Get matched with top water treatment & purification system repair or service pros in your area
Enter your zip and get matched with up to 3 pros
Matching on HomeAdvisor
Water treatment & purification system repair or service pros in Sunnyvale
At THE TANKLESS GUYS PLUMBING CORP 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!
"They were prompt and fantastic"
Blaine O on January 2025
At THE TANKLESS GUYS PLUMBING CORP 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!
"They were prompt and fantastic"
Blaine O on January 2025
Mike Counsil Plumbing and Rooter is your full service plumbing company. If you have a plumbing project where you need an experienced plumber that will get the job done correctly and in a timely manner, Mike Counsil Plumbing and Rooter can get it done for you. Any plumbing job will be done with the highest quality materials and the best qualified plumbers you can find. We have on-going training to insure that you get the quality you deserve and the warranties you expect. All work is 100% Satisfaction guaranteed, in writing. Drain Cleaning, Sewer Line Repair, Hydro-Jetting, Video Sewer Inspection, and any other plumbing work you may need will be done professional and clean. We'll Be There For You!
"Excellent experience. They were very professional, upfront on the pricing, cheaper than the other plumbers I called. Definitely, I will use them again"
Horst H on April 2025
Mike Counsil Plumbing and Rooter is your full service plumbing company. If you have a plumbing project where you need an experienced plumber that will get the job done correctly and in a timely manner, Mike Counsil Plumbing and Rooter can get it done for you. Any plumbing job will be done with the highest quality materials and the best qualified plumbers you can find. We have on-going training to insure that you get the quality you deserve and the warranties you expect. All work is 100% Satisfaction guaranteed, in writing. Drain Cleaning, Sewer Line Repair, Hydro-Jetting, Video Sewer Inspection, and any other plumbing work you may need will be done professional and clean. We'll Be There For You!
"Excellent experience. They were very professional, upfront on the pricing, cheaper than the other plumbers I called. Definitely, I will use them again"
Horst H on April 2025
Our company provides exceptional service to the surrounding areas. Always taking pride our services, striving to execute with excellence, and putting our customers in the forefront, is our philosophy. Whatever your home improvement needs may be, you can count on our company to leave you satisfied and happy. Call today , youll be pleased you did. Thank you!
"I love these guys! They were attentive to all my needs and helped me feel at ease with the installation. 100/10 service!"
Olive F on June 2024
Our company provides exceptional service to the surrounding areas. Always taking pride our services, striving to execute with excellence, and putting our customers in the forefront, is our philosophy. Whatever your home improvement needs may be, you can count on our company to leave you satisfied and happy. Call today , youll be pleased you did. Thank you!
"I love these guys! They were attentive to all my needs and helped me feel at ease with the installation. 100/10 service!"
Olive F on June 2024
Almost four decades ago, founder and president of De Anza Water Conditioning, John Schafer, entered the water treatment business with a California State Contractor’s license, combined with a wide and deep understanding of water— the benefits of its best and the challenges of its worst. He chose to build his business on the strength of Kinetico Water Systems, supported by a highly specialized technical team and supportive, knowledgeable office staff. Our goal is to satisfy the need of each customer, providing a customized solution for each water problem. We invite you to join our family of more than 10,000 satisfied customers, from San Francisco to Monterey, including residences and businesses.
"I have worked with Tyler 3 times now and he is great. such a positive and friendly outlook. Most recently Tyler and Ben installed a new system in our â in processâ remodel. They worked well with our contractor, who also had high praise for their work and attitude. Iâ d like to also give a shout out to Kim, who is always so friendly and helpful when I call. this is a great company to work with. I highly recommend."
Margaret N on July 2023
Almost four decades ago, founder and president of De Anza Water Conditioning, John Schafer, entered the water treatment business with a California State Contractor’s license, combined with a wide and deep understanding of water— the benefits of its best and the challenges of its worst. He chose to build his business on the strength of Kinetico Water Systems, supported by a highly specialized technical team and supportive, knowledgeable office staff. Our goal is to satisfy the need of each customer, providing a customized solution for each water problem. We invite you to join our family of more than 10,000 satisfied customers, from San Francisco to Monterey, including residences and businesses.
"I have worked with Tyler 3 times now and he is great. such a positive and friendly outlook. Most recently Tyler and Ben installed a new system in our â in processâ remodel. They worked well with our contractor, who also had high praise for their work and attitude. Iâ d like to also give a shout out to Kim, who is always so friendly and helpful when I call. this is a great company to work with. I highly recommend."
Margaret N on July 2023
At our company, we specialize in delivering comprehensive Plumbing, Electrical, and HVAC services to meet all your residential and commercial needs. With a commitment to quality and reliability, our team of licensed professionals is dedicated to ensuring optimal performance and safety in your home or business. Whether it’s routine maintenance, emergency repairs, or new installations, we apply the latest industry standards and innovations to provide tailored solutions that enhance comfort, efficiency, and peace of mind. Trust us to keep your essential systems running smoothly with unparalleled expertise and customer service excellence.
"The complete process from the quote, to scheduling, to the installation of the tankless water heater was excellent. It only took one week from quoting through the completion of the job. The installation was completed in one day. The team was cordial and professional. Furthermore, the price was competitive. I would strongly recommend Super Brothers for your plumbing jobs."
Gordon L on April 2025
At our company, we specialize in delivering comprehensive Plumbing, Electrical, and HVAC services to meet all your residential and commercial needs. With a commitment to quality and reliability, our team of licensed professionals is dedicated to ensuring optimal performance and safety in your home or business. Whether it’s routine maintenance, emergency repairs, or new installations, we apply the latest industry standards and innovations to provide tailored solutions that enhance comfort, efficiency, and peace of mind. Trust us to keep your essential systems running smoothly with unparalleled expertise and customer service excellence.
"The complete process from the quote, to scheduling, to the installation of the tankless water heater was excellent. It only took one week from quoting through the completion of the job. The installation was completed in one day. The team was cordial and professional. Furthermore, the price was competitive. I would strongly recommend Super Brothers for your plumbing jobs."
Gordon L on April 2025
We specialize in plumbing services, water heaters, repairs, inspections, installations, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today! 650-400-2459
"Above and Beyond 5-Star. Water heater replacement for tenants at my CEO boss's coastal rental property required high standards. I did the due diligence, made a LOT of phone calls to get estimates and referrals. After receiving astronomical bids from local plumbers decided to focus on water heater contractors. Maverick was the first and last contacted due to professional first impression, excellent and expedient communications, stellar reviews, availability and very fair pricing. I really liked that Steve is independent vs. franchise owned. It seemed too good to be true so verified his license with CA State, yes he was listed. Install was scheduled for Monday but when tenants called frantic that the leak was escalating, Steve responded by bumping install date up to Saturday. Today was install day. Steve was dependable, timely and got to work immediately. The Above and Beyond was deserved for first draining/uninstall defective unit, transporting it to Home Depot for warranty exchange then delivering replacement unit back to residence. I inadvertently selected the wrong replacement unit, Steve had to turn around to Home Depot and again go through the return process. Steve takes pride in his work, it is clear due to his experience and licensed status he wants to get the job done to code and right. He re-routed the piping to outside and leveled the water heater with shims at no extra charge. I love meticulous attention to detail. It's no wonder when I asked about Diamond Certification sticker on his van he informed me his previous employer was Diamond Certified, more affirmation of experience under highest standards. It feels good to know the time invested to research during selection process paid off and a good decision was made. BONUS: His sidekick is his young Welsh Springer Spaniel named Sam, just adorable."
Vicky B on September 2023
We specialize in plumbing services, water heaters, repairs, inspections, installations, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today! 650-400-2459
"Above and Beyond 5-Star. Water heater replacement for tenants at my CEO boss's coastal rental property required high standards. I did the due diligence, made a LOT of phone calls to get estimates and referrals. After receiving astronomical bids from local plumbers decided to focus on water heater contractors. Maverick was the first and last contacted due to professional first impression, excellent and expedient communications, stellar reviews, availability and very fair pricing. I really liked that Steve is independent vs. franchise owned. It seemed too good to be true so verified his license with CA State, yes he was listed. Install was scheduled for Monday but when tenants called frantic that the leak was escalating, Steve responded by bumping install date up to Saturday. Today was install day. Steve was dependable, timely and got to work immediately. The Above and Beyond was deserved for first draining/uninstall defective unit, transporting it to Home Depot for warranty exchange then delivering replacement unit back to residence. I inadvertently selected the wrong replacement unit, Steve had to turn around to Home Depot and again go through the return process. Steve takes pride in his work, it is clear due to his experience and licensed status he wants to get the job done to code and right. He re-routed the piping to outside and leveled the water heater with shims at no extra charge. I love meticulous attention to detail. It's no wonder when I asked about Diamond Certification sticker on his van he informed me his previous employer was Diamond Certified, more affirmation of experience under highest standards. It feels good to know the time invested to research during selection process paid off and a good decision was made. BONUS: His sidekick is his young Welsh Springer Spaniel named Sam, just adorable."
Vicky B on September 2023
Bay Water Plumbing & Water Systems offers the best water treatment systems on the market. We are locally owned and we're the professionals that you can trust! We have been providing water system products to customers in the Bay Area for over 10 years. Our company installs the best quality water heaters on the market. Contact us to help you eliminate hard water from your home.
"Repairman was very professional and did a great job with the repair. I haven’t had issues with my water heater since."
Xavier G on February 2021
Bay Water Plumbing & Water Systems offers the best water treatment systems on the market. We are locally owned and we're the professionals that you can trust! We have been providing water system products to customers in the Bay Area for over 10 years. Our company installs the best quality water heaters on the market. Contact us to help you eliminate hard water from your home.
"Repairman was very professional and did a great job with the repair. I haven’t had issues with my water heater since."
Xavier G on February 2021
Since 1994, Performance Plus Plumbing,LLC has been servicing residential and commercial customers in the Northern California Bay Area and surrounding areas. We are a family owned business and you will get an experienced plumber on every single call that comes into our office. We are licensed with an impeccable record, have excellent troubleshooting skills, and because we know what we’re doing, will promptly resolve your problem because we are so knowledgeable compared to our competition. We know how to diagnose and troubleshoot even the most difficult of jobs, and can offer solutions to fix it if possible, before replacing, so that in itself will save you money. Because we can work faster than our competition, on jobs that are billed hourly, you will also save money there. We are factory trained and are the representative service techs in our area for ALL water heater brands including but not limited to AO Smith, State, Reliance, Rheem, American, Bradford White, Navien, Rinnai, Takagi, and many more. We are also the area reps for major manufacturing brands of faucets, toilets, sink parts, and any plumbing related issue you have. We not only do plumbing but also sewer and drain cleaning, hydrojetting, in-pipe video inspections, leak locating and pipe locating service. We are also called out by other plumbing companies when they can’t resolve a problem, as well as by our suppliers. Word of mouth is how we get most referrals. The best part is, that our pricing many times is lower than our competition and we have so much more to offer! What are you waiting for? Call us Now to schedule your service call. No job too small!
"Excellent service. Cliff was able to answer all of the questions regarding pricing/installation."
Ed L on February 2021
Since 1994, Performance Plus Plumbing,LLC has been servicing residential and commercial customers in the Northern California Bay Area and surrounding areas. We are a family owned business and you will get an experienced plumber on every single call that comes into our office. We are licensed with an impeccable record, have excellent troubleshooting skills, and because we know what we’re doing, will promptly resolve your problem because we are so knowledgeable compared to our competition. We know how to diagnose and troubleshoot even the most difficult of jobs, and can offer solutions to fix it if possible, before replacing, so that in itself will save you money. Because we can work faster than our competition, on jobs that are billed hourly, you will also save money there. We are factory trained and are the representative service techs in our area for ALL water heater brands including but not limited to AO Smith, State, Reliance, Rheem, American, Bradford White, Navien, Rinnai, Takagi, and many more. We are also the area reps for major manufacturing brands of faucets, toilets, sink parts, and any plumbing related issue you have. We not only do plumbing but also sewer and drain cleaning, hydrojetting, in-pipe video inspections, leak locating and pipe locating service. We are also called out by other plumbing companies when they can’t resolve a problem, as well as by our suppliers. Word of mouth is how we get most referrals. The best part is, that our pricing many times is lower than our competition and we have so much more to offer! What are you waiting for? Call us Now to schedule your service call. No job too small!
"Excellent service. Cliff was able to answer all of the questions regarding pricing/installation."
Ed L on February 2021
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
3 EMPLOYEES. NO SUBS. CHARGES A FLAT RATE. NO TRAVEL CHARGES. NO EXTRA CHARGE FOR AFTER-HOURS SERVICE.
3 EMPLOYEES. NO SUBS. CHARGES A FLAT RATE. NO TRAVEL CHARGES. NO EXTRA CHARGE FOR AFTER-HOURS SERVICE.
Water treatment & purification system repair or services FAQs
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.
- Birmingham
- Phoenix
- Tucson
- Fresno
- Long Beach
- Los Angeles
- Modesto
- Sacramento
- San Diego
- San Francisco
- San Jose
- Denver
- Hartford
- Washington DC
- Fort Lauderdale
- Jacksonville
- Miami
- Orlando
- Tampa
- Atlanta
- Chicago
- Indianapolis
- Louisville
- New Orleans
- Baltimore
- Boston
- Detroit
- Grand Rapids
- Minneapolis
- Saint Paul
- Kansas City
- Saint Louis
- Las Vegas
- Albany
- New York
- Asheville
- Charlotte
- Greensboro
- Raleigh
- Winston Salem
- Cincinnati
- Cleveland
- Columbus
- Oklahoma City
- Portland
- Harrisburg
- Philadelphia
- Pittsburgh
- Providence
- Memphis
- Nashville
- Austin
- Dallas
- El Paso
- Fort Worth
- Houston
- San Antonio
- Salt Lake City
- Norfolk
- Richmond
- Virginia Beach
- Seattle
- Madison
- Milwaukee
Get our Angi-powered app
