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*The Angi rating for Water Softener Service companies in Spearfish, SD 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 Spearfish, SD 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 March 18, 2026

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Avatar for A-1 Plumbing
A-1 Plumbing
5.0(
13
)

Serving Spearfish, SD and surrounding areas

In business since 2009

Free estimates

"The whole project went very well. They helped tremendously from start to finish with several ideas & advice. They ran into some unseen problems with the floor repair but were able to work it out & come up with a good solution. We are very pleased with the final results & would highly recommend their work. They were always on time & arrived when they said they would."
Recommended by100%of homeowners
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5th Generation Plumbing
New to Angi

Serving Spearfish, SD and surrounding areas

In business since 1997

Free estimates

Credit card accepted

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our major focus is on the quality our work and producing outstanding results. We are committed to creating a level of value unmatched by any of our competitors. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

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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.

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.

Experts recommend that you put two to four bags of potassium chloride in your water softener every month. This amount depends on how much is in the bag (40 pounds is most common) and what your water softener manufacturer recommends. For more specific advice, talk to a water softener pro in your area and read the manual that came with your system.

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. 

The Spearfish, SD 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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