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Best water softener pros near Darien, CT

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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

"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 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."
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+6

486 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

"They helped us troubleshoot the problem over the phone. It turns out we needed a new water filter. We really appreciated especially since it saved us lots of $$$$$$$$."
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

"1) Promptly called when task placed with Angi 2) Discussed problem and provided alternative diagnostics; provided rates 3) Scheduled work on my schedule 4) Team arrived earlier than scheduled 5) Finalized job needs, provided firm quote; authorized team to proceed 6) Efficiently completed job, did necessary tests to assure done right 7) Finalized transaction on app Everything was done well and efficiently. I could not have been more pleased working with the team from CT Radon and Well Water Solutions."
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%
38 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

"I decided to go with Cassidy because out of the 4-5 different companies I contacted, they were the first to respond in a timely manner and their dispatch fee was affordable ($79 vs >$100). The actual service they provided went well. They were on time, finished the whole project within a couple hours and were professional. However, I did remove a star from my rating because they do overprice everything. I was able to cut down my total cost by >$300 by just buying my own supplies (ex: water faucet, basket strainer, faucet aerator, etc.). They were going to charge me $125 for something I was able to get for $4 and fix on my own, which I thought was ridiculous. Overall, I would recommend because they made the whole process go smoothly but I would just be aware of their pricing and make sure they don't trip you off."
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 L.C. Schede & Sons, Inc.
L.C. Schede & Sons, Inc.
4.0(
294
)
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 1922

Free estimates

Emergency services offered

"Lou and his technicians were great. They provided timely, accurate quotes and explained everything about improving our hot water service and all of our options. The technicians came on time for all appointments and were incredibly helpful. They explained everything to my wife and I, and were very helpful. We would hire them again for any plumbing needs."
 $100,000 Kitchen
Master Bath/Spa
Children's Bath
Guest Bath
Response time6 hrs
17 neighbors recently requested a quote
Recommended by88%of homeowners
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

Because it’s been through the water cycle, evaporating and becoming slightly acidic thanks to dissolved carbon dioxide in the atmosphere, rainwater tends to be naturally soft compared to groundwater, which has just been in contact with limestone. However, the natural hardness level of water always depends on where you are and other factors.

No, a water descaler won't descale pipes. The charged water running through the pipes may very slowly dissolve mineral deposits and hold them inside the water, but it's a very gradual process. If your pipes do need descaling, it's much better to get a local plumber to descale your pipes.

Yes, a water softener can remove scale deposits. According to the U.S. Department of Energy, after you add a water softener to your home, “gradually the softer water will dissolve limescale scale deposits and remove the problem entirely.” Installing a water softener—or water descaler—will also help prevent new scale deposits from forming.

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.

There are many possibilities for why your shower’s water pressure is low. It might be a simple-to-fix issue like the water valves being partially turned off, a dirty showerhead or hose, leaks in the plumbing, or an old showerhead. However, low water pressure in the shower could also indicate a larger issue with your home’s plumbing system.

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.