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TRUSTED BY ANNANDALE, VA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.7k+
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Annandale

Avatar for Relax HVAC, Inc.
Relax HVAC, Inc.
5.0(
32
)
Central A/C - Service or RepairBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+21 more

Serving Annandale, 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 Magna Tech Temp Air, LLC
Magna Tech Temp Air, LLC
4.8(
166
)
Central A/C - Service or RepairHeat Pump - Repair or ServiceElectric Boiler or Radiator Heating System - Repair+4 more

Serving Annandale, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"So happy I worked with Magna for my issue! They came within 45 minutes of me posting on Angie's List... that has to be some kind of record. They diagnosed the issue quickly, clearly communicated what was needed and what the cost would be, and I moved forward with it. My AC was back up and running within an hour. Highly recommend! I've saved Magna Tech's phone number in my contacts and they will be the first company I call every time I have an HVAC issue."
New !6 Seer 3 Ton Air condition
B-Vent
New 80% Gas Furnace Instal
Ashburn Upgrade
Ashburn upgrade

+4

Response time3 hrs
12 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Conde Tech Services, LLC
Conde Tech Services, LLC
5.0(
206
)
Ductless Mini-split A/C - Install or ReplaceGas Boiler or Radiator Heating System - RepairGas Boiler or Radiator Heating System - Repair - For Business+3 more

Serving Annandale, VA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Great company. I am very pleased with the installation of the replacement gas furnace, digital WiFi thermostat, filter system, and water safety package with drain pan. The technicians, office personnel and owner were very knowledgeable. Very courteous, answered questions I had on the new furnace by Amana. Also very pleased with the maintenance of the other HVAC system installed at my house. Will recommend them to my friends."
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 OHA HVAC, Plumbing, Chimney & Fireplaces
OHA HVAC, Plumbing, Chimney & Fireplaces
4.9(
27
)
Electric Furnace / Forced Air Heating System - InstallCentral A/C - InstallCentral A/C - Service or Repair+19 more

Serving Annandale, VA and surrounding areas

Approved

Super Service Award Winner

In business since 1995

Free estimates

Emergency services offered

"I am so happy with my AC working like it is brand new! I so appreciate Matthew Thomas for finding the problem and getting the job done! His polite conversation and knowledge of the problem made me feel comfortable asking him questions, and his answers were in language I could understand🤣 Thank you OHA, Gail & Mick"
AC Maintenance / Tune-Up
AC Maintenance / Tune-Up
AC Maintenance / Tune-Up
AC Maintenance / Tune-Up
AC Maintenance / Tune-Up

+3

Response time1 day
Response rate100%
9 neighbors recently requested a quote
Avatar for R.H.S. HVAC Services
R.H.S. HVAC Services
5.0(
6
)
Air Ducts & Vents - CleanThermostat - Repair or Reprogram

Serving Annandale, VA and surrounding areas

Approved

In business since 2017

Emergency services offered

Warranties offered

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Bathroom Remodel
Bathroom Remodel
Bathroom Remodel
Bathroom Remodel
Bathroom Remodel

+4

Response time1 day
Response rate100%
Recommended by100%of homeowners
Virginia Heating and Air, LLC
4.4(
327
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairElectric Furnace / Forced Air Heating System - Repair - For Business+4 more

Serving Annandale, VA and surrounding areas

Approved

In business since 2006

Credit card accepted

Offers commercial services

"Virginia Heating and Air responded to my request for HVAC repair immediately and they arrived the next morning during the scheduled one hour window. Mark and Steve were great, they listened and were able to quickly doagnose and repair my cooling system issues, all the while educating me on how my system operated and how to keep it running efficiently. They did a full system inspection, a chemical cleaning of my outside unit, replaced a failed capacitor, recharged the freeon, and adjusted dampers for maximum efficiency. Price seemed fair for the work completed, which was completed in two hours."
Response time4 hrs
Response rate98%
Recommended by94%of homeowners
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Heating and 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.

Yes, high-efficiency models reduce environmental impact with lower energy use.

Whether an HVAC damper should be open or closed depends on the season, the zone it controls, and the temperature in that zone. In the summer, open upstairs dampers and close lower-level dampers to get the most efficient cooling possible. In the winter, do the opposite. Cool air will naturally flow down to lower levels, while warm air will rise. This keeps your system from working harder and helps prevent common AC problems.

Yes, technicians check refrigerant levels, loop performance, and system calibration for peak efficiency.

You can buy a house with a 15-year-old HVAC system if you inspect the system for performance and budget for a replacement within the next three years. You can also negotiate the price with the sellers. Ask to look at the unit’s maintenance records and energy bills for the last two years to determine the shape of the HVAC system and its operating costs. Spend time in each room of the house to gauge if the HVAC keeps the home at a consistent temperature throughout.

The Annandale, VA homeowners’ guide to heating and air conditioning services

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