Top-rated water main install, replace or repairers.

Get matched with top water main install, replace or repairers in your area

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Water main install, replace or repairers in Castro Valley

JLH PLUMBING CO INC

1719 LA SALLE AVENUE
5.00(
1
)
Approved Pro

JLH PLUMBING CO INC

1719 LA SALLE AVENUE
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 Plumbing 1 Builder's Inc

Plumbing 1 Builder's Inc

25125 Santa Clara St E106
5.00(
8
)
Approved Pro

Plumbing 1 Builder's Inc

25125 Santa Clara St E106
5.00(
8
)
Approved Pro
126 local quotes requested
14 years of experience

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!

"Leo and his crew were very professional and on time. The replacement of the old galvanized pipes was seamless. "

Mark H on August 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!

"Leo and his crew were very professional and on time. The replacement of the old galvanized pipes was seamless. "

Mark H on August 2025


Avatar for Service 4 Plumbing

Service 4 Plumbing

2258 Marina Blvd
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Service 4 Plumbing

2258 Marina Blvd
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.

202 Kingswood Ave
5.00(
3
)
Approved Pro

R Plumbing Companies, Inc.

202 Kingswood Ave
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 Fito Plumbers, Inc.

Fito Plumbers, Inc.

2020 Hill Ave
4.95(
49
)
Approved Pro

Fito Plumbers, Inc.

2020 Hill Ave
4.95(
49
)
Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
12 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!

""

Scott P on February 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!

""

Scott P on February 2025


Avatar for Chandler's Plumbing

Chandler's Plumbing

2230 Will Wool Dr
4.53(
620
)
Approved Pro

Chandler's Plumbing

2230 Will Wool Dr
4.53(
620
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
430 local quotes requested

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%.

"Ishmael was eager for my business and came out right away to assess and provide a VERY competitive bid for the job. After agreeing on the work, price, and date his team showed up on time and did a great job with replacing my main water pipe from the street to the house. After completion they made sure my landscaping was as back to normal as possible and I did not have to do any extra cleanup. Fantastic service. Would highly recommend."

Gabriel C on August 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%.

"Ishmael was eager for my business and came out right away to assess and provide a VERY competitive bid for the job. After agreeing on the work, price, and date his team showed up on time and did a great job with replacing my main water pipe from the street to the house. After completion they made sure my landscaping was as back to normal as possible and I did not have to do any extra cleanup. Fantastic service. Would highly recommend."

Gabriel C on August 2025


Avatar for TrenchFree, Inc.

TrenchFree, Inc.

1941 Stone Avenue
5.00(
1
)
Approved Pro

TrenchFree, Inc.

1941 Stone Avenue
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 Handy Plumbing Man, LLC

Handy Plumbing Man, LLC

1011 American St
4.96(
27
)
Approved Pro

Handy Plumbing Man, LLC

1011 American St
4.96(
27
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
99 local quotes requested

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!

"I love these guys! They were attentive to all my needs and helped me feel at ease with the installation. 100/10 service!"

Olive F on June 2024

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!

"I love these guys! They were attentive to all my needs and helped me feel at ease with the installation. 100/10 service!"

Olive F on June 2024


Avatar for Malachi Plumbing, Inc.

Malachi Plumbing, Inc.

4240 Machado Ln
5.00(
3
)
Approved Pro

Malachi Plumbing, Inc.

4240 Machado Ln
5.00(
3
)
Approved Pro
21 local quotes requested
7 years of experience

At Malachi Plumbing, 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.

"Very through and professional!"

Angel R on July 2025

At Malachi Plumbing, 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.

"Very through and professional!"

Angel R on July 2025


Avatar for Oak Plumbing

Oak Plumbing

3852 Industrial Way
4.63(
467
)
Approved Pro

Oak Plumbing

3852 Industrial Way
4.63(
467
)
Approved Pro
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
81 local quotes requested

Oak 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. Our customer's safety is extremely important, which is why all of our technicians are fully trained, background checked, and drug tested.

"Malik was very punctual, polite and went into detail about the work, what it will require and estimate time on how long the job will take. I am happy with the work and for sure hired Oak Plumbing for any future work, highly recommended them."

Marco G on April 2025

Oak 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. Our customer's safety is extremely important, which is why all of our technicians are fully trained, background checked, and drug tested.

"Malik was very punctual, polite and went into detail about the work, what it will require and estimate time on how long the job will take. I am happy with the work and for sure hired Oak Plumbing for any future work, highly recommended them."

Marco G on April 2025

...
Showing 1-10 of 970
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.
water falling from modern bathroom faucet
Aug 22, 2025
Aug 22, 2025
Discover what impacts the cost of replacing a home plumbing stack, from materials and labor to DIY vs. professional installation considerations.
A father with his daughter filling tub in bathroom
Apr 16, 2024
Apr 16, 2024
HomeAdvisor’s Bathtub Faucet Repair or Replacement Cost Guide explains how much tub faucets cost. Find out what factors affect the final price.
new drinking fountain spouting water
Apr 16, 2024
Apr 16, 2024
HomeAdvisor's Drinking Fountain Cost Guide explores the price for units and labor. Find the cost of water fountain installation in indoor and outdoor spaces.
drain line from home leaking water
Nov 16, 2024
Nov 16, 2024
Discover the cost to replace drain pipes in a house based on common cost factors such as the pipe type, location, labor fees, and additional repairs.
sump pump in basement of house
Dec 10, 2024
Dec 10, 2024
Understand sump pump repair cost factors, such as submersible vs. pedestal pumps, the type of repair or faulty part, and more with our cost guide.
modern bathroom remodel with shower converted from bathtub
Feb 10, 2025
Feb 10, 2025
Read more about the average price to replace a bathtub with a walk-in shower. Explore average costs to remove a tub and install a new shower stall.