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Top-Rated Water treatment & purification system repair or service pros in Manhattan Beach - Updated Nov 2026

Avatar for Pier Water Solutions LLC
Pier Water Solutions LLC
4.8(
28
)
Water Treatment & Purification System - Repair or Service

Serving Manhattan Beach, CA and surrounding areas

Approved

In business since 1960

Free estimates

Warranties offered

"Great communication in arranging a time for service. Walked through in detail what he could do and was very communicative in asking for feedback where needed. Tyler was efficient, thorough and completed the installation of our hot/cold water system along with RO system."
Commercial RO
Commercial RO System
WATER SOFTENER REPLACEMENT
WATER SOFTENER REPLACEMENT
EVERPURE WHOLE HOUSE SYSTEM

+2

Response time2 days
5 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Western Rooter & Plumbing
Western Rooter & Plumbing
4.8(
172
)
Water Treatment & Purification System - Repair or Service

Serving Manhattan Beach, CA and surrounding areas

Approved

In business since 1981

Free estimates

Emergency services offered

"I called because I could not turn off the hot water. They said, someone, would be there within 2 hours. The plumber arrived in less than 90 minutes. He was neat and clean. He set right to work. After 15 minutes or so he had taken apart the old faucet tried to make a repair but the faucet was not repairable - not surprising since the faucet was quite old. I asked if he could replace the faucet but the one I wanted he did not have on his vehicle. He called the office and they had one in stock. He was gone about 40 minutes. He installed the new faucet in about 20 minutes. He cleaned up after himself."
Ruben installs a new drainage system under a customers home. Working in a crawl space is rough, but we do what is needed.
Backing up? Got roots? Blast those roots out with a Hydro Jetter! We use a wart hog nozzle that combines controlled rotation with a unique 8 jet cutting configuration optimized for removing roots. It’s better with a jetter! Call us! We got this! ??
Sewer Line Camera
No drain clog too big or small, Western Rooter covers them all!
Justin clearing a Kitchen sink back-up after the Memorial holiday.
HALO 5 whole house water filtration system.

+542

Response time12 hrs
Response rate100%
5 neighbors recently requested a quote
Avatar for Good Guy Plumbing
Good Guy Plumbing
4.7(
82
)
Water Treatment & Purification System - Repair or Service

Serving Manhattan Beach, CA and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

"Excellent job! Good Guy Plumbing fixed my leaking water heater quickly and thoroughly for a fair price. Spoke with Robert over the phone and David came out to do the repair. Both were professional, knowledgeable and kind. I recently bought a new townhome and will be doing business with them for any future plumbing needs. Many thanks to David, Robert and Good Guy Plumbing. It’s such a relief knowing there are good, honest plumbers I can count on."
Good Guy Van!
Shower Valve Install
New 40 Gallon Water Heater Installed
Response time5 hrs
Recommended by94%of homeowners
Avatar for Pure Water 1
Pure Water 1
4.6(
10
)
Water Treatment & Purification System - Repair or Service

Serving Manhattan Beach, CA and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"Really great experience with Bryan from Pure Water 1; he was friendly and very knowledgeable. His repair exceeded my expectations, and I highly recommend Pure Water 1. It is hard to find someone with this level of expertise nowadays! Hire Pure Water 1... This company is the real deal!!!"
Commercial Water Softening System
Commercial Water Softening System
650 Linear foot of Pre-Piping to install Softener
Bulk & Bottling Plant
Aqua Star Dominican Republic

+26

Response time7 hrs
Response rate91%
10 neighbors recently requested a quote
Avatar for Clear All Rooter Plumbing
Clear All Rooter Plumbing
4.4(
473
)
Water Treatment & Purification System - Repair or Service

Serving Manhattan Beach, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"2 water heaters replaced. Very responsive, parts and service available very quickly. Also very careful indoors to install water heater upstairs. Quality work completed on time. Will definitively call again."
New Gas line
Trench
Metter connection
New earth Quake shut off Valve
New trench less  pipe

+92

Response time4 hrs
Response rate85%
33 neighbors recently requested a quote
Avatar for One Water Systems
One Water Systems
4.7(
49
)
Water Treatment & Purification System - Repair or Service

Serving Manhattan Beach, CA and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"After speaking with Kevin (CEO) about the merits of the One Water System, and my own online followup, I bit, and was scheduled for installation 5 days later. Juan, the installer was on time, courteous, self-effacing, humorous, knowledgable and highly skilled. He replaced the ugly functioning plumbing (piping) with a more contoured professional appearance. After the system instalation, function test, old water softener packed and area cleaned. I was given an outline of positives results to look for.  And, as of 2 weeks after installation, I am very pleased with results. Faucet run faster, wife says hair and skin feels better. Good professional results from beginning to end.
"
April 2013 Install
April 2013 Install
Valley Center Install
Additional Photos
Additional Photos

+11

Recommended by89%of homeowners
Avatar for Mr. Plumber Man
Mr. Plumber Man
5.0(
18
)
Water Treatment & Purification System - Repair or Service

Serving Manhattan Beach, CA and surrounding areas

In business since 2004

Emergency services offered

"Gabriel is an outstanding plumber. He is hard-working, honest and professional. His knowledge of repair/renovation is vast. He is able to fix or actually perform new construction altogether. I highly recommend him without reservation. Thank you so very much Gabriel! ???"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+31

Recommended by100%of homeowners
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FAQs for water treatment & purification system repair or service projects in Manhattan Beach, 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 Manhattan Beach, 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.