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Find Swimming pool heaters installers and replacers in Seattle

Flomaster Spa & Pool Inc

4.79(
74
)
•Approved Pro

Flomaster Spa & Pool Inc

4.79(
74
)
•Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
34 years of experience

Flomaster Spa & Pool Inc is a family-owned and -operated business serving Washington with pride. Some companies focus on how many jobs they complete, while we focus on the quality of the project. We are not a pool or spa cleaning company. We also do not resurface pools. However, please do not hesitate to call us about repairs or installations. We prefer to speak with all of our potential clients over the phone to better understand their needs. We look forward to speaking with you soon. Thank you for your time.

"They recalled servicing my hot tub from years before, and explained the risks of repair vs replace. Did a great job repairing the unit."

Rex B on October 2023

Flomaster Spa & Pool Inc is a family-owned and -operated business serving Washington with pride. Some companies focus on how many jobs they complete, while we focus on the quality of the project. We are not a pool or spa cleaning company. We also do not resurface pools. However, please do not hesitate to call us about repairs or installations. We prefer to speak with all of our potential clients over the phone to better understand their needs. We look forward to speaking with you soon. Thank you for your time.

"They recalled servicing my hot tub from years before, and explained the risks of repair vs replace. Did a great job repairing the unit."

Rex B on October 2023

Castle Pools and Spa, LLC

4.30(
10
)
•Approved Pro

Castle Pools and Spa, LLC

4.30(
10
)
•Approved Pro
Customers say: Quality work
10 local quotes requested
4 years of experience

With 15 years of experience at Castle Pools and Spa we pride our company on reliability, great communication, integrity, and quality work. From pool remodels and accessory installation to cleaning and maintenance programs and opening/closing service we are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! English and Spanish Available Senior Citizen, Military Veteran, First Responders and Teachers Discounts Available - Inquire Within Deposits May Be Required - Inquire Within Accepts Cash, Check, Major Credit Cards, GooglePay and ApplPay

"No other comments"

Zemical N on April 2025

With 15 years of experience at Castle Pools and Spa we pride our company on reliability, great communication, integrity, and quality work. From pool remodels and accessory installation to cleaning and maintenance programs and opening/closing service we are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! English and Spanish Available Senior Citizen, Military Veteran, First Responders and Teachers Discounts Available - Inquire Within Deposits May Be Required - Inquire Within Accepts Cash, Check, Major Credit Cards, GooglePay and ApplPay

"No other comments"

Zemical N on April 2025

FIVESTARS PAINTING

5.00(
3
)

FIVESTARS PAINTING

5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

FiveStars Painting provides residential and commercial painting services to customers in King County and all cities around Seattle.

FiveStars Painting provides residential and commercial painting services to customers in King County and all cities around Seattle.

Economy Fence Ctr

4.29(
7
)

Economy Fence Ctr

4.29(
7
)
Customers say: Super punctual

Economy Fence has served the Greater Seattle, Bellevue and Everett areas with the highest quality in fence and gate options for years. If you are looking for a professionally installed fence to beautify and add value to your home, you've come to the right place!

Economy Fence has served the Greater Seattle, Bellevue and Everett areas with the highest quality in fence and gate options for years. If you are looking for a professionally installed fence to beautify and add value to your home, you've come to the right place!

Bothwell Builders Inc

5.00(
1
)

Bothwell Builders Inc

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

2 employees. No subs. Cost is determined by the job. No travel charges. No service charges. May contact through email.

2 employees. No subs. Cost is determined by the job. No travel charges. No service charges. May contact through email.

Avatar for Falcon Peak Construction, INC

Falcon Peak Construction, INC

No reviews yet

Falcon Peak Construction, INC

No reviews yet
19 years of experience

Professional general contractor in Auburn and near by cities

Professional general contractor in Auburn and near by cities

Eastside Property Solutions

5.00(
2
)

Eastside Property Solutions

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Eps is a small general contractor who specializes in remodels, property maintenance and service. Licensed insured and bonded.

"looks great!"

Terry C on March 2020

Eps is a small general contractor who specializes in remodels, property maintenance and service. Licensed insured and bonded.

"looks great!"

Terry C on March 2020

Hope Roofing & Construction

4.60(
10
)

Hope Roofing & Construction

4.60(
10
)
Customers say: Terrific value
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

HOPE Roofing & Construction is a local, family-owned & operated contractor with a solid reputation for serving Jefferson & Kitsap counties with integrity for more than 30 years. There are two things that define HOPE Roofing & Construction: our work and our word. Our reputation for excellent work and satisfied customers is proof that, for the craftsman who leads with integrity, there is no gap between form and function, art and shelter, or word and deed.

"Excellent work done in a very timely, professional manner."

John M on May 2018

HOPE Roofing & Construction is a local, family-owned & operated contractor with a solid reputation for serving Jefferson & Kitsap counties with integrity for more than 30 years. There are two things that define HOPE Roofing & Construction: our work and our word. Our reputation for excellent work and satisfied customers is proof that, for the craftsman who leads with integrity, there is no gap between form and function, art and shelter, or word and deed.

"Excellent work done in a very timely, professional manner."

John M on May 2018

CHARLES VANCITTERS BUILDING & CARPENTRY

5.00(
1
)

CHARLES VANCITTERS BUILDING & CARPENTRY

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

carpenter

carpenter

Better Builders Electric, LLC

5.00(
6
)

Better Builders Electric, LLC

5.00(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Electrical licensed residential contractor, home panel, meter, lighting, design, troubleshooting, service calls, home rewire at great prices. Available on weekends by appointment

Electrical licensed residential contractor, home panel, meter, lighting, design, troubleshooting, service calls, home rewire at great prices. Available on weekends by appointment

...
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FAQs for swimming pool heaters installation and replacement projects in Seattle, WA

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 Seattle, WA 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.

See all articles