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Find Water main install, replace or repairers in Diamond Bar

Avatar for Western Rooter & Plumbing
Western Rooter & Plumbing
4.8(
171
)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 1981

Free estimates

Emergency services offered

"Perfect! I called Western Rooter the AM my disposal went out. They were at the house the same day, at the time they stated they would arrive. The work was done efficiently and professionally and completed within an hour. I have called on Western Rooter for many years for various plumbing needs (clogged drains, replace water-heater, replace main water line, etc.) and have always had great, timely service at reasonable $$$."
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%
21 neighbors recently requested a quote
Avatar for McLay Services
McLay Services
4.8(
275
)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 1978

Free estimates

Emergency services offered

"Only good things to say about McLay Services! From scheduling the services call to getting the work done. The technician was up front with pricing and told me only what needed to be repaired on my water heater. He even did a free safety check on my furnace and found a dirty air filter that needed replacement. I will be calling again in the future."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+5

32 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for HARMONY ELECTRIC PLUMBING & AIR INC
HARMONY ELECTRIC PLUMBING & AIR INC
4.9(
25
)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"They called us quickly and got a plumber out within a few days. Super thorough - tested all pipes and water sources to diagnose the problem. They were able to perform maintenance on most bathrooms the same day and improve the water temperature in our showers. Gave helpful, non-biased advice on potential further plumbing improvements. We will likely call this company again for any and all future plumbing needs."
552 neighbors recently requested a quote
Recommended by52%of homeowners
Avatar for Pro Bright Construction Inc
Pro Bright Construction Inc
4.8(
24
)

Serving Diamond Bar, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"Gus at Pro Bright went above and beyond on a Sunday to detect and repair our master bedroom ceiling leak. With water to the house turned off at the street we were desperate to find a contractor who could respond right away. Other contractors offered appointments Monday or Tuesday. Gus responded that he could be here in 2 hours to repair the leaking pipe, but could have Jeff, his water mitigation project manager here within 30 minutes to assess the water damage. These guys were both so professional. They shared the process, timeline and costs, and were prepared to start right away. They promptly moved my disabled husband and his adjustable bed to another room away from the work area assuring his comfort and safety. Gus repaired the overhead leak and turned the water back on. Jeff scheduled the water mitigation process to begin first thing Monday morning. We are especially grateful for the kindness these 2 professionals showed us in our time of need."
Response time5 hrs
Response rate98%
98 neighbors recently requested a quote
Avatar for 1 TOM PLUMBER ANAHEIM / BREA
1 TOM PLUMBER ANAHEIM / BREA
5.0(
21
)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

At 1 Tom Plumber Anaheim/Brea, timing is everything! We are a top rated plumbing , leak detection and water damage repair and restoration company proudly serving the surrounding areas for over 20 years. Our 1st priority is getting you back on track and restoring your property in a timely manner. This includes having our entire team of professionals help you throughout the process. We are unique amongst restoration companies, as our staff includes 20 plus years of professional home and commercial insurance claim adjusters. We pride ourselves in high rate of insurance claim approval because of our knowledge and thx detailed documentation. We make extra effort to get your claim presented completely and approved. \n

Leak Detection
Plumbing
Sewage Cleanup
Leak Detection
Plumbing

+70

Response time8 hrs
Response rate100%
72 neighbors recently requested a quote
Avatar for Alpine Plumbing, Heating, and Air
Alpine Plumbing, Heating, and Air
4.7(
35
)

Serving Diamond Bar, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Emergency services offered

"I Called to get an in person quote for a tankless water heater flush and left this job with a whole house filter and a fridge connection. When Michael first arrived we inspected the tankless unit and tested the water to conclude flushing was not my best option. He then walked me through my options for home filters and we decided on a Halo system. Michael was very well educated on the subject and gave me the best value filter for my needs. He installed the unit the next day in less than a few hours and left me with a flawless work of art. I couldn't be more impressed with the professionalism he brings to this trade! I also requested to hook up a fridge and he did that in what seemed like 30 minutes. He will be the only plumber I call from now on!! Thank you Michael!!!"
Plumbing - Drain Cleaning Project
Sewer cleaned of roots and ready for lining
Prepping pipe for lining by removing massive roots
Mixing resin for liners, this resin gardens to create a solid pipe
Sewer robot in the pipe

+26

Response time9 hrs
10 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for RT Olson Plumbing, Heating and Air Conditioning
RT Olson Plumbing, Heating and Air Conditioning
4.5(
217
)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"I bought a hot water heater to replace the one that calcified due to Anaheim water. Technicians : Marty, Parker and Shane were excellent. I would recommend this company RT Olsen Plumbing Heating and Air Conditioning. They took out my old water heater and halled it away. The new water heater was installed with no problems. I Gave this company and there excellent crew 5 Star"
New AC Installation
Tankless water heater
New Thermostat
Shower head system installation
Helping customer with new water filtration system

+57

Response time9 hrs
1 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for RC's Plumbing
RC's Plumbing
4.6(
33
)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2013

Free estimates

Small jobs welcome

"RC S plumbing we ve hired name Robert to install new toilet and connection water line shut off valve.he is courteous and explained everything what s needs to be done.and repairs in the future of other issue.very thankful for his professional tips."
Old 40 Gallon Water Heater
Replaced This Sink
La Puente,  Water Heater
New Sink and faucet
New valves and garbage disposal

+3

Response time11 hrs
Response rate95%
Recommended by92%of homeowners
Avatar for Do It Right Plumbers, Inc.
Do It Right Plumbers, Inc.
4.1(
600
)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2007

Emergency services offered

Warranties offered

"I was without water when I had my initial contact with Do It Right Plumbing. Three hours later Chris Martinez had installed a new main shut off valve and hose bibb. Chris presented 3 different options for fixing my problem and thoroughly explained what was involved. Chris is a friendly, competent plumber and I am a happy customer!"
OUR WORK
OUR WORK
OUR WORK
OUR WORK
OUR WORK

+1

Response time8 hrs
174 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Rapid Rescue Rooter & Plumbing
Rapid Rescue Rooter & Plumbing
5.0(
12
)

Serving Diamond Bar, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"My water main went out on Christmas Eve leaving me without water, Wes offered to come out on Christmas day to make the repairs. I told him we could wait until the next day, he arrived on time, dug up my very rocky soil to get to the water main and made the repairs. The customer service was great and he explained everything to me every step of the way. The cost was also reasonable. I have asked that he return to make an additional repair later this week. He definitely has a repeat customer."
Old plumbing
Beautiful Bathroom Remodel
Beautiful Bathroom Remodel
Beautiful Bathroom Remodel
Beautiful Bathroom Remodel

+18

Recommended by83%of homeowners
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Showing 1-10 of 350
FAQs for water main install, replace or repair projects in Diamond Bar, CA

Most standard homeowners' policies don’t cover water main line replacement costs because this project is considered wear and tear, not sudden damage. Check your declarations page for exclusions and talk with your agent about add-on service-line coverage if you want help footing the bill for your water main line replacement costs.

Yes—hire a licensed plumber any time the job taps into a city-owned line or local codes. Professional plumbers carry the right permits, tools, and insurance, and they know how to avoid costly mistakes that could flood your yard or trigger fines. Pros can also provide expert recommendations on the type of system and materials that will work best for your situation, and they can guide you on best practices for ongoing maintenance.

The Diamond Bar, CA homeowners’ guide to water main install, replace or repairs

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