Top-rated boiler installation pros.

Best boiler installation pros near Fairfax, VA

Enter your zip and get matched with up to 5 pros

TRUSTED BY FAIRFAX, VA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon4.7k+
    Verified boiler installation services reviews

Top-Rated Boiler installation pros in Fairfax - Updated Nov 2026

Avatar for Appleton Campbell
Appleton Campbell
4.6(
339
)
Boiler or Radiator Heating System - Install or ReplaceGas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Fairfax, VA and surrounding areas

Approved

In business since 1976

Free estimates

Emergency services offered

"The technicians were friendly and knowledgeable. The end product was excellent. The office was professional (mostly). The price seemed fair, but I would venture a guess that I could find cheaper, but I wanted a quality installation. I can confirm I found competition that was much more expensive. The only issue I had was scheduling both the quote and the work. In this case we needed both an electrician and plumbers complicating the situation. We scheduled both disciplines to quote on the same day. The electrician missed the window and had to come the next day. For the work to be performed, we again scheduled for a single day process but due to illness apparently had to reschedule for the following day. At that point, I complained to the office due to the inconvenience of taking 4 days out of the office for a 2 day job, looking for a little price reduction. The office manager I spoke to was more interested in defending their position than seeing my side. In the end he granted me a $50 online coupon, reduction yes, but I'm not sure why I wouldn't have been entitled to that regardless. Honestly, in the end I was happy and would hire again due to the quality of work, reasonable price and professionalism in general. They would have received high marks across the board if it wasn't for the scheduling issues. I hope that was just bad coincidence."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

Response time11 hrs
Response rate100%
8 neighbors recently requested a quote
Avatar for BlueStar Air Mechanical Inc.
BlueStar Air Mechanical Inc.
4.9(
32
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Fairfax, 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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Response time3 hrs
Response rate100%
5 neighbors recently requested a quote
Avatar for Relax HVAC, Inc.
Relax HVAC, Inc.
5.0(
32
)
Boiler or Radiator Heating System - Install or Replace

Serving Fairfax, 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
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+12

Response time1 day
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for TC HVAC Services, LLC
TC HVAC Services, LLC
5.0(
20
)
Gas Boiler or Radiator Heating System - Install

Serving Fairfax, VA and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"September 2019, my water heater broke and TC HVAC Services replaced it with a new water heater. And they also fixed my AC and fridge. Recently, in October 2019, TC HVAC Services installed a new humidifier in my home. Mr. Thea Chea, the specialist was professional, honest, and he answered all of my questions. The repairs and installation were completed in a timely manner. And costs were reasonable and fair. I would definitely use TC HVAC Services again and I have recommended TC HVAC Services to my family and friends. Thank you, Mr. Chea and TC HVAC Services LLC."
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 BRIGGS HEATING & COOLING
BRIGGS HEATING & COOLING
4.5(
15
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Fairfax, VA and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"Briggs Heating and Cooling has been our go to provider since we renovated our home in 2005. They are experienced, supremely responsive and personable professionals who truly care about their customers. They go out of their way to get it right. We have trusted them so much that we introduced them to my elderly parents’ home years ago. My parents have adopted them ever since. We have had several projects this year alone, some routine maintenance, some much more complicated. Each project was handled the same way. First, my parents have an old AC and “Trevor’s guys” come out every year to service it. Their gas heater required a new switch which, because it was an old unit, took a lot of effort to find and replace. Next, our newer AC had a valve malfunction, and Briggs’ went way out of their way to properly diagnose the problem. As a precaution, we received a second opinion. Not only did Briggs’ diagnose the problem properly, they fixed it at about a quarter of the cost that the other service provider would have charged. Most recently, a couple of weeks ago, a leak was detected in my parents’ newly installed gas fireplace logs which Briggs had not installed. They met me at my parents’s home within an hour and had it repaired in another hour. And their prices are always extremely reasonable. This is small business done right. In northern Virginia, they are a breath of fresh air."
Response time10 hrs
Response rate100%
1 neighbors recently requested a quote
...
Showing 1-10 of 239
Install Boiler FAQs, answered by experts

If your boiler is 20 years old, it’s time to get a new one. Although it may seem to be working fine, it’s likely eating up more fuel than it should. Also, compared to a brand-new boiler, one that’s 20 years old is probably not working as well. When you get your new unit, you’ll notice that your home is heating more quickly, and the heat is consistent throughout all the rooms.

No, there isn’t always water in radiators. In a one-pipe system, water is constantly circulating from the boiler to the radiators and back. In a two-pipe system, water travels through two separate channels: one that goes to your radiators and one that returns back to the boiler so it can heat up again.

The radiators closest in proximity to the boiler heating system will heat up first. Radiators in rooms farther away from the boiler will take longer to heat up and may be the coolest rooms in the house. The radiator unit itself should heat up evenly; otherwise, there may be trapped air inside it.

If you're often struggling with radiator issues like chilly spots, leaks, or annoying noises, those are common indications that your radiator may need to be replaced. Corrosion, uneven heating, and persistent hissing sounds are common issues as well. When repairs become a regular chore and your home’s energy bills start to rise, a new radiator will bring the comfort and savings you need.

The absence of heating or hot water, unusual noises like banging or gurgling, and visible water leakage are key signs. Abnormal boiler pressure, flame irregularities (for gas boilers), or pilot light issues may also signal trouble. Frequent cycling, soot or staining, and unusual odors, particularly gas-like smells, should not be ignored. Modern boilers often display error codes or lockout mode upon detecting issues. Uneven heating across radiators and rising energy bills without increased usage can further point to problems. Prompt attention to these signs is essential to prevent further damage and ensure safety.

The Fairfax, VA homeowners’ guide to boiler installation services

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