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Find Water main install, replace or repairers in Castro Valley

Avatar for JPC Rooter & Plumbing

JPC Rooter & Plumbing

4.82(
46
)
Approved Pro

JPC Rooter & Plumbing

4.82(
46
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
27 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!

"They did a number of things. Braced and restrapped water heater and ran copper line for pressure relief to outside. Unclogged master toilet and reseated. Bolted down second toilet. Reconnected clothes dryer vent. Repaired air gap/garbage disposal and drain line under kitchen sink, crawled under house and remove galvanized pipe straps and replaced with nylon pipe clamps. I was a contractor and used to do this work, o an very critical. They did an outstanding job. Went the extra mile several times. I was expecting a bill for a higher amount but they stuck with their estimate. I recommend them highly and would use them again!!"

cyril k on March 2022

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 did a number of things. Braced and restrapped water heater and ran copper line for pressure relief to outside. Unclogged master toilet and reseated. Bolted down second toilet. Reconnected clothes dryer vent. Repaired air gap/garbage disposal and drain line under kitchen sink, crawled under house and remove galvanized pipe straps and replaced with nylon pipe clamps. I was a contractor and used to do this work, o an very critical. They did an outstanding job. Went the extra mile several times. I was expecting a bill for a higher amount but they stuck with their estimate. I recommend them highly and would use them again!!"

cyril k on March 2022


Avatar for Fito Plumbers, Inc.

Fito Plumbers, Inc.

4.94(
54
)
Approved Pro

Fito Plumbers, Inc.

4.94(
54
)
Approved Pro
Customers say: Quality work
24 years of experience
Free onsite estimate

Fito Plumbers is a family-owned and operated plumbing company which has been servicing the bay area for over 20 years. We serve both residential and commercial properties. We strive to provide the best customer service and support. Our teams consist of experienced and qualified service technicians which use high quality equipment and extensive knowledge to get any job done. Our goal is to provide outstanding services, quality, and put the customer first to complete the project. Our prices are very competitive and our service is superior. We take pride in what we do and the care we provide to our customers. Call us now!

"They worked hard, as soon as they got here they just went straight to work. The work looks really good."

Barbara D on February 2026

Fito Plumbers is a family-owned and operated plumbing company which has been servicing the bay area for over 20 years. We serve both residential and commercial properties. We strive to provide the best customer service and support. Our teams consist of experienced and qualified service technicians which use high quality equipment and extensive knowledge to get any job done. Our goal is to provide outstanding services, quality, and put the customer first to complete the project. Our prices are very competitive and our service is superior. We take pride in what we do and the care we provide to our customers. Call us now!

"They worked hard, as soon as they got here they just went straight to work. The work looks really good."

Barbara D on February 2026


Avatar for Albert Nahman Plumbing, Heating, and Cooling

Albert Nahman Plumbing, Heating, and Cooling

4.63(
622
)
Approved Pro

Albert Nahman Plumbing, Heating, and Cooling

4.63(
622
)
Approved Pro
Customers say: Super punctual
45 years of experience
Warranties offered

Albert Nahman Services was founded in 1981 and has been serving Berkeley, CA and it surrounding areas in all their plumbing and HVAC needs. Each of our technicians went through rigorous training so we can guarantee that you will be receiving the proper service. We are also insured and supply a warranty for our parts for five years and up to twenty years on an re-piping or sewer replacement. Call us now to make your appointment!

"The crew from Albert Nahman did a great job from start to finish. The project was to replace the original ductwork in our 60 year old house. Tom provided excellent advice for the estimate then Bryan’s crew did the job, 2 days, within a week of my acceptance of the proposal. Great work."

Jeff V on February 2026

Albert Nahman Services was founded in 1981 and has been serving Berkeley, CA and it surrounding areas in all their plumbing and HVAC needs. Each of our technicians went through rigorous training so we can guarantee that you will be receiving the proper service. We are also insured and supply a warranty for our parts for five years and up to twenty years on an re-piping or sewer replacement. Call us now to make your appointment!

"The crew from Albert Nahman did a great job from start to finish. The project was to replace the original ductwork in our 60 year old house. Tom provided excellent advice for the estimate then Bryan’s crew did the job, 2 days, within a week of my acceptance of the proposal. Great work."

Jeff V on February 2026


Avatar for Plumbing 1 Builder's Inc

Plumbing 1 Builder's Inc

5.00(
14
)
Approved Pro

Plumbing 1 Builder's Inc

5.00(
14
)
Approved Pro
Super Service Award
15 years of experience
Free onsite estimate

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

"These guys were great. Fixed the issue and went above and beyond with a few extra repairs. Professional and cleaned up everything. I will definitely reach out again for any work in the future."

Casey G on November 2025

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

"These guys were great. Fixed the issue and went above and beyond with a few extra repairs. Professional and cleaned up everything. I will definitely reach out again for any work in the future."

Casey G on November 2025


Avatar for Chandler's Plumbing

Chandler's Plumbing

4.53(
642
)
Approved Pro

Chandler's Plumbing

4.53(
642
)
Approved Pro
Super Service Award
Customers say: Super punctual
25 years of experience
Free onsite estimate

We are the water heater and sewer experts of Santa Clara County offering free estimates, fair rates, and superior workmanship. Our team has been servicing the Bay Area for over 20 years. Our company is licensed, bonded, and insured. Our specialists are equipped, experienced, and provides a full range of services. We guarantee our work and can beat any quote by 10%.

"Performed the job professionally "

Vinita K on March 2026

We are the water heater and sewer experts of Santa Clara County offering free estimates, fair rates, and superior workmanship. Our team has been servicing the Bay Area for over 20 years. Our company is licensed, bonded, and insured. Our specialists are equipped, experienced, and provides a full range of services. We guarantee our work and can beat any quote by 10%.

"Performed the job professionally "

Vinita K on March 2026


Avatar for H K & S Plumbing Co.

H K & S Plumbing Co.

4.73(
76
)
Approved Pro

H K & S Plumbing Co.

4.73(
76
)
Approved Pro
Super Service Award
Customers say: Quick response
26 years of experience
Free onsite estimate

Thank you for choosing H K & S Plumbing Co.! We are committed to providing quality workmanship and superior customer service to all of our existing, and future, clients. We strive to maintain our reputation as a high quality, service oriented company. No job is too big or too small. Call today!

"QUICK RESPONSE, stayed with the commitment, fair pricing, good work, replaced a valve that was not shutting off all the way and did not charge me."

Tim M on February 2026

Thank you for choosing H K & S Plumbing Co.! We are committed to providing quality workmanship and superior customer service to all of our existing, and future, clients. We strive to maintain our reputation as a high quality, service oriented company. No job is too big or too small. Call today!

"QUICK RESPONSE, stayed with the commitment, fair pricing, good work, replaced a valve that was not shutting off all the way and did not charge me."

Tim M on February 2026


Avatar for BAEK CONSTRUCTION

BAEK CONSTRUCTION

5.00(
7
)
Approved Pro

BAEK CONSTRUCTION

5.00(
7
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
24 years of experience

BAEK’s Plumbing & Rooter is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"He was a very nice polite man who listened to my concerns and who will be coming back to do another job soon."

Judith C on June 2023

BAEK’s Plumbing & Rooter is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"He was a very nice polite man who listened to my concerns and who will be coming back to do another job soon."

Judith C on June 2023


EMERGENCY ROOTER & PLUMBING

4.64(
14
)
Approved Pro

EMERGENCY ROOTER & PLUMBING

4.64(
14
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
8 years of experience

EMERGENCY ROOTER & PLUMBING is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Yes, Byron was great. He not only cleared the clog but let us know more about our plumbing."

David Y on December 2025

EMERGENCY ROOTER & PLUMBING is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Yes, Byron was great. He not only cleared the clog but let us know more about our plumbing."

David Y on December 2025


Avatar for Super Brothers Plumbing Heating & Air

Super Brothers Plumbing Heating & Air

4.94(
8
)
Approved Pro

Super Brothers Plumbing Heating & Air

4.94(
8
)
Approved Pro
Super Service Award
Customers say: Quick response
13 years of experience
Free onsite estimate

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.

"Never had such a great experience with any contractor. So grateful to Eugene, Artem, Nick, and Alex not only for the great work they did, but for the care and attention they put in for 3 straight months. My house is built kind of complicatedly and the water heater isn't located in the most accessible place, but they were able to make it work. Not only that, but Eugene found me a new tankless water heater that would also work with my radiant floors - not only saving cost, but space as well. To say they went above and beyond is an understatement. They came back multiple times to make sure work was up to par - never half-assing anything. Really hoping I don't have any reason to need to reach out again soon, but if I do, I know who I'll be calling. Also, special shout out to Jeremy, Karen, and Kathy for their logistical help as well!"

Elizabeth H on November 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.

"Never had such a great experience with any contractor. So grateful to Eugene, Artem, Nick, and Alex not only for the great work they did, but for the care and attention they put in for 3 straight months. My house is built kind of complicatedly and the water heater isn't located in the most accessible place, but they were able to make it work. Not only that, but Eugene found me a new tankless water heater that would also work with my radiant floors - not only saving cost, but space as well. To say they went above and beyond is an understatement. They came back multiple times to make sure work was up to par - never half-assing anything. Really hoping I don't have any reason to need to reach out again soon, but if I do, I know who I'll be calling. Also, special shout out to Jeremy, Karen, and Kathy for their logistical help as well!"

Elizabeth H on November 2025


Avatar for PLUMBING PRODIGY

PLUMBING PRODIGY

5.00(
5
)
Approved Pro

PLUMBING PRODIGY

5.00(
5
)
Approved Pro
2 years of experience
Free onsite estimate

Plumbing Prodigy has over 30 years of experience in the service plumbing trade. Specializing in sewer & drain cleaning as well as water heaters. Plumbing Prodigy started with a purpose to help out people with the most competitively priced rates. Try us once and see for yourself why we have such a loyal customer base.

Plumbing Prodigy has over 30 years of experience in the service plumbing trade. Specializing in sewer & drain cleaning as well as water heaters. Plumbing Prodigy started with a purpose to help out people with the most competitively priced rates. Try us once and see for yourself why we have such a loyal customer base.

Showing 1-10 of 15
FAQs for water main install, replace or repair projects in Castro Valley, 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 Castro Valley, 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.