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Find Water main install, replace or repairers in Diamond Bar

Avatar for Your Plumbing Solution, Corp.

Your Plumbing Solution, Corp.

4.14(
54
)
Approved Pro

Your Plumbing Solution, Corp.

4.14(
54
)
Approved Pro
Customers say: Quality work
22 years of experience
Free onsite estimate

Your Plumbing Solution, Corp. is a locally owned and operated company that has been in business since 2004 and has 33 years of experience from our Master Plumber Michael Cordova. We install confidence and are here for all your plumbing needs. We treat each job as if it were our own home. Call us today!

"The only suggestion I have is that they could do a better job doing after clean up. Need to invest in a portable vacuum cleaner. Work is excellent though. Miguel is an excellent plumber and Luis also did a good job! Both were very professional."

Gregory A on November 2020

Your Plumbing Solution, Corp. is a locally owned and operated company that has been in business since 2004 and has 33 years of experience from our Master Plumber Michael Cordova. We install confidence and are here for all your plumbing needs. We treat each job as if it were our own home. Call us today!

"The only suggestion I have is that they could do a better job doing after clean up. Need to invest in a portable vacuum cleaner. Work is excellent though. Miguel is an excellent plumber and Luis also did a good job! Both were very professional."

Gregory A on November 2020


Avatar for Cruz Plumbing and Rooter Services

Cruz Plumbing and Rooter Services

4.92(
13
)
Approved Pro

Cruz Plumbing and Rooter Services

4.92(
13
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
24 years of experience

Cruz Plumbing and Rooter Services began our business with the main focus on Customer Service. It is our goal to treat every client as family. We will answer each question, giving you the confidence in our services, repairs and pricing. Our pride is to provide our customers with the information for them to be able to make informed, educated decisions when it comes to their plumbing service needs. Our team has been highly trained in all jobs, large or small, and is in contact with myself to ensure the job is completed to the stated specifics. We thank you for selecting Cruz Plumbing and Rooter Services. We appreciate your call to give us the opportunity to provide you with the best services and pricing available. Christian Cruz

"Very Professional and knowledgeable with plumbing. Mr Cruz provided quick service and understood why we wanted this project done quickly to facilitate my mother's handicap situation. Hoping to give him more business in the future. Thank You"

Kaizad A on June 2022

Cruz Plumbing and Rooter Services began our business with the main focus on Customer Service. It is our goal to treat every client as family. We will answer each question, giving you the confidence in our services, repairs and pricing. Our pride is to provide our customers with the information for them to be able to make informed, educated decisions when it comes to their plumbing service needs. Our team has been highly trained in all jobs, large or small, and is in contact with myself to ensure the job is completed to the stated specifics. We thank you for selecting Cruz Plumbing and Rooter Services. We appreciate your call to give us the opportunity to provide you with the best services and pricing available. Christian Cruz

"Very Professional and knowledgeable with plumbing. Mr Cruz provided quick service and understood why we wanted this project done quickly to facilitate my mother's handicap situation. Hoping to give him more business in the future. Thank You"

Kaizad A on June 2022


Avatar for Liquid Plumbing, Inc.

Liquid Plumbing, Inc.

4.92(
25
)
Approved Pro

Liquid Plumbing, Inc.

4.92(
25
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
23 years of experience

Serving Orange County since 1976, we deliver fast same-day service, upfront transparent pricing, and honest, reliable solutions for all your residential plumbing needs. Our experienced, licensed, bonded, and insured technicians specialize in a wide range of services, including leak detection and repair, tank and tankless water heater installation and maintenance, heat pump water heater installation, whole-house repipes, drain cleaning, slab leak detection and repair, faucet/toilet/fixture repairs and installations, garbage disposal services, water filtration systems, water softener systems, earthquake valves, garbage disposals, water shutoff off valves, sewer line inspections, and emergency plumbing repairs. We proudly speak Spanish / ¡Hablamos español! Whether you’re in Anaheim, Irvine, Newport Beach, Villa Park, San Clemente, Yorba Linda, Dana Point, Laguna Beach, Orange, CA, or anywhere across Orange County, call Liquid Plumbing today for dependable service you can count on.

"Came up with a unique way to fix it which made all the sense in the world and am completely happy with them."

Terry F on September 2025

Serving Orange County since 1976, we deliver fast same-day service, upfront transparent pricing, and honest, reliable solutions for all your residential plumbing needs. Our experienced, licensed, bonded, and insured technicians specialize in a wide range of services, including leak detection and repair, tank and tankless water heater installation and maintenance, heat pump water heater installation, whole-house repipes, drain cleaning, slab leak detection and repair, faucet/toilet/fixture repairs and installations, garbage disposal services, water filtration systems, water softener systems, earthquake valves, garbage disposals, water shutoff off valves, sewer line inspections, and emergency plumbing repairs. We proudly speak Spanish / ¡Hablamos español! Whether you’re in Anaheim, Irvine, Newport Beach, Villa Park, San Clemente, Yorba Linda, Dana Point, Laguna Beach, Orange, CA, or anywhere across Orange County, call Liquid Plumbing today for dependable service you can count on.

"Came up with a unique way to fix it which made all the sense in the world and am completely happy with them."

Terry F on September 2025


Avatar for IRC Plumbing Inc.

IRC Plumbing Inc.

4.91(
11
)
Approved Pro

IRC Plumbing Inc.

4.91(
11
)
Approved Pro
20 years of experience
Free onsite estimate

IRC Plumbing Inc. has been providing the highest quality plumbing service in La habra CA since 2012, We handle everything from leaky faucets, sewer line repair, and fixture installation to re-piping. There are hundreds of less-than-reputable ?plumbers? out there who?ll take your money and leave you with plumbing worse than you started with, or even good plumbers who will take advantage of you knowing that you?re in a tight spot. We never sacrifice quality for cost!

"I couldn’t be happier with the service I received. Ismael arrived right on time, immediately put me at ease, and took the time to clearly explain everything before and during the repair. What could have been a really stressful clogged drain issue turned into a complete anxiety-free experience thanks to his professionalism and calm approach. The work was done efficiently and thoroughly, and quickly. 10 outta 10 would definitely recommend! Thanks Ismael!"

Victor A on December 2025

IRC Plumbing Inc. has been providing the highest quality plumbing service in La habra CA since 2012, We handle everything from leaky faucets, sewer line repair, and fixture installation to re-piping. There are hundreds of less-than-reputable ?plumbers? out there who?ll take your money and leave you with plumbing worse than you started with, or even good plumbers who will take advantage of you knowing that you?re in a tight spot. We never sacrifice quality for cost!

"I couldn’t be happier with the service I received. Ismael arrived right on time, immediately put me at ease, and took the time to clearly explain everything before and during the repair. What could have been a really stressful clogged drain issue turned into a complete anxiety-free experience thanks to his professionalism and calm approach. The work was done efficiently and thoroughly, and quickly. 10 outta 10 would definitely recommend! Thanks Ismael!"

Victor A on December 2025


"The work performed was excellent, but I felt they were expensive"

Kathy W on May 2024

At Top Notch Plumbing Inc. we are your premiere source for Plumbing Since 2016 our company has offered the finest in craftsmanship and quality. For the best of the best call today for your next project.

"The work performed was excellent, but I felt they were expensive"

Kathy W on May 2024


Avatar for Tru Plumbing Mechanical

Tru Plumbing Mechanical

5.00(
1
)
Approved Pro

Tru Plumbing Mechanical

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

Tru Plumbing Mechanical is veteran and family owned and operated with 30 years of combined experience. We provide homeowners and commercial businesses with plumbing services 24 hours a day., 7 days a week. We can assist you with a wide range of plumbing services. Tru Plumbing Mechanical has the training and experience to help resolve major plumbing and sewer issues at fractions of the cost. We are licensed, bonded and insured professionals that can resolve any plumbing issue you are encountered with. Call us at (562)991-3805 for Fast, Friendly Service. The team at Tru Plumbing Mechanical have the technical skills to resolve all plumbing issues you may have along with preventive tips and maintenance ideas to make your plumbing last for a long time. We set goals to provide all families with a piece of mind and ensure everyone we encounter that they can feel comfortable in knowing that their trust and confidence is what we set out to accomplish.

"Iâ m not going to go on about what was the plumbing issue and how it got resolved. What I am going to say is that Johnny from Tru Plumbing is the most honest, hardworking, helpful plumber on this earth! He treats your house and problems as if they were his own! Johnny has gone back and forth, spent more time than necessary to solve our root problems and his communication skills are beyond any other plumber. He answers the phone practically in the middle of the night even! I would recommend calling him for all your plumbing needs. Heâ s fixed gas leaks, broken pipes, broken sewer lines, clogged sewer lines for us and much more! Thank you Johnny"

Fathima T on May 2023

Tru Plumbing Mechanical is veteran and family owned and operated with 30 years of combined experience. We provide homeowners and commercial businesses with plumbing services 24 hours a day., 7 days a week. We can assist you with a wide range of plumbing services. Tru Plumbing Mechanical has the training and experience to help resolve major plumbing and sewer issues at fractions of the cost. We are licensed, bonded and insured professionals that can resolve any plumbing issue you are encountered with. Call us at (562)991-3805 for Fast, Friendly Service. The team at Tru Plumbing Mechanical have the technical skills to resolve all plumbing issues you may have along with preventive tips and maintenance ideas to make your plumbing last for a long time. We set goals to provide all families with a piece of mind and ensure everyone we encounter that they can feel comfortable in knowing that their trust and confidence is what we set out to accomplish.

"Iâ m not going to go on about what was the plumbing issue and how it got resolved. What I am going to say is that Johnny from Tru Plumbing is the most honest, hardworking, helpful plumber on this earth! He treats your house and problems as if they were his own! Johnny has gone back and forth, spent more time than necessary to solve our root problems and his communication skills are beyond any other plumber. He answers the phone practically in the middle of the night even! I would recommend calling him for all your plumbing needs. Heâ s fixed gas leaks, broken pipes, broken sewer lines, clogged sewer lines for us and much more! Thank you Johnny"

Fathima T on May 2023


Avatar for Rooter Warrior Plumbing & Drain Cleaning - Home  Facebook

Rooter Warrior Plumbing & Drain Cleaning - Home Facebook

5.00(
1
)
Approved Pro

Rooter Warrior Plumbing & Drain Cleaning - Home Facebook

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

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! Book with us online, or feel free to give us a call today!

"Very helpful but not pushy about parts made me feel very comfortable."

Alax M on November 2018

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! Book with us online, or feel free to give us a call today!

"Very helpful but not pushy about parts made me feel very comfortable."

Alax M on November 2018


Avatar for Do It Right Plumbers, Inc.

Do It Right Plumbers, Inc.

4.42(
489
)
Approved Pro

Do It Right Plumbers, Inc.

4.42(
489
)
Approved Pro
Customers say: True professional
126 local quotes requested
19 years of experience

Do It Right Plumbers, Inc., started with the mission of providing customers with the highest quality and experience possible. With our company, you will no longer experience a plumber that talks, looks, and smells like the average plumber. Our technicians are professional, courteous, and knowledgeable and are an integral part of our existence as a business. We value our employees and, in turn, they carry out our mission of providing the best experience possible to all of our customers throughout Orange County, Santa Ana, and Tustin. Our goal is to provide you with a WOW experience every time so that you consider us your family plumber for years to come.

"Joe from Do It Right Plumbers was great. Fast and efficient."

DAVID S on September 2025

Do It Right Plumbers, Inc., started with the mission of providing customers with the highest quality and experience possible. With our company, you will no longer experience a plumber that talks, looks, and smells like the average plumber. Our technicians are professional, courteous, and knowledgeable and are an integral part of our existence as a business. We value our employees and, in turn, they carry out our mission of providing the best experience possible to all of our customers throughout Orange County, Santa Ana, and Tustin. Our goal is to provide you with a WOW experience every time so that you consider us your family plumber for years to come.

"Joe from Do It Right Plumbers was great. Fast and efficient."

DAVID S on September 2025


Avatar for Platinum Pro Plumbing And Rooter

Platinum Pro Plumbing And Rooter

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Platinum Pro Plumbing And Rooter

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
10 local quotes requested
1 years of experience

Platinum Pro Plumbing & Rooter Corp is a reliable, full-service plumbing and drain company committed to delivering top-tier workmanship and honest service. With years of hands-on experience, our licensed professionals specialize in everything from routine plumbing repairs and drain cleaning to complex rooter services and emergency calls. We take pride in showing up on time, diagnosing problems accurately, and providing long-lasting solutions—not quick fixes. Using modern equipment and proven techniques, we ensure every job is completed efficiently, safely, and to the highest industry standards. At Platinum Pro Plumbing & Rooter Corp, customer satisfaction is our priority. We believe in clear communication, fair pricing, and treating every home or business with the respect it deserves. When you need dependable plumbing done right the first time, you can count on Platinum Pro.

Platinum Pro Plumbing & Rooter Corp is a reliable, full-service plumbing and drain company committed to delivering top-tier workmanship and honest service. With years of hands-on experience, our licensed professionals specialize in everything from routine plumbing repairs and drain cleaning to complex rooter services and emergency calls. We take pride in showing up on time, diagnosing problems accurately, and providing long-lasting solutions—not quick fixes. Using modern equipment and proven techniques, we ensure every job is completed efficiently, safely, and to the highest industry standards. At Platinum Pro Plumbing & Rooter Corp, customer satisfaction is our priority. We believe in clear communication, fair pricing, and treating every home or business with the respect it deserves. When you need dependable plumbing done right the first time, you can count on Platinum Pro.


Avatar for Accurate Electric, Plumbing, Heating and Air

Accurate Electric, Plumbing, Heating and Air

4.75(
10
)
Approved Pro

Accurate Electric, Plumbing, Heating and Air

4.75(
10
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
46 local quotes requested

Please see our Special Offers and Promotions, for a limited time only! We service the San Gabriel valley. Owner Jeff Seale has been in the construction field since 1989. When he was starting out, he witnessed other contractors who were not focused on customer service. They either didn't complete the work correctly or they charged customers for work that was unnecessary. Jeff believed that customers deserved service that was both dependable and professional. Accurate, born out of the need for committed excellence and communication. We pride ourselves on an outstanding record of quality service. Our experience is testament to the level of service and quality you'll get when you choose Accurate for your plumbing needs. We have a staff of highly talented and motivated individuals that are eager to help you with all of your needs. We are excited you have expressed an interest in our services! We look forward to working with you.

"."

AJ B on August 2009

Please see our Special Offers and Promotions, for a limited time only! We service the San Gabriel valley. Owner Jeff Seale has been in the construction field since 1989. When he was starting out, he witnessed other contractors who were not focused on customer service. They either didn't complete the work correctly or they charged customers for work that was unnecessary. Jeff believed that customers deserved service that was both dependable and professional. Accurate, born out of the need for committed excellence and communication. We pride ourselves on an outstanding record of quality service. Our experience is testament to the level of service and quality you'll get when you choose Accurate for your plumbing needs. We have a staff of highly talented and motivated individuals that are eager to help you with all of your needs. We are excited you have expressed an interest in our services! We look forward to working with you.

"."

AJ B on August 2009

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FAQs for water main install, replace or repair projects in Diamond Bar, CA

If you notice puddles or standing water in your yard, a sudden drop in water pressure, cracks forming in your foundation, frequent clogs in your plumbing fixtures, or water that looks or smells unusual, you might have a leak in your main water line. These signs mean it's time to call a professional to evaluate the issue and prevent further damage.

A professional water main inspection is a comprehensive evaluation performed by a licensed plumber who checks every section of your plumbing system. The inspection costs $165 and uses advanced diagnostic techniques to identify hidden leaks or wear. This service clarifies the exact condition of your water main, enabling precise repairs that prevent future damage and ensure the overall health of your plumbing system.

Protect your water main by scheduling a cleaning and inspection every two to five years. The average cost of a sewer line cleaning is $400. It’s also important to never dig in your yard without first calling the dig line (811) to ensure you don't accidentally hit the water or sewer lines. Watch for soil erosion, low water pressure, or wet spots in your yard, and take immediate action if you suspect a leak. Remember, the longer you leave it, the worse the problem gets and the more costly it is to fix.

When properly maintained, your water main is engineered to remain functional for 50 years or longer. A durable water service in excellent condition should consistently perform without major issues for half a century. In contrast, metal pipes exposed to acidic soil corrode faster, whereas modern plastic pipes resist corrosion and function for decades beyond metal alternatives. Regular maintenance and inspections are essential for confirming your system’s longevity.

No, homeowners insurance does not cover the cost to repair a water main. Insurers fund only sudden, unforeseen events like a burst pipe and exclude gradual issues or normal wear and tear. Damage resulting from leaks, such as mold remediation or property claims, is not covered. It is essential to contact your insurance provider immediately to confirm your policy’s details and any potential adjustments needed.

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.