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Find Water treatment & purification system repair or service pros in San Francisco

Avatar for SplashFix Plumbing

SplashFix Plumbing

5.00(
6
)
•Approved Pro

SplashFix Plumbing

5.00(
6
)
•Approved Pro
Super Service Award
Customers say: Quick response
28 local quotes requested
5 years of experience

Welcome to SplashFix Plumbing, where we’re more than just plumbers – we’re your partners in maintaining the comfort and functionality of your home. With a passion for plumbing and a commitment to customer satisfaction, we specialize in providing top-notch general plumbing services that keep your household running smoothly. From leaky faucets, clogged drains, to water heaters we’re excited to tackle any challenge that comes our way, ensuring that your plumbing system is in tiptop shape. Our team of skilled technicians is dedicated to showing up on time, fully prepared, and ready to roll up our sleeves to get the job done right. With attention to detail and a focus on quality craftsmanship, we take pride in delivering results that exceed your expectations. So whether you’re facing a minor repair or a major plumbing overhaul, you can trust SplashFix Plumbing to handle it with professionalism and expertise. Let us take the stress out of your plumbing problems – contact us today and experience the difference for yourself!

"Isaac and team were incredible in getting a bunch of updating old and out-of-code plumbing work done on our tricky 100-year-old house. They took time to really dig in and assess the right game plan to make sure not only that all the plumbing and vents were done properly, but that they looked great given some would still be exposed / visible under our porch. The team was communicative and courteous. Our new plumbing is working like a charm. The tankless heater and smart shutoff are cranking. And everything passed on first inspection. The inspector even commented how clean and detailed it all looked. Would recommend SplashFix for any project, big or small."

Michael G on November 2025

Welcome to SplashFix Plumbing, where we’re more than just plumbers – we’re your partners in maintaining the comfort and functionality of your home. With a passion for plumbing and a commitment to customer satisfaction, we specialize in providing top-notch general plumbing services that keep your household running smoothly. From leaky faucets, clogged drains, to water heaters we’re excited to tackle any challenge that comes our way, ensuring that your plumbing system is in tiptop shape. Our team of skilled technicians is dedicated to showing up on time, fully prepared, and ready to roll up our sleeves to get the job done right. With attention to detail and a focus on quality craftsmanship, we take pride in delivering results that exceed your expectations. So whether you’re facing a minor repair or a major plumbing overhaul, you can trust SplashFix Plumbing to handle it with professionalism and expertise. Let us take the stress out of your plumbing problems – contact us today and experience the difference for yourself!

"Isaac and team were incredible in getting a bunch of updating old and out-of-code plumbing work done on our tricky 100-year-old house. They took time to really dig in and assess the right game plan to make sure not only that all the plumbing and vents were done properly, but that they looked great given some would still be exposed / visible under our porch. The team was communicative and courteous. Our new plumbing is working like a charm. The tankless heater and smart shutoff are cranking. And everything passed on first inspection. The inspector even commented how clean and detailed it all looked. Would recommend SplashFix for any project, big or small."

Michael G on November 2025

Avatar for AAA Water Systems

AAA Water Systems

4.92(
48
)
•Approved Pro

AAA Water Systems

4.92(
48
)
•Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
33 local quotes requested

Back in the 1980's a small team of water professionals got together in Northern California with one goal in mind; to improve lives through better water. The target was not only to help families, but businesses alike! By 1993, we came to realize that there was only one manufacturer that would allow us to achieve this goal while also exceeding our customers' extraordinary expectations. This WAS, IS and ALWAYS will be Kinetico Water Systems. Today AAA Water Systems, Inc. is able to exclusively offer Kinetico; the world's best product line of non-electric water purification, filtration and softening systems. Now with over 40 years of water treatment expertise, we are a strong group of over 40 team members operating across the greater Northern California area.

"The water here in Manteca is terrible. It smells, tastes disgusting and leaves your skin dry and ashy. I research water softeners/purifiers online and with my neighbors and then contacted AAA Water Systems since they use the Kinetico water systems. I had an appointment with Damian Fernandez and he was very thorough in his explanations of the system, how it works, maintanence, future costs, just everything I needed to know to make an informed decision. And it was the best decision ! I know have purified water right at my sink from the reverse osmosis sytem and soft smell free water from all the taps. No more hard water deposits, no ashy skin and coarse hair. No more bottled water to drink or cook with. The installers were wonderful...prompt and professional. Everything spotless when they were done. They carefully explained and showed me how to use, maintain, and just in case, shut the system off. They also provide little measuring scoops for the proper amount of soap to use in the washing machine and the dishwasher."

Terrilynn M on September 2021

Back in the 1980's a small team of water professionals got together in Northern California with one goal in mind; to improve lives through better water. The target was not only to help families, but businesses alike! By 1993, we came to realize that there was only one manufacturer that would allow us to achieve this goal while also exceeding our customers' extraordinary expectations. This WAS, IS and ALWAYS will be Kinetico Water Systems. Today AAA Water Systems, Inc. is able to exclusively offer Kinetico; the world's best product line of non-electric water purification, filtration and softening systems. Now with over 40 years of water treatment expertise, we are a strong group of over 40 team members operating across the greater Northern California area.

"The water here in Manteca is terrible. It smells, tastes disgusting and leaves your skin dry and ashy. I research water softeners/purifiers online and with my neighbors and then contacted AAA Water Systems since they use the Kinetico water systems. I had an appointment with Damian Fernandez and he was very thorough in his explanations of the system, how it works, maintanence, future costs, just everything I needed to know to make an informed decision. And it was the best decision ! I know have purified water right at my sink from the reverse osmosis sytem and soft smell free water from all the taps. No more hard water deposits, no ashy skin and coarse hair. No more bottled water to drink or cook with. The installers were wonderful...prompt and professional. Everything spotless when they were done. They carefully explained and showed me how to use, maintain, and just in case, shut the system off. They also provide little measuring scoops for the proper amount of soap to use in the washing machine and the dishwasher."

Terrilynn M on September 2021

Avatar for In & Out Plumbing & Construction Inc

In & Out Plumbing & Construction Inc

4.26(
65
)
•Approved Pro

In & Out Plumbing & Construction Inc

4.26(
65
)
•Approved Pro
Customers say: Quick response
106 local quotes requested
28 years of experience

In and Out Plumbing and Construction is a family owned business and we take pride in our honesty, our integrity, and ourselves. Our Plumbers and Technicians are trained, licensed, bonded and insured professionals. We focus on residential and commercial plumbing in the Bay Area. We are open 24/7 and on all HOLIDAYS.

"satisfied with their work "

Sherry M on December 2025

In and Out Plumbing and Construction is a family owned business and we take pride in our honesty, our integrity, and ourselves. Our Plumbers and Technicians are trained, licensed, bonded and insured professionals. We focus on residential and commercial plumbing in the Bay Area. We are open 24/7 and on all HOLIDAYS.

"satisfied with their work "

Sherry M on December 2025

PV Plumbing

No reviews yet

PV Plumbing

No reviews yet
34 years of experience

We will do a professional job in a timely manor.

We will do a professional job in a timely manor.

Avatar for Homfix Inc.

Homfix Inc.

5.00(
2
)

Homfix Inc.

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a Home Improvement and design Company that provides all type of home services from A to Z, Kitchen Remodel, Bathroom Remodel, Additions, Roof, Solar Panels, and ect..

We are a Home Improvement and design Company that provides all type of home services from A to Z, Kitchen Remodel, Bathroom Remodel, Additions, Roof, Solar Panels, and ect..

Avatar for Eco Technology

Eco Technology

No reviews yet

Eco Technology

No reviews yet
9 years of experience

ECO Technology is a provider of ecologically friendly technologies for homes and businesses. Specializing in Water Quality, Water Purification Systems, HVAC, Solar Energy and much more.

ECO Technology is a provider of ecologically friendly technologies for homes and businesses. Specializing in Water Quality, Water Purification Systems, HVAC, Solar Energy and much more.

Avatar for Doc Joe's Rooter & Plumbing Service

Doc Joe's Rooter & Plumbing Service

4.44(
27
)

Doc Joe's Rooter & Plumbing Service

4.44(
27
)
Customers say: Quality work
51 years of experience

We have a team of highly experienced and skilled plumbing experts and contractors with an excellent mastery of the plumbing industry. Our team is focused on providing every client with high quality workmanship, prompt appointments, competitive prices and excellent customer service. Our professional plumbing experts are proficient at diagnosing the problem, communicating a detailed explanation of their findings to you, answering all of your questions, and repairing or replacing all of your plumbing issues. Our plumbing experts have extensive experience and training in repairing all types of residential and commercial problems including, but not limited to, leaks, toilets, faucets, water heaters, tankless water heaters, drain and sewer pipes, garbage disposals, re-circulating pumps, gas lines and earthquake valves. We are dedicated towards maintaining cutting-edge plumbing standards and quality craftsmanship within our profession. We achieve this by continually training and educating our team of plumbing experts in all areas of the plumbing field. Finally, we fully stand behind the quality of the work we do by providing not only great customer service but also providing our clients with competitive warranties on the craftsmanship of the work we perform.

We have a team of highly experienced and skilled plumbing experts and contractors with an excellent mastery of the plumbing industry. Our team is focused on providing every client with high quality workmanship, prompt appointments, competitive prices and excellent customer service. Our professional plumbing experts are proficient at diagnosing the problem, communicating a detailed explanation of their findings to you, answering all of your questions, and repairing or replacing all of your plumbing issues. Our plumbing experts have extensive experience and training in repairing all types of residential and commercial problems including, but not limited to, leaks, toilets, faucets, water heaters, tankless water heaters, drain and sewer pipes, garbage disposals, re-circulating pumps, gas lines and earthquake valves. We are dedicated towards maintaining cutting-edge plumbing standards and quality craftsmanship within our profession. We achieve this by continually training and educating our team of plumbing experts in all areas of the plumbing field. Finally, we fully stand behind the quality of the work we do by providing not only great customer service but also providing our clients with competitive warranties on the craftsmanship of the work we perform.

HANSON PLUMBING & REPIPE

No reviews yet

HANSON PLUMBING & REPIPE

No reviews yet
29 years of experience

We love our clients and are happy to offer Free Estimates!

We love our clients and are happy to offer Free Estimates!

Robert Duncan Construction

5.00(
1
)

Robert Duncan Construction

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

General Contractor , Build and Design, Consulting, Commercial Building Maintenance, All kitchen remodels $500 off and $300 Off for Complete Bathroom remodels the month of September through December. 20% Off complete Remodel of Entire House. $50 Dollars of any Home Improvement, Hot water Heater, Tankless water heater, Garbage Disposal,Dishwasher ,Windows

General Contractor , Build and Design, Consulting, Commercial Building Maintenance, All kitchen remodels $500 off and $300 Off for Complete Bathroom remodels the month of September through December. 20% Off complete Remodel of Entire House. $50 Dollars of any Home Improvement, Hot water Heater, Tankless water heater, Garbage Disposal,Dishwasher ,Windows

Castle Services Plumbing

No reviews yet

Castle Services Plumbing

No reviews yet
34 years of experience

One man shop. Serving Anaheim over 15 years!

One man shop. Serving Anaheim over 15 years!

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FAQs for water treatment & purification system repair or service projects in San Francisco, CA

If your water softener is over 10 years old or if repair costs approach the price of a new unit, it might be time to replace it. Most water softeners last between 10 and 15 years. Replacing an aging unit can improve your water quality and help you avoid frequent repair costs. For a newer system with minor issues, repairing may be the best option. Consider the age and condition of your system to decide what's most cost-effective.

Water treatment systems remain dependable for 10 to 20 years with proper maintenance and care. A well-maintained system secures full performance by following a scheduled upkeep plan and professional inspections. Consistent maintenance guarantees continuous water purification, ensuring that the system operates at its peak efficiency and delivers high‑quality water throughout its lifespan.

Faulty water softeners exhibit clear symptoms that signal the need for immediate attention. Noticeable mineral build-up around faucets, discolored water, dry or itchy skin following a shower, and altered laundry texture indicate that the system is underperforming. Recognizing these issues early and addressing them promptly prevents further damage and maintains optimal water quality. Early intervention ensures that your water system continues to operate reliably and efficiently.

The San Francisco, CA homeowners’ guide to water treatment & purification system repair or services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles