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TRUSTED BY DUMFRIES, VA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon560
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Dumfries

Avatar for TC HVAC Services, LLC
TC HVAC Services, LLC
5.0(
20
)

Serving Dumfries, VA and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"T was great! We called him and within the hour he was at our house already. Provided us some options on how we can repair AC unit. Explained the problem and offer us multiple solutions. Not very pushy, very professional. Would highly recommend to other customer needing same type of service."
fully installation entire house duct with system
old outdoor
old outdoor
main trunk line the same house
old indoor

+99

Response time3 hrs
Recommended by100%of homeowners
Avatar for Conde Tech Services, LLC
Conde Tech Services, LLC
5.0(
206
)

Serving Dumfries, 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
Avatar for Magna Tech Temp Air, LLC
Magna Tech Temp Air, LLC
4.8(
166
)

Serving Dumfries, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Albert responded very quickly to my request for AC repair, diagnosed the problems quickly, and resolved both issues in the same visit. Will definitely be using him again for any HVAC problems."
New !6 Seer 3 Ton Air condition
B-Vent
New 80% Gas Furnace Instal
Ashburn Upgrade
Ashburn upgrade

+4

Response time3 hrs
7 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for McCrea Heating & Air Conditioning Services of VA
McCrea Heating & Air Conditioning Services of VA
4.6(
373
)

Serving Dumfries, VA and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"McCrea replaced a 20 year old HVAC system with a new Trane 4-ton XL16i condenser, XV80 furnace and new coils. The salesman, Mark, was very responsive to my request for quote changes or additional items, including financing options. He was very knowledgeable and patient through the entire process as I worked with other companies for competing quotes. As a result of Mark’s recommendations and excellent pricing, I added on a new Aprilaire 1210 filter box (including replacing a portion of the return duct work/box) and an Aprilaire 600M whole house humidifier. I was able to schedule install four days after signing the contract. The installers, Charles and Christian, arrived on time and removed the old and installed the new in about 7 hours. They provided an overview of system operation and cleaned up so well, you couldn’t tell that a significant installation had occurred. I would recommend McCrea, especially Mark, Charles, and Christian to anyone...they were professional and did an excellent job. My home is so much more comfortable with a system that will be better on the summer and winter utility bills."
Additional Photos
Trane Unit
Additional Photos
19 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Dominion Service Heat and Air
Dominion Service Heat and Air
4.1(
183
)

Serving Dumfries, VA and surrounding areas

Approved

In business since 1994

Emergency services offered

Warranties offered

"Dominion Services replaced my 30-year old HVAC system (the outside compressor, and the inside air handler) with a modern one having a 50% increased efficiency rating. The quality of their work is high (four friendly employees with more than 100+ years' combined experience were involved) and have good flexibility to adjust to my work schedule. They easily adapted the new system to the existing hook-ups, and were flexible in their selection among alternate, reliable replacement HVAC systems. The replacement cost was well within the range of the national average. I recommend contacting Dominion Services for insight into any HVAC issue."
Homeowner
new hvac install
A/c unit
furnace
heat pumps

+7

Response time3 hrs
46 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for SwiftPro Heating, Cooling & Plumbing
SwiftPro Heating, Cooling & Plumbing
4.8(
71
)

Serving Dumfries, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"I recently had SwiftPro conduct an inspection and assessment of my HVAC system, and am very satisfied with the service. Tyler and Moises were highly professional from start to finish, wearing boot covers to respect my home, and thoroughly explaining their findings. They were efficient, courteous, and took care to ensure everything was done to a high standard. I will likely be using them to replace my entire furnace and air conditioning unit. I highly recommend SwiftPro for anyone in need of trustworthy and quality HVAC services!"
Business HVAC
HVAC Replacement
HVAC Replacement
Customer's equipment
Look at details

+11

Response time4 hrs
Response rate99%
182 neighbors recently requested a quote
Avatar for JDL HVAC & Plumbing Services
JDL HVAC & Plumbing Services
4.5(
119
)

Serving Dumfries, VA and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Isak was on time, courteous, professional, and he explained to me exactly was he was doing. He made the installation a smooth process. I will be calling for my future hvac needs!"
Navien Tankless 2023
Navien Tankless 2023
Navien Tankless 2023
Navien Tankless 2023
18 SEER Infinity Heat Pump

+73

Response time5 hrs
18 neighbors recently requested a quote
Recommended by86%of homeowners
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Heating and Air Conditioning questions, answered by experts

Yes, ventless portable air conditioners exist, and not all standard portable air conditioners must be vented through a window.

Ventless portable units, often called evaporative coolers, do not have exhaust hoses. They use a water reservoir and a cooling pad to add moisture to the air, making it feel cooler. These units work best in dry climates because humid areas cannot absorb much additional moisture.

For standard portable air conditioners that do require venting, a window is not the only option; they can also be vented through a door, wall, or ceiling. However, it is essential to vent these units properly. Running a standard portable AC without venting it is counterproductive because it needs to expel heat to cool the room. Failing to do so will only increase the room's temperature.

No, you should not run an air conditioner with a Freon leak. If you think your AC unit is leaking refrigerant, shut it off immediately. When you keep using a leaky air conditioner, it could damage the unit and release more refrigerant. After turning off the AC, have an HVAC pro come take a look at the unit.

If refrigerant levels are low, it can cause the evaporator coil to freeze up. Low freon causes a drop in pressure, which will make the coil too cold and cause moisture to freeze on the coil. Your system may be low on refrigerant because of a leak

Make sure to have maintenance performed twice a year, and contact your local HVAC technician if you suspect your system has low freon levels.

A home AC unit provides anywhere from one-half to five tons of cooling and requires approximately two to four pounds of refrigerant per ton of cooling. At approximately five to 10 minutes to fill one pound of refrigerant, a home that requires three tons of cooling will take about six to 12 pounds of refrigerant and approximately 30 minutes to two hours to completely recharge the unit.

Yes, you can run an attic fan with the AC on. In fact, you don’t have a choice with a passive attic fan. Plus, when an attic fan draws out hot air from the attic, it helps regulate the temperature of your whole home, so your AC doesn't have to work as hard.

The Dumfries, 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.