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TRUSTED BY COTTLEVILLE, MO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon5.4k+
    Verified boiler installation services reviews

Verified Reviews for Boiler Installation pros in Cottleville, MO

*The Angi rating for Boiler Installation companies in Cottleville, 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 Cottleville, 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

Find Boiler installation pros in Cottleville

Avatar for Hosack Plumbing Heating & Cooling
Hosack Plumbing Heating & Cooling
4.8(
344
)

Serving Cottleville, MO and surrounding areas

Approved

In business since 2009

Warranties offered

Credit card accepted

"It started off bad because I had the water heater installed, submitted my paperwork for my rebate for the installation and then my rebate ended up not getting honored because the water heater that was installed didn't qualify for Spire's rebate. Turn's out that the water heater that would fit my location as well as satisfy Spire's rebate, I would have had to wait 5 to 6 weeks for that specific water heater so, the owner of Hosack's Plumbing cut me a check for the amount of the rebate and the amount over time that the new water heater would have saved me. Not the perfect situation but, that was a win win for me as well as Hosack's Plumbing because a good water heater was installed just not one that would quite fit the Spire requirements for the rebate! Hence we didn't need to take a brand new water heater out and replace it with another water heater that was just .05 UEF Higher!"
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+2

Response time6 days
8 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Liberty Heating & Cooling
Liberty Heating & Cooling
4.8(
46
)

Serving Cottleville, 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."
A/C replacement
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+10

6 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Anton's Plumbing, Heating/Cooling & Energy Experts
Anton's Plumbing, Heating/Cooling & Energy Experts
4.7(
513
)

Serving Cottleville, MO and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1979

Free estimates

Emergency services offered

"we had new gas-fired furnace and air conditioning system installed"
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+18

Response time1 day
Response rate86%
17 neighbors recently requested a quote
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Avatar for Dunn Plumbing, Heating and Air Conditioning / Dunn One Hour Heating and Air Cond
Dunn Plumbing, Heating and Air Conditioning / Dunn One Hour Heating and Air Cond
4.7(
273
)

Serving Cottleville, MO and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"The installation went well. The team was professional and worked tirelessly to finish the job by end of the day."
Additional Photos
Response time2 days
23 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for Super Handy Man, LLC
Super Handy Man, LLC
4.9(
127
)

Serving Cottleville, 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."
Response time5 hrs
Response rate87%
29 neighbors recently requested a quote
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Shelton Plumbing, LLC
5.0(
20
)

Serving Cottleville, MO and surrounding areas

Approved

In business since 2020

Credit card accepted

Offers commercial services

"John did a great job on our WH installation. We needed a larger unit, 75 gal, and he handled the job with professionalism. He always responded with communications and was courteous. Had a couple of things needing follow-up on the job but he stuck with it and kept me in the loop. Would highly recommend."
Response time7 hrs
2 neighbors recently requested a quote
Recommended by82%of homeowners
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Avatar for MAPLEWOOD PLUMBING
MAPLEWOOD PLUMBING
4.8(
337
)

Serving Cottleville, MO and surrounding areas

Approved

In business since 1985

Free estimates

Warranties offered

"I purchased an electric tankless and pre-filter/softener directly from the manufacturer and started hunting for a plumber to install it. Now most all plumbers recommended against a tankless hot water heater, and Maplewood wasn't really any different in this regard. BUT, they listened to us, didn't treat us like idiots, and obliged us in our foolishness and they were really awesome. They did the job quickly and without a mess. Also, WE LOVE OUR NEW TANKLESS HOT WATER HEATER! I looked at our electric bill after 2 months (March-April) of using our Stiebel-Eltron E-tankless whole-house water heater unit, and the kW usage actually DECREASED from one year ago for those same two months. That’s right, there was no increase in our electric bill. As expected, our gas usage decreased. My wife was very worried because she often ended up talking to the plumber issuing the dire warnings and predictions about our silly misguided endeavor to get a tankless unit. Now, she couldn’t be happier. Tandem back-to-back showers all day long, if we wanted. Never ending hot water! Thank you Maplewood Plumbing for helping us!"
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+7

3 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for SC Hosack Plumbing & Excavating
SC Hosack Plumbing & Excavating
4.8(
104
)

Serving Cottleville, MO and surrounding areas

Approved

In business since 2006

Emergency services offered

Warranties offered

"They installed a new water heater for us. They were very efficient. Did not leave a mess. And we have been very happy with the water heater that we bought from them."
30% tax credit
Vanity Bowl
Steam Shower
Kitchen
Go Green

+3

8 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Anton's Plumbing, Heating/Cooling Energy Experts
Anton's Plumbing, Heating/Cooling Energy Experts
4.6(
81
)

Serving Cottleville, MO and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Ken was very friendly and professional. His workers who installed the furnace were fast and efficient. The price was reasonable for a good quality furnace with exceptional warranties."
Response time6 hrs
Recommended by95%of homeowners
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Avatar for Ambassador Plumbing L.L.C
Ambassador Plumbing L.L.C
5.0(
36
)

Serving Cottleville, MO and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Awesome. Showed up on time. Courteous. Clean. Of the several company reps that I spoke with Austine Ambassador Plumbing) gave me the most confidence. I will definitely work with them again!"
Response time1 day
Response rate99%
2 neighbors recently requested a quote
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Install Boiler questions, answered by experts

Warmed or cooled air can escape your home through drafty windows and doors. If you notice any gaps, be sure to caulk and seal them. You can also hire a local pro for an energy audit to get a list of energy-saving recommendations. 

Finally, check your insulation. It can settle in over time and become less effective. The Environmental Protection Agency (EPA) estimates that you can save an average of 15% on heating and cooling costs (or 11% of total energy costs) by sealing leaks and making sure attics, crawl spaces, and basements have a nice layer of insulation.

You can save money on heating oil through a combination of improving home efficiency and smart purchasing strategies.

Home Efficiency and Usage:

  • Improve Insulation: Ensure your home, especially the basement and attic, is well-insulated and sealed against drafts to prevent heat leakage.

  • Manage Your Thermostat: Use a properly calibrated and programmable thermostat. Lower the temperature by a few degrees, particularly when you are away from home or asleep.

Purchasing Strategies:

  • Buy in the Off-Season: Order heating oil during the summer months when prices are generally at their lowest. This strategy is most effective if you have a large primary tank or a separate storage tank to accommodate bulk deliveries.

  • Consider a Delivery Contract: Some companies offer contracts with a set price for the term. This can lead to savings if market prices for oil increase, but you might pay more if prices drop.

Yes, government incentives and programs are available to encourage energy-efficient upgrades in many regions. These incentives may include tax credits, rebates, grants, and low-interest loans for homeowners who invest in energy-efficient improvements such as HVAC system upgrades, insulation, and efficient windows. The availability and specific details of these incentives can vary by location, so check with your local government or utility company to explore your options.

The average cost to replace or install a new HVAC system is around $7,500. However, the price can range from $5,000 to $12,500, depending on factors like the size of your home, the type and brand of the unit, and your specific heating and cooling needs. If you only need to replace certain components, the cost will be lower; for example, a new AC unit can cost between $2,200 and $5,500, while a new furnace costs $3,200 to $6,000. If additional work like new ductwork is required, the total cost could be as high as $22,000. It's best to contact a local HVAC company for an accurate quote.

Some high-quality steam boilers come with 10-year warranties, but a well-installed, properly maintained model can last at least 20 to 25 years. Learning how to clean a boiler, getting an annual professional service, and keeping up with maintenance and repairs on your heating system are all important for getting the most out of your model. 

The Cottleville, MO homeowners’ guide to boiler installation services

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

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