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Water treatment & purification system installers and replacers in Guilford

KSL Mechanical, LLC
69 Warner Road
5.00(
1
)
Approved Pro
KSL Mechanical, LLC
69 Warner Road
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

KSL Mechanical LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"Tom was wonderful!! On time and did great work. So pleasant to work with. Iâ d hire him again for sure!!"

kimberly P on October 2021

KSL Mechanical LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"Tom was wonderful!! On time and did great work. So pleasant to work with. Iâ d hire him again for sure!!"

kimberly P on October 2021


Avatar for CT Radon & Well Water Solutions
CT Radon & Well Water Solutions
80 Birchwood Rd
4.79(
68
)
Approved Pro
CT Radon & Well Water Solutions
80 Birchwood Rd
4.79(
68
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
45 local quotes requested

Our team has over 80 years of combined experience providing reliable radon mitigation, water filtration, and well pump services and solutions to the Fairfield, New Haven, Hartford and Litchfield Counties of CT. Want to create a healthier and safer home environment? Call CT Radon and Well Water Solutions to schedule a no-cost radon mitigation or well water treatment estimate. We also offer cost effective well pump repairs throughout Fairfield, New Haven, Litchfield, and portions of Hartford counties. Schedule yours today!

"Great job and professional"

Jim M on May 2024

Our team has over 80 years of combined experience providing reliable radon mitigation, water filtration, and well pump services and solutions to the Fairfield, New Haven, Hartford and Litchfield Counties of CT. Want to create a healthier and safer home environment? Call CT Radon and Well Water Solutions to schedule a no-cost radon mitigation or well water treatment estimate. We also offer cost effective well pump repairs throughout Fairfield, New Haven, Litchfield, and portions of Hartford counties. Schedule yours today!

"Great job and professional"

Jim M on May 2024


Avatar for J.M. Water Solutions, LLC
J.M. Water Solutions, LLC
115 Walnut HIll Road
4.71(
14
)
Approved Pro
J.M. Water Solutions, LLC
115 Walnut HIll Road
4.71(
14
)
Approved Pro
Customers say: True professional
52 local quotes requested
1 years of experience

J.M. Water Solutions 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. With over 20 years experience in the water treatment business. We are confident we will get the job done right and to your satisfaction

"This company is by far excellent in all aspects of the job from the first call to the last handshake! Jim is very pleasant, personable and professional, as well was Kevin his worker. He set an appointment, was here on time. He came and he gave me a very fair quote and explained everything in great detail. He actually had a cancelation so he called knowing that my situation was dire. He came, installed the system, explained exactly what he had done, how the new system works and the process that I needed to do to maintain the system. He worked quietly and cleaned up everything afterwards. You wouldn't have known anything was even done unless you had seen it before hand. I feel that Jim was very fair in his price and very reasonable compared to others. I am extremely pleased with all of the interactions with Jim. He told to call with any questions or concerns. I highly recommend Jim. He made this process simple, informative, affordable and pleasurable! I felt very confident hiring him"

Brenda B on April 2025

J.M. Water Solutions 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. With over 20 years experience in the water treatment business. We are confident we will get the job done right and to your satisfaction

"This company is by far excellent in all aspects of the job from the first call to the last handshake! Jim is very pleasant, personable and professional, as well was Kevin his worker. He set an appointment, was here on time. He came and he gave me a very fair quote and explained everything in great detail. He actually had a cancelation so he called knowing that my situation was dire. He came, installed the system, explained exactly what he had done, how the new system works and the process that I needed to do to maintain the system. He worked quietly and cleaned up everything afterwards. You wouldn't have known anything was even done unless you had seen it before hand. I feel that Jim was very fair in his price and very reasonable compared to others. I am extremely pleased with all of the interactions with Jim. He told to call with any questions or concerns. I highly recommend Jim. He made this process simple, informative, affordable and pleasurable! I felt very confident hiring him"

Brenda B on April 2025


Avatar for Drainworks Plumbing & Septic, LLC
Drainworks Plumbing & Septic, LLC
489 Old Hartford Road
4.78(
214
)
Approved Pro
Drainworks Plumbing & Septic, LLC
489 Old Hartford Road
4.78(
214
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
22 local quotes requested

At Drainworks Plumbing & Septic, LLC, we take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Excellent communication - quick response"

Michael B on April 2025

At Drainworks Plumbing & Septic, LLC, we take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Excellent communication - quick response"

Michael B on April 2025


Avatar for Professional Water Systems
Professional Water Systems
963 Ethan Allen Hwy
4.47(
32
)
Approved Pro
Professional Water Systems
963 Ethan Allen Hwy
4.47(
32
)
Approved Pro
Customers say: Quality work
91 local quotes requested
45 years of experience

Professional Water Systems was established in 1980. We are water filtration and purification specialists. We have been serving Fairfield, New Haven, Litchfield, Westchester, Putnum and Cutchess counties for more than 31 years. We are a family owned and operated company that prides itself on quality products and service. We classify ourselves as a big/small company capable of doing residential and commercial work while providing personalized friendly service. One of our staff is always available to respond to your questions about problems or services that you may require. We look forward to hearing from you!

"Never called."

nelson b on September 2020

Professional Water Systems was established in 1980. We are water filtration and purification specialists. We have been serving Fairfield, New Haven, Litchfield, Westchester, Putnum and Cutchess counties for more than 31 years. We are a family owned and operated company that prides itself on quality products and service. We classify ourselves as a big/small company capable of doing residential and commercial work while providing personalized friendly service. One of our staff is always available to respond to your questions about problems or services that you may require. We look forward to hearing from you!

"Never called."

nelson b on September 2020


Avatar for Roto-Rooter Plumbing & Water Cleanup
Roto-Rooter Plumbing & Water Cleanup
255 Stagg St
4.45(
38
)
Approved Pro
Roto-Rooter Plumbing & Water Cleanup
255 Stagg St
4.45(
38
)
Approved Pro
Customers say: Quality work
1299 local quotes requested
90 years of experience

When you need an emergency plumber or a drain cleaner, call Roto-Rooter Plumbing & Water Cleanup. Your fast & reliable plumber can fix any plumbing problem, including sump pumps, toilet repair, faucet repair, faucet replacement, garbage disposals, water heaters, bathtubs, showers, and outside faucets. Roto-Rooter is best known for drain cleaning & sewer cleaning. We fix drain clogs, clogged toilets or sinks, blockage of main sewer lines, slow draining shower and bathtub drains, sewer lines and leaking or burst pipes. We also specialize in water damage restoration & water cleanup services. We can fix and clean up your flooded basement too. Roto-Rooter is a 24-hour plumber near you and provides emergency service.

"The amount of times this company has no call, no showed for a problem with a unit they just installed is uncanny. Not to mention I was grossly overcharged for a service they aren’t even providing. Zero class. Zero accountability. Zero stars."

Beth R on February 2025

When you need an emergency plumber or a drain cleaner, call Roto-Rooter Plumbing & Water Cleanup. Your fast & reliable plumber can fix any plumbing problem, including sump pumps, toilet repair, faucet repair, faucet replacement, garbage disposals, water heaters, bathtubs, showers, and outside faucets. Roto-Rooter is best known for drain cleaning & sewer cleaning. We fix drain clogs, clogged toilets or sinks, blockage of main sewer lines, slow draining shower and bathtub drains, sewer lines and leaking or burst pipes. We also specialize in water damage restoration & water cleanup services. We can fix and clean up your flooded basement too. Roto-Rooter is a 24-hour plumber near you and provides emergency service.

"The amount of times this company has no call, no showed for a problem with a unit they just installed is uncanny. Not to mention I was grossly overcharged for a service they aren’t even providing. Zero class. Zero accountability. Zero stars."

Beth R on February 2025


Water Dr LLC
14 Greenfield Dr.
4.76(
59
)
Water Dr LLC
14 Greenfield Dr.
4.76(
59
)
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

Serving Fairfield County and Connecticut with over 35 years experience. Family owned and operated. Professional service for Well Pumps, Water Filtration, Water Testing and Radon Removal Systems. Offering competitive pricing with quality service that cannot be beat. We offer free quotes and emergency services, if you have low pressure or no water coming out of your tap. We professionally diagnose, plan and install filters to remove: stains, discolored water, bad odors, radon, uranium, arsenic and bacteria. We do not use an answering service, we will always answer your phone calls with any questions you may have. We are here to help you 24/7.

"I had a problem with the water pressure fluctuating. Come to find out, it was the holding tank. The professionals at Waterdrct came out (Dennis) promptly and found the tank was old and waterbound. They were like lightening (in a good way) and had the tank replaced in like 30 mins. These guys are GOOD !!! The water pressure was more than I thought the well could produce. Excellent job and very informative. They are true professionals !! I highly recommend them."

Dave H on April 2024

Serving Fairfield County and Connecticut with over 35 years experience. Family owned and operated. Professional service for Well Pumps, Water Filtration, Water Testing and Radon Removal Systems. Offering competitive pricing with quality service that cannot be beat. We offer free quotes and emergency services, if you have low pressure or no water coming out of your tap. We professionally diagnose, plan and install filters to remove: stains, discolored water, bad odors, radon, uranium, arsenic and bacteria. We do not use an answering service, we will always answer your phone calls with any questions you may have. We are here to help you 24/7.

"I had a problem with the water pressure fluctuating. Come to find out, it was the holding tank. The professionals at Waterdrct came out (Dennis) promptly and found the tank was old and waterbound. They were like lightening (in a good way) and had the tank replaced in like 30 mins. These guys are GOOD !!! The water pressure was more than I thought the well could produce. Excellent job and very informative. They are true professionals !! I highly recommend them."

Dave H on April 2024


C & J Pumps, LLC
153 Amity Rd
3.67(
6
)
C & J Pumps, LLC
153 Amity Rd
3.67(
6
)
31 years of experience

Family owned and operated since 1994.Free Estimates.Great Service for Fair price.10% discount with mention of ad. 24 hour emergency service

"Initially the job went fine, however we have had a leak, which they did come out and fix. But we have called them several times and had an Appt. scheduled they failed to show up and refuse to call us back. So I have had to hire a Plumber to clean up the rest of their mess. I certainly would look elsewhere."

Mike P on September 2022

Family owned and operated since 1994.Free Estimates.Great Service for Fair price.10% discount with mention of ad. 24 hour emergency service

"Initially the job went fine, however we have had a leak, which they did come out and fix. But we have called them several times and had an Appt. scheduled they failed to show up and refuse to call us back. So I have had to hire a Plumber to clean up the rest of their mess. I certainly would look elsewhere."

Mike P on September 2022


J T Collins Plumbing and Heating
23 Marion St
4.50(
8
)
J T Collins Plumbing and Heating
23 Marion St
4.50(
8
)
Customers say: Quick response
16 years of experience

JT Collins Plumbing has been in business since 2009, we specialize in all types plumbing and hot water heating Installations and repair. Give us a call or text at (203)500-4639 for your free estimate today.

"Horrible. Still working on the project. Three days in he worked a total of 6 hours. Constantly left the job for hours at a time. Never showed up when he said he would. Always I will be there in 10 minutes and an hour an a half later strolling up to have to leve again within an hour of working. Tor up the house and left a mess and the job still is not done. Extremely unhappy. I will NEVER use him again or thissite for refferences again."

jodi l on February 2021

JT Collins Plumbing has been in business since 2009, we specialize in all types plumbing and hot water heating Installations and repair. Give us a call or text at (203)500-4639 for your free estimate today.

"Horrible. Still working on the project. Three days in he worked a total of 6 hours. Constantly left the job for hours at a time. Never showed up when he said he would. Always I will be there in 10 minutes and an hour an a half later strolling up to have to leve again within an hour of working. Tor up the house and left a mess and the job still is not done. Extremely unhappy. I will NEVER use him again or thissite for refferences again."

jodi l on February 2021


Powell Plumbing
121 Old Nod Rd
No reviews
Powell Plumbing
121 Old Nod Rd
No reviews
16 years of experience

Always clean professional service. All major credit cards accepted.

Always clean professional service. All major credit cards accepted.

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Water treatment & purification system installations and replacements FAQs

In a reverse osmosis system, water from your main line—or from a designated faucet—is pushed through a semipermeable membrane under pressure. The membrane’s microscopic pores trap dissolved solids, heavy metals, and other contaminants, while clean water passes into a storage tank or straight to the tap. The leftover concentrated water simply drains away. The result is clear, great‑tasting water delivered right where you need it.

A plumber can set up a point‑of‑use unit in one to two hours. A whole‑house system is more involved and often takes one to two days because it ties into the main supply line and may need extra plumbing. During installation, the pro mounts the unit, connects the pipes, checks for leaks, and tests performance so you’re ready to pour a glass as soon as they leave.

Reverse osmosis removes dissolved solids, heavy metals, and many microorganisms, giving you water that tastes cleaner and protects your family. Softer water also helps appliances, faucets, and ice makers last longer. Because you’re filling reusable bottles instead of buying single‑use plastic, most homeowners save money and cut waste. In short, you get better‑tasting water, longer‑lasting appliances, and a smaller environmental footprint from one straightforward system.

The 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.
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