Top-rated water treatment & purification system installers and replacers.

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Find Water treatment & purification system installers and replacers in Seattle

"Great company, quick service, quality work."

Carol P on November 2021

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Great company, quick service, quality work."

Carol P on November 2021


Avatar for Clearwater Services, Inc.

Clearwater Services, Inc.

306A Front Street
4.65(
15
)
Approved Pro

Clearwater Services, Inc.

306A Front Street
4.65(
15
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
27 local quotes requested

Clearwater Systems has been family-rooted since our founding in 1946, and today our team continues that same tradition of quality and service. We believe every customer deserves the best products to enjoy the best water. With decades of experience, we understand local water challenges better than most—and our experts can design the right system to address the unique issues of both ground and surface water. Start today with a FREE water analysis to identify any concerns in your home or business. Clearwater Systems is an Authorized, Independent Kinetico Dealer. Plumbers License #CLEARS*777RE

"Friendly workers"

Ruy L on November 2023

Clearwater Systems has been family-rooted since our founding in 1946, and today our team continues that same tradition of quality and service. We believe every customer deserves the best products to enjoy the best water. With decades of experience, we understand local water challenges better than most—and our experts can design the right system to address the unique issues of both ground and surface water. Start today with a FREE water analysis to identify any concerns in your home or business. Clearwater Systems is an Authorized, Independent Kinetico Dealer. Plumbers License #CLEARS*777RE

"Friendly workers"

Ruy L on November 2023


Avatar for Water Doctor of Washington

Water Doctor of Washington

2556 Jackson Highway
4.73(
58
)
Approved Pro

Water Doctor of Washington

2556 Jackson Highway
4.73(
58
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
97 local quotes requested

At Water Doctor of Washington, we’re dedicated to making sure families and businesses across Western and Eastern Washington have access to clean, safe, and great-tasting water. With decades of experience, our skilled team provides complete solutions including water treatment, purification systems, plumbing services, bottled water delivery, and system rentals. Every customer receives personalized attention, honest advice, and dependable service. Whether you need softer water, advanced filtration, or full plumbing support, you can rely on Water Doctor to deliver expert results with the care and quality you deserve. Your water is our passion, and we’re here to make sure it’s the best it can be.

"Great!"

Jeramie S on April 2024

At Water Doctor of Washington, we’re dedicated to making sure families and businesses across Western and Eastern Washington have access to clean, safe, and great-tasting water. With decades of experience, our skilled team provides complete solutions including water treatment, purification systems, plumbing services, bottled water delivery, and system rentals. Every customer receives personalized attention, honest advice, and dependable service. Whether you need softer water, advanced filtration, or full plumbing support, you can rely on Water Doctor to deliver expert results with the care and quality you deserve. Your water is our passion, and we’re here to make sure it’s the best it can be.

"Great!"

Jeramie S on April 2024


Blue Line Water Inc.

2531 Inter Ave, Suite A
4.89(
46
)
Approved Pro

Blue Line Water Inc.

2531 Inter Ave, Suite A
4.89(
46
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
35 local quotes requested

Blue Line Water, Inc. provides comprehensive residential and industrial water treatment, purification and pump system services. We are located in Puyallup, Washington, and serve the Pacific Northwest region. We service many types and brands of water treatment equipment and pump systems, whether installed by us or someone else. Call us today!

"Great work but spendy"

Ron A on July 2024

Blue Line Water, Inc. provides comprehensive residential and industrial water treatment, purification and pump system services. We are located in Puyallup, Washington, and serve the Pacific Northwest region. We service many types and brands of water treatment equipment and pump systems, whether installed by us or someone else. Call us today!

"Great work but spendy"

Ron A on July 2024


Avatar for Beacon Plumbing & Mechanical INC

Beacon Plumbing & Mechanical INC

515 7th Ave S
5.00(
6
)
Approved Pro

Beacon Plumbing & Mechanical INC

515 7th Ave S
5.00(
6
)
Approved Pro
Customers say: Quick response
31 local quotes requested
26 years of experience

Beacon Plumbing 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.

"The tech explained everything and was very polite."

Michelle B on April 2025

Beacon Plumbing 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.

"The tech explained everything and was very polite."

Michelle B on April 2025


Avatar for TradeWorksNW

TradeWorksNW

10210 56th St Se
5.00(
5
)
Approved Pro

TradeWorksNW

10210 56th St Se
5.00(
5
)
Approved Pro
Customers say: Quick response
57 local quotes requested
1 years of experience

Hi Neighbors! TradeWorksNW Plumbing, Heating & Air is here for you. Our goal is to earn the trust of our customers for life. We are dedicated to providing a service that our customers are eager to call/text and/or refer TradeWorksNW. Customers that are proud to have TradeWorksNW be a part of their needs. Thank you!

"Jeremy & team worked fast (water only off less than hour).He did an excellent job replacing faucet and ensuring everything was secure under house before leaving. On time, courteous and efficient."

Tina D on August 2025

Hi Neighbors! TradeWorksNW Plumbing, Heating & Air is here for you. Our goal is to earn the trust of our customers for life. We are dedicated to providing a service that our customers are eager to call/text and/or refer TradeWorksNW. Customers that are proud to have TradeWorksNW be a part of their needs. Thank you!

"Jeremy & team worked fast (water only off less than hour).He did an excellent job replacing faucet and ensuring everything was secure under house before leaving. On time, courteous and efficient."

Tina D on August 2025


Avatar for Plumbing Excellence Northwest, LLC

Plumbing Excellence Northwest, LLC

27226 105th Avenue SE
5.00(
7
)
Approved Pro

Plumbing Excellence Northwest, LLC

27226 105th Avenue SE
5.00(
7
)
Approved Pro
10 years of experience
Free onsite estimate

We are a locally owned and operated company that values honesty and integrity, and treats your project as if it were our own. We offer a variety of services that are customization to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"Jose Ruiz was very professional explained every step of the process. As someone who knows nothing about plumbing he walked me through all the details. Thank you Jose for coming out to my home within 2 hours on a Friday evening. A job well done at a reasonable price. You Rock!!!"

Lynnet M on October 2025

We are a locally owned and operated company that values honesty and integrity, and treats your project as if it were our own. We offer a variety of services that are customization to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"Jose Ruiz was very professional explained every step of the process. As someone who knows nothing about plumbing he walked me through all the details. Thank you Jose for coming out to my home within 2 hours on a Friday evening. A job well done at a reasonable price. You Rock!!!"

Lynnet M on October 2025


Avatar for Home Comfort Alliance

Home Comfort Alliance

3409 Everett Ave.
4.75(
306
)
Approved Pro

Home Comfort Alliance

3409 Everett Ave.
4.75(
306
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
126 local quotes requested

At Home Comfort Alliance, we provide expert HVAC, plumbing, and electrical services to homeowners across Seattle, Tacoma, Bellevue, Everett, and the entire Puget Sound region. Our licensed technicians deliver 5-star service, upfront pricing, and energy-efficient solutions you can trust. 🏠 Heating & Cooling: Furnace & AC repair, installation, heat pumps, ductless mini-splits, and air purification. 🚿 Plumbing: Water heater replacement (tank & tankless), drain cleaning, leak repair, and repiping. ⚡ Electrical: Panel upgrades, whole-home rewiring, generators, surge protection, and smart home systems. As a locally owned Carrier Factory Authorized Dealer, we’re known for honest service, premium products, and fast emergency response—keeping your home safe, comfortable, and efficient all year long.

"I requested an HVAC service call quote from G&S Heating through Angi, and received a "deal" via Angi for $129. I chose them partly due to that price. G&S Heating ended up billing me $280, and said that was an old outdated deal and would not honor it. Irresponsible and incredibly poor customer relations. Also, the technician they sent did not seem very knowledgeable or experienced. He said the thermostat reading issue I was having would require another service call and the possible replacement of an expensive circuit board. I ended up fixing the problem myself. I will not be using G&S Heating again."

Keith M on November 2022

At Home Comfort Alliance, we provide expert HVAC, plumbing, and electrical services to homeowners across Seattle, Tacoma, Bellevue, Everett, and the entire Puget Sound region. Our licensed technicians deliver 5-star service, upfront pricing, and energy-efficient solutions you can trust. 🏠 Heating & Cooling: Furnace & AC repair, installation, heat pumps, ductless mini-splits, and air purification. 🚿 Plumbing: Water heater replacement (tank & tankless), drain cleaning, leak repair, and repiping. ⚡ Electrical: Panel upgrades, whole-home rewiring, generators, surge protection, and smart home systems. As a locally owned Carrier Factory Authorized Dealer, we’re known for honest service, premium products, and fast emergency response—keeping your home safe, comfortable, and efficient all year long.

"I requested an HVAC service call quote from G&S Heating through Angi, and received a "deal" via Angi for $129. I chose them partly due to that price. G&S Heating ended up billing me $280, and said that was an old outdated deal and would not honor it. Irresponsible and incredibly poor customer relations. Also, the technician they sent did not seem very knowledgeable or experienced. He said the thermostat reading issue I was having would require another service call and the possible replacement of an expensive circuit board. I ended up fixing the problem myself. I will not be using G&S Heating again."

Keith M on November 2022


Avatar for Roto-Rooter Plumbing & Water Cleanup

Roto-Rooter Plumbing & Water Cleanup

1040 NE Hostmark St
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Roto-Rooter Plumbing & Water Cleanup

1040 NE Hostmark St
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
80 local quotes requested
90 years of experience

Roto-Rooter is a fully licensed and insured plumbing company providing 24/7 plumbing services, drain cleaning, and water damage cleanup. More people depend on Roto-Rooter than any other plumbing company in North America.

Roto-Rooter is a fully licensed and insured plumbing company providing 24/7 plumbing services, drain cleaning, and water damage cleanup. More people depend on Roto-Rooter than any other plumbing company in North America.


Avatar for Roto-Rooter Plumbing & Water Cleanup

Roto-Rooter Plumbing & Water Cleanup

423 Pacific Ave
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Roto-Rooter Plumbing & Water Cleanup

423 Pacific Ave
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
80 local quotes requested
90 years of experience

Roto-Rooter is a fully licensed and insured plumbing company providing 24/7 plumbing services, drain cleaning, and water damage cleanup. More people depend on Roto-Rooter than any other plumbing company in North America.

Roto-Rooter is a fully licensed and insured plumbing company providing 24/7 plumbing services, drain cleaning, and water damage cleanup. More people depend on Roto-Rooter than any other plumbing company in North America.

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The Seattle, WA 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.