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TRUSTED BY GREAT FALLS, VA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon2.1k+
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Great Falls, VA

*The Angi rating for Heating And Air Conditioning Service companies in Great Falls, VA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Great Falls, VA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on May 04, 2026

Find Heating and air conditioning pros in Great Falls

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 Great Falls, VA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Excellent! Very prompt service, extremely easy to understand what he did and why, and so knowledgeable about many things! I will Relax Hvac again!"
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+12

Response time1 day
1 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Magna Tech Temp Air, LLC
Magna Tech Temp Air, LLC
4.8(
166
)
Central A/C - Service or RepairHeat Pump - Repair or ServiceThermostat - Repair or Reprogram+4 more

Serving Great Falls, 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
13 neighbors recently requested a quote
Recommended by94%of homeowners
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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 Great Falls, VA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"The technician was prompt, knowledgeable, and thorough. He did a great job cleaning and inspecting my gas fireplace, as well as the seasonal HVAC service. I would recommend this company."
Gas Fireplace Service
Gas Logs Maintenance
Heat Repair
AC Maintenance
Cleaned outdoor unit

+2

Response time10 hrs
Response rate92%
Recommended by99%of homeowners
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Avatar for ARS of Virginia
ARS of Virginia
4.4(
279
)
Central A/C - Service or RepairCentral A/C - InstallGas Furnace / Forced Air Heating System - Install+7 more

Serving Great Falls, VA and surrounding areas

Approved (Corporate)

In business since 1950

Free estimates

Emergency services offered

"My house to install HVAC is in Virginia Beach."
Install of a new A/C system.
434 neighbors recently requested a quote
Recommended by78%of homeowners
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Avatar for HVAC Superior Solutions Inc
HVAC Superior Solutions Inc
5.0(
6
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+47 more

Serving Great Falls, VA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"We are very happy with HVAC service. Compare to other companies they are much cheaper then others and provided quality work/services."
11 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for McCarthy Services
McCarthy Services
4.2(
370
)
Central A/C - Service or RepairCentral A/C - InstallHeat Pump - Install or Replace+6 more

Serving Great Falls, VA and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Credit card accepted

"Cozy Heating And Cooling is a local HVAC service contractor located right here in Woodbridge, VA. Since 2018, Cozy Heating And Cooling has provided dependable service and quality repair work in metro areas of DC, MD and VA. We specialize in satisfying all heating and air conditioning needs to ensure maximum comfort with the highest performance standards from employee training to customer care. All of our technicians are fully certified and trained to install and repair the latest HVAC equipment and technology."
Installing a new A/C system.
144 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for McCrea Heating & Air Conditioning Services of VA
McCrea Heating & Air Conditioning Services of VA
4.6(
373
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+21 more

Serving Great Falls, VA and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"Well. Very professional and helpful. They gave fairest quote for replacement of an old original HVAC unit. Likely going to hire."
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Trane Unit
Additional Photos
21 neighbors recently requested a quote
Recommended by91%of homeowners
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Consumer's Choice, Inc.
4.1(
68
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+35 more

Serving Great Falls, VA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Consumers Choice has been my go to hvac contractor for 8 years. Recently, I had a leak in the closed loop water source that feeds into my hvac. CC replaced hoses and valves and got cool air going again. I never call anyone else."
Recommended by96%of homeowners
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VS Heating and Air Conditioning, LLC
4.6(
109
)
Electric Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - RepairHeat Pump - Repair or Service

Serving Great Falls, VA and surrounding areas

Approved

In business since 2012

Free estimates

Customers say: Quick response

"I've been using a lot of technician and found this guy is the best and his price is great. I would recommend him (Van) to anyone who in need to get their HVAC service or repair. Give him a chance and you won't regret it."
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New Installed Trane
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+4

Recommended by94%of homeowners
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Avatar for BlueStar Air Mechanical Inc.
BlueStar Air Mechanical Inc.
4.9(
32
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+47 more

Serving Great Falls, VA and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"If you want honest, straight-forward, complete, and competitive pricing for a new HVAC system, go to Bluestar Air Mechanical. Our 21-year old systems needed replacement and we began our quotation/search process. Amongst the 7 companies we inquired with, Bluestar had the most comprehensive explanation, set of offerings, and was patient with us as we completed our comparisons. John promptly and completely answered all of my questions ranging from installation, future usage, efficiency, and advice on what was necessary vs an accessory. Lynn at the office was prompt and courteous on all of my scheduling, dispatch, and payment inquiries. You'll get top notch quality, service, and friendliness if you work with Bluestar for your HVAC replacement needs."
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+13

Response time3 hrs
Response rate100%
5 neighbors recently requested a quote
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Heating and Air Conditioning questions, answered by experts

The standard rule for return duct sizing is that the return vent should be the same size or larger than the supply vent. This will ensure balanced airflow in your home and reduce strain on your HVAC system.

Most units are designed only to cool the house down to 20 degrees less than the temperature outside. This means that if it’s 99 degrees Fahrenheit out and you’re trying to cool your home down to 65 degrees, you’ll notice your AC is struggling. 

Lower the blinds on all your windows, turn on your ceiling fans, and keep the thermostat at a consistent temperature to help your AC do its job. Investing in an HVAC maintenance plan also helps because pros will come out to inspect and tune up your unit regularly, keeping it in optimal working condition.

Window ACs use 500 to 1,400 watts per hour of electricity, while mini-splits use 500 to 700 watts per hour. However, if you need to cool multiple zones in your house, your mini-split can use as much as 2,000 watts per hour. How often you run your system will impact how much electricity you use (and how much you pay per month).

ACs don't run on water. They're not connected to drain pipes or any part of your plumbing system. However, they need refrigerant to run. Refrigerant is a gas or liquid that has a low boiling point and absorbs the heat in your home. ACs need this in order to be functional and cool your home. If you suspect your AC is low on refrigerant, you need to contact a licensed HVAC professional. Refrigerant is a dangerous chemical that requires specialized training and permits to work with. 

Aside from needing HVAC repair, there are times when you may need to replace your unit. HVAC replacement costs $5,000 to $12,500. Here are some telltale signs that your HVAC unit is going bad:

  • Your unit is 10 years or older.

  • Your home is very humid.

  • The unit keeps cycling without producing cool air.

  • You need to repair the unit frequently.

The Great Falls, 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.

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