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TRUSTED BY SAINT LOUIS, MO HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon1.5k+
    Verified boiler installation services reviews

Find Boiler installation pros in Saint Louis

Avatar for Hosack Plumbing Heating & Cooling
Hosack Plumbing Heating & Cooling
4.8(
345
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Saint Louis, MO and surrounding areas

Approved

In business since 2009

Warranties offered

Credit card accepted

"I want to thank Hosack Plumbing, and Kent, for getting my situation cleaned up quickly and professionally. My water heater install is perfect, my water pressure spot on thanks to the new PRV, and is ready for inspection. Kent was thorough, professional, and very clean. He noticed my mask when I answered the door and wore a kn95 mask the whole time. The life coaching advice was an added bonus. Kent's work was great and I'm very pleased with the service provided."
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+2

Response time8 hrs
8 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Fresh Air Heating & Cooling
Fresh Air Heating & Cooling
4.8(
277
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Saint Louis, MO and surrounding areas

Approved

In business since 1947

Free estimates

Emergency services offered

"This company was excellent all the way around. The staff member who contacted me was very nice and helpful. They were able to come out the same day (I did not have heat). They sent me a text message with a picture of the technician which I thought was an excellent feature. The technician, Jeff, was very nice and extremely knowledgeable. I would definitely hire them again because the work was top quality and the cost was fair and reasonable."
Fresh Air Van
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

11 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Rhymes Heating & Cooling
Rhymes Heating & Cooling
4.8(
193
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Saint Louis, MO and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"The salesman was knowledgeable and thorough. I did significant research and went with Carrier. I believe I received a fair price on excellent equipment. The installer arrived promptly at 7:00am as promised. He was cordial and clearly knew what he was doing. I was very happy with them and would recommend them."
Response time12 hrs
4 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for SmartHouse Heating & Cooling
SmartHouse Heating & Cooling
4.7(
593
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Saint Louis, MO and surrounding areas

Approved

In business since 1947

Free estimates

Emergency services offered

"Marc spent a good amount of time gathering information and explained everything in detail. He readily answered all of my questions and generated an in-depth report that made my decision pretty easy. His installation crew was very professional thorough and courteous. I’m very happy with my decision and the completed project."
Old boiler being removed
A Manual-J load calculation is performed to determine the precise amount of heating and cooling needed for each space.
Installing a Mitsubishi Hyper Heat Mini Split System to Heat and Cool this Sunroom Addition.
Mitsubishi outdoor unit installed on rooftop to heat and cool 3rd floor of this St. Louis City home.
Daikin FIT Heat Pump Installed in University City Home

+106

Response time2 days
2 neighbors recently requested a quote
Recommended by91%of homeowners
Perfect Air
4.7(
6
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Saint Louis, MO and surrounding areas

Approved

In business since 1982

Emergency services offered

Warranties offered

Founded in 1982. Team members that are drug tested and background checked insuring that the people in your home are safe. We specialize in repairing and replacing residential heating and air conditioning systems. "Fixed Right or It's Free"\nTechs available Sat & Sun call for appointment.

2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Arrow Mechanical
Arrow Mechanical
4.5(
61
)
Gas Boiler or Radiator Heating System - Install - For BusinessOil Boiler or Radiator Heating System - Install - For Business

Serving Saint Louis, MO and surrounding areas

Approved

In business since 2017

Emergency services offered

Warranties offered

"They install 2 3Tton A/C and 2 New Electric Furnaces. They were very professional in they're work ethic's. Quality work, they even pointed out mistakes on the original install of our old equipment. You would have to go a long ways to find a better team to do your work."
Commercial refrigerator
Geo thermal
New water pressure tank and electric water heater
New electric water heater
Response time6 hrs
Response rate85%
Recommended by96%of homeowners
Avatar for House Doctor's
House Doctor's
5.0(
3
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Saint Louis, MO and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Property maintenance is an essential yet often daunting task for homeowners and businesses. Finding the time or the right tools to carry out these tasks can be difficult and exhausting, leading to delays and frustration. At House Doctors of St Louis, we are here to alleviate these challenges, providing reliable solutions to all your maintenance and improvement needs efficiently and professionally.\n\nOur skilled handyman team excels in managing an extensive range of tasks for residential and commercial projects alike. We transform overwhelming to-do lists and stalled projects into completed tasks, ensuring a smooth process from start to finish. Whether it's quick repairs or major renovations, our technicians handle a variety of requests backed by free estimates to initiate the process, thus making your goals achievable.\n\n

Hvac Install
Hvac Install
Hvac Install
Hvac Install
Hvac Install

+1

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

Serving Saint Louis, 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%
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Install Boiler questions, answered by experts

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.

Depending on the size of your home and system, as well as any upgrades or add-ons you choose, it may take between three and five days to completely replace an existing HVAC system from start to finish. Your contractor should be able to give you an estimate before they begin the actual replacement.

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.

Probably not. Moving a boiler to a new location is a very different prospect from replacing it in the same spot, and significantly more expensive. Plus, boilers are typically carefully positioned in proximity to pipes and radiators when installed. Homeowners may want to move boilers to free up space, prevent freezing problems that have happened in winter, or solve a noise issue—but it’s a much more costly proposition.

If you have a closed-system boiler that requires an expansion tank, you cannot safely operate it without one, as this risks extensive damage or even explosions. You must find a way to make room for the installation. Options include repositioning the boiler, rerouting the boiler piping to a more open area, or performing minor remodeling to create the necessary space. If you are unsure whether your boiler needs an expansion tank or how to best accommodate one, it's recommended to have a local heating service professional assess the situation. They can confirm the requirement and suggest the most practical solution.

The Saint Louis, MO homeowners’ guide to boiler installation services

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