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Top-Rated Water treatment pros in Berwick - Updated Nov 2026

Avatar for Randy Marquis Well and Pump
Randy Marquis Well and Pump
4.8(
48
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Berwick, ME and surrounding areas

Approved

In business since 1997

Free estimates

Emergency services offered

"Fantastic! We were in a bind when my tenant called with no water. I called Randy on a Saturday afternoon, Memorial Day weekend and within a couple of hours he replied that he would be there first thing in the morning...ON A SUNDAY!! Sure enough, he and his dad showed up around 8am, assessed the problem (old worn out well pump and leaking pressure tank) and by 9:15 had both units replaced and working with all new electrical line run from the well head to the pump. Fair price and unbelievable service! I couldn't recommend him more enthusiastically! I'll definitely be calling him for some new construction projects we have going."
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+7

20 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Maine Radon & Water Treatment
Maine Radon & Water Treatment
5.0(
9
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Berwick, ME and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

Maine Radon & Water Treatment is a trusted, locally owned company based in Windham, proudly serving surrounding communities throughout Maine. We specialize in comprehensive radon mitigation and water treatment solutions designed to keep your home safe, healthy, and up to code. With years of experience, we are committed to delivering top-quality workmanship, honest service, and lasting results. Our team takes pride in professionalism, integrity, and treating your home like our own. Whether you're dealing with radon concerns or water quality issues, we’re here to help—reliably and affordably. Contact us today to schedule your consultation.

Radon Installations
Radon Installations
Radon Installations
Radon Installations
Radon Installations

+32

Response time1 day
16 neighbors recently requested a quote
Recommended by33%of homeowners
Avatar for Aerus Water
Aerus Water
5.0(
8
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Berwick, ME and surrounding areas

Approved

In business since 1924

Free estimates

Warranties offered

"I am very pleased with the knowledge, professionalism and payment arrangements to install this system into my home. I was concerned with consumption and showering with my tap water. I no longer have to worry. For myself, family and friends, I know I’ve made the right choice with the right company."
59 neighbors recently requested a quote
Avatar for Summit View Water, Ltd.
Summit View Water, Ltd.
5.0(
2
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Berwick, ME and surrounding areas

Approved

In business since 2005

Free estimates

Credit card accepted

"They did a great job. Outstanding customer service. Communicated very well keeping me updated with all details and explained everything I needed to know about the system. The install went smoothly and the workmanship was very neat. When they completed the job, they cleaned up very well. I would definitely recommend them and actually have already to a friend."
Response time1 day
21 neighbors recently requested a quote
Recommended by100%of homeowners
Aqua-Max of Maine
4.4(
105
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Berwick, ME and surrounding areas

In business since 1994

Free estimates

Warranties offered

"We have an appointment and I could not be happier with their response to my inquiry. Pam is very professional and knew just what we have for equipment. I am looking forward to doing business each year with their company to keep our radon water treatment running well."
Response time1 day
Recommended by96%of homeowners
Avatar for Absolute Water System LLC
Absolute Water System LLC
4.7(
30
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Berwick, ME and surrounding areas

In business since 1981

Emergency services offered

Credit card accepted

"George and his team were extremely friendly and professional. This is a good group of people. Courteous and thoughtful, they were able to do a complete installation of both systems from scratch in about 6 hours.
The new radon remediation system (Bubble Up) has the added benefit of boosting the fixture pressure in the house to city level or better (60-75psi) as well as completely resolving the pH level of the water.
The cost was slightly lower than the other two quotes we received, partially due to the fact that Absolute offered a "multi-system" discount since two systems were going in at the same time.
If in your service area, I would highly recommend George Doumit of Absolute Water System.
"
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Recommended by96%of homeowners
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