What is a good hardness level for drinking water?

• <div><p>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.</p></div>

Best water softener pros near Preston, MN

Q: What causes poor water pressure in the shower?

• <div><p>There are many possibilities for why your shower&rsquo;s water pressure is low. It might be a simple-to-fix issue like the water valves being partially turned off, a dirty showerhead or hose, leaks in the plumbing, or an old showerhead. However, low water pressure in the shower could also indicate a larger issue with your home&rsquo;s plumbing system.</p></div>

Q: Which areas of the U.S. have hard water?

• <div><p>Most of the U.S. has hard water, especially across portions of the West and Midwest. The areas with the hardest water include parts of Texas, Oklahoma, Kansas, Colorado, New Mexico, Utah, Wyoming, Illinois, North and South Dakota, Ohio, and New York. You&rsquo;ll find soft water in parts of New England, the Southeast, the Pacific Northwest, and Hawaii.</p></div>

Q: Do you need a permit or license to install a water softener?

• <div><p>Whether you need a permit or license for a water softener installation depends on your location, as requirements vary significantly. Some municipalities require the installer to hold a plumbing license, some mandate a permit and an inspection, and others require both. In some areas, no special permit or license is needed at all.</p><p>To determine the rules in your area, you can contact your local building department or consult a local water softener installer or plumber. Often, only certified professionals are authorized to pull the necessary permits, and they will typically handle the entire permitting process 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 Angi&rsquo;s state licensing tool to check an installer&rsquo;s license status.</p></div>

Q: Will a water descaler descale pipes?

• <div><p>No, a water descaler won't descale pipes. The charged water running through the pipes may very slowly dissolve mineral deposits and hold them inside the water, but it's a very gradual process. If your pipes do need descaling, it's much better to get a local plumber to descale your pipes. </p></div>

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Verified Reviews for Water Softener Service pros in Preston, MN

*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

K&A Plumbing, LLC

4.9(

)

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 +++"

23 neighbors recently requested a quote

Recommended by35%of homeowners

Request Quote

Water Quality Options

5.0(

)

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!
"

Recommended by100%of homeowners

Water Treatment & Purification System - Install or Replace

Serving Preston, MN and surrounding areas

In business since 2018

Free estimates

Offers commercial services

"They responded right away, and we were able to get the installation of the water softener done in a very reasonable amount of time. Would highly recommend this company."

Response time3 hrs

Recommended by100%of homeowners

Request Quote

American Home Shield – Home Warranty

3.5(

5,689

)

Well Pump - Repair or Service

Serving Preston, MN and surrounding areas

In business since 1971

Credit card accepted

"He was very nice to talk with and repaired our washing machine. He even helped sweep the water out."

Recommended by65%of homeowners

Request Quote

Water Softeners FAQs, answered by experts

There are many possibilities for why your shower’s water pressure is low. It might be a simple-to-fix issue like the water valves being partially turned off, a dirty showerhead or hose, leaks in the plumbing, or an old showerhead. However, low water pressure in the shower could also indicate a larger issue with your home’s plumbing system.

Most of the U.S. has hard water, especially across portions of the West and Midwest. The areas with the hardest water include parts of Texas, Oklahoma, Kansas, Colorado, New Mexico, Utah, Wyoming, Illinois, North and South Dakota, Ohio, and New York. You’ll find soft water in parts of New England, the Southeast, the Pacific Northwest, and Hawaii.

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.

Whether you need a permit or license for a water softener installation depends on your location, as requirements vary significantly. Some municipalities require the installer to hold a plumbing license, some mandate a permit and an inspection, and others require both. In some areas, no special permit or license is needed at all.

To determine the rules in your area, you can contact your local building department or consult a local water softener installer or plumber. Often, only certified professionals are authorized to pull the necessary permits, and they will typically handle the entire permitting process 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 Angi’s state licensing tool to check an installer’s license status.

No, a water descaler won't descale pipes. The charged water running through the pipes may very slowly dissolve mineral deposits and hold them inside the water, but it's a very gradual process. If your pipes do need descaling, it's much better to get a local plumber to descale your pipes.

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.

See all articles

Paige Bennett
•
Jul 9, 2026Jul 9, 2026
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Give Your Water a Gentle Touch With These Efficient Water Softeners
Water softeners remove hard minerals from your tap water, improving plumbing systems and water-using appliances. Here are the most efficient water softeners out there.