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  • Average homeowner rating star icon5
    Average homeowner rating
  • Verified reviews icon20
    Verified water softener services reviews

Verified Reviews for Water Softener Service pros in Lathrop, CA

*The Angi rating for Water Softener Service companies in Lathrop, CA 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 Lathrop, CA 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 27, 2026

Find Water softener pros in Lathrop

Avatar for AAA Water Systems
AAA Water Systems
4.7(
57
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Lathrop, CA and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"Damian Fernandez came out to our home for a consultation and presentation of the Kinetico water softener system. He was very thorough, patient, and friendly, and answered our very many questions with expertise and professionalism. Great customer service."
Whole Home Softener / Filter & Reverse Osmosis System
Whole Home Softener / Filter & Reverse Osmosis System
Compact Kinetico Drinking Water System. NSF 58 Certified to provide high quality drinking water!
Desktop style Kinetico Drinking Water System providing high quality water with NSF 58 certification.
Compact Kinetico Drinking Water System. NSF 58 Certified to provide high quality drinking water!

+18

Response time1 day
27 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for AAA Water Systems, Inc.
AAA Water Systems, Inc.
4.1(
57
)
Water Treatment & Purification System - Install or Replace

Serving Lathrop, CA and surrounding areas

Approved

In business since 1980

Free estimates

Warranties offered

"We got a much better deal through Costco for water system."
Combination System (Whole Home Softener & Filt
Reverse Osmosis / Drinking Water System
Salt Free Conditioner & Scale Reduction System
Kinetico Non-Electric Water Softener
Response time12 hrs
71 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for Mainline Plumbing Inc.
Mainline Plumbing Inc.
4.5(
210
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Lathrop, CA and surrounding areas

Approved

In business since 2010

Emergency services offered

Warranties offered

"Miguel and his team were great! They were able to replace a water heater same day , and now my tenants can enjoy their holiday with hot water! I will hire again!"
Drain Clearing
Garbage Disposals
Plumbing Repairs
Tankless Heaters
Leak Detection

+2

Response time7 hrs
Response rate100%
5 neighbors recently requested a quote
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Avatar for Hydro Works Well & Pump
Hydro Works Well & Pump
5.0(
7
)
Well Pump - Repair or Service

Serving Lathrop, CA and surrounding areas

Approved

In business since 2004

Emergency services offered

Warranties offered

"Josh was informative, helpful, and clear on the work."
Completed Pump System
Flow Test
Pressure tank & controller
Panel Mounting
Pressure system

+3

Response time8 hrs
22 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Bee Blessed Water Wells Drilling & Pump Service Inc
Bee Blessed Water Wells Drilling & Pump Service Inc
4.6(
16
)
Well Pump - Repair or Service

Serving Lathrop, CA and surrounding areas

Approved

In business since 2021

Offers commercial services

Customers say: True professional

"One of the best contractors I have ever worked with! Their knowledge & expertise is far above the normal. I was truly "blessed" to have them repair my 100' deep well. The system works better than my original system!"
Response time1 day
Response rate94%
28 neighbors recently requested a quote
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Avatar for A-1 Water Quality
A-1 Water Quality
4.8(
86
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Lathrop, CA and surrounding areas

In business since 1996

Free estimates

Emergency services offered

"Very pleased with the new water softener & installation"
Whole House Treatment
Purified Drinking water
Water Reclam System
Salt free system
Commercial grade unit

+24

Response time11 hrs
Response rate96%
Recommended by97%of homeowners
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Avatar for Puronics Service, Inc.
Puronics Service, Inc.
4.0(
38
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Lathrop, CA and surrounding areas

In business since 1991

Free estimates

Warranties offered

"Great product, Price is a little high but you get what you pay for."
Response time1 day
Recommended by100%of homeowners
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Avatar for Mega Power Electric, Inc
Mega Power Electric, Inc
5.0(
191
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Lathrop, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Great job on the house, they had everything installed in 3 days and once the LAWP Panel from the power company and hooked everything, then everything was working well. they took care of all the paper works and documentation, and everything was done quickly. Best price available for us."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+32

Recommended by100%of homeowners
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Avatar for Mainline Plumbing, Inc.
Mainline Plumbing, Inc.
4.5(
182
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Lathrop, CA and surrounding areas

In business since 2001

Emergency services offered

Warranties offered

"Trey called ahead and arrived at the time he said he would. He was personable, friendly, and professional. He cleaned and flushed my water heater, as I requested. He explained what he would do, and explained what he was doing as he did it. I was very pleased with his work. I would use Mainline Plumbing again without hesitation."
Shower / Tub Remodel
Shower/ Tub Remodel
Shower / Tub Remodel
Shower / Tub Remodel
Bath Tub

+17

Response time4 hrs
Recommended by93%of homeowners
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Showing 1-10 of 37
Water Softeners questions, answered by experts

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.

The average cost to install a water softener, including the system and labor, is approximately $1,500. However, the total price can range widely from $600 to $6,000. For some complete systems, the cost may be between $800 and $2,500. Labor for the installation typically costs between $150 and $1,000.

The final price is influenced by several factors, including:

  • System type, capacity, and complexity

  • Home size and household water demands

  • Water hardness levels

  • Accessibility of the installation site and the extent of plumbing work required

  • Whether new electrical work is needed

  • The professional hired and any local permit costs

Hard water stains can be a headache because they will reoccur as long as hard water flows through. Thankfully, hard water stains are not permanent. With the right tools and an appropriate cleaning routine, you can prevent hard water stains from ever building up. However, you might feel like you are stuck in a constant cleaning cycle. In that case, you may consider hiring a contractor to perform routine cleaning.

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.

Installing a water softener could help reduce calcium buildup in your pool if your pool has high calcium hardness as a result of hard drinking water in your home. Pool softeners work by exchanging calcium and magnesium for sodium, so if you use softened water to top off your pool, it may help keep calcium hardness from rising over time. However, it won’t lower the calcium hardness of the water already in your pool and isn’t a practical way to control pool calcium levels. The average water softener installation cost is between $200 and $6,000.

The Lathrop, CA 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