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Find Water main install, replace or repairers in Castro Valley

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
30 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
4 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 BAYPRO PLUMBING

BAYPRO PLUMBING

5.00(
10
)
•Approved Pro

BAYPRO PLUMBING

5.00(
10
)
•Approved Pro
1 years of experience

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.

"Eduardo from BayPro Plumbing is the only plumbing professional that I will use. He is trustworthy, hard working and goes the extra mile every time he visits. He gave great advice on getting the right water heater for our needs, and he installed it in half a day. Great experience! "

Tim L on January 2026

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.

"Eduardo from BayPro Plumbing is the only plumbing professional that I will use. He is trustworthy, hard working and goes the extra mile every time he visits. He gave great advice on getting the right water heater for our needs, and he installed it in half a day. Great experience! "

Tim L on January 2026

Avatar for Chandler's Plumbing

Chandler's Plumbing

4.53(
638
)
•Approved Pro

Chandler's Plumbing

4.53(
638
)
•Approved Pro
Super Service Award
Customers say: Super punctual
503 local quotes requested
25 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%.

"Great plumber "

Girish K on January 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%.

"Great plumber "

Girish K on January 2026

Avatar for Corsa Plumbing and Rooter

Corsa Plumbing and Rooter

4.55(
51
)
•Approved Pro

Corsa Plumbing and Rooter

4.55(
51
)
•Approved Pro
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
13 local quotes requested

Don't flush your money down the drain when your plumbing goes out! Trust Corsa Plumbing and Rooter to get it done right. We are available for you day or night for all types of plumbing service.

"I feel that I was very lucky have chosen Corsa Plumbing to do diagnose and replace 2 sewers for me. One in Lafayette and one in Pleasant Hill. Ray, was easy to work with and he did a great job of advising me on the existing problems and explaining what they would do to fix them. The camera inspection of the sewer line and the estimate were free. I was present when he did them. Both of the bids were fair, but do not include the cost of County permits. I will highly recommend you get a bid from Corsa Plumbing. You won’t regret it. You can hardly tell that the sewer was replaced Steve Walsh, retired Realtor and property manager for residential homes."

steve w on August 2025

Don't flush your money down the drain when your plumbing goes out! Trust Corsa Plumbing and Rooter to get it done right. We are available for you day or night for all types of plumbing service.

"I feel that I was very lucky have chosen Corsa Plumbing to do diagnose and replace 2 sewers for me. One in Lafayette and one in Pleasant Hill. Ray, was easy to work with and he did a great job of advising me on the existing problems and explaining what they would do to fix them. The camera inspection of the sewer line and the estimate were free. I was present when he did them. Both of the bids were fair, but do not include the cost of County permits. I will highly recommend you get a bid from Corsa Plumbing. You won’t regret it. You can hardly tell that the sewer was replaced Steve Walsh, retired Realtor and property manager for residential homes."

steve w on August 2025

Avatar for Pacific Coast Home Services

Pacific Coast Home Services

4.43(
225
)
•Approved Pro

Pacific Coast Home Services

4.43(
225
)
•Approved Pro
Customers say: Quality work
37 local quotes requested
15 years of experience

Pacific Coast Home Services, family owned and operated is a client centered company, serving the greater Bay area community.. We're dedicated to providing full service, from skilled caring technicians, servicing your electrical, plumbing, heating and Air. These caring professionals come together come together for one sole purpose, to handle all your repairs, upgrades, installs, and maintenance. Ask your technician how to save money with our Home Protection Plans. We look forward to serving you. 24/7 emergency service

"We recently had our where heater installed, and the whole process went smoothly from start to finish. The technician arrived on time,was perfessional, and explained everything clearly before starting the work. The installation was done effectively, with attention to dental, and everything was left clean. Our new water heater is working perfectly, and we couldn't be happier with the service we received. Definitely would use them again. "

Danielle D on September 2025

Pacific Coast Home Services, family owned and operated is a client centered company, serving the greater Bay area community.. We're dedicated to providing full service, from skilled caring technicians, servicing your electrical, plumbing, heating and Air. These caring professionals come together come together for one sole purpose, to handle all your repairs, upgrades, installs, and maintenance. Ask your technician how to save money with our Home Protection Plans. We look forward to serving you. 24/7 emergency service

"We recently had our where heater installed, and the whole process went smoothly from start to finish. The technician arrived on time,was perfessional, and explained everything clearly before starting the work. The installation was done effectively, with attention to dental, and everything was left clean. Our new water heater is working perfectly, and we couldn't be happier with the service we received. Definitely would use them again. "

Danielle D on September 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
Customers say: Quality work
131 local quotes requested
16 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 AAA Mike Counsil Plumbing and Rooter

AAA Mike Counsil Plumbing and Rooter

4.47(
248
)
•Approved Pro

AAA Mike Counsil Plumbing and Rooter

4.47(
248
)
•Approved Pro
Customers say: Quick response
32 years of experience
Emergency services offered

Mike Counsil Plumbing has been family owned and operated from the start. Our customers are our neighbors, and we are proud to be part of the community. We offer the highest quality of plumbing, and friendliest customer service in the industry. When you want it done right, call Mike Counsil Plumbing. Owner operated since 1994. 50 employees. All technicians drug tested and background checked.

"We've been working with Mike Counsil for over 8 years - clogged drains, water heater, new toilets, and most recently a sewer re-pipe. Yes, they may be more expensive than other companies, but with Mike Counsil you get what you pay for - quality work. A big shout out to Rudy and the whole team - they are hardworking, reliable and courteous."

Karolyn D on January 2026

Mike Counsil Plumbing has been family owned and operated from the start. Our customers are our neighbors, and we are proud to be part of the community. We offer the highest quality of plumbing, and friendliest customer service in the industry. When you want it done right, call Mike Counsil Plumbing. Owner operated since 1994. 50 employees. All technicians drug tested and background checked.

"We've been working with Mike Counsil for over 8 years - clogged drains, water heater, new toilets, and most recently a sewer re-pipe. Yes, they may be more expensive than other companies, but with Mike Counsil you get what you pay for - quality work. A big shout out to Rudy and the whole team - they are hardworking, reliable and courteous."

Karolyn D on January 2026

Avatar for OCEAN PLUMBING

OCEAN PLUMBING

5.00(
4
)
•Approved Pro

OCEAN PLUMBING

5.00(
4
)
•Approved Pro
Super Service Award
14 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 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
91 local quotes requested
13 years of experience

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

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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.

See all articles