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

Serving Napa, 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
Boden Plumbing Inc
4.7(
42
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Napa, CA and surrounding areas

Approved

In business since 1992

Credit card accepted

Customers say: Super punctual

"Boden Plumbing was able to send a team over immediately and they worked diligently to correct the problem....nowhere near as easy as they thought upon arrival."
Response time8 hrs
Response rate100%
1 neighbors recently requested a quote
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 Napa, 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
4 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Beastbay Plumbing
Beastbay Plumbing
4.5(
218
)
Water Treatment & Purification System - Install or Replace

Serving Napa, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Emergency services offered

"Ms.Dee is amazing and Brandon is a great plumber! They were able to take care of my leaking water heater same day! Saved my items in the garage and a headache! On a Friday!!!!! I will recommend them to everyone"
Tankless Water Heater
Tankless water heater
Tankless and Water Filtration
Noritz Tankless
tub/shower enclosure

+22

Response time6 hrs
Response rate91%
284 neighbors recently requested a quote
Avatar for Hydro Works Well & Pump
Hydro Works Well & Pump
5.0(
7
)
Well Pump - Repair or Service

Serving Napa, 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 Moore Home Services
Moore Home Services
4.4(
225
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Napa, CA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Very professional. Resolved our issue in a timely manner. Only complaint is that a part was replaced without talking to me about it ahead of time. It wasn’t a cheap part. After the work was done and I was given an explanation I would have most likely done the work. But I would have liked the option to make that call."
After 1
 View 1
 Right Side View
Perfect Retrofit
After 2

+16

27 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Peter Levi Plumbing, Inc.
Peter Levi Plumbing, Inc.
4.9(
9
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Napa, CA and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Credit card accepted

We are a family-oriented company that has been committed to taking care of our team, customers and community since 1993. Our highly trained technicians are focused on providing the right options, to make sure you are focused on providing the right options, to make sure that you are 100% satisfied with every solution we deliver. Our goal is to give you peace of mind in knowing, that it comes to plumbing, heating and air needs - we'll always take care of it, because we are here to take care of you.

My jobs
My jobs
My jobs
My jobs
My jobs

+1

Response time2 days
11 neighbors recently requested a quote
Recommended by60%of homeowners
Showing 1-10 of 48
Water Softeners questions, answered by experts

Softener systems extend appliance life spans, improve skin and hair health, and reduce pipe buildup by removing minerals like calcium and magnesium.

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.

A water softener is a worthwhile investment if you live in an area with hard water. While hard water is safe to drink, it contains minerals like calcium and magnesium that can cause significant problems over time. These minerals build up inside pipes, reducing water flow and eventually corroding the plumbing system, which can lead to leaks and a shortened lifespan. Hard water also damages fixtures and appliances, potentially resulting in costly repairs. Additionally, it makes soaps and detergents less effective, meaning you'll use more product to get things clean. By installing a water softener, you can prevent these issues. The initial investment is often recouped through long-term savings, including lower energy bills, reduced appliance and plumbing maintenance, and spending less on soap and cleaning supplies. Other benefits include cleaner linens, dishes, and clothing, as well as softer water that is gentler on your skin and hair. In some areas, a water softener can also increase your home's value, making it a valuable long-term investment.

No. You should never directly drain a water softener into a sewer cleanout. This practice is illegal in many areas because it could allow raw sewage to get into your drinking water and make you seriously ill. Many places have codes requiring a specific seal, pipe, and a large air gap between a water softener and a sewage cleanout. Check out Florida's Plumbing Building Code as an example of what these restrictions might look like.

Selecting the right system depends on testing your water to understand the contaminants present and considering your household's water usage and specific needs, such as removing specific contaminants.

The Napa, CA homeowners’ guide to water softener services

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