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Verified Reviews for Pool And Spa Servicing pros in Williston, ND

*The Angi rating for Pool And Spa Servicing companies in Williston, ND is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Pool And Spa Servicing needs.

*The HomeAdvisor rating for Pool And Spa Servicing companies in Williston, ND is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Pool And Spa Servicing needs.

Last update on December 10, 2025

Top-Rated Pool and spa technicians in Williston - Updated Nov 2026

Avatar for River City Pool Service LLC
River City Pool Service LLC
5.0(
1
)
Above Ground Swimming Pool or Accessories - Repair or ServiceIn Ground Swimming Pool or Accessories - Repair or ServiceReplace Vinyl Liner for Swimming Pool+4 more

Serving Williston, ND and surrounding areas

In business since 2021

Offers commercial services

We pride our company on reliability, great communication, integrity, and quality work. 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!

Response time9 hrs
Recommended by100%of homeowners
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Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Above Ground Swimming Pool or Accessories - Repair or ServiceHot Tub or Spa - Repair or ServiceIn Ground Swimming Pool or Accessories - Repair or Service+6 more

Serving Williston, ND and surrounding areas

In business since 1971

Credit card accepted

"Well, the first time the replacement was ordered it was the wrong one, which of course, delayed the installation a week. When it was finally installed I had to pay an additional $850 for code upgrades. This I was not informed of by Home Shield. Then we noticed that there was water on the garage floor and found that the pipe coming in from the wall was leaking at the wall so had to call the plumbing company back out to fix it. They first tried to say it was not their fault but since there wasn't a leak before they installed they did fix it. I have used Home Shield a few times before and never had a problem. Some of the companies they use are not the best so you have to research them before you commit. I have found HS service to be good if you do your homework. At the end of the day I was without hot water for almost 3 weeks but it was do to the plumbing company they sent out."
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+2

Recommended by65%of homeowners
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W. Simpson Plumbing Services, LLC
New to Angi
Hot Tub or Spa - Repair or Service

Serving Williston, ND and surrounding areas

In business since 2012

Free estimates

Credit card accepted

Here at W. Simpson Plumbing Services, LLC, we are a full service plumbing company for both residential and commercial. We are local, family owned and operated, and have a strong focus on customer service. We are fully licensed and ready to take on as much work as possible. Call us today for your free estimate. We look forward to meeting your home's needs.

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Pool and Spa Servicing FAQs, answered by experts

Follow these general safety tips for spas and hot tubs:

  • Keep your exterior electrical receptacles covered and dry, especially around your hot tub and pool during periods of use.

  • Make sure you have a GFCI (ground fault circuit interrupter) properly installed to ensure no one gets accidentally shocked or injured by electrocution. 

  • Don’t use the hot tub or your pool during a thunderstorm. 

  • Before using the hot tub, have a certified electrician thoroughly inspect your hot tub and its wiring to make sure you’re in full compliance with all applicable local building codes. 

How often you change the water in your swim spa depends on how often you use it. Most manufacturers recommend changing the water every three to six months. If you use your swim spa throughout the seasons, it’s a good idea to set up a quarterly deep cleaning schedule. The ideal instructions should be in the owner’s manual.

Hot tub heaters typically last seven to 10 years, though some might only last five years if not properly maintained. You can maximize your hot tub heater’s lifespan by ensuring the water’s pH level is properly balanced.

You should put chlorine in your hot tub on a regular basis. To keep bacteria away, keep the chlorine level in your hot tub at between 3-5 mg/l, which may mean you need to add chlorine daily or at least every two to three days. Don’t add chlorine to your hot tub water more than once per day.

Properly maintaining your hot tub will prevent serious issues from occurring down the road. You should replace the filter once a year, regularly look for and repair small cracks in the shell, and test the water quality every few months. You can do this yourself for less than $100 per year.

You can also hire a hot tub service to service your hot tub annually to identify problems early, which could save you money in the long run. They cost about $100 to $200 per call.

The Williston, ND homeowners’ guide to pool and spa services

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

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