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TRUSTED BY HERNDON, VA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon2.3k+
    Verified heating and air conditioning services reviews

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

*The Angi rating for Heating And Air Conditioning Service companies in Herndon, 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 Herndon, 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 21, 2024

Find Heating and air conditioning pros in Herndon

Avatar for Relax HVAC, Inc.
Relax HVAC, Inc.
5.0(
32
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+21 more

Serving Herndon, 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"
Additional Photos
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+12

Response time1 day
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 Herndon, 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
11 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 Herndon, 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 Air Quality HVAC, LLC
Air Quality HVAC, LLC
4.8(
102
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - Repair+1 more

Serving Herndon, VA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Best service, best price, on time, explain how to maintain hvac system, Definitely use their service in future"
2 ton a/c
gas furnace with coil
air handler
air handler
coil with new duct

+3

Recommended by96%of homeowners
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Avatar for Polar Bear Air Conditioning And Heating Inc
Polar Bear Air Conditioning And Heating Inc
4.4(
237
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+47 more

Serving Herndon, VA and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"I cannot recommend Polar Bear HVAC more highly. They offered the most affordable quote of the pros that Angi recommended and they are a family-owned business with super kind and knowledgable staff. Additionally, they were able to work with me on a great financing deal for my new HVAC and got the job done in a day and a half. Would definitely go with them again."
Response time1 day
24 neighbors recently requested a quote
Recommended by88%of homeowners
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Avatar for HVAC Superior Solutions Inc
HVAC Superior Solutions Inc
5.0(
6
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceElectric Furnace / Forced Air Heating System - Install+47 more

Serving Herndon, VA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"I HIGHLY RECOMMEND HVAC Superior Solutions Inc!! They came over to diagnose my AC problem on very short notice. I decided to get a whole new system and they took great care in all the details and worked overtime to get the job completed. I am very satisfied with the new system and with the great customer service."
12 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for ARS of Virginia
ARS of Virginia
4.4(
277
)
Central A/C - Service or RepairCentral A/C - InstallHeat Pump - Install or Replace+7 more

Serving Herndon, 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.
329 neighbors recently requested a quote
Recommended by79%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 Herndon, VA and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Credit card accepted

"Good pricing and quick service. We used them for an HVAC unit in our former home last year and just called them back to install a unit in our new home."
Installing a new A/C system.
472 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 Herndon, 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
16 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for OHA HVAC, Plumbing, Chimney & Fireplaces
OHA HVAC, Plumbing, Chimney & Fireplaces
4.8(
25
)
Electric Furnace / Forced Air Heating System - InstallCentral A/C - InstallGas Furnace / Forced Air Heating System - Repair+19 more

Serving Herndon, VA and surrounding areas

Approved

Super Service Award Winner

In business since 1995

Free estimates

Emergency services offered

".Excellent response and service.  Good, comprehensive advice on our home heating needs.  Service tech came the next day and did the work quickly and professionally.  Excellent price break for new customer.  I would highly recommend this company."
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%
7 neighbors recently requested a quote
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Heating and Air Conditioning questions, answered by experts

Not if you have a standard unit. Because portable AC units actually work to dehumidify the room, you’ll likely need to drain the unit from time to time—but you won’t have to put water into it. There is, however, another type of air conditioner called a swamp cooler that requires water to operate. If you have a swamp cooler, you may need to fill a reservoir with water and potentially ice. But a swamp cooler is different from a standard portable AC unit.

Yes. It's normal for the AC compressor to cycle on and off intermittently in dry mode as it maintains the desired humidity level. The compressor cycles to prevent over-dehumidification and to maintain a comfortable indoor environment. This cycling behavior ensures efficient operation and optimal humidity control, contributing to the overall effectiveness of the dry mode function in your AC system.

Yes, a dirty evaporator coil can freeze up. Dirty evaporator coils can’t absorb or transfer heat properly. The dirt and grime restrict airflow, which is needed to move heat throughout the system properly. Your air conditioning unit could freeze over, or it can cause your heat pump to freeze.

If your home has an existing forced-air heat system, you can add a central air conditioner to it. An HVAC technician can retrofit your forced-air heating system by installing an evaporator coil onto the furnace plenum, the box next to the furnace that draws in air. Once installed, the air conditioning coils use the furnace’s blower to circulate the air.

Most HVAC companies recommend against setting your AC below 70 as it could freeze up the system and cause more problems. Regardless of how hot it is outside, there is generally a 20 degree difference between the outside and inside temperatures, so even if it’s 100 degrees outside, your AC will likely not be able to cool your home to 70 degrees.

The Herndon, 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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