4.5 
1.5k+ *The Angi rating for Boiler Installation companies in Saint Louis, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.
*The HomeAdvisor rating for Boiler Installation companies in Saint Louis, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.
Last update on June 21, 2026
Serving Saint Louis, MO and surrounding areas
Approved
In business since 1947
Free estimates
Emergency services offered
"Easy work. Got the clog cleared and it was good to go."
+2
Serving Saint Louis, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Emergency services offered
Warranties offered
"Installed a new gas water heater. Was very knowledgeable and got it done. Great job, thank you Sam."
+10
Serving Saint Louis, MO and surrounding areas
Approved
In business since 1993
Free estimates
Emergency services offered
"Extremely fast replacement heating and cooling installation. Exceptionally nice people. Zero problems after the installation of 2 Furnaces and 2 Air Conditioners in our zoned HVAC home."
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."
+106
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.
Serving Saint Louis, MO and surrounding areas
Approved
In business since 2017
Emergency services offered
Warranties offered
"Prompt, Polite & Professional. Job well done and I'll remember this the next time I need some help. Thank you!"
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
+1
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
Serving Saint Louis, MO and surrounding areas
Approved
Hello, my name is James. I perform many handyman/repair services. I won’t charge near as much as large commercial businesses, and promise to be transparent and honest with my work. I’m positive if I can’t help you with your problem then I could point you in the right direction to help get your issue resolved asap quick as possible.
Serving Saint Louis, MO and surrounding areas
Approved
Emergency services offered
Warranties offered
Small jobs welcome
Hello my name is Anthony, I am a licensed master plumber with over 20 years in the trade.\nLicensed, bonded and insured. \nI am a second generation master plumber and love to help people in there time of need. We offer very fair pricing and extremely professional service. \nWe are a family owned an operated company out of wentzville MO.\nWe would love to take care of your pmumbing needs. \n
From average costs to expert advice, get all the answers you need to get your job done.
The average boiler installation cost depends on size, system type, and other factors. Keep reading to learn the cost of a new boiler in St. Louis, MO.
Find out the average radiator and boiler repair cost in St. Louis, MO. Learn what you can expect to pay for local heating services and keep your home warm.
HVAC replacement costs in St Louis, MO, depend on a lot of factors, like unit type, size, and labor. See what you can expect to pay for HVAC replacement here.
Looking for a qualified boiler installation pro? Learn how to find and hire the right professional, from credentials to questions to ask.
Is your heating system failing or leaking? Learn about radiator and boiler installation costs, warning signs, and how to hire the right local pro.
Installing a boiler requires care and precaution. Use this checklist to install a boiler safely.
