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Verified Reviews for Pool And Spa Servicing pros in Duluth, MN

*The Angi rating for Pool And Spa Servicing companies in Duluth, MN 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 Duluth, MN 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 January 21, 2026

Find Pool and spa technicians in Duluth

Avatar for Environmental Testing & Research Laboratories, Inc

Environmental Testing & Research Laboratories, Inc

4.85(
347
)

Environmental Testing & Research Laboratories, Inc

4.85(
347
)
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

MARSHALL HARDWARE

5.00(
10
)

MARSHALL HARDWARE

5.00(
10
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Our family has operated Marshall Hardware since 1939. Serving the Lakeside/Lester Park neighborhoods with all thier hardware needs. We are a fun and friendly store where Kids and pets are always welcome. Customers tell us "We have everything!"

Our family has operated Marshall Hardware since 1939. Serving the Lakeside/Lester Park neighborhoods with all thier hardware needs. We are a fun and friendly store where Kids and pets are always welcome. Customers tell us "We have everything!"

Surface Specialists of Arrowhead Country

5.00(
7
)

Surface Specialists of Arrowhead Country

5.00(
7
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Additional email - [email protected]. Additional DBAs - Surface Specialists Inc, Surface Specialists. Independently owned & operated. See website for additional service areas.

"Surface Specialists did an absolutely wonderful job! Our bathtub looks just like new! I would highly recommend this company. It is great that they have the skills to restore an old bathtub, as opposed to us having to replace the bathtub."

Ron B on March 2021

Additional email - [email protected]. Additional DBAs - Surface Specialists Inc, Surface Specialists. Independently owned & operated. See website for additional service areas.

"Surface Specialists did an absolutely wonderful job! Our bathtub looks just like new! I would highly recommend this company. It is great that they have the skills to restore an old bathtub, as opposed to us having to replace the bathtub."

Ron B on March 2021

Heavenly Heat Saunas

3.20(
5
)

Heavenly Heat Saunas

3.20(
5
)
Customers say: Super punctual
39 years of experience

Heavenly Heat Infrared Saunas are made for the chemically sensitive. That means that our infrared saunas create an ideal, safe, and effective detoxification environment for anyone seeking to eliminate toxic substances from their body.

"I purchased a Heavenly Heat Sauna a few weeks ago . What I liked is you don?t smell any glues . I also liked its easy ( two man ) assembly. What I don?t like , in order to avoid using glues, they use pins or very thin nails. Some pins were missing and some were not beneath the surface. For the rough edges you?re provided with a small piece of sandpaper . Bot at a cost of over 5k you don?t expect to do sanding. My biggest complaint is that it takes almost an hour to get the sauna to 150 degrees. Definitely not worth the price. "

guy a on December 2025

Heavenly Heat Infrared Saunas are made for the chemically sensitive. That means that our infrared saunas create an ideal, safe, and effective detoxification environment for anyone seeking to eliminate toxic substances from their body.

"I purchased a Heavenly Heat Sauna a few weeks ago . What I liked is you don?t smell any glues . I also liked its easy ( two man ) assembly. What I don?t like , in order to avoid using glues, they use pins or very thin nails. Some pins were missing and some were not beneath the surface. For the rough edges you?re provided with a small piece of sandpaper . Bot at a cost of over 5k you don?t expect to do sanding. My biggest complaint is that it takes almost an hour to get the sauna to 150 degrees. Definitely not worth the price. "

guy a on December 2025

Avatar for American Tubs....

American Tubs....

2.33(
3
)

American Tubs....

2.33(
3
)
Customers say: Terrific value
14 years of experience

American Tubs designs and manufactures a complete line of premium quality Walk-In Bathtubs that are ideal for people with Limited Mobility, Seniors, Disabled and people with pain, arthritis, stress and other debilitating conditions.

American Tubs designs and manufactures a complete line of premium quality Walk-In Bathtubs that are ideal for people with Limited Mobility, Seniors, Disabled and people with pain, arthritis, stress and other debilitating conditions.

Showing 1-10 of 15
Pool and Spa Servicing questions, answered by experts

Whether you can repair a hot tub depends on the severity of the problem and the location. With the right tools and knowledge, you can fix problems like small leaks or switching out a dirty filter. However, electrical and plumbing issues require a licensed professional due to the inherent risk, particularly when mixing water with electricity.

Shocking your hot tub means adding extra chemicals to the water. Most spa experts recommend doing this once a week for proper hot tub maintenance, but you can do it more if needed. Shocking has multiple benefits, including preventing the water from becoming murky and it’s essential in removing harmful bacteria from the water.

It’s possible to move a hot tub on its side or base as long as it fits snugly in the moving truck, with plenty of padding around it. This moving method requires specialized equipment and careful planning, like moving straps, dollies, and moving blankets.

No, you cannot clean your hot tub filters in the dishwasher. While it may seem like a good idea, the dishwasher soap isn’t gentle enough for hot tub filters and can damage them. Gentle cleaning is better when cleaning the hot tub filters and keeping them intact.

If your hot tub is well-maintained, covered tightly, and the water is balanced and sanitized correctly, it can remain unused for up to two weeks without significant issues. Beyond this period, the water quality may start to deteriorate, potentially leading to the growth of algae and bacteria. However, it's crucial to note that this timeline can change due to factors like water temperature, sanitation levels, and the quality of your hot tub cover. Regular maintenance and water testing are essential to ensure the water remains safe and clean during periods of inactivity.

The Duluth, MN 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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