Avatar for Relax HVAC, Inc.
Relax HVAC, Inc.
5.0(
32
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Sterling, VA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"My AC failed and I had limited time to find a good solution, I made a phone call to Relax HVAC based on the online reviews and it was a great decision. Nasser came to check the situation, he gave a very detailed and comprehensive overview of the situation and provided with the options I had. I decided to replace the unit, Nasser went above and beyond to find a unit delivery service but there was nothing available over the weekend so this gentleman went for unit pick up himself and finished the installation within a day from my initial call. Moreover, the provided price was very reasonable.I can't be more happy with the outcome and highly recommend Relax HVAC"
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+12

Response time1 day
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Conde Tech Services, LLC
Conde Tech Services, LLC
5.0(
206
)
Ductless Mini-split A/C - Install or Replace

Serving Sterling, VA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"I highly recommend investing in this company. Matt and Jaysun did a great job with repairs to my AC unit. I was servicing another company. My AC went down. I called the company to come fix it. They told me that I needed a new AC unit. Told me I had to pay almost 6k. So I went to home advisor and found Conde Tech. When they came to look at my AC unit they told me that it needed to be cleaned and that I didn’t need a new AC unit. They did a great job cleaning it and making it new. They saved me so much money. These are guys are honest and genuine. They focused on the job without disrupting my home. I appreciate this company so much. I fired the other company and told them I don’t need their services anymore. From now on if I need any heating or cooling fix, I call Conde Tech services."
Gas Fireplace Service
Gas Logs Maintenance
Heat Repair
AC Maintenance
Cleaned outdoor unit

+2

Response time10 hrs
Response rate92%
Recommended by99%of homeowners
Avatar for Polar Bear Air Conditioning And Heating Inc
Polar Bear Air Conditioning And Heating Inc
4.4(
237
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+3 more

Serving Sterling, VA and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"They installed a new boiler and central air conditioning in my DC rowhome and did a fantastic job. Joe answered all of my questions and they stayed on schedule with the project which was great because it was a larger project. I would highly recommend their services for the quality of workmanship and their prices were very reasonable as well. I will contact them again for future HVAC work in the DC area."
Response time1 day
21 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for BlueStar Air Mechanical Inc.
BlueStar Air Mechanical Inc.
4.9(
32
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Sterling, VA and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"I contacted Bluestar Air Mechanical for a second opinion after an appointment with Air One. I have a Carrier HVAC system, and the Air One technician recommended a complete system replacement, claiming the blower was bad, the furnace control board needed replacing, and that there were other issues. Since replacing the HVAC is a big investment, I wanted to get a second opinion. It was only after comparing the service from Bluestar that I realized Air One may have been pushing for a new system sale or lacked the expertise to properly diagnose and repair the actual problems. Isaac, the technician from Bluestar, spent about an hour thoroughly diagnosing and fixing the issues. He found burnt wiring in the furnace and discovered that the wrong capacitor had been incorrectly installed in the AC. Isaac replaced the burnt wiring in the furnace and the capacitor in the AC. After these repairs, my Carrier system was back up and running—without the need for a costly replacement. Bluestar, and Isaac in particular, demonstrated professionalism, expertise, and honesty. They focused on resolving the actual issues instead of pushing for an unnecessary system replacement. I highly recommend Bluestar for their reliable service and Isaac’s thorough and knowledgeable work."
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+13

Response time3 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for McCrea Heating & Air Conditioning Services of VA
McCrea Heating & Air Conditioning Services of VA
4.6(
373
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+2 more

Serving Sterling, VA and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"Overall McCrea did a good job with my Sept 23, 2019, HVAC installation. The POSITIVES significantly outweigh the negatives: · They had the best price out of 6 proposals. · They agreed to add an additional HVAC return to the basement free of charge ($250). · They leveled my second old existing heat pump without asking...free of charge…I really liked that. · They told me that Fairfax county does a free inspection upon request. I’ve never had an installer tell me this…it is not in their interest to do so. The county inspection was primarily electrical but it was good to have even that independently reviewed. · They responded within 2 hours after I called about an installation problem. It turned out a condensate PVC pipe was installed wrong and tripped a cutoff switch. Everyone makes mistakes. I give them credit on this one because they responded quickly and repaired it quickly. · I requested a Trane and NATE certified installer and McCrea sent out Greg Dworchak who, along with 2 others did an excellent job. They were competent and friendly and answered all my questions very well. One NEGATIVE: · I liked the first sales person (Kris Kimmmel) who gave the initial proposal...very professional and friendly. My only concern was that he went on vacation and the follow up was slow. He did tell me he would be on vacation with limited email access. I emailed my intention to move forward on the proposal by the required date but the response was too late to get the significant Trane rebate. Weeks later I received a call from another representative (Chris Aiani) and he provided an acceptable proposal although it was a lower SEER unit (XR14) instead of the XR16i I originally wanted. Chris apologized to me about this and said they were re-organizing to provide more sales support and that this should not happen again."
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Trane Unit
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17 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Magna Tech Temp Air, LLC
Magna Tech Temp Air, LLC
4.8(
166
)
Central A/C - Service or Repair

Serving Sterling, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"I had an extremely positive experience with Magna Tech Temp Air. Albert set up an appointment immediately, arrived promptly, quickly diagnosed the issue with my air conditioner, and had it working in under 2 hours. The price was very reasonable, and he never tried to sell me anything extra. He was honest, genuinely friendly, and professional. I cannot recommend them highly enough."
New !6 Seer 3 Ton Air condition
B-Vent
New 80% Gas Furnace Instal
Ashburn Upgrade
Ashburn upgrade

+4

Response time3 hrs
18 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for McCrea Heating & Air Conditioning Services of MD
McCrea Heating & Air Conditioning Services of MD
4.5(
318
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+2 more

Serving Sterling, VA and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"They did a great job, it is part of a warranty that I have with them. When this condo, they were the HVAC that put the air conditioning, ducts and all of that in this building, they were the ones. They have this wide window where you have got to stay in your place from 8 to 12 or 12 to 5. They did a nice job."
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10 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for McCarthy Services
McCarthy Services
4.2(
370
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Sterling, VA and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Credit card accepted

"They really helped out in a serious bind! Great customer service and install. You wouldn’t even know they had been in our home to install a new furnace and air conditioning units. Highly recommend!"
Installing a new A/C system.
224 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for SwiftPro Heating, Cooling & Plumbing
SwiftPro Heating, Cooling & Plumbing
4.6(
117
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Sterling, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"We had a great experience when SwiftPro completed a dryer duct cleaning and a bathroom fan replacement at our home! They were on time, professional, and friendly. Moises also threw in a much-needed bird cover for our dryer vent to help prevent future issues. We highly recommend Tyler, Moises and the SwiftPro team for all of your HVAC and plumbing needs!"
Business HVAC
HVAC Replacement
HVAC Replacement
Customer's equipment
Look at details

+11

Response time4 hrs
Response rate100%
44 neighbors recently requested a quote
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Air Conditioning questions, answered by experts

For the most part, you should leave your AC fan in “auto” mode so that it only runs during a heating or cooling cycle. Keeping it in this position uses less energy, which equals lower utility bills. However, there are some situations where it’s better to leave your AC fan on, including if you have allergies or there are lots of people in your home.

There are a few things you can do to make your AC repair technician’s job easier and your home more comfortable while you wait for AC repair:

  • Cut back trees, shrubs, and weeds around the outdoor compressor 

  • Clear a pathway inside and outside to your AC components

  • Set up a ladder for attic access if necessary

  • Pull your window AC out of the window and place in an easily accessible spot

  • Supplement with fans and open windows to help keep your house comfortable

An AC drip pan may stop draining if there’s a clog where the drip pan connects to the drain line. Clogs can form from a lack of cleaning or from rust or corrosion buildup. Cleaning the drip pan at least once per month lowers the chances of debris clogging the drain line.

If you’re looking for a portable, budget-friendly cooling solution that doesn’t require any venting or installation, a ventless AC system is a good option. Similarly, this is a great choice if you’re renting an apartment or home and aren’t allowed to make large, structural changes like installing comprehensive HVAC, or you’re in a shared space and only need to cool your own room.

Yes, the furnace and AC use the same blower. The blower is located in the base of the furnace and pushes hot air out of the furnace and into the ducts. It also pushes cool air through the home when the air conditioning is on. Even though the furnace and air conditioning work independently of one another, the blower is an essential component for both systems.

The Sterling, VA homeowners’ guide to air conditioning services

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