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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

Find Water softener pros in Spearfish

Avatar for A-1 Plumbing
A-1 Plumbing
5.0(
13
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

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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Patriot Plumbing Inc - Home Facebook
4.5(
87
)
Well Pump - Repair or Service

Serving Spearfish, SD and surrounding areas

In business since 1985

Free estimates

Offers commercial services

"Scott and Grant came to our rescue when we moved into a pre-owned home. Replaced the water heater, put in a sink and new stools. There were so many issues but they were taken care of for us. They came as strangers and left as friends. We are so pleased with what they did."
Response time1 day
Recommended by97%of homeowners
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5th Generation Plumbing
New to Angi
Well Pump - Repair or Service

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.

You can install a water softener system by turning off the water supply, draining the water, and then connecting your device to the waterline. Next, you’ll fill your tank with the recommended amount of salt or brine (whichever your unit calls for; be sure to read the instructions). Turn the water supply on and check for leaks. You can opt to let your water run for a few minutes, then test it using strips. 

The process of inspecting your water softener system is similar.

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

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. 

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.

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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