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Top-Rated Swimming pool heaters installers and replacers in Mascoutah - Updated Nov 2026

Avatar for Inventors Imaginarium
Inventors Imaginarium
New to Angi
Swimming Pool Heaters - Install or Replace

Serving Mascoutah, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

We take pride in delivering dependable, high-quality craftsmanship with honest communication from start to finish. Whether you're planning a small repair or a larger renovation, our goal is to provide durable, professional results that improve the value, function, and appearance of your property.\n\nOur services include residential construction, remodeling, repairs, renovations, demolition, framing, drywall, flooring, painting, trim and finish carpentry, deck and porch work, fencing, siding, roofing repairs, door and window installation, and general handyman services. We also handle property improvements, rental property maintenance, and custom projects tailored to your needs.\n\nEvery project is completed with attention to detail, quality materials, and a commitment to doing the job right the first time. We believe in treating every home as if it were our own by maintaining a clean worksite, respecting your property, and keeping you informed throughout the project. \n\nChoose us today!

4 neighbors recently requested a quote
Avatar for Wideman Pools, LLC
Wideman Pools, LLC
5.0(
20
)
Swimming Pool Heaters - Install or Replace

Serving Mascoutah, IL and surrounding areas

In business since 1980

Free estimates

Credit card accepted

"We decided on a fiberglass pool and chose Wideman. They recommended an electrician who was very good and reasonably priced. We got extra concrete around the pool and the concrete company also did a great job."
First Pool Installed
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+1

Recommended by100%of homeowners
Avatar for Two Men And A Spa Dolly
Two Men And A Spa Dolly
4.1(
14
)
Swimming Pool Heaters - Install or Replace

Serving Mascoutah, IL and surrounding areas

In business since 2003

Credit card accepted

"We purchased our spa from a local company and have had it for nearly 6 years. Back in 2010, we had a leak in the plumbing near the heater and contacted the and quot;sellingand quot; company about repairs and got nothing but a runaround. After some brief internet research, we found Two Men and a Spa Dolly. We called and they were out the next day to inspect and did the repairs within a week after that (had to order parts). When we had another leak this past summer (201) we contacted them again. They were out the next day and made the repairs on the spot. Extremely easy to deal with, professional and quality service. They took the time, on both occasions, to explain to us what the problem was, why it occurred and what they were doing to fix the problem. Their prices are very reasonable. When we had the first problem with the spa, we got a quote from the and quot;selling dealerand quot; over the phone. The cost to actually repair the problem by Two Men and a Spa Dolly was less than half of the selling dealer's quote. If we have any future need for repairs or service on our spa, we will most certainly call Two Men and a Spa Dolly. I would recommend them to anyone in need of spa repair or service.
"
Recommended by91%of homeowners
Avatar for Choice Home Warranty
Choice Home Warranty
4.0(
5,678
)
Swimming Pool Heaters - Install or Replace

Serving Mascoutah, IL and surrounding areas

In business since 2008

Emergency services offered

Credit card accepted

"Called about leak Sunday morning. Plumber came out Monday, determined it needed replacement and notified Choice, who approved claim and permitted plumber to order new water heater. Thursday new water heater was installed. Was kept updated every day by both Choice and the plumber. Workers left my garage clean and I have hot water. Very satisfied and have recommended Choice Home Warranty on the Nextdoor app."
Recommended by81%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Swimming Pool Heaters - Install or Replace

Serving Mascoutah, IL and surrounding areas

In business since 1971

Credit card accepted

"Service guy came as scheduled. Sent his "service" requirements to home base Home base calls back and lists, a very long list of what needs to be done and a very long list of what is not covered and what each item costs. The overall cost was outrageous and they weren't willing to give it to me in writing. Everything I had to pay for was overpriced, of course! They told me my other option would be to purchase my own water heater and they would reimburse me for what there water heater would cost, but no reimbursement for Labor, building permit, or any upgrades required by the local building department. The requirements of the building department were minimal. I went to Home Depot and had them do the installation and saved many hundreds of dollars. Lesson learned, have AHS do simpler repairs that don't require municipal building department approval. Have AHS pay for the equipment, and purchase installation from a trusted local installer."
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+2

Recommended by65%of homeowners
St. Louis Custom Pool Liner & Service
5.0(
1
)
Swimming Pool Heaters - Install or Replace

Serving Mascoutah, IL and surrounding areas

In business since 2020

Free estimates

Emergency services offered

We specialize in custom vinyl liner replacement for swimming pools. We are owner operated with 30 years of experience in the field. Our goal is to quickly transform your problem pool back into your backyard oasis again. Let our staff quickly, timely and professionally make your backyard enjoyable again!

Recommended by100%of homeowners
Jim's Pool Service
1.5(
18
)
Swimming Pool Heaters - Install or Replace

Serving Mascoutah, IL and surrounding areas

In business since 2000

Free estimates

Credit card accepted

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction! \n

Response time1 day
Recommended by18%of homeowners
Avatar for Bob's Remodeling & Repairs
Bob's Remodeling & Repairs
4.0(
1
)
Swimming Pool Heaters - Install or Replace

Serving Mascoutah, IL and surrounding areas

In business since 2000

Bob's Remodeling & Repairs has over 30 years experience in complete custom additions, kitchen/bath remodels, major renovations and repairs, including custom design walls, flooring, and countertops, with your choice of hardwoods,sanding and refinishing of hardwood floors, ceramic porcelain, granite, marble, all solid surfaces. We provide detailed interior/exterior trim and moldings, stairs and railings as well as all interior/exterior home improvements including custom design brick, stone, and cement patios, driveways, walks, and steps. For superior craftsmanship at the best price, we are the contractor of choice. Please see our website at www.bobsremodeling.com. We serve Central Illinois and The St. Louis areas. All our work is guaranteed. We take pride in our quality craftsmanship and our commitment to our customers.

Recommended by100%of homeowners
Avatar for Twistedspark
Twistedspark
New to Angi
Swimming Pool Heaters - Install or Replace

Serving Mascoutah, IL and surrounding areas

Emergency services offered

Credit card accepted

I am a skilled electrician who works great independently. I've wired control cabinets for Nissan, Busch, and Tesla. Shipping containers for the army, as well as some taco bells outside in Virginia!\nWe guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! \nCall or click for your estimate today!\n

Hole in wall
Ceiling light fixture
Turning a storage shed into a business
Hole in wall
Turning a storage shed into a business

+50

FAQs for swimming pool heaters installation and replacement projects in Mascoutah, IL

Yes, you can add a heater to an existing pool. A pro can retrofit a heater to nearly any in-ground or above-ground pool. Adding a heater allows you to start the swim season earlier, finish it later, and maintain a steady water temperature in between. Many owners schedule the job during a larger pool upgrade, but it also works as a standalone project. Professional installation ties the new unit into the existing pump and plumbing for safe, efficient operation.

Most owners switch the heater on a day or two before they plan to swim, then shut it down afterward. Reaching the target temperature can take 24 to 72 hours, depending on pool size and outdoor conditions. Using a cover while the heater is off helps hold the heat and keeps energy costs in check.

Pool heaters can freeze if left exposed to extreme conditions. Freezing can damage internal heater components, potentially leading to costly pool repairs. Cycling water, covering the heater, and regular maintenance help prevent freezing. Sealing or winterizing your heater also protects it during the season—this involves draining water from the heater and its components.

Pool heaters operate with lifespans spanning from seven to 30 years. Gas and propane models last seven to 12 years, while electric and solar heaters perform efficiently for up to 30 years. Consistent professional maintenance and routine inspections extend the heater’s life and improve its performance, ensuring a safe and reliable heating system for your pool.

Before hiring a pool heater installation contractor, conduct thorough research by reviewing online feedback and gathering recommendations from trusted sources. Contact multiple professionals to discuss pricing, request references, and understand the complete installation process. This careful evaluation ensures you select a qualified contractor who delivers high-quality service and a successful installation.

The Mascoutah, IL homeowners’ guide to swimming pool heaters installations and replacements

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