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Top-Rated Water softener pros in Darien - 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 Darien, CT and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Very positive experience with Westfair Water Systems. Frank Fennell came out to my house to recommend a whole-house water softener system. Frank answered my numerous questions, spoke to me after hours to ease any concerns, and provided me with references to help with my due diligence. The installers were professional, respectful of my home, and efficient. They even came back a week later to check on the installation and perform a post-installation test to sample the water. We noticed the effects immediately and are so glad we chose Westfair and implemented the Kinetico system."
After
after
After
after
Before

+14

Response time10 hrs
29 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for H L Bowman
H L Bowman
4.6(
428
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or ServiceWell Pump - Repair or Service

Serving Darien, CT and surrounding areas

Approved (Corporate)

In business since 1946

Free estimates

Emergency services offered

"They were very fast to respond to my call and were able to send someone within two hours. The replacement of the hot water heater went well. For the water pipes they use copper crimp fittings instead of soldering so it will be interesting to see how that holds up over the years. My only concern is how they ran the gas line. They use Gastite CSST which is fine, but the CSST is run so it goes downward then back up and then downward again before it enters black pipe that has a moisture trap. It seems to me that if there is any moisture it will end up in the CSST instead of the trap. In addition, there is a pretty good bend in the CSST right before it goes into the trap section. Also, Teflon tape was used on the all the joints instead of joint compound. I think I will get someone from a different company to come in and take a look at it."
Additional Photos
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+6

481 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Eastern Water Development Co.
Eastern Water Development Co.
4.3(
64
)
Well Pump - Repair or Service

Serving Darien, CT and surrounding areas

Approved

In business since 1966

Free estimates

Emergency services offered

"While other companies spent years trying to figure out what was wrong with my system and after much money spent on â fixesâ , Eastern Water found a small piston dysfunction and the fix was simple and not expensive. I plan to switch to them for my routine maintenance. Additionally, they were responsive, efficient and reliable. The service person was very knowledgeable and explained everything to me."
Hydraulic Fracturing
Effects of Low pH
Casing extension
Casing extension
Casing extension

+6

Response time2 days
20 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Superior Water and Radon Systems, LLC
Superior Water and Radon Systems, LLC
4.6(
75
)
Well Pump - Repair or Service

Serving Darien, CT and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Tom did a great job fixing my water pressure issue. He back flushed our softener and holding tank, and re-pressurized the tank; all at an affordable price. He was just what we needed and I highly recommend him to anyone with water issues."
New Sump Pump Job.
Bubble Up Radon Water System
VIQUA ARROS 9 GPM Ultraviolet Light
VIQUA ARROS UV, Double Tank Water Softener, PH
NEW 119 Gallon WELL RITE TANK

+63

Response time11 hrs
Recommended by97%of homeowners
Avatar for CT Radon & Well Water Solutions
CT Radon & Well Water Solutions
4.7(
82
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or ServiceWell Pump - Repair or Service

Serving Darien, CT and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"I recently had the pleasure of working with CT Radon and Well Water Solutions, and I can't recommend them highly enough! From start to finish, they demonstrated professionalism that truly stands out. The team was timely, arriving exactly when they said they would, and they wasted no time in getting to work. Kevin, in particular, was fantastic. His great personality made the entire process not only efficient but also enjoyable. He took the time to explain everything clearly and answered all of my questions with patience and expertise. The work they completed exceeded my expectations, providing me with peace of mind regarding radon levels and well water quality. If you're in need of radon mitigation or well water solutions, look no further than CT Radon. They are a reliable choice that I would recommend to anyone in need of their services. Thank you again, Matt, for all your hard work!"
Radon Mitigation
water softening system
Working in well pit
Old pump vs new pump
Close up of old pump

+3

Response time8 hrs
Response rate93%
37 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 Darien, CT 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
Avatar for First String Plumbing, Heating & Cooling
First String Plumbing, Heating & Cooling
5.0(
10
)
Water Treatment & Purification System - Install or Replace

Serving Darien, CT and surrounding areas

Approved

In business since 1983

Free estimates

Emergency services offered

First String Plumbing, Heating & Cooling is built on over four decades of hands-on, master-level experience paired with modern equipment, straightforward pricing and a commitment to serving our neighbors near and far.\n\nWe believe every homeowner in Connecticut and New York deserves a team they can count on whenever they need help. When the lights are at their brightest and all eyes are on us, we will always do what is right and that commitment never fades.

Tankless Water Heater
Water Pipe Repair
Water Pipe Repair
Water Heater Install
16 neighbors recently requested a quote
Avatar for Housatonic Valley Well Pump Services LLC
Housatonic Valley Well Pump Services LLC
5.0(
5
)
Water Treatment & Purification System - Install or ReplaceWell Pump - Repair or ServiceWater Treatment & Purification System - Repair or Service

Serving Darien, CT and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"Ralph was our first call once we submitted what we needed. He was professional, happy to answer any questions and head right over to take a look for himself. He sent me a quote for review, and after getting similar prices from other providers we decided on HV Water because Ralph made my husband and I comfortable and as if he was doing this on his own house. The install day was spotless, both installers were professional, meticulous and thorough. Cannot recommend these guys enough. Thanks again for an amazing job."
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11 neighbors recently requested a quote
Recommended by100%of homeowners
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Water Softeners FAQs, answered by experts

Water softeners have many benefits. The most important one is converting previously hard water—water with too many minerals—to more usable, easier water. When we say easier water, we mean water that’s easier to digest, less harsh on skin and clothes, and builds up less in the water system. Softer water may lead to lower energy costs and will extend the lifespan of all appliances that use water.

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.

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.

Most experts agree there’s not much difference health-wise between hard water versus soft water. That said, hard water is more likely to cause skin dryness and issues that go along with it, like an itchy or flaky scalp. Hard water can also decrease the life span of your household appliances and make it more difficult for soap to do its job.

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.

The Darien, CT homeowners’ guide to water softener services

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