4.6 
4.2k+ *The Angi rating for Boiler Installation companies in Ballwin, 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 Ballwin, 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 January 12, 2026
Serving Ballwin, MO and surrounding areas
Approved
In business since 2009
Warranties offered
Credit card accepted
"The plumber was very personal and we appreciated the service he provided. Thank you for hiring such a competent, knowledgeable employee."
+2
Serving Ballwin, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Emergency services offered
Warranties offered
"Remove electric water heater and install a new high efficiency gas water heater."
+10
Serving Ballwin, MO and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1979
Free estimates
Emergency services offered
"Anton’s Air Conditioning and Heating installed a tankless water heater. We are so happy to never run out of hot water. The installers were very professional. I highly recommend Anton’s!"
+18
Serving Ballwin, MO and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"I needed to replace my parents' 40 year old AC Condenser and coil, and replace it with something that worked with the new furnace my father got installed four years prior. They were able to do the work requested, and also offered to redo the furance installation as the previous company installed it right on the basement floor where any backup/water could possibly get into the system. They were very prompt and showed up on time/on schedule. They were very upfront about costs and pricing and there were no last-minute price changes or hidden fees, which I appreciate. Work was done well and they ensured that everything worked before leaving the job site. The gentlemen working were very professional and understanding. I highly recommend them for anyone looking to replace their HVAC or to correct work that was previously poorly done."
Serving Ballwin, MO and surrounding areas
Approved
In business since 2017
Free estimates
Credit card accepted
"Look no further for your plumbing needs! These guys are amazing! Steve and Greg were able to come out on the same day and were fun and professional. They explained things to me as the service to my water heater and new faucet installation were being done. Very helpful tips that I can use going forward. If you have been searching for a great company that is fast, efficient, knowledgeable, and very fair pricedâ ¦look no further! Call them today."
Serving Ballwin, MO and surrounding areas
Approved
In business since 1999
Free estimates
Emergency services offered
"Very professional, diagnosed the problem, came up with a timely solution, and installed it accurately."
Serving Ballwin, MO and surrounding areas
Approved
In business since 2020
Credit card accepted
Offers commercial services
"John and his helper did a great job replacing my water heater. They helped me do the exchange at Home Depot and installed the new heater very fast! Great quality work. Very reasonable price. Highly recommend"
Serving Ballwin, MO and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"I had a new furnace installed. Chuck and Andrew were both well trained and very nice. I would gladly have them work on my HVAC system any time."
Serving Ballwin, MO and surrounding areas
Approved
In business since 1985
Free estimates
Warranties offered
"Jacob thoroughly looked over everything; water lines, gas line, igniter, gas valve, connections, etc.. He took the time to make sure everything was working properly and even educated me on a few things I didn't know."
+7
Serving Ballwin, MO and surrounding areas
Approved
In business since 2006
Emergency services offered
Warranties offered
"Very professional and installed the gas line quickly. They also hooked up the new stove."
+3
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.
The average boiler installation cost depends on size, system type, and other factors. Keep reading to learn the cost of a new boiler.
Get the facts on propane boiler installation costs. Learn what impacts your price, compare options, and budget confidently for your home upgrade.
Installing a boiler DIY isn’t recommended without the proper skills and experience. Learn how to safely install a boiler in this guide.
When you need to heat your home, there are many options to consider. Weigh the pros and cons of a boiler vs. a furnace with this guide.
Boilers are a fast, efficient way to heat homes with radiant heat. If you’re interested in a new system, here’s how long it will take to set it up.
