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Best boiler installation pros near Johnston, SC

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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon32
    Verified boiler installation services reviews

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

Avatar for CNT Foundations
CNT Foundations
4.5(
37
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Johnston, SC and surrounding areas

In business since 2003

Free estimates

Credit card accepted

CNT Foundations is the best foundation repair company in the industry. Locally owned and operated since 2010, we service commercial and residential foundation repairs, crawl space repairs, and New Construction projects in the Carolinas, Savannah and Augusta, Georgia. Call today for a free estimate and find out why CNT Foundations is #1.

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+270

Recommended by84%of homeowners
Bridges heating and air
5.0(
4
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Johnston, SC and surrounding areas

In business since 1985

Credit card accepted

"Arrive I day & time quoted, very professional and efficient. Completed job as stated. Owner was in contact day of installation and day after to make sure all was O. K. highly recommend this company!"
Recommended by100%of homeowners
Avatar for All Dry Of The Carolinas Inc
All Dry Of The Carolinas Inc
4.3(
48
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Johnston, SC and surrounding areas

In business since 1991

Free estimates

Credit card accepted

"All Dry of the Carolinas has provided a quote to do a french drain system around the front yard and replacing a sump pump that was installed by another company with one that is not a box store pump, but a super sump. They have also provided me with a warranty and clean outs will be installed in order to flush the system once a year. I have a quote for encapsulation as well. But that work will have to wait until I have a joist replaced."
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+4

Recommended by90%of homeowners
Avatar for Dedicated Air Care
Dedicated Air Care
4.7(
15
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Johnston, SC and surrounding areas

In business since 2019

Free estimates

Emergency services offered

Our company is a full-service heating contractor, and we established it with a strong focus on the best interest of our customers. With over 20 years of industry experience, we take pride in our courteous, highly-trained, and professional technicians who undergo continuous training and education to be able to work on all kinds of cooling and heating jobs. Our reputation for going above the expectations of our clients sets us apart from any other HVAC service provider in the area. Our team will arrive on time and will offer a detailed checklist after every maintenance job. In addition to being a full service HVAC contractor, we expanding our home service to include: electrical repair services, plumbing services, general home maintenance and lawn care services. Call us for a free estimate!

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Recommended by93%of homeowners
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Install Boiler FAQs, answered by experts

Costs depend on system size, efficiency rating, and additional features like zoning or smart controls.

You can use a boiler and a furnace, although it’s not common to use both for whole-house heating. For example, your furnace may take care of HVAC heating through your vents, while a boiler powers your floor-based radiant heating in the bathrooms. Mixing and matching like this gives homeowners a variety of heating possibilities.

Boilers provide even heating, energy efficiency, and a quiet operation compared to forced air systems.

Yes. Boilers need water to run without overheating, also known as dry firing. If you run it without a sufficient volume of water, either because of a burst pipe or a leak, you run the risk of damaging your machine or jeopardizing the safety of your home as a whole. When in doubt, shut off your boiler and repair any plumbing issues before turning it back on. Alternatively, consider installing a low-water cutoff (LWCO) before any issues arise. This gadget will protect your boiler by monitoring water levels and automatically shutting it off if it gets too low. 

It can take anywhere from four hours to three days to replace a boiler with a new one. How long your particular boiler installation takes will depend on whether you need a gas line installed and if you’re switching to a new boiler system. 

Replacing a combination boiler or standard boiler with the same system should only take four to six hours. Meanwhile, switching from a conventional boiler system to a combination boiler system could take a few days.

The Johnston, SC homeowners’ guide to boiler installation services

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