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Best boiler installation pros near Herculaneum, MO

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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon224
    Verified boiler installation services reviews

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

American Airtemp LLC
New to Angi
Gas Boiler or Radiator Heating System - Install - For Business

Serving Herculaneum, MO and surrounding areas

Approved

In business since 2008

Credit card accepted

Offers commercial services

American Airtemp LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. \n

Response time10 mins
Response rate100%
Avatar for Vitt Heating & Air Conditioning Co Inc
Vitt Heating & Air Conditioning Co Inc
4.7(
161
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Herculaneum, MO and surrounding areas

In business since 1954

Free estimates

Emergency services offered

"I would recommend this company to everyone. Loved they are a small local, family owned business. Our furnace-boiler went out on a Saturday, Monday morning they were out and a quote in the afternoon. They made sure we had heat before Thanksgiving day. Very professional, knowledgeable, great craftsmanship. Best price on comparable equipment out of 3 quotes. Thank you!!"
Military Discounts (retired & active)
Senior Citizen Discounts
Residential HVAC
Multifamily & Commercial Installation & Maintenance
Professionally Installed Ducts

+6

Response time3 days
Response rate100%
Recommended by91%of homeowners
Avatar for Energy Solutions of St Louis
Energy Solutions of St Louis
4.8(
17
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Herculaneum, MO and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"oven would shut off at high temps and door would lock. first visit reset controls to factory settings thinking power outages caused problem, service call fee only. Tried oven next day same problem as before. Called and they were out the next day. Diagnostics check revealed control panel was bad. Prepaid for order of new control panel. New panel was received and installed within 5 days with no additional service fees. Oven now works normal."
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James AC install

+6

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

Costs depend on unit size, labor, fuel type, and whether additional piping or venting is needed.

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.

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.

All modern boilers are condensing boilers because they’re the most efficient type. Instead of extra heat leaving through the flue, these boilers trap the heat and use it to heat the house. Whether you choose a combi boiler, system boiler, or regular boiler, you can opt to get a condensing system. If you have an old boiler that’s not a condensing boiler, it’s a good idea to get an upgrade.

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.

The Herculaneum, MO homeowners’ guide to boiler installation services

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