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Find Water main install, replace or repairers in Knightsen

Avatar for Oak Plumbing

Oak Plumbing

4.63(
470
)
•Approved Pro

Oak Plumbing

4.63(
470
)
•Approved Pro
Super Service Award
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
152 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.

"A troublesome shower drain was resolved quickly by Oak Plumbing. I want to recognize Niles, Harris, Jessy, and Amari for their great work. Niles inspected the crawlspace, measured every line, and gave me a fair quote based on my home’s actual layout. Harris cleared space for the new pipes, sketched the floor plan, and confirmed materials. Jessy and Amari replaced all horizontal drain lines—including the garage sink, washer, kitchen sink, two toilets, shower, and two sinks—in tough conditions under the house. This started after another company gave me a flat-fee quote based on “two bathrooms.” Oak Plumbing’s quote was more detailed and more accurate for my 1950s home with 1.5 baths and mixed old materials. Their bid was over 10% better, and I left a deposit that day. I’m grateful for how quickly they solved the problem, especially days before Thanksgiving. As a single mother who relies on Angie’s List, this experience fully met expectations. I highly recommend Oak Plumbing."

Geanie C on November 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.

"A troublesome shower drain was resolved quickly by Oak Plumbing. I want to recognize Niles, Harris, Jessy, and Amari for their great work. Niles inspected the crawlspace, measured every line, and gave me a fair quote based on my home’s actual layout. Harris cleared space for the new pipes, sketched the floor plan, and confirmed materials. Jessy and Amari replaced all horizontal drain lines—including the garage sink, washer, kitchen sink, two toilets, shower, and two sinks—in tough conditions under the house. This started after another company gave me a flat-fee quote based on “two bathrooms.” Oak Plumbing’s quote was more detailed and more accurate for my 1950s home with 1.5 baths and mixed old materials. Their bid was over 10% better, and I left a deposit that day. I’m grateful for how quickly they solved the problem, especially days before Thanksgiving. As a single mother who relies on Angie’s List, this experience fully met expectations. I highly recommend Oak Plumbing."

Geanie C on November 2025

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
465 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 Beastbay Plumbing

Beastbay Plumbing

4.66(
189
)
•Approved Pro

Beastbay Plumbing

4.66(
189
)
•Approved Pro
Customers say: True professional
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
48 local quotes requested

Welcome to Beastbay Plumbing! We are committed to exceeding your expectations. We specialize in all plumbing needs. Whether its a regular or On Demand water heater, water filtration or water/drain re-pipe we can handle the job. We will always give you more that one option and guarantee customer satisfaction. We take pride in diagnosing problems and offering solutions that fit your needs. You can book appointment here (highlight, copy and paste link): https://bit.ly/3SxIfar

"Good experience "

Leiloni M on December 2025

Welcome to Beastbay Plumbing! We are committed to exceeding your expectations. We specialize in all plumbing needs. Whether its a regular or On Demand water heater, water filtration or water/drain re-pipe we can handle the job. We will always give you more that one option and guarantee customer satisfaction. We take pride in diagnosing problems and offering solutions that fit your needs. You can book appointment here (highlight, copy and paste link): https://bit.ly/3SxIfar

"Good experience "

Leiloni M on December 2025

Avatar for Ag plumbing co

Ag plumbing co

5.00(
4
)
•Approved Pro

Ag plumbing co

5.00(
4
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
Free onsite estimate

We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"He responded quickly, gave quote he stuck to, set up time for work and kept me informed about arrival. Was clean and neat in appearance. Did work professionally."

Carol W on June 2024

We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"He responded quickly, gave quote he stuck to, set up time for work and kept me informed about arrival. Was clean and neat in appearance. Did work professionally."

Carol W on June 2024

Avatar for Leegwater Building & Development, Inc.

Leegwater Building & Development, Inc.

5.00(
1
)

Leegwater Building & Development, Inc.

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

As a design-build company, we manage your project from inception to warranty. With a proven team of professional designers, architects, and dependable subcontractors at our disposal, we make the process easy for you. We handle every phase of the design/build process. -Idea generation -Budgeting -Project design -Approval and permit process -Construction -Warranty We take responsibility for the entire process, communicating with you every step of the way. We provide you with your own project portfolio complete with a timeline, and support materials to help you with any design and purchasing decisions you need to make.

As a design-build company, we manage your project from inception to warranty. With a proven team of professional designers, architects, and dependable subcontractors at our disposal, we make the process easy for you. We handle every phase of the design/build process. -Idea generation -Budgeting -Project design -Approval and permit process -Construction -Warranty We take responsibility for the entire process, communicating with you every step of the way. We provide you with your own project portfolio complete with a timeline, and support materials to help you with any design and purchasing decisions you need to make.

QUANTUM HARDWARE LLC

No reviews yet

QUANTUM HARDWARE LLC

No reviews yet
15 years of experience

We are a manufacturing factory that deals with hinges and drawer slides. Our benefits to you --There are no bulk requirements to get our low factory prices --There are no contracts, allowing you to buy as much as you need, when you need without being tied down --With 2 points above you save on warehouse space which adds ups to incredible savings over all

We are a manufacturing factory that deals with hinges and drawer slides. Our benefits to you --There are no bulk requirements to get our low factory prices --There are no contracts, allowing you to buy as much as you need, when you need without being tied down --With 2 points above you save on warehouse space which adds ups to incredible savings over all

Avatar for branchhandyman.com

branchhandyman.com

No reviews yet

branchhandyman.com

No reviews yet
32 years of experience

Honesty, integrity, and Quality Workmanship Guarantee: On schedule completion Cost-effective process from beginning to end Final product exceeds expectations

Honesty, integrity, and Quality Workmanship Guarantee: On schedule completion Cost-effective process from beginning to end Final product exceeds expectations

Avatar for NWP Heating and Air

NWP Heating and Air

4.53(
154
)

NWP Heating and Air

4.53(
154
)
Customers say: True professional
25 years of experience

Northwest Pacific Heating and Air Conditioning (NWP) is a family owned business that has been operating locally for over 30 years. We pride ourselves in quality customer service, customer satisfaction, and helping to improve the environment by recommending and selling energy efficient products. We work hard to be able to offer our customers top quality name brand products at an affordable price. Please take a moment of your time to learn what NWP might be able to offer you today! Additional DBA - Northwest Pacific. Additional phone - (866) 671-4822.

"NWP installed a new furnace in my home, for which they overcharged me by $3,379, based on the contract they wrote. The job was "completed" in early October, when they demanded the final payment. I asked if they had received approval on the final inspection for the permit, and they assured me they had. In February, while at the Permit Office in Vallejo, I was informed that I still had an open permit with them, that they had not had the final inspection. That permit will soon expire, if it has not already. By that time, one of the ducts they had installed had fallen down and torn; the wires leading to the thermostat had also fallen down across the door. I called and asked them to come out to fix, and to schedule the final inspection. They never showed. When I called to ask where they were, they rescheduled. At that later date, they sent out a technician to survey the problems; he promised he would return the following Thursday to fix them, and would schedule the inspection for Friday morning. None of these things occurred. I texted him and received no reply. So, at this point I have a working furnace, drooping and torn ducts, falling wires, no final inspection, and am missing one register because it was taken to match the size by the technician. I am moving to file a complaint with the Contractors State License Board. I would recommend you find someone else for the job. P.S. Just discovered that their license has been suspended by the CSLB for failure to post a bond."

Toni W on April 2018

Northwest Pacific Heating and Air Conditioning (NWP) is a family owned business that has been operating locally for over 30 years. We pride ourselves in quality customer service, customer satisfaction, and helping to improve the environment by recommending and selling energy efficient products. We work hard to be able to offer our customers top quality name brand products at an affordable price. Please take a moment of your time to learn what NWP might be able to offer you today! Additional DBA - Northwest Pacific. Additional phone - (866) 671-4822.

"NWP installed a new furnace in my home, for which they overcharged me by $3,379, based on the contract they wrote. The job was "completed" in early October, when they demanded the final payment. I asked if they had received approval on the final inspection for the permit, and they assured me they had. In February, while at the Permit Office in Vallejo, I was informed that I still had an open permit with them, that they had not had the final inspection. That permit will soon expire, if it has not already. By that time, one of the ducts they had installed had fallen down and torn; the wires leading to the thermostat had also fallen down across the door. I called and asked them to come out to fix, and to schedule the final inspection. They never showed. When I called to ask where they were, they rescheduled. At that later date, they sent out a technician to survey the problems; he promised he would return the following Thursday to fix them, and would schedule the inspection for Friday morning. None of these things occurred. I texted him and received no reply. So, at this point I have a working furnace, drooping and torn ducts, falling wires, no final inspection, and am missing one register because it was taken to match the size by the technician. I am moving to file a complaint with the Contractors State License Board. I would recommend you find someone else for the job. P.S. Just discovered that their license has been suspended by the CSLB for failure to post a bond."

Toni W on April 2018

ALL BAY HVAC & CONSTRUCTION CO

No reviews yet

ALL BAY HVAC & CONSTRUCTION CO

No reviews yet
27 years of experience

All Bay provides fast friendly competent service to meet all of your comfort needs. We are honest, reliable and offer competitive pricing. Available on weekends by appointment. Repairs, replacements and new installation of furnaces, air conditioners, water heaters, heatpumps. All work guaranteed. Service contracts and financing available.

All Bay provides fast friendly competent service to meet all of your comfort needs. We are honest, reliable and offer competitive pricing. Available on weekends by appointment. Repairs, replacements and new installation of furnaces, air conditioners, water heaters, heatpumps. All work guaranteed. Service contracts and financing available.

Avatar for Rescue Link

Rescue Link

5.00(
4
)

Rescue Link

5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Comprehensive protection for your computers, electronics, and appliances of nearly any age or brand.

Comprehensive protection for your computers, electronics, and appliances of nearly any age or brand.

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FAQs for water main install, replace or repair projects in Knightsen, 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 Knightsen, 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.

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