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TRUSTED BY DANVILLE, CA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon19
    Verified water softener services reviews

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

Custom Construction
5.0(
11
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Danville, CA and surrounding areas

Approved

In business since 1996

Free estimates

Credit card accepted

"John was Great!!! Our first appointment had to be cancelled due to unforeseen circumstances, but John communicated the issue immediately which was much appreciated, and set new appointment. When John came arrived on time (A+) Professional and listened to my idea/suggestion (A+) Did the job in less than the estimated time (A+) Cleaned and REPAIRED the wall area which I didn't expect (A+) Price was 1/3 of what others wanted to charge. Definitely, recommend NorCal Water Treatment to others, and will be rehiring for future plumbing projects/issues. I'm real BIG on customer service/professionalism and John is "The Man!""
Response time12 hrs
Recommended by100%of homeowners
Avatar for Valley Plumbing Home Center, Inc
Valley Plumbing Home Center, Inc
4.7(
263
)
Well Pump - Repair or Service

Serving Danville, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1982

Emergency services offered

Warranties offered

"Kirk was able to correct both of my plumbing issues very quickly...a faucet that had very little water coming out and a slow draining sink. He also checked the water pressure at the front of the house..it is a bit high so we are going to decide the next step on this. I am always pleased at the communication from Valley Plumbing and most of all I am pleased with Kirk's professionalism, courtesy and skill in solving my problems. Highly recommended. I felt the price was fair and appreciated the senior discount."
Additional Photos
Recommended by94%of homeowners
Avatar for Oak Plumbing Inc
Oak Plumbing Inc
4.6(
101
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Danville, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Oak called 2nd but came next day/ UN-prepared to do either repair or water test (requested on phone) or even replace with ready new ADA toilet that the lying receptionist booker said they have “some in stock and if not he will show a catalog of choices”. Guy came punctually with Nzo tools or appliances Or knowledge of what I asked for as an “URGENT repair/replace”. See ABC review same call. Not quite as bad as them doing same since we also still have broken HVAC too, both said they would fix ( I bought gasket already, they could have put in) or replace if they brought new toilet. Problem is not in water pipes except they need testing for lead - both said they would do this too - when I asked oak re taking a sample, how long sitting in pipes? He wiped off his soda water bottle and asked “which pipes?” !!"
Response time2 days
5 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Hydro Works Well & Pump
Hydro Works Well & Pump
5.0(
7
)
Well Pump - Repair or Service

Serving Danville, CA and surrounding areas

Approved

In business since 2004

Emergency services offered

Warranties offered

"Josh diagnosed our seized water pump on a weekend. He did and acid descaling and replaced a corroded pitless adapter. How our well is back to top performance."
Completed Pump System
Flow Test
Pressure tank & controller
Panel Mounting
Pressure system

+3

Response time8 hrs
23 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Quality Pump Service
Quality Pump Service
4.5(
50
)
Well Pump - Repair or Service

Serving Danville, CA and surrounding areas

Approved

In business since 2010

Emergency services offered

Small jobs welcome

"Quick resolution to an emergent problem due to impending bad weather and continued flooding. Sump pump replaced and connection to drain was done very efficiently."
Response time5 hrs
11 neighbors recently requested a quote
Recommended by87%of homeowners
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 Danville, CA and surrounding areas

Approved

In business since 2021

Offers commercial services

Customers say: True professional

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

Response time1 day
Response rate94%
19 neighbors recently requested a quote
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 Danville, CA and surrounding areas

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
13 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Superior Plumbing & Drain Cleaning Services
Superior Plumbing & Drain Cleaning Services
4.5(
563
)
Well Pump - Repair or Service

Serving Danville, CA and surrounding areas

In business since 2002

Emergency services offered

Warranties offered

"Yonathan from Superior did such an excellent job replacing the old breaking down faucet fixtures in my tub/shower. I my so pleased with the results as well as the entire process!! Everything was done professionally, timely, as described and my home was left clean and orderly My highest rec!"
Additional Photos
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Additional Photos

+9

Response time7 hrs
Response rate100%
Recommended by88%of homeowners
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Water Softeners FAQs, answered by experts

It depends on the type of surface. For instance, if you’re trying to get rid of hard water deposits on glass, you can spray vinegar onto the surface and wipe it off with a soft cloth or non-abrasive sponge. However, if the deposits are on granite or natural stone, it’s better to use baking soda and water rather than vinegar or other acidic cleaners.

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.

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 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

If your water softener repair is fairly straightforward, like a simple filter replacement, then you can probably do it yourself with little risk. However, anything beyond a simple fix should be addressed by someone with extensive plumbing expertise to avoid costly water softener problems, like leaks. 

That said, even simple problems can be complicated to diagnose, particularly if your water softener is attached to a whole-house treatment system. So, unless you feel absolutely certain that the problem is an easy fix that you can take on yourself, it's probably best to hire a plumber to diagnose and fix the problem.

The Danville, CA homeowners’ guide to water softener services

From average costs to expert advice, get all the answers you need to get your job done.