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Find Water main install, replace or repairers in Castro Valley

Avatar for OCEAN PLUMBING

OCEAN PLUMBING

5.00(
4
)
Approved Pro

OCEAN PLUMBING

5.00(
4
)
Approved Pro
13 years of experience
Free onsite estimate

Ocean Plumbing is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"He came in time, had all the parts, and was done in less than an hour. He was pleasant, respectful, gave me options, and priced the work fairly. "

Barry C on July 2025

Ocean Plumbing is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"He came in time, had all the parts, and was done in less than an hour. He was pleasant, respectful, gave me options, and priced the work fairly. "

Barry C on July 2025


Avatar for Service 4 Plumbing

Service 4 Plumbing

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Service 4 Plumbing

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
29 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. www.service4plumbing.net

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. www.service4plumbing.net


Avatar for R Plumbing Companies, Inc.

R Plumbing Companies, Inc.

5.00(
3
)
Approved Pro

R Plumbing Companies, Inc.

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

We are 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 baasis of our business

"Helped me right away. Did not have to wait all day."

Julie H on September 2023

We are 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 baasis of our business

"Helped me right away. Did not have to wait all day."

Julie H on September 2023


Avatar for Albert Nahman Plumbing, Heating, and Cooling

Albert Nahman Plumbing, Heating, and Cooling

4.45(
686
)
Approved Pro

Albert Nahman Plumbing, Heating, and Cooling

4.45(
686
)
Approved Pro
Customers say: Super punctual
769 local quotes requested
44 years of experience

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 plumbing technicians came out as promised to assess the leak. They were both very courteous and kind and assessed the damage. I am giving three stars because they estimated the cost to be almost 250% higher than what the actual cost was to fix the issue. I am sure there are customers out there that would just accept any bid however, please get multiple beds for these projects, especially when working with this company as they will inflate the cost to take advantage of the situation. I ended up only paying for the $79 estimate."

Kevin C on September 2025

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 plumbing technicians came out as promised to assess the leak. They were both very courteous and kind and assessed the damage. I am giving three stars because they estimated the cost to be almost 250% higher than what the actual cost was to fix the issue. I am sure there are customers out there that would just accept any bid however, please get multiple beds for these projects, especially when working with this company as they will inflate the cost to take advantage of the situation. I ended up only paying for the $79 estimate."

Kevin C on September 2025


Avatar for Chandler's Plumbing

Chandler's Plumbing

4.53(
629
)
Approved Pro

Chandler's Plumbing

4.53(
629
)
Approved Pro
Super Service Award
Customers say: Super punctual
451 local quotes requested
24 years of experience

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%.

"I had the water line from the street to my house shut off by the water district the day I was leaving for vacation because of a massive leak. I was ok without the water for the day, but we have pets being watched while we are gone and didn't want to return home to shower after a long flight. To keep it short, Chandler's Plumbing called me within minutes of me sending my Angie's request, 4 hours till they were at my house (I'm already over an hour from them to begin with) and a brand new copper line ran over 75ft within 24-28 hours of me sending that first request. To top it off the price was very reasonable and that's coming from someone who is cheap. They did quote me for the single fix or running the new line, but I had galvanized that was corroding where it wasn't leaking yet. Fixing it 1-2 more times would cost more than new copper pipe. Super satisfied, I'll use them in the future."

Daniel B on November 2025

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%.

"I had the water line from the street to my house shut off by the water district the day I was leaving for vacation because of a massive leak. I was ok without the water for the day, but we have pets being watched while we are gone and didn't want to return home to shower after a long flight. To keep it short, Chandler's Plumbing called me within minutes of me sending my Angie's request, 4 hours till they were at my house (I'm already over an hour from them to begin with) and a brand new copper line ran over 75ft within 24-28 hours of me sending that first request. To top it off the price was very reasonable and that's coming from someone who is cheap. They did quote me for the single fix or running the new line, but I had galvanized that was corroding where it wasn't leaking yet. Fixing it 1-2 more times would cost more than new copper pipe. Super satisfied, I'll use them in the future."

Daniel B on November 2025


Avatar for Fito Plumbers, Inc.

Fito Plumbers, Inc.

4.94(
51
)
Approved Pro

Fito Plumbers, Inc.

4.94(
51
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
23 local quotes requested

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!

"He was straightforward, honest I would trust him on any job."

Shane H on November 2025

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!

"He was straightforward, honest I would trust him on any job."

Shane H on November 2025


JLH PLUMBING CO INC

5.00(
1
)
Approved Pro

JLH PLUMBING CO INC

5.00(
1
)
Approved Pro
Free onsite estimate

JLH Plumbing Co Inc is a trusted, licensed plumbing company committed to reliability, responsiveness, and top-tier workmanship. As a Master Plumber–owned business, we specialize in installations and rough-ins, water and sewer main installation, water heater setups, and gas line services. We believe in clear communication, attention to detail, and educating our customers throughout the process. Whether it's a large-scale project or a simple repair, JLH Plumbing Co Inc is dedicated to getting the job done right with integrity and professionalism.

"Not only does Jeremy provide high quality workmanship he shows up on time if not early. I would recommend him for all your plumbing needs. "

Ryan Z on May 2025

JLH Plumbing Co Inc is a trusted, licensed plumbing company committed to reliability, responsiveness, and top-tier workmanship. As a Master Plumber–owned business, we specialize in installations and rough-ins, water and sewer main installation, water heater setups, and gas line services. We believe in clear communication, attention to detail, and educating our customers throughout the process. Whether it's a large-scale project or a simple repair, JLH Plumbing Co Inc is dedicated to getting the job done right with integrity and professionalism.

"Not only does Jeremy provide high quality workmanship he shows up on time if not early. I would recommend him for all your plumbing needs. "

Ryan Z on May 2025


Avatar for Handy Plumbing Man, LLC

Handy Plumbing Man, LLC

4.96(
28
)
Approved Pro

Handy Plumbing Man, LLC

4.96(
28
)
Approved Pro
Super Service Award
Customers say: Quality work
128 local quotes requested
15 years of experience

Our company provides exceptional service to the surrounding areas. Always taking pride our services, striving to execute with excellence, and putting our customer's 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 , you'll be pleased you did. Thank you!

".."

Stephanie E on October 2025

Our company provides exceptional service to the surrounding areas. Always taking pride our services, striving to execute with excellence, and putting our customer's 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 , you'll be pleased you did. Thank you!

".."

Stephanie E on October 2025


Avatar for TrenchFree, Inc.

TrenchFree, Inc.

5.00(
1
)
Approved Pro

TrenchFree, Inc.

5.00(
1
)
Approved Pro
13 years of experience
Free onsite estimate

TrenchFree is a leading underground non-disruptive plumbing and utility services company specializing in the installation, repair, and replacement of sewer mains, water lines, gas lines, and electrical conduits. We provide expert trenchless solutions designed to minimize disruption while ensuring long-lasting, high-quality results. Our team is committed to efficiency, precision, and customer satisfaction, serving both residential and commercial clients with reliable and cost-effective plumbing solutions.

TrenchFree is a leading underground non-disruptive plumbing and utility services company specializing in the installation, repair, and replacement of sewer mains, water lines, gas lines, and electrical conduits. We provide expert trenchless solutions designed to minimize disruption while ensuring long-lasting, high-quality results. Our team is committed to efficiency, precision, and customer satisfaction, serving both residential and commercial clients with reliable and cost-effective plumbing solutions.


Avatar for BAYPRO PLUMBING

BAYPRO PLUMBING

5.00(
6
)
Approved Pro

BAYPRO PLUMBING

5.00(
6
)
Approved Pro

BAYPRO PLUMBING We are 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.

"I had this beautiful bathroom made for my husband who had a serious physical limitations. The bathroom remodel gave him such ease to be able to shower and take care of himself. The young man, Ed, provided service that was top notch. We had an entire remodel of our bathroom from a jet tub to a standing shower with multiple showerheads, including body sprayers, overhead shower and handheld shower with new fixtures put in. He installed all new plumbing, and a pedestal sink to tie the whole new aesthetic and look together. He added handicap rails near the toilet and the shower for ease. He later added a bidet feature into my toilet. Everything is fully functional, water pressure is great and we are so happy with the result. Highly recommended plumber. "

Dianne D on October 2025

BAYPRO PLUMBING We are 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.

"I had this beautiful bathroom made for my husband who had a serious physical limitations. The bathroom remodel gave him such ease to be able to shower and take care of himself. The young man, Ed, provided service that was top notch. We had an entire remodel of our bathroom from a jet tub to a standing shower with multiple showerheads, including body sprayers, overhead shower and handheld shower with new fixtures put in. He installed all new plumbing, and a pedestal sink to tie the whole new aesthetic and look together. He added handicap rails near the toilet and the shower for ease. He later added a bidet feature into my toilet. Everything is fully functional, water pressure is great and we are so happy with the result. Highly recommended plumber. "

Dianne D on October 2025

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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.