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Water treatment & purification system installers and replacers in Alton Bay

Avatar for Maine Radon & Water Treatment
Maine Radon & Water Treatment
243 Roosevelt Trail
5.00(
3
)
Approved Pro
Maine Radon & Water Treatment
243 Roosevelt Trail
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

Maine Radon & Environmental s a well established company in Windham, which serves the surrounding communities too. We offer the best in customer service as well as professionalism. We pride ourselves on integrity so our work speaks for itself. Call us for your next job.

"Super easy to work with and clear with what to expect."

Nicole M on October 2024

Maine Radon & Environmental s a well established company in Windham, which serves the surrounding communities too. We offer the best in customer service as well as professionalism. We pride ourselves on integrity so our work speaks for itself. Call us for your next job.

"Super easy to work with and clear with what to expect."

Nicole M on October 2024


Avatar for Maine's Best Water Treatment
Maine's Best Water Treatment
674 Richmond Road
4.94(
221
)
Approved Pro
Maine's Best Water Treatment
674 Richmond Road
4.94(
221
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
77 local quotes requested

Do you have Iron, manganese, sulfur, arsenic, uranium or just hard water give us a call. Our customer service is our main priority, we are here to help you. We have many years of experience to give you confidence that we are your number one choice for your next water treatment purification system. Call us today and we look forward to your future business! We keep our prices low so everyone can afford healthy clean water. We are all about community and family. It will not cost you a fortune for healthy water if you give us a call. We also do no interest short term payment plans! There is no reason not to drink clean healthy water.

"I was looking to have a new water filter system installed for my well at my lake house and found Maines Best Water Treatment on Google. Brad quickly responded, then I emailed him my most recent water test results. He recommended the UV system, gave me a price and scheduled me right in. Brad and his helper showed up as scheduled, ontime and clean appearance. They quickly installed my new water filter system, cleaned up after themselves and I was conveniently able to pay the invoice on the spot with Brads ipad tablet payment system. The invoice was exactly as quoted. I will also take advantage of his annual maintenance plan. Professional and affordable. Highly recommended. Also rapid follow up with new clean water test and answered my winterization questions. Knowledgeable."

Chris D on June 2025

Do you have Iron, manganese, sulfur, arsenic, uranium or just hard water give us a call. Our customer service is our main priority, we are here to help you. We have many years of experience to give you confidence that we are your number one choice for your next water treatment purification system. Call us today and we look forward to your future business! We keep our prices low so everyone can afford healthy clean water. We are all about community and family. It will not cost you a fortune for healthy water if you give us a call. We also do no interest short term payment plans! There is no reason not to drink clean healthy water.

"I was looking to have a new water filter system installed for my well at my lake house and found Maines Best Water Treatment on Google. Brad quickly responded, then I emailed him my most recent water test results. He recommended the UV system, gave me a price and scheduled me right in. Brad and his helper showed up as scheduled, ontime and clean appearance. They quickly installed my new water filter system, cleaned up after themselves and I was conveniently able to pay the invoice on the spot with Brads ipad tablet payment system. The invoice was exactly as quoted. I will also take advantage of his annual maintenance plan. Professional and affordable. Highly recommended. Also rapid follow up with new clean water test and answered my winterization questions. Knowledgeable."

Chris D on June 2025


Absolute Water System, LLC
100 Shirking Rd
4.79(
52
)
Approved Pro
Absolute Water System, LLC
100 Shirking Rd
4.79(
52
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
44 years of experience

Absolute Water System, LLC, has been a leader in water purification for residential, commercial and drinking water systems since 1981. We proudly serve MA, NH and southern ME. Call us today!

"A little confusion upfront - they were intent on selling a water softing system. They did install the filter I wanted and the install person was very competent and efficient."

Charles R on January 2023

Absolute Water System, LLC, has been a leader in water purification for residential, commercial and drinking water systems since 1981. We proudly serve MA, NH and southern ME. Call us today!

"A little confusion upfront - they were intent on selling a water softing system. They did install the filter I wanted and the install person was very competent and efficient."

Charles R on January 2023


Avatar for H2O in the 603 Water Treatment, LLC
H2O in the 603 Water Treatment, LLC
1 Hardy Rd #189
5.00(
5
)
Approved Pro
H2O in the 603 Water Treatment, LLC
1 Hardy Rd #189
5.00(
5
)
Approved Pro
Customers say: True professional
14 local quotes requested
3 years of experience

Locally owned and operated water treatment, filtration, and purification company. H2Ointhe603 is dedicated to providing exceptional service, superior products, and innovative solutions to ensure that our clients have access to the best possible water treatment options; working tirelessly to develop and implement innovative water treatment solutions that are tailored to meet the unique needs of each of our customers' home or place of business. Whether you're looking for a simple water filtration system for your home or a complex water treatment solution for your business, we are here to help. We take pride in our work and are committed to providing our customers with exceptional service and support every step of the way. TREAT YOUR WATER LIKE YOUR HEALTH DEPENDS ON IT!

"Installed water filtration system and softener, was very helpful and explained everything clearly with transparent pricing."

Darrel B on April 2025

Locally owned and operated water treatment, filtration, and purification company. H2Ointhe603 is dedicated to providing exceptional service, superior products, and innovative solutions to ensure that our clients have access to the best possible water treatment options; working tirelessly to develop and implement innovative water treatment solutions that are tailored to meet the unique needs of each of our customers' home or place of business. Whether you're looking for a simple water filtration system for your home or a complex water treatment solution for your business, we are here to help. We take pride in our work and are committed to providing our customers with exceptional service and support every step of the way. TREAT YOUR WATER LIKE YOUR HEALTH DEPENDS ON IT!

"Installed water filtration system and softener, was very helpful and explained everything clearly with transparent pricing."

Darrel B on April 2025


Summit View Water, LTD.
PO BOX 14
5.00(
2
)
Approved Pro
Summit View Water, LTD.
PO BOX 14
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 local quotes requested

Summit View Water 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 10 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!

"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."

David G on January 2021

Summit View Water 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 10 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!

"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."

David G on January 2021


Avatar for Ardito & Sons, LLC
Ardito & Sons, LLC
P.O. Box 17
5.00(
4
)
Approved Pro
Ardito & Sons, LLC
P.O. Box 17
5.00(
4
)
Approved Pro
1 years of experience
Free onsite estimate

Ardito & Sons is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. We also do not work on Town Water Systems. Only Well Systems We offer a Veteran Discount.

"Richard called me this morning after I left a message last night. He was here right at the promised time, did a very clear estimate of what needed to be done, and gave me a complete estimate for the total job. He had brought a new well bladder tank with him , the perfect replacement size. He worked very efficiently and took the extra time to tell me exactly what he was doing and how everything should work when completed. At no extra charge, he tested the water twice and again explained everything and answered all of my questions clearly and completely. At no time did I feel that he was rushing through the job just to get it done and move on to the next customer. I've never hired anyone before thru Angie's, but if Richard is the type of person that they recommend, I would certainly hire someone again. I cannot speak highly enough for Richard Ardito's work. He was here and the new tank was completely installed in 3 hours. Will definitely recommend him to any friends. 5 STAR + BERNIE "

Bernie D on July 2025

Ardito & Sons is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. We also do not work on Town Water Systems. Only Well Systems We offer a Veteran Discount.

"Richard called me this morning after I left a message last night. He was here right at the promised time, did a very clear estimate of what needed to be done, and gave me a complete estimate for the total job. He had brought a new well bladder tank with him , the perfect replacement size. He worked very efficiently and took the extra time to tell me exactly what he was doing and how everything should work when completed. At no extra charge, he tested the water twice and again explained everything and answered all of my questions clearly and completely. At no time did I feel that he was rushing through the job just to get it done and move on to the next customer. I've never hired anyone before thru Angie's, but if Richard is the type of person that they recommend, I would certainly hire someone again. I cannot speak highly enough for Richard Ardito's work. He was here and the new tank was completely installed in 3 hours. Will definitely recommend him to any friends. 5 STAR + BERNIE "

Bernie D on July 2025


Avatar for US Water Consultants, Inc.
US Water Consultants, Inc.
44 North Lowell Road
4.86(
83
)
Approved Pro
US Water Consultants, Inc.
44 North Lowell Road
4.86(
83
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
27 years of experience

US Water Consultants, Inc., is one of the most comprehensive water purification and radon gas abatement companies in the great state of New Hampshire. Not only do we service New Hampshire, but we are also servicing a good portion of Massachusetts. Our qualified professional staff are very skilled in the services of radon gas abatement and water treatment and purification. If your families health is of the most importance, than look no further than US Water Consultants, Inc. For your consultation feel free to contact us today!

"Done quickly"

jonathan f on September 2024

US Water Consultants, Inc., is one of the most comprehensive water purification and radon gas abatement companies in the great state of New Hampshire. Not only do we service New Hampshire, but we are also servicing a good portion of Massachusetts. Our qualified professional staff are very skilled in the services of radon gas abatement and water treatment and purification. If your families health is of the most importance, than look no further than US Water Consultants, Inc. For your consultation feel free to contact us today!

"Done quickly"

jonathan f on September 2024


Avatar for SECONDWIND WATER SYSTEMS, INC
SECONDWIND WATER SYSTEMS, INC
735 E Industrial Park Dr
4.81(
37
)
Approved Pro
SECONDWIND WATER SYSTEMS, INC
735 E Industrial Park Dr
4.81(
37
)
Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
73 local quotes requested

At Secondwind Water Systems, we specialize in customized water treatment solutions for homes and businesses across New Hampshire. Whether you're dealing with Hard Water, PFAS, Arsenic, Odors, or other water quality issues, we provide testing, diagnosis, and system installation tailored to your unique water chemistry. What sets us apart? We have more certified water professionals than any other company in New Hampshire—ensuring every recommendation we make is backed by deep technical expertise. Our team is dedicated to delivering dependable, high-quality service with solutions that truly work. We stand behind our work with exceptional warranties, ongoing support, and a commitment to doing what’s right for our customers. From softeners and filtration systems to drinking water solutions and advanced contaminant removal, you can trust Secondwind to improve your water—and your peace of mind.

"Exceptional work and quality. The installer truly knew what he was doing. He was quick, thorough and very efficient."

Bruce S on November 2019

At Secondwind Water Systems, we specialize in customized water treatment solutions for homes and businesses across New Hampshire. Whether you're dealing with Hard Water, PFAS, Arsenic, Odors, or other water quality issues, we provide testing, diagnosis, and system installation tailored to your unique water chemistry. What sets us apart? We have more certified water professionals than any other company in New Hampshire—ensuring every recommendation we make is backed by deep technical expertise. Our team is dedicated to delivering dependable, high-quality service with solutions that truly work. We stand behind our work with exceptional warranties, ongoing support, and a commitment to doing what’s right for our customers. From softeners and filtration systems to drinking water solutions and advanced contaminant removal, you can trust Secondwind to improve your water—and your peace of mind.

"Exceptional work and quality. The installer truly knew what he was doing. He was quick, thorough and very efficient."

Bruce S on November 2019


Avatar for Coy Plumbing & Heating
Coy Plumbing & Heating
601 Shasta St.
5.00(
5
)
Approved Pro
Coy Plumbing & Heating
601 Shasta St.
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
653 local quotes requested

Coy Plumbing and Heating delivers top-quality services with a focus on precision and reliability. From repairs and installations to emergency fixes, we ensure your systems will run smoothly and efficiently. ***WE ALSO SPECIALIZE IN BOILER REPAIRS AND INSTALLATION***

"We were very pleased with the communication and the outcome of our project. We have an old home with some older piping. Finding someone that works on steam boilers is tough. When they looked at the install, they explained what needed to happen clearly deand unrstandable."

Vinnie H on November 2024

Coy Plumbing and Heating delivers top-quality services with a focus on precision and reliability. From repairs and installations to emergency fixes, we ensure your systems will run smoothly and efficiently. ***WE ALSO SPECIALIZE IN BOILER REPAIRS AND INSTALLATION***

"We were very pleased with the communication and the outcome of our project. We have an old home with some older piping. Finding someone that works on steam boilers is tough. When they looked at the install, they explained what needed to happen clearly deand unrstandable."

Vinnie H on November 2024


Avatar for Heritage Home Service
Heritage Home Service
28 Commercial Ct
4.03(
454
)
Approved Pro
Heritage Home Service
28 Commercial Ct
4.03(
454
)
Approved Pro
Customers say: Super punctual
1371 local quotes requested
39 years of experience

We’re Your Local Plumbers, Heating and AC Technicians, and Electricians. Get prompt and professional plumbing, heating, air conditioning, and electrical services. Our quality staff of licensed and local plumbers and electricians have been providing local plumbing, heating, air conditioning, and electric services in the New Hampshire area since our beginnings in 1986. At our heart, Heritage is a family company with a longstanding reputation for providing quality service for a fair price. People tell us that they see our service trucks everywhere in the area, which is true since there’s a good chance that one of our technicians is also your neighbor. This makes it easy for us to be at your home promptly to help you solve your household plumbing, heating, AC, and electrical problems. It also makes it easy for us to do all that we can to maintain our reputation for quality service. One way we continue to improve the quality of our work is through regular training and certification for our great attendants who are behind the scenes making the magic happen. So whether you are struggling with a clogged drain or a noisy furnace, or you need an installation of an appliance, you’ll see the results of our devotion in the service you receive. If you’re experiencing a problem with your plumbing, heating, AC, or electricity at home, then you should give us a call and see what we mean by quality service that’s guaranteed. From clogged drains to AC installation to electrician’s work, we offer a variety of quality services and products at fair prices to NH residents and northern MA residents—guaranteed!

"Paul, our service technician, was timely, knowledgeable, and efficient. I can highly recommend Heritage Home service on this account. However I am extremely unhappy with the company's new service plan offered. I will explore other providers for this reason, and may not use Heritage Home Service in the future."

Craig V on November 2024

We’re Your Local Plumbers, Heating and AC Technicians, and Electricians. Get prompt and professional plumbing, heating, air conditioning, and electrical services. Our quality staff of licensed and local plumbers and electricians have been providing local plumbing, heating, air conditioning, and electric services in the New Hampshire area since our beginnings in 1986. At our heart, Heritage is a family company with a longstanding reputation for providing quality service for a fair price. People tell us that they see our service trucks everywhere in the area, which is true since there’s a good chance that one of our technicians is also your neighbor. This makes it easy for us to be at your home promptly to help you solve your household plumbing, heating, AC, and electrical problems. It also makes it easy for us to do all that we can to maintain our reputation for quality service. One way we continue to improve the quality of our work is through regular training and certification for our great attendants who are behind the scenes making the magic happen. So whether you are struggling with a clogged drain or a noisy furnace, or you need an installation of an appliance, you’ll see the results of our devotion in the service you receive. If you’re experiencing a problem with your plumbing, heating, AC, or electricity at home, then you should give us a call and see what we mean by quality service that’s guaranteed. From clogged drains to AC installation to electrician’s work, we offer a variety of quality services and products at fair prices to NH residents and northern MA residents—guaranteed!

"Paul, our service technician, was timely, knowledgeable, and efficient. I can highly recommend Heritage Home service on this account. However I am extremely unhappy with the company's new service plan offered. I will explore other providers for this reason, and may not use Heritage Home Service in the future."

Craig V on November 2024

Showing 1-10 of 33

FAQs for water treatment & purification system installation and replacement projects in Alton Bay, NH

A whole-house water filtration system is ideal if you want all the water in your home to be filtered, improving water quality and protecting your plumbing. This system can enhance your home's value. If you only need filtered water for drinking or cooking, a point-of-use filter might be a suitable alternative. Each filtration option is designed to remove specific contaminants.

Maintaining your whole‑house water filtration system is essential for uninterrupted performance and clean water. The annual expense, which ranges between $50 and $300, covers filter replacements, complete system inspections, and any required repair work. Regular maintenance keeps the system operating at peak efficiency and guarantees the highest water quality for every home use.

Installing a whole‑house water filtration system is a streamlined process that a professional can complete in one day. Multistage systems require additional time to secure proper plumbing connections and calibrate the system accurately. In contrast, point‑of‑use filters are installed within a few hours, ensuring efficient and precise integration in your home.

Most whole-house filtration systems last 10 to 20 years with proper care. Reverse osmosis units typically serve 10 to 15 years, while water distillers can exceed two decades. Lifespan depends on build quality, water chemistry, and whether filters, lamps, or membranes are changed on schedule. Regular professional inspections help you catch minor issues before they shorten the system’s life. Budget for planned component replacements to reach the upper end of that range.

Fast clogging usually points to high sediment levels, heavy water use, or both. When more dirt and minerals flow through the system, filters load up sooner and performance drops. Schedule a water test to confirm what’s in your supply, add a sediment pre-filter if needed, and follow the manufacturer’s replacement timeline to keep water pressure and quality where they belong.

The Alton Bay, NH homeowners’ guide to water treatment & purification system installations and replacements
From average costs to expert advice, get all the answers you need to get your job done.
water purification filter system in home
Jun 24, 2025
Jun 24, 2025
The cost of installing a whole-house water filtration system depends on the type and number of filters you choose. Use this guide to budget for your project.
reverse osmosis water filtration system
Jun 17, 2025
Jun 17, 2025
Budget for reverse osmosis water filter costs based on factors such as system type, efficiency, number of stages, labor, add-on features, and more.
A small girl washing her hands in the bathroom sink
Mar 25, 2025
Mar 25, 2025
Use this guide to budget for water softener repair costs based on factors such as water treatment system type, replacement parts, professional labor, and more.
A woman holding glass under faucet in kitchen
Feb 12, 2025
Feb 12, 2025
If you’re planning to install a water softener, consider budgeting based on capacity, type of system, tank size, and more.
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