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Best boiler installation pros near Oak Grove, MO

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    Verified boiler installation services reviews

Top-Rated Boiler installation pros in Oak Grove - Updated Nov 2026

Avatar for Insulation Pros
Insulation Pros
4.9(
73
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Oak Grove, MO and surrounding areas

In business since 2013

Free estimates

Emergency services offered

"I highly recommend Insulation Pros of KC for your insulation needs. Kyle the Sales Manager: made it easy to understand what I needed. Josie the Office Manager: took the time to answer my questions when I called, and was the one responsible for my decision to go with Insulation Pros. The installation crew: Devon, Tyler and Leo were a great team to work with, very personable and just all around nice guys who did a great job with the installation. Tanner - the Production Manager, who came by to see that everything was going like it should. From the first meeting with Kyle to the time the crew drove away, it was easy and pleasant to work with this company and they did a great job. Attached are pictures to show the 22" of insulation in my attic! :)"
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+16

Recommended by97%of homeowners
Avatar for First Mate Heating & Cooling
First Mate Heating & Cooling
4.9(
24
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Oak Grove, MO and surrounding areas

In business since 1971

Emergency services offered

Credit card accepted

"They had to replace and install the new heating system. They are wonderful and we have used them probably for over 10 years now. They are available day in and out. They are I believe a smaller company so if there is any issues and anything to discuss, you have the ability to talk to the owner. They actually replaced the heater one time before and it was a bad unit. It wasn't anything we did or anything they did, it was just that the unit was faulty. The whole unit flamed up our heating system. They came out and completely replaced the unit; they actually fixed everything that was screened for coil, I guess it's commonly known among these people and they didn't charge for that. This happened about four to five years ago. They are just very good and gave a very good deal as we were using them for more than 5 years. We told them to purchase a new unit, but they replaced it with a very good deal. They are just a great set of people. Overall the experience was excellent and will continue to use them."
Recommended by95%of homeowners
Bob Mills Heating & Cooling
5.0(
15
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Oak Grove, MO and surrounding areas

In business since 1999

Free estimates

Credit card accepted

"Prior to calling Bob, we had several guys come in to give us estimates. Bob's estimate was by far the best and the work he did was top quality. He and his guys moved my existing furnace to a new location int he basement and installed a new AC. They also moved the hot water heater. I am very pleased with his service. They were prefessional and respectful. Bob is a straight shooter. Absolutely no BS! I will be using him for ALL of my future HVAC needs. I HIGHLY recommend you call him and have him come give you an estimate if you need service, repair or replacement.
"
Recommended by100%of homeowners
Avatar for Mammoth Heating and Cooling LLC
Mammoth Heating and Cooling LLC
4.9(
9
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Oak Grove, MO and surrounding areas

In business since 2020

Free estimates

Emergency services offered

"Fantastic company!!! Mammoth removed my conventional HVAC and all ductwork while upgrading my home to an energy efficient split system.... which is amazing! My entire house is comfortable, the system is great and our overall energy bills have dropped! The Mammoth team were on top of their game and I couldn’t be happier with their service."
Agnus Arts HVAC
Agnus Arts HVAC
Agnus Arts HVAC
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+9

Recommended by100%of homeowners
7 Arrows Heating And Cooling
4.9(
12
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Oak Grove, MO and surrounding areas

"It went very well. He answered all my questions completely and installed in a timely manner. Checked my furnace as well to see that it was running efficiently. He went above and beyond to make sure everything was running properly. He did not try to replace things that were not necessary. He also corrected things that I had done previously by another heating and cooling company, which I overpaid for."
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+31

Recommended by100%of homeowners
Avatar for Liles Heating and Cooling, LLC
Liles Heating and Cooling, LLC
5.0(
7
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Oak Grove, MO and surrounding areas

In business since 2010

Free estimates

Emergency services offered

We are a full service company. Also we offer service contracts for an affordable price and 15% off on any parts. 24hour same day service. Also we offer Plumbing,Electrical and Heating and Cooling service and installation. Geothermal is one of our specialties. All major credit cards are Excepted and financing available with Approved Credit.

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+14

Recommended by100%of homeowners
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Install Boiler FAQs, answered by experts

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.

Hydronic and standard electric baseboard heaters differ in how they operate, their cost, and their performance. Standard convection heaters use electric coils to heat the air directly, while hydronic heaters warm a contained liquid like water or oil, which then radiates heat into the room.

In terms of cost and efficiency, hydronic heaters usually have a higher upfront price but are more energy-efficient and cheaper to run over time. This is because the heated liquid retains warmth, allowing the heater to continue providing heat for a while after the thermostat turns it off. In contrast, electric heaters provide heat more quickly but are less efficient.

Ultimately, the better choice depends on your priorities. If you need a room to heat up fast and have a lower initial budget, an electric heater might be suitable. If long-term energy savings are more important and you don't mind a slower heat-up time, a hydronic heater is likely the better option.

On average, you’ll need about two gallons of oil per day to heat your house when it’s 50 degrees Fahrenheit outside. Most oil tank capacity is about 275 gallons, and heating your house with two gallons of oil per day will last about four and a half months. This consumption will vary depending on the climate and average temperature in your location. For example, if the winters are longer and colder where you live, you’ll probably need to refill your oil tank at least once to get through the winter.

Most installations take 2-5 days, including old system removal and setup.

If you go to turn it counterclockwise and it won’t turn anymore, it’s open. Like most other valves, you should be able to turn a radiator valve counterclockwise (to the left) to open it and clockwise (right) to close it. To close a radiator valve, turn it clockwise until you meet some resistance and can’t turn anymore, but do so carefully to avoid breaking the valve.

The Oak Grove, MO homeowners’ guide to boiler installation services

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