Top-rated water treatment pros.

Get matched with top water treatment pros in East Derry, NH

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Top-Rated Water treatment pros in East Derry - Updated Nov 2026

Avatar for H2O Care Inc
H2O Care Inc
4.7(
51
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving East Derry, NH and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"Ryan came to house and reviewed our needs and what was available. Everything was explained to us so we understood what was to be installed and what what future services we would need (filter changes and when to expect the need to change filters). The filter system was installed the next week and was done in a professional manner. We would definitely recommend them for water filtration needs."
Whole House Reverse Osmosis Desalination System
High efficiency water softener with sediment and carbon filtration to correct hard water, manganese and sediment build-up as well as chlorine taste & odor on this public water supply.
The water from this private well revealed high radon and iron in the lab water test.  This system eliminated these water quality issues.
Additional Photos
Additional Photos

+22

Response time5 days
42 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for N & N Water Solutions
N & N Water Solutions
5.0(
7
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving East Derry, NH and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"Everyone I encountered with through NNN water solutions was super helpful and extremely knowledgeable. They were very patient with me as I was very nervous to comit to purchasing but they answered any question or concern I had. Installation was quick the guy was done within a few hrs. I normally don’t bother writing reviews but I’m so excited to have my new water system! I have really bad eczema and since having the new system my skin is so much less irritated. It is amazing the difference clean water will do"
10 neighbors recently requested a quote
Avatar for Heritage Home Service
Heritage Home Service
4.1(
1,337
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving East Derry, NH and surrounding areas

Approved (Corporate)

In business since 1988

Free estimates

Emergency services offered

"I asked for a rep to come to give quotes for repair or replacement of my gas boiler. Before he came the old boiler failed, and Heritage was able to quickly install a new one so that we without heat and hot water for only a short time."
Grand opening of new location
Team breakfast
Events
Billy working hard
Golf tournament

+29

Response time5 hrs
351 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for NORTH EASTERN INDUSTRIES
NORTH EASTERN INDUSTRIES
New to Angi
Water Treatment & Purification System - Install or Replace

Serving East Derry, NH and surrounding areas

Approved

In business since 1991

Free estimates

Warranties offered

AqualiteUS is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 30 years of hands on experience to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today! \n

Water Treatment System
Water Treatment System
Water Treatment System
Water Treatment System
Water Treatment System

+5

Response time3 days
Avatar for SECONDWIND WATER SYSTEMS, INC
SECONDWIND WATER SYSTEMS, INC
4.8(
42
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving East Derry, NH and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"Secondwind Water Systems was excellent from start to finish. The process began about three months ago with Jesse, a Certified Water Specialist, who thoroughly tested our water and designed a comprehensive system. He was patient, informative, and never pushy while I took time to decide. Installation was completed this past Monday and included sediment filtration, a water softener, radon and PFAS removal, and reverse osmosis to our drinking water and refrigerator ice maker. Patrick, the senior technician, and his assistant Ronald were professional, knowledgeable, and did a very clean, well-organized basement install. Patrick took the time to explain how the system works and what maintenance is required. Christine in the office was friendly and extremely helpful with payment and organizing all documentation needed for state reimbursement related to the PFAS system. Highly recommend Secondwind Water Systems for quality work and excellent customer service."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Response time1 day
Recommended by97%of homeowners
Showing 1-10 of 39

The East Derry, NH homeowners’ guide to water treatment services

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