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Top-Rated Water treatment pros in Hauppauge - 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 Hauppauge, NY and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"We used Simply Pur for a whole house system as well as a kitchen RO system for drinking water. Vinny and his team were absolutely great. They were professional, efficient, clean, and trustworthy. Most importantly, our water feels and tastes delicious! Thanks again!"
Pentair Fresh Point 575M
Pentair Fresh Point 575M
Farmingville Home
East Williston Home
East Chester Home

+94

Response time1 day
Response rate89%
29 neighbors recently requested a quote
Avatar for HealtheHabitats
HealtheHabitats
4.9(
50
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Hauppauge, NY and surrounding areas

Approved

In business since 2016

Credit card accepted

Customers say: Quick response

"This company gave an honest opinion and was right. Peace of mind is something you can’t put a price on. Marie was great to deal with and gave me and my wife some very valuable info. Thank you healthehabitats"
Response time6 hrs
5 neighbors recently requested a quote
Recommended by95%of homeowners
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 Hauppauge, NY and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"I am now on their maintenance program. I pay a reasonable yearly fee and they come to me like clockwork. I am called a day or two before. They give me a 3 hour time frame and they show up right on time. It takes maybe 5 minutes for them to add the salt fix the timer test the water. The last person that came was Joey who is friendly, courteous and knowledgeable. So are all their other employee. They are great to work with."
Bypass
Whole House Water Filtration System with UV Filter
Reverse Osmosis
Reionator Pro Ultra
Reionator Pro Ultra

+6

Response time2 days
8 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Leaf Home Water Solutions
Leaf Home Water Solutions
4.2(
202
)
Water Treatment & Purification System - Install or Replace

Serving Hauppauge, NY and surrounding areas

Approved (Corporate)

In business since 2020

Free estimates

Warranties offered

"Abdiel was super to work with. He really knew his stuff and explained so many things to me that I did not know before. He gave me such a great deal that i couldn't say no. The system is perfect and the water delightful. Lucian installed the system. Couldn't have asked for anyone more gentlemanly. Very meticulous about his work. Seems to be a great company all around."
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

141 neighbors recently requested a quote
Recommended by71%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 Hauppauge, NY and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"I had the equipment replaced, a brand new, super high efficiency, fancy, lovely stuff. It's a central air system, and it's Lennox equipment. It's high efficiency. You can get it for less than that, but you're not gonna get the high efficiency quiet and all that kind of stuff. I had received other quotes which were like more money for the same system. I have been using them since 1986. No complaints. They do their thing, and I can't fault them. I have a service contract with them for this."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Response time3 days
7 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Benitez Remodeling
Benitez Remodeling
4.7(
13
)
Water Treatment & Purification System - Install or Replace

Serving Hauppauge, NY and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"We found them to be very pleasant, easy going and accommodating; almost like dealing with family. They did nice work, listened to our concerns and tried to do whatever was necessary to make us happy. We recommend being specific about details for your project, communicating exactly what you want. Since we had never done a bathroom renovation before we found that certain things were done by asking our opinion without the suggestion of their expertise. Our only negative experience was the late nights they stayed working to get the project finished and the damage done to our front deck as a result of cutting tile outside. They did come back very willingly and tried cleaning the deck but unfortunately its still not totally clean. Since we will eventually be replacing our deck we just let it go. Ultimately they were a good, respectable reliable company."
Project
Response time3 days
8 neighbors recently requested a quote
Recommended by75%of homeowners
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