EXCELLENT Based on 1097 reviews Posted on Google Gena SinibaldiFebruary 26, 2026Trustindex verifies that the original source of the review is Google. Greg was friendly, knowledgeable and efficient. Thanks to Secondwind Water as always and also to Abbie for great customer service!Posted on Google Matt SistoFebruary 26, 2026Trustindex verifies that the original source of the review is Google. Technician took the time to explain how my entire system worked so I would finally understand. I’ve had several technicians come out, never had a bad experience, but the guy they sent yesterday actually seemed to care about his job deeply. I’m sure the fact that he takes the extra time frustrates the main office, but they should give this guy a raise. Forgot his name but he’s 6’3”. 😊Posted on Google Kenny HartungFebruary 24, 2026Trustindex verifies that the original source of the review is Google. Technician Greg was professional, knowledgeable, and thorough. Great company to deal with.Posted on Google Mary BrownFebruary 19, 2026Trustindex verifies that the original source of the review is Google. Greg was great! Very nice, professional, and knew his job. Left us easy to understand “homework “ to ensure all of our water resources are safe and clean. Highly recommend Greg and Second Wind Water!Posted on Google Lori SaleskiFebruary 14, 2026Trustindex verifies that the original source of the review is Google. Great experience with Secondwind, we love their product! They arrived promptly for our service appointment, we're extremely helpful and answered any questions we had. We have had their products for 25+ years, and highly recommend them!Posted on Google Lindsay MarcouxFebruary 14, 2026Trustindex verifies that the original source of the review is Google. Patrick did a great job and was on time. Exactly what I expect from a technician from Second Wind Water Systems.Posted on Google Renee PassalacquaFebruary 12, 2026Trustindex verifies that the original source of the review is Google. Greg was very informative during our first yearly check of our RO water system and answered any questions I had. He was professional and went above and beyond. I've recommended this company to others, and will continue to do so!Posted on Google Mary Kate BartleyFebruary 10, 2026Trustindex verifies that the original source of the review is Google. I received a call telling me that the technician would late. Greatly appreciated that, I hate waiting. Greg was a little early, also fine. Everything worked out well and he gave some tips for in the future protecting the pipes. Very clear with directions.Posted on Google Robert MartelFebruary 10, 2026Trustindex verifies that the original source of the review is Google. Mike provided us with great service updating our RO water system, Secondwind definitely keeps us water healthy!Posted on Google Jane TuftsFebruary 5, 2026Trustindex verifies that the original source of the review is Google. The technician (Greg) let me know he was running ahead of schedule, which worked with my schedule even better than the originally scheduled time! He did the maintenance thoroughly and quickly and explained the post-sanitizing process very clearly.
Better Water
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Water Treatment Systems in New Hampshire: Solutions for Homes & Businesses
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Home Water Solutions
When you turn on your faucet, bathe your child, water your lawn, or flush your toilet, you want to know that your water is safe and clean.
Commercial Water Solutions
You may not realize the many ways water affects the work you do each day. Treated water extends the life of your appliances and equipment.
Public Water Solutions
Treatment design, contract operator services, water treatment service, and asset management. We know water so you don't have to.
Why Choose Secondwind
When you choose Secondwind, you will work with honest people who take a great deal of pride in their work. We only hire people that we would feel comfortable coming into our own home or business.
Certified Water Professionals
Our goal has always been to be the best. A critical part of achieving that goal is acquiring the knowledge and credentials that display a mastery of our craft. Secondwind employs the most certified water professionals in one location in the country.
Industry Leading Warranty
Water treatment systems installed by Secondwind carry a specific manufacturer’s parts warranty, ranging from one to ten years depending upon the component. In addition, we cover equipment without a manufacturer’s warranty with our own warranty.
Lifetime Relationship Promise
We will provide long term value through contact, accessibility and service geared to the system longevity to assure that you love your system for years to come. We deliver what we promised, or your money back. Your water quality promise delivered.
Local & Family Operated
We opened our doors in 1989, and have had the pleasure of serving over 10,000 residential and commercial customers, and managing 130 small public water supplies. We designed unique treatment for each and every one.
Decades of Experience
With our commitment to exceptional customer service and technical expertise we specialize in and having decades of experience treating New Hampshire’s toughest water quality related health issues. We’re your regional water experts.
Backed By Kinetico
We are New Hampshire’s only independent authorized Kinetico dealer. Since 1970, Kinetico water experts have designed products engineered to be the most efficient and effective water treatment systems in the world.
Common Water Problems
Your regional water experts for water quality issues in NH

