Better Water
Starts Here

Full-service water treatment company with certified water treatment specialists and installers servicing NH, Northern MA, and Southern ME

Free Water Test

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 Specialists

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 more certified water specialists and installers than all of NH combined.

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

Common Water Problems

Contact Us

Mark Miville

May 11, 2023.

Great company and great service! Had a Kinetico non-electric water system installed recently and it's worth every penny. Now we have endless crystal clear soft water.

Larry Kellogg

May 10, 2023.

Dave the Technician was great. Explained how everything works and what he was doing. Overall a great visit.

Eric Kilens

May 10, 2023.

I worked with DJ on getting my existing water filtration system that wasn't installed by Secondwind serviced and replumbed. He was very knowledgeable and when he didn't know the answer to a question he made sure to ask the appropriate person. He was also super responsive so that was nice. Cam was the one who came out and performed the work. He was fantastic! He took the time to talk with me about the work he was going to do and answered any of my questions and concerns. He was courteous and respectful of our home and the quality of his work really shows. Before leaving he made sure that all was right and in working order. I had a great experience working with both DJ and Cam. I would highly recommend Secondwind for your water filtration needs!!