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TRUSTED BY O FALLON, IL HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon515
    Verified boiler installation services reviews

Verified Reviews for Boiler Installation pros in O Fallon, IL

*The Angi rating for Boiler Installation companies in O Fallon, IL 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 O Fallon, IL 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 October 29, 2025

Find Boiler installation pros in O Fallon

Avatar for Tiger Plumbing, Heating, Air Conditioning, & Electrical Services

Tiger Plumbing, Heating, Air Conditioning, & Electrical Services

1902 Vandalia Street, Suite 100
3.80(
80
)
•Approved Pro

Tiger Plumbing, Heating, Air Conditioning, & Electrical Services

1902 Vandalia Street, Suite 100
3.80(
80
)
•Approved Pro
Customers say: Quick response
216 local quotes requested
32 years of experience

Tiger Plumbing, Heating, Air Conditioning, & Electrical Services takes pride in being your preferred local plumbers, electricians, and HVAC technicians! In fact, more homeowners in the St. Louis Metro East & Central Illinois communities we serve, say they would call us again before any other plumbing, electrical, heating, or air conditioning service!

"This company is outstanding. I can not sing them enough praises."

Jacqueline W on May 2025

Tiger Plumbing, Heating, Air Conditioning, & Electrical Services takes pride in being your preferred local plumbers, electricians, and HVAC technicians! In fact, more homeowners in the St. Louis Metro East & Central Illinois communities we serve, say they would call us again before any other plumbing, electrical, heating, or air conditioning service!

"This company is outstanding. I can not sing them enough praises."

Jacqueline W on May 2025

Avatar for Roto-Rooter Plumbing & Water Cleanup

Roto-Rooter Plumbing & Water Cleanup

4806 Trade Access Blvd
4.48(
965
)
•Approved Pro

Roto-Rooter Plumbing & Water Cleanup

4806 Trade Access Blvd
4.48(
965
)
•Approved Pro
Customers say: Super punctual
469 local quotes requested
90 years of experience

When you need an emergency plumber or a drain cleaner, call Roto-Rooter Plumbing & Water Cleanup. Your fast & reliable plumber can fix any plumbing problem, including sump pumps, toilet repair, faucet repair, faucet replacement, garbage disposals, water heaters, bathtubs, showers, and outside faucets. Roto-Rooter is best known for drain cleaning & sewer cleaning. We fix drain clogs, clogged toilets or sinks, blockage of main sewer lines, slow draining shower and bathtub drains, sewer lines and leaking or burst pipes. We also specialize in water damage restoration & water cleanup services. We can fix and clean up your flooded basement too. Roto-Rooter is a 24-hour plumber near you and provides emergency service.

"Very professional service, and great customer service."

Janet H on April 2025

When you need an emergency plumber or a drain cleaner, call Roto-Rooter Plumbing & Water Cleanup. Your fast & reliable plumber can fix any plumbing problem, including sump pumps, toilet repair, faucet repair, faucet replacement, garbage disposals, water heaters, bathtubs, showers, and outside faucets. Roto-Rooter is best known for drain cleaning & sewer cleaning. We fix drain clogs, clogged toilets or sinks, blockage of main sewer lines, slow draining shower and bathtub drains, sewer lines and leaking or burst pipes. We also specialize in water damage restoration & water cleanup services. We can fix and clean up your flooded basement too. Roto-Rooter is a 24-hour plumber near you and provides emergency service.

"Very professional service, and great customer service."

Janet H on April 2025

Avatar for Good Service Heating & Cooling, LLC

Good Service Heating & Cooling, LLC

1 S Florissant Rd
5.00(
3
)
•Approved Pro

Good Service Heating & Cooling, LLC

1 S Florissant Rd
5.00(
3
)
•Approved Pro
35 local quotes requested
Emergency services offered

Good Service Heating and Cooling,LLC. Over 30 years of HVAC experience. Honest and affordable. Do it right the first time.

"He responded very quickly and was able to come out and fix my mini split. I would recommend this company to anyone looking for a fair price and good work. Thanks again! "

Jackie K on October 2025

Good Service Heating and Cooling,LLC. Over 30 years of HVAC experience. Honest and affordable. Do it right the first time.

"He responded very quickly and was able to come out and fix my mini split. I would recommend this company to anyone looking for a fair price and good work. Thanks again! "

Jackie K on October 2025

Avatar for JL General Contracting

JL General Contracting

177 Sunset Avenue
No reviews yet

JL General Contracting

177 Sunset Avenue
No reviews yet
2 years of experience

General Contractor so jack of all trades 10+ years construction experience, friendly, professional, honest, very attentive to detail, quick, clean services. Free estimates!

General Contractor so jack of all trades 10+ years construction experience, friendly, professional, honest, very attentive to detail, quick, clean services. Free estimates!

Alpha Services STL

913 Cadora Drive, St Louis MO 63137
No reviews yet

Alpha Services STL

913 Cadora Drive, St Louis MO 63137
No reviews yet

We are a full service handyman service. We have an A + rating with the St. Louis Better Business Bureau and have over 30 years of experience with residential and commercial work. We can do from A/Z at your home or business. Please take a moment to check out our profile on the BBB website.

We are a full service handyman service. We have an A + rating with the St. Louis Better Business Bureau and have over 30 years of experience with residential and commercial work. We can do from A/Z at your home or business. Please take a moment to check out our profile on the BBB website.

Avatar for DLR Mechanical

DLR Mechanical

No reviews yet

DLR Mechanical

No reviews yet
6 years of experience

DLR Mechanical is a do it all kind of business. We specialize in welding and fabrication, General mechanical repairs and equipment restoration. We also have keep guys staffed with 5+ years of electrical, plumbing, construction and carpentry skills. We try our best to satisfy all of our costumers needs at the best available pricing.

DLR Mechanical is a do it all kind of business. We specialize in welding and fabrication, General mechanical repairs and equipment restoration. We also have keep guys staffed with 5+ years of electrical, plumbing, construction and carpentry skills. We try our best to satisfy all of our costumers needs at the best available pricing.

Avatar for Stone Plumbing, LLC

Stone Plumbing, LLC

Surrounding Areas
5.00(
7
)

Stone Plumbing, LLC

Surrounding Areas
5.00(
7
)
Customers say: Quick response
3 years of experience

We are a family plumbing business owned and operated by the Stone Brothers with 30 years combined experience. We proudly serve the Riverbend area. We look forward to doing business with you and finding a solution to all your plumbing needs! We are licensed, bonded, and insured. Please contact us for a quote! We look forward to working with you! License # 055-045059

"I had a dishwasher installed and I couldn't be happier. The team was incredibly courteous and professional, providing top-notch service at reasonable rates. I highly recommend them for any plumbing needs."

Kerry S on November 2023

We are a family plumbing business owned and operated by the Stone Brothers with 30 years combined experience. We proudly serve the Riverbend area. We look forward to doing business with you and finding a solution to all your plumbing needs! We are licensed, bonded, and insured. Please contact us for a quote! We look forward to working with you! License # 055-045059

"I had a dishwasher installed and I couldn't be happier. The team was incredibly courteous and professional, providing top-notch service at reasonable rates. I highly recommend them for any plumbing needs."

Kerry S on November 2023

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Install Boiler questions, answered by experts

You can use a boiler and a furnace, although it’s not common to use both for whole-house heating. For example, your furnace may take care of HVAC heating through your vents, while a boiler powers your floor-based radiant heating in the bathrooms. Mixing and matching like this gives homeowners a variety of heating possibilities.

Both hydronic and electric hydronic heaters usually come with a higher price tag up front, but you can save more on energy costs over time compared to standard heaters. They also provide heat for a short time after the heater is actually turned off, making them more efficient. Additionally, standard convection heaters use electric coils to heat up the air, whereas hydronic heaters warm up water or oil which then heats the air.

You can replace baseboard heaters with many other types of HVAC systems, including forced-air furnaces, hydronic heating, and heat pumps. Each one has its advantages and disadvantages, so the best choice for you will depend on your budget, preferences, and the design of your house. If you aren’t sure which option is right for you, ask an HVAC pro for guidance.

The absence of heating or hot water, unusual noises like banging or gurgling, and visible water leakage are key signs. Abnormal boiler pressure, flame irregularities (for gas boilers), or pilot light issues may also signal trouble. Frequent cycling, soot or staining, and unusual odors, particularly gas-like smells, should not be ignored. Modern boilers often display error codes or lockout mode upon detecting issues. Uneven heating across radiators and rising energy bills without increased usage can further point to problems. Prompt attention to these signs is essential to prevent further damage and ensure safety.

It costs homeowners between $5,000 and $12,500 to install a new HVAC system. This number varies, as each home has its own heating and cooling needs. Even a home with the same footage and number of occupants will have different HVAC requirements based on the number of windows, the climate, and how often the occupants use the system. 

The O Fallon, IL 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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