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    Average homeowner rating
  • Verified reviews icon30
    Verified water softener services reviews

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

Avatar for Westfair Water Systems, Inc.
Westfair Water Systems, Inc.
4.8(
46
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Katonah, NY and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"They were great to work with and more competitively priced than culligan. We were selling the home the water system was going into and needed to get the work done quickly before closing to address issues on the inspection report. They were great to work with and very responsive. We ultimately had installed a basic water softener, UV system and new sediment filter housing."
After
after
After
after
Before

+14

Response time10 hrs
29 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Old Faithful Pump Co
Old Faithful Pump Co
4.9(
42
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Katonah, NY and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Excellent experience during a bad situation. We discovered our well head was leaking on a Sunday afternoon. Joe, the owner, came out the same day to assess the problem and told us how to avoid burning out the water pump. Joe and his crew came out the next day. Repaired the problem, with no surprises. He took the time to explain what was wrong and what he needed to do. Very professional, courteous, and knowledgeable. Everyone at Old Faithful Pump Co is friendly and it was pleasure doing business with them. We recommend Old Faithful Pump Company to everyone."
Additional Photos
Vernin Proof Well Head
Response time7 hrs
4 neighbors recently requested a quote
Recommended by100%of homeowners
Clear Water Pump & Water Conditioning, LLC
4.8(
31
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or ServiceWell Pump - Repair or Service

Serving Katonah, NY and surrounding areas

Approved

In business since 1997

Free estimates

Customers say: Quick response

"John was great. He came and installed the water softener while we were without power. Then he came back when the power came on to show us how to use it. He was the only person that followed up after we got a quote."
Response time11 hrs
Recommended by100%of homeowners
Noble Plumbing & Heating, LLC
4.4(
31
)
Water Treatment & Purification System - Install or Replace

Serving Katonah, NY and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"They gave me a very good estimate to replace my hot water heater. We scheduled a time, and they showed up right on time, removed the old one, installed the new one without any leftover mess. The final cost was exactly as stated, with no hidden or additional fees. I was very happy with the quality of their work, and would recommend them to anyone."
Response time4 hrs
Recommended by92%of homeowners
Wilson Plumbing and Heating
4.5(
59
)
Water Treatment & Purification System - Install or Replace

Serving Katonah, NY and surrounding areas

Approved

In business since 2010

Customers say: Quality work

"My water heater was found to be leaking Friday afternoon. Wilson P&H came out that afternoon, verified what I knew, and was back Saturday morning installing a new water heater. Price was what I expected, service was fast and professional. Highly recommend."
Response time4 hrs
Response rate91%
2 neighbors recently requested a quote
Avatar for Cassidy Plumbing and Heating, Inc
Cassidy Plumbing and Heating, Inc
4.5(
31
)
Well Pump - Repair or Service

Serving Katonah, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1992

Emergency services offered

Warranties offered

"Anji recommended four plumbers. Cassidy was the first to respond on Friday afternoon. One other plumber responded but I could not understand his heavy accent, and he asked me if I wanted him to replace the whole burner assembly. That made no sense to me and I questioned him about it. Suddenly he became "too busy" and hung up the phone. Another plumber didn't respond until Monday morning. Too late. The fourth plumber never responded at all. Cassidy asked if it was an emergency or could wait until Monday. I said Monday. and asked what time? I did not get an answer on Friday. Around 8:30P I called and got an answering service which told me that I wouldn't get a response until Monday because their office closed at 8:00P. I had asked about what time on Monday before 6:00P George arrived Monday morning. He was friendly. He knew what he was doing. He replaced the thermocouple. All work was done neatly and professionally. We have hot water again. I'd use Cassidy again."
Heating System
Heating System
Plumbing
The Team
Navien Water Heater

+3

Response time2 days
Response rate100%
8 neighbors recently requested a quote
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Water Softeners FAQs, answered by experts

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.

Hard water is not considered unhealthy and is safe to drink, cook with, and bathe in. It doesn't pose a risk to your physical health and can even help you get enough essential minerals like calcium in your diet. However, it can negatively affect skin and hair. Using hard water for washing can contribute to dry skin, an itchy scalp, and may worsen conditions like eczema by altering the pH balance. Additionally, some people do not like the taste of hard water.

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

Some shower water softeners are effective, but this isn’t always the case. Most shower filters only filter out chlorine, not hard minerals like calcium. Other shower filters can't handle the demand in homes with very hard water. It's also important to change the filters on your shower filters. Failure to regularly swap out old filters will make the filter ineffective over time. 

The Katonah, NY homeowners’ guide to water softener services

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