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*The Angi rating for Water Softener Service companies in Mentor, MN is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Softener Service needs.

*The HomeAdvisor rating for Water Softener Service companies in Mentor, MN is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Softener Service needs.

Last update on December 15, 2025

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Avatar for High Plains Water, Inc.
High Plains Water, Inc.
5.0(
5
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Mentor, MN and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"Excellent service excellent product I would recommend this company to everyone very very pleased with them if I could give them 25 stars I would"
High Purity water for a lab in a municipal water treatment plant
Office water coolers
Office water coolers
Recommended by100%of homeowners
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Lindsay's Crystal Pure Water, Inc.
5.0(
2
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Mentor, MN and surrounding areas

In business since 2002

Free estimates

Offers commercial services

Our mission at Lindsay's Crystal Pure Water, Inc. is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face at the end of a project! Lindsay's Crystal Pure Water, Inc. stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!

Response time2 days
Recommended by100%of homeowners
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All Round Plumbing HVAC and General Home Repair
5.0(
1
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Mentor, MN and surrounding areas

In business since 2007

Free estimates

Credit card accepted

With over a decade of experience servicing Minnesota residents, we're you're number one stop for all your home needs. Our professionalism, integrity and professionalism has set us apart from the rest. Give us a call today!

Recommended by100%of homeowners
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Water Softeners questions, answered by experts

Whether you need a license or permit for water softener installation depends on your location. Some municipalities require the installer to hold a plumbing license, while others may only require a permit and an inspection. In some cases, both a permit and a licensed installer are necessary, and some areas have no requirements at all. Often, only certified plumbers and electricians are allowed to pull the necessary permits. To find out the specific regulations in your area, you can contact your local building department. Alternatively, a local water softener installer or plumber will be familiar with the requirements and can typically pull the permits for you. Regardless of local laws, it is always recommended to hire a licensed professional to ensure the system is sized and installed correctly. You can use tools like Angi’s state licensing tool to verify an installer's license status.

Choosing involves understanding water hardness levels, household size, desired features, and consulting professionals experienced in suitable system types.

A good hardness level for drinking water can vary based on personal preferences, but an ideal level is 3.5 to 7 GPG. This means your water isn’t soft or hard. However, some people prefer the “fresh” taste from the minerals in hard water, while others like the smoother, “slippery” texture of soft water.

No. You should never directly drain a water softener into a sewer cleanout. This practice is illegal in many areas because it could allow raw sewage to get into your drinking water and make you seriously ill. Many places have codes requiring a specific seal, pipe, and a large air gap between a water softener and a sewage cleanout. Check out Florida's Plumbing Building Code as an example of what these restrictions might look like.

A water softener removes minerals from your drinking water and can make your house water softer. These softeners are designed to extend the lifetime of your plumbing system while also making water safer and more palatable for drinking. Hard water, which is water with a heavy amount of suspended particles, can also cause hair damage, skin irritation, and buildup in your pipes.

The Mentor, MN homeowners’ guide to water softener services

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

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