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

Avatar for Simply PUR Water Filtration
Simply PUR Water Filtration
5.0(
39
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Smithtown, NY and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Simply PUR was a pleasure to work with from start to finish. They were personable and provided us with a lot of information and answered all of our questions. The installation process went smooth and they came back to check our water filtration systems and retested my water. They were honest and sincere and most importantly very reliable and professional the whole way through. Its always a pleasure dealing with Simply PUR. I highly recommend using this company and will continue to refer my friends and family to use them."
Pentair Fresh Point 575M
Pentair Fresh Point 575M
Farmingville Home
East Williston Home
East Chester Home

+94

Response time1 day
Response rate89%
27 neighbors recently requested a quote
Avatar for Long lsland Clean Water Service, Inc.
Long lsland Clean Water Service, Inc.
4.6(
67
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Smithtown, NY and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"From the sales representative, Anthony, to the owners Mark and Madelyn, our family's experience with this company was impeccable. They showed such care and compassion once they found out that the Long Island's hard water in our home caused our 5 month old skin to breakout so badly. She was in such distress and they went above and beyond the call of duty to ensure that the water system was installed ASAP. The installers were so considerate that they even removed their shoes while working in our kitchen, without us asking them to do so. They worked efficiently and were very thorough. Jennifer who handles the office matters, was a pleasure to work with. As she rightfully texted me, It takes a village to raise a child and we truly are blessed to be a part of this water family. We rewashed the baby's clothes and you can immediately feel the difference and the natural products that can only be ordered through the company will save us tons of money from household cleaning supplies to bodywash everything is all natural. I have already convinced my pastors to have the system installed in their new long island home and will continue to recommend this company to everyone I can. Worth every single penny!"
Bypass
Whole House Water Filtration System with UV Filter
Reverse Osmosis
Reionator Pro Ultra
Reionator Pro Ultra

+6

Response time2 days
11 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Leaf Home Water Solutions
Leaf Home Water Solutions
4.2(
201
)
Water Treatment & Purification System - Install or Replace

Serving Smithtown, NY and surrounding areas

Approved (Corporate)

In business since 2020

Free estimates

Warranties offered

"The sales rep took several water testsâ ¦ The sales rep took several water tests and showed me the results. She told me that I needed more than just a water softener. I also needed a system to address the rust and iron in my well water. I did not want to spend a fortune but the sales lady was pretty convincing. The price was good and the workmanship was excellent. My water is clean again ! Now I can tackle the original problem. My toilet has bad rust stains. I will either get it clean, or replace it. I could not do this until the water was fixed."
Leaf Home Water Solutions
Leaf Home Water Solutions
Will filtered water help me save money?
What does filtered water taste like?
How do I know what contaminants are in my water?

+44

166 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for HealtheHabitats
HealtheHabitats
4.9(
50
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Smithtown, NY and surrounding areas

Approved

In business since 2016

Credit card accepted

Customers say: Quick response

"Michael and his crew are very professional, efficient, courteous and they go extra mile on the post-contruction cleaning project at my house. Great people and wonderful customer service. They really care about doing a thorough, spotless and perfect job. Thank you Michael. Great job!!!"
Response time6 hrs
5 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Excellent Plumbing & Heating
Excellent Plumbing & Heating
4.9(
28
)
Water Treatment & Purification System - Install or Replace

Serving Smithtown, NY and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Joe was prompt and came to check the issue on the same day I called . He did a neat job replacing our water boiler for a fair price. He was very professional and easy to work with. He also followed up on the job to ensure we had hot water. I would highly recommend him."
Oil to Gas Conversion
Response time3 hrs
Response rate99%
Recommended by42%of homeowners
Avatar for All Weather Heating & Cooling
All Weather Heating & Cooling
4.5(
70
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Smithtown, NY and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"Called because heating system would not start up.  The company came a short time later and found out the problem was a simple fix which involved adjusting the angle of a waterline.  I highly recommend because the service was great and I had a very good overall vibe throughout the whole process.
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Response time3 days
7 neighbors recently requested a quote
Recommended by94%of homeowners
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Water Softeners FAQs, answered by experts

A good hardness level for drinking water can vary based on personal preferences, but an ideal level is 3.5 to 7 GPG. This means your water isn’t soft or hard. However, some people prefer the “fresh” taste from the minerals in hard water, while others like the smoother, “slippery” texture of soft water.

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

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.

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 single shower consumes an average of over 17 gallons, while brushing your teeth with the water running uses up to four unnecessary gallons. Watering the lawn spreads hundreds of gallons of water across the yard each time. Limiting water usage in these areas can significantly cut down your water bill.

The Smithtown, NY homeowners’ guide to water softener services

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