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*The Angi rating for Water Softener Service companies in Preston, 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 Preston, 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 August 10, 2026

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Avatar for K&A Plumbing, LLC
K&A Plumbing, LLC
4.9(
12
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Preston, MN and surrounding areas

Approved

In business since 2018

Free estimates

Offers commercial services

"Derrick and Eric, did a terrific job, they replaced our water heater the same day that I Called. Derrick even replace a water shut off control that had been bothering us They are a couple of guys that really do a great job for their customers. They are really service oriented. They are my first and only call for my plumbing needs. A +++"
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21 neighbors recently requested a quote
Recommended by41%of homeowners
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Avatar for Water Quality Options
Water Quality Options
5.0(
5
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Preston, MN and surrounding areas

In business since 2008

Free estimates

"Showed up on time, very courteous and professional........
We bought a water softener ourselves, and Dave basically installed it for us......he provided all the material necessary to do the installation.
Would recommend him to anyone.......
Thanks Dave!
"
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+2

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

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 lower-end water softener would cost around $900, not including installation. Each home has different requirements, water hardness, and number of inhabitants, so there’s a huge range in pricing—$600 to over $6,000. The average water softener repair bill is around $500, meaning it’s a much better option to repair any issues and only replace your softener if absolutely necessary. 

No, hard water isn’t dangerous. The added calcium in hard water can contribute to good bone health. However, it can also cause dry skin and hair. If you have dry skin or hair, consider using a water-softening system to help minimize the minerals in your water. Plus, these systems can also add some sodium to your diet. 

Drinking hard water is not known to have any negative health impacts. Using hard water can lead to dry skin and hair, and the minerals in hard water can build up in pipes, faucets, and appliances. Hard water is more of a threat to your plumbing than it is to your health.

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.

The Preston, 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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