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Best boiler installation pros near Bath, ME

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TRUSTED BY BATH, ME HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon315
    Verified boiler installation services reviews

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

Integrated Air Solutions
5.0(
8
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Bath, ME and surrounding areas

In business since 2013

Emergency services offered

"Jeff was very knowledgeable and professional, moved and repaired my propane boiler when another company did not. i had struggled with this boiler not working properly for several years and in one visit he knew what was wrong and repaired it."
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+1

Recommended by100%of homeowners
Avatar for Eastern Chimney
Eastern Chimney
4.1(
53
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Bath, ME and surrounding areas

In business since 2018

Emergency services offered

Credit card accepted

"Mark and his "right hand," Liz are a pleasure to deal with, they're like friends. I've had Mark's skilled and friendly crew clean the boiler chimney and repair the chimney cap. Mark's crew is clearly knowledgeable and works with care and artistry. Both projects reasonably priced compared to other contractors. I highly recommend Eastern Chimney."
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+3

Recommended by84%of homeowners
Avatar for Precision HVAC, LLC
Precision HVAC, LLC
5.0(
4
)
Gas Boiler or Radiator Heating System - Install

Serving Bath, ME and surrounding areas

In business since 2023

Credit card accepted

"Matt was amazing - so kind and professional. He fixed my boiler issues quickly and ensured that I was comfortable with everything before he left. 10/10 would recommend - I’ll definitely be using Matt again going forward!"
Response time3 hrs
Recommended by100%of homeowners
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Install Boiler FAQs, answered by experts

Coolant and antifreeze are technically not the same thing. The difference between the two is the ratio of water to other chemicals. True antifreeze is mainly made up of either ethylene glycol or propylene glycol, while coolant comprises one part antifreeze and one part water. However, the terms coolant and antifreeze are often used interchangeably, even by pros.

Always consult your manual for specific pressure numbers. Many expansion tanks come pre-pressurized at a specific PSI range, anywhere from 12 to 40 PSI, designed for a range of home boilers. You should not have to pressurize an expansion tank yourself, only the boiler system. If your system has a tank that needs to be manually pressurized, this is generally a job for professionals and their tools.

Yes, most municipalities require a permit for propane boiler installation to ensure safety and code compliance. Permit fees vary by location and are often included in your installer’s quote, as they’ll handle the permitting process. Ensure that you always check local regulations before starting your project to avoid fines or delays.

The cost of propane and related services varies depending on tank size and location but generally ranges from $500 to $2,500 for installation and initial fill.

To figure out if your boiler is worth repairing or if you need to replace your boiler, first figure out how old the unit is. Boilers last 15 to 20 years, so if your unit is 15 years old or older, it may be better to replace the entire thing depending on the severity of the problems. If it’s not quite that old, then it’s probably worth repairing. Another thing to consider is whether your warranty covers any of the repair costs. If so, it may be worthwhile to repair your boiler to keep it running.

The Bath, ME homeowners’ guide to boiler installation services

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