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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

Top-Rated Water softener pros in Preston - Updated Nov 2026

Avatar for K&A Plumbing, LLC
K&A Plumbing, LLC
4.8(
13
)
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 by38%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 FAQs, answered by experts

Yes. Hard water is what causes scale buildup, and a whole-house filter provides numerous benefits beyond water softening. Any water that enters your home will go through the filter, which cleans up all water that you will use for cooking, bathing, and drinking. A whole-house water filter also blocks harmful particles like heavy metals.

Routine maintenance involves recharging the resin bed with salt or potassium, cleaning components, and periodic inspection.

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. 

You can decide whether you need a water softener or water filter based on how your bathing or laundry experience is. If you notice issues like limescale buildup, dry skin, or stains on dishes—all telltale signs of hard water—you'd likely benefit from a water softener. However, if your main concern is over chemicals or bacteria in your tap water filter, and not just comfort, a filter is a better option.

Hard water isn’t necessarily bad for you. In some ways, it’s good for you. If you’re deficient in magnesium or calcium, hard water can give you a mineral boost that you wouldn’t get with soft water. However, this is where the benefits of hard water pretty much stop. Hard water can cause many minor inconveniences and lead to costly, premature replacements of your water-using appliances.

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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