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Best boiler installation pros near Gate City, VA

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    Verified boiler installation services reviews

Top-Rated Boiler installation pros in Gate City - Updated Nov 2026

Avatar for Covenant Air LLC
Covenant Air LLC
4.7(
27
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Gate City, VA and surrounding areas

In business since 2010

Credit card accepted

"Overall, we were very satisfied with the knowledge and quality of work that Covenant LLC provided. We had Covenant LLC install a radon mitigation system for our basement. Initially my husband and I met with David for the estimate and consultation. David spent the time to explain how radon can get into the basement, what the system would look like, and how he was going to make sure it was working. After meeting with David at Covenant, we met with a competitor who were definitely not as knowledgeable, were not going to seal any of the cracks or holes in the foundation or even follow industry standard by venting through the roof of the house. The day of install the crew was personable and professional and if they had any questions, they asked. The 3" pipe that Covenant had to install to run through a closet and into the attic. In order to do this, they had to drill through the porcelain title floors and run through 3 shelves. They spent extra time to jig-saw cut the shelves around the pipes and they took special care not to crack any of the porcelain tiles and when finished it looked like it was built with the house. After completion, Covenant came back and tested the radon levels which were reduced to below their guarantee, which itself is orders of magnitude below the EPA limit. We were probably not the easiest clients to work with as we had Covenant move the roof penetration several times until the noise was completely unnoticeable. David was always polite and professional and he wouldn't be satisfied with the job until we were satisfied. We highly recommend Covenant Air to anyone who is considering these services."
Closet
Fan Placement
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Recommended by88%of homeowners
Avatar for North Alabama Technical Services
North Alabama Technical Services
4.9(
124
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Gate City, VA and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"Jim did a great job. He quickly assessed the problem and then took our unit with him to work on it more. When he got back to us, the fix would have cost more than it was worth. He gave us options for a new or refurbished PC. We felt the refurbished was a good deal and chose that. He came back and set that up and we are very happy with it. He then took a look at my laptop and again took it along. He tuned it up and installed a speed upgrade we wanted. Of course, we paid extra for the new unit and upgrades, but we thought the price was very fair. Jim seemed very knowledgeable and responsive. We will definitely call him again if we need any computer services."
2014 Super Service Award Winner!
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Recommended by97%of homeowners
King's Child Construction
4.5(
46
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Gate City, VA and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"GREAT! had no idea what i was doing and the task at hand was way out of my realm. Casey went and explained what i needed, and why i needed it. Picked up the new part, gave him a call and he installed shortly after that. He was highly recommend to me and will most definitely will be giving him a call again! Great service, fast and honest."
Decks & Porches Project
Put all new wood down on 400 ft² deck and new railings, also added a 100 ft² addition to deck
Decks & Porches Project
Decks & Porches Project
Decks & Porches Project

+30

Recommended by95%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Gate City, VA and surrounding areas

In business since 1971

Credit card accepted

"AHS is ok. They cover repairs of most everything under the roof of your house. The companies that contract with them are not always the best. You call AHS with the issue, they send a fax to the repair company and give you the contact info. If they don't contact you within 24 hours, you call them. Sometimes they answer, sometimes they don't. When they arrive (usually three days or so later), they service the item. if it has issues within the 90 days, you call AHS again, they are sent out with no charge. If the serviceman decides the unit is unrepairable, AHS will allow you to choose a replacement from their listing (usually not as good as what you have) they will install and remove your old item, or give you wholesale amount to buy and install your own. Prices vary on what you want covered and what you want the copay to be, plus where you live. For me it is 49.99 per month with a 75.00 time of service order. You can have more than one item serviced at the same time under the same fee. If you have a SEAR product the repair guys are great. Not that wild about the other ones they send out. But it is a big savings compared to calling someone on your own. The cost of service is only the 75.00 copay."
Additional Photos
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+2

Recommended by65%of homeowners
Sears Heating and Cooling - Bristol
1.7(
8
)
Boiler or Radiator Heating System - Install or ReplaceGas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Gate City, VA and surrounding areas

In business since 1893

Free estimates

Warranties offered

Sears Home Improvement Products � Heating and Cooling \n \nSears can provide the right solution to your home improvement needs. We offer a full line of exclusive Kenmore� and Carrier� heating and cooling systems. Get the brands you trust from the name you recognize � Sears. Schedule your FREE In-Home Consultation today! \n

Recommended by100%of homeowners
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Install Boiler FAQs, answered by experts

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.

Common problems include leaks, low pressure, and inefficient heating. Regular maintenance prevents many issues.

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.

Installing a boiler requires training, a specific skill set, and extensive experience. Boiler installation can be extremely dangerous, as it involves working with water lines, gas lines, and electricity. For this reason, it’s strongly recommended that you hire a professional to install your boiler. Some states even consider it illegal to work on a boiler without the proper licensing.

An expansion tank must always be installed on the supply side, which is the side where the boiler sends water out to heat the systems. That placement allows the water to push against the air and condense properly as it is heated, then circulated through the system. Professional installers can recommend the best place on the supply side for an expansion tank.

The Gate City, VA homeowners’ guide to boiler installation services

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