Top-rated water treatment & purification system repair or service pros.

Get matched with top water treatment & purification system repair or service pros in Portsmouth, 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.

Find Water treatment & purification system repair or service pros in Portsmouth

Avatar for Maine's Best Water Treatment
Maine's Best Water Treatment
4.9(
229
)

Serving Portsmouth, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Warranties offered

"So glad I was able contract Maineâ s Best Water Treatment! I live in a pretty remote location in Maine where Iâ ve had to perform the majority of my upgrades and services myself. The owner/tech Brad and his assistant meticulously installed my water purification system in minimal time. Brad explained the complete system and required maintenance. AAA+ satisfied customer!ð ð »"
Iron Gate
4" X 10" Big Blue sediment filter
Point of use reverse osmosis system
Acid neutralizer
Repco AquaBubble Water Softener

+2

Response time9 hrs
253 neighbors recently requested a quote
Recommended by94%of homeowners
Request Quote
Avatar for SECONDWIND WATER SYSTEMS, INC
SECONDWIND WATER SYSTEMS, INC
4.9(
36
)

Serving Portsmouth, NH and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"I highly recommend SecondWind Water Systems. I will only call them for service and testing of our well water. Their rates are competitive. Jesse Gagnon is a very knowledgeable and professional representative. He is responsive and punctual and most importantly, I feel he is honest and trustworthy. For several issues, he has steered us in the right direction for services and saved us lots of money! Call SecondWind first!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Response time1 day
18 neighbors recently requested a quote
Recommended by97%of homeowners
Request Quote
Avatar for H2O Care Inc
H2O Care Inc
4.8(
43
)

Serving Portsmouth, NH and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"We have used H2O care since we bought our home a few years ago. We recently had an emergency situation and needed our filtration system replaced. They were super responsive, very knowledgeable and the system was reasonably priced. They consistently exceed our expectations- We highly recommend H20 Care!"
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
36 neighbors recently requested a quote
Recommended by93%of homeowners
Request Quote
Avatar for Ethical Home Pro LLC
Ethical Home Pro LLC
5.0(
25
)

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"All of the help is the same way and had great customer service! Everyone paid attention to what they were supposed to do and kept the house cleans. They were really great!"
water softener and pressure tank
Water Treatment
Response time12 hrs
Response rate87%
3 neighbors recently requested a quote
Request Quote
Avatar for US Water Consultants, Inc.
US Water Consultants, Inc.
4.9(
83
)

Serving Portsmouth, NH and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"The Radon Mitigation System was installed as requested, in a timely manner and everything was cleaned up before they left. The equipment they had installed was thoroughly explained and any extra questions I had were answered. Would recommend them to anyone looking for a system like this."
Response time1 day
25 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
Avatar for H2O in the 603 Water Treatment, LLC
H2O in the 603 Water Treatment, LLC
5.0(
5
)

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Highly recommend his company for any and all water treatment services."
Local Installation
New Construction
Water Softener
Response time4 hrs
27 neighbors recently requested a quote
Recommended by60%of homeowners
Request Quote
Avatar for Heritage Home Service
Heritage Home Service
4.5(
986
)

Serving Portsmouth, NH and surrounding areas

Approved (Corporate)

In business since 1988

Emergency services offered

Warranties offered

"Replacement was urged by technician after routine inspection of heating system. Water heater wasn't part of the service but, tech checked it anyway. Nice enough of him to do that. After showing me his concern (legitimate) I asked for a quote to replace. Outrageously expensive considering cost of materials. Later learned techs are incentivized to sell service and parts. Dropped them as my go to plumbing and heating guys. Water heater still working 3years after urgent replacement was quoted"
Golf Tournament
Water quality team
HVAC tech
Electrical team
Bryan, electrician

+24

187 neighbors recently requested a quote
Recommended by91%of homeowners
Request Quote
FAQs for water treatment & purification system repair or service projects in Portsmouth, NH

If your water softener is over 10 years old or if repair costs approach the price of a new unit, it might be time to replace it. Most water softeners last between 10 and 15 years. Replacing an aging unit can improve your water quality and help you avoid frequent repair costs. For a newer system with minor issues, repairing may be the best option. Consider the age and condition of your system to decide what's most cost-effective.

Water treatment systems remain dependable for 10 to 20 years with proper maintenance and care. A well-maintained system secures full performance by following a scheduled upkeep plan and professional inspections. Consistent maintenance guarantees continuous water purification, ensuring that the system operates at its peak efficiency and delivers high‑quality water throughout its lifespan.

Faulty water softeners exhibit clear symptoms that signal the need for immediate attention. Noticeable mineral build-up around faucets, discolored water, dry or itchy skin following a shower, and altered laundry texture indicate that the system is underperforming. Recognizing these issues early and addressing them promptly prevents further damage and maintains optimal water quality. Early intervention ensures that your water system continues to operate reliably and efficiently.

The Portsmouth, NH homeowners’ guide to water treatment & purification system repair or services

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

See all articles