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Find Swimming pool heaters installers and replacers in Mountlake Terrace

Avatar for Puget Sound Pool Pros LLC
Puget Sound Pool Pros LLC
5.0(
5
)
Swimming Pool Heaters - Install or Replace

Serving Mountlake Terrace, WA and surrounding areas

Approved

Emergency services offered

Warranties offered

Small jobs welcome

Puget Sound Pool Pros LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Hot Tub Wash
Hot Tub Wash
Hot Tub Wash
Heater cleaning
Heater cleaning

+25

3 neighbors recently requested a quote
Advanced Pool & Spa
4.0(
36
)
Swimming Pool Heaters - Install or Replace

Serving Mountlake Terrace, WA and surrounding areas

In business since 1997

Warranties offered

Credit card accepted

"It turned out that there was no problem with my whirlpool tub, but I wasn't using the button properly to turn on the jets, so I was given instructions on that. Everything about the service call was fine, but I was a little unhappy about the fact that the guys boots were dirty and tracked little dirt piles all over my almost white carpet. If you aren't going to bring shoe covers or take your shoes off, then you should be certain your shoes are clean before coming into someone's house."
Recommended by87%of homeowners
Avatar for ASA Pools & Hot tubs
ASA Pools & Hot tubs
5.0(
5
)
Swimming Pool Heaters - Install or Replace

Serving Mountlake Terrace, WA and surrounding areas

In business since 2025

Free estimates

Emergency services offered

ASA Pools & Hot Tubs – Expert Pool & Hot Tub Care\n\nAt ASA Pools & Hot Tubs, we keep your pool and hot tub sparkling clean and perfectly balanced without draining your wallet. Our services include:\n1) Pool and hot tub cleaning\n2) Water testing and balancing\n3) Pool equipment repairs (pumps, filters, heaters – pools only)\n4) Routine maintenance for pools and hot tubs\n5) Emergency service for pools\n\nPlease note: We do not provide hot tub repairs only cleaning and maintenance.\n\nWe guarantee the lowest price in the Seattle area. If you find a better quote, we’ll beat it!\n\nServing Seattle and surrounding communities, we’re committed to affordable, reliable service you can trust.\n\n📞 Call us today for the best price and fastest response in town!\n\n

Hot Tub Service
Pool Maintenance
Pool Maintenance
Pool Maintenance
Hot tub deep cleaning

+5

Response time11 hrs
1 neighbors recently requested a quote
Castle Pools and Spa, LLC
3.2(
14
)
Swimming Pool Heaters - Install or Replace

Serving Mountlake Terrace, WA and surrounding areas

In business since 2021

Free estimates

Credit card accepted

"My pool was such a gross mess. Trying to maintain a farm for the first time and never owning a pool before either, it was such an overwhelming task for me to learn how to keep a pool. It didnâ t help every year that something would break and past pool people would take advantage of the fact that I didnâ t have any knowledge about pools and overcharge me for fixing them or replacing parts that I didnâ t need or couldnâ t use. It was just one thing after another in order for me to get this pool running, so I ended up trying to dig my head in the sand about it. I hoped to get it filled with dirt or leave it empty, but Hugo informed me of the problematic issues of doing those things. Before Castle Pools, no one else would touch it. As soon as I mentioned it was green, every pool company would back pedal and tell me they were too busy. I didnâ t realize there was a certain time of the year youâ re supposed to have your pools done and apparently calling in May was too late in the season. But Hugo and Brenda were the only pool company who were willing to help me. Never once did they make me feel like I was a terrible pool owner or like I had done something wrong or out of the ordinary. They basically told me donâ t worry, we got this, so you wonâ t have to! What a relief and I felt like a ton of bricks had been lifted off my to do list. They have a full clientele and I didnâ t realize this, but they still made it a point to come after their normal business hours to check on the progress as we were emptying out the pool and refilling it. It went from being a pond housing a village of thousands of frogs and salamanders to being a crystal clear, working pool again. It took two and a half days of pumping it out and another day of pressure washing and pumping, and 4 days of filling with water, but it actually is a luxury I will get to use now! I have lived here for over four years and Iâ ve never once been able to use my pool! Aside from the great care they have given our pool, Hugo and Brenda are also just genuinely good people. They have a great energy about them, are friendly, reassuring, and reliable. They communicate well and always came when they said they would. A big huge thumbs up for them! Thank you Castle Pools and Spa! Thank you Hugo and Brenda!"
Response time3 days
Recommended by80%of homeowners
Puget Sound Stone Repair dba Edmonds Tile & Stone
5.0(
9
)
Swimming Pool Heaters - Install or Replace

Serving Mountlake Terrace, WA and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"My husband and I are extremely happy with the finished product. Todd and his crew cleaned up every day. They were perfectionists in their installation taking the time that was necessary to do the job correctly. They were so quiet that there were times you did not even know they were in the house. The price was exactly the same as the bid. Todd is a talented craftsman who cares about the final product and respects the needs and wishes of the people who engage his services. We would strongly encourage others to use his services."
Recommended by100%of homeowners
Avatar for PERSONAL NICHE
PERSONAL NICHE
4.2(
144
)
Swimming Pool Heaters - Install or Replace

Serving Mountlake Terrace, WA and surrounding areas

In business since 2004

Emergency services offered

Credit card accepted

"We had two jobs done on two different days. We had to call back to arrange a time to have the other work completed. On the day of service, they were supposed to call when they were on there way. They never call. Fortunately one of us was home. The door to the garage was installed with an uneven gap on the bottom, so now we need to get a piece of weather stripping for the bottom of the door and complete the job ourselves. The filler they used to fill the nail holes on the kitchen trim is a red clay color that was used very liberally. Now we need to do a bunch of sanding and repaint all of the trim. They did reinstall our bathroom sink correctly. We did not expect to have to do this much follow up work. We would not hire them again."
Additional Photos
Recommended by91%of homeowners
Showing 1-10 of 21
FAQs for swimming pool heaters installation and replacement projects in Mountlake Terrace, 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 Mountlake Terrace, 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.