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Water heater installers and replacers in Cupertino

Pedro Galvan Plumbing, Inc.
5405 Ace Ct
4.84(
16
)
Approved Pro
Pedro Galvan Plumbing, Inc.
5405 Ace Ct
4.84(
16
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 years of experience

Pedro Galvan Ramirez Plumbing, Inc., is the premier plumbing contractor in the Richmond Area. We finish every job to the customer's standards. Call today for a free quote!

"Pedro is professional, patient and prompt. His skill level is top notch. I'd rehire him in a second."

Rolanda B on December 2018

Pedro Galvan Ramirez Plumbing, Inc., is the premier plumbing contractor in the Richmond Area. We finish every job to the customer's standards. Call today for a free quote!

"Pedro is professional, patient and prompt. His skill level is top notch. I'd rehire him in a second."

Rolanda B on December 2018


Avatar for Precision Plumbing
Precision Plumbing
35213 Gawain Court
4.89(
41
)
Approved Pro
Precision Plumbing
35213 Gawain Court
4.89(
41
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

We are a licensed, bonded and insured plumbing company.. We have built our company on the belief that working with a smaller plumbing and water heater company gives both the homeowner and the business owner the best in customer service. Every job gets our full attention and as owners we personally oversee the quality of each job we complete. We offer straight-forward pricing to our clients so you will know the price before we begin any work.Our company is based on referrals so we work hard to make you feel as comfortable as possible with the entire process. We also provide performance guarantees for your new plumbing system so you know you will get what you expect and deserve from your system.

"Very courteous and responsible technicians , Explained everything thatâ s being done and why."

Winona M on December 2023

We are a licensed, bonded and insured plumbing company.. We have built our company on the belief that working with a smaller plumbing and water heater company gives both the homeowner and the business owner the best in customer service. Every job gets our full attention and as owners we personally oversee the quality of each job we complete. We offer straight-forward pricing to our clients so you will know the price before we begin any work.Our company is based on referrals so we work hard to make you feel as comfortable as possible with the entire process. We also provide performance guarantees for your new plumbing system so you know you will get what you expect and deserve from your system.

"Very courteous and responsible technicians , Explained everything thatâ s being done and why."

Winona M on December 2023


Avatar for Accomplish Water Heater Service
Accomplish Water Heater Service
2098 Madera Court
5.00(
8
)
Approved Pro
Accomplish Water Heater Service
2098 Madera Court
5.00(
8
)
Approved Pro
Customers say: Quick response
3 years of experience
Free onsite estimate

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

"Service with courtesy and professional."

Eugenio C on April 2025

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

"Service with courtesy and professional."

Eugenio C on April 2025


EGC Family Plumbing, Inc.
1455 Trailwood Ave
New on HomeAdvisorNew on Angi
Approved Pro
EGC Family Plumbing, Inc.
1455 Trailwood Ave
New on AngiNew on HomeAdvisor
Approved Pro
3 years of experience
Free onsite estimate

With several years of experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.

With several years of experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.


Avatar for Travis Martin Plumbing, Inc.
Travis Martin Plumbing, Inc.
13352 Big Basin Way
5.00(
8
)
Approved Pro
Travis Martin Plumbing, Inc.
13352 Big Basin Way
5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

Travis Martin Plumbing is the premier professional plumbing company offering a wide variety of residential services to our clients in and around San Lorenzo Valley, Santa Cruz, and San Jose. Travis is known to pay exquisite attention to detail while making your satisfaction our number one priority. Please call us today to schedule your appointment with true professionals at work for you!

"Travis is a great guy. He's very friendly, kind, and thoughtful. Him and his crew above and beyond to help. He does excellent work. I've already recommended him to many of my friends."

Lisa P on May 2019

Travis Martin Plumbing is the premier professional plumbing company offering a wide variety of residential services to our clients in and around San Lorenzo Valley, Santa Cruz, and San Jose. Travis is known to pay exquisite attention to detail while making your satisfaction our number one priority. Please call us today to schedule your appointment with true professionals at work for you!

"Travis is a great guy. He's very friendly, kind, and thoughtful. Him and his crew above and beyond to help. He does excellent work. I've already recommended him to many of my friends."

Lisa P on May 2019


Avatar for Drain & Plumbing Solutions, LLC
Drain & Plumbing Solutions, LLC
1130 Starbird Circle, Unit 20
5.00(
7
)
Approved Pro
Drain & Plumbing Solutions, LLC
1130 Starbird Circle, Unit 20
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

Our experience is serving our customers with 100% satisfaction on every project we take on. We will give you the peace of mind you need and deserve. Drain & Plumbing Solutions LLC, happily services the community with integrity, professionalism, and competitive pricing. We are fully licensed and insured, and have built a reputation for quality work with each satisfied customer. Thank you for the opportunity to introduce you to our company.

"Good job."

Guadalupe B on February 2023

Our experience is serving our customers with 100% satisfaction on every project we take on. We will give you the peace of mind you need and deserve. Drain & Plumbing Solutions LLC, happily services the community with integrity, professionalism, and competitive pricing. We are fully licensed and insured, and have built a reputation for quality work with each satisfied customer. Thank you for the opportunity to introduce you to our company.

"Good job."

Guadalupe B on February 2023


KINGDOM PLUMBING INC
551 LILY ANN WAY
New on HomeAdvisorNew on Angi
Approved Pro
KINGDOM PLUMBING INC
551 LILY ANN WAY
New on AngiNew on HomeAdvisor
Approved Pro
11 years of experience
Free onsite estimate

KINGDOM PLUMBING INC 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.

KINGDOM PLUMBING INC 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.


Avatar for Mike Counsil Plumbing, Inc.
Mike Counsil Plumbing, Inc.
1915 O'Toole Way
4.52(
420
)
Approved Pro
Mike Counsil Plumbing, Inc.
1915 O'Toole Way
4.52(
420
)
Approved Pro
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
33 local quotes requested

Mike Counsil Plumbing and Rooter is your full service plumbing company. If you have a plumbing project where you need an experienced plumber that will get the job done correctly and in a timely manner, Mike Counsil Plumbing and Rooter can get it done for you. Any plumbing job will be done with the highest quality materials and the best qualified plumbers you can find. We have on-going training to insure that you get the quality you deserve and the warranties you expect. All work is 100% Satisfaction guaranteed, in writing. Drain Cleaning, Sewer Line Repair, Hydro-Jetting, Video Sewer Inspection, and any other plumbing work you may need will be done professional and clean. We'll Be There For You!

"job was completed satisfactorily."

Fred S on May 2025

Mike Counsil Plumbing and Rooter is your full service plumbing company. If you have a plumbing project where you need an experienced plumber that will get the job done correctly and in a timely manner, Mike Counsil Plumbing and Rooter can get it done for you. Any plumbing job will be done with the highest quality materials and the best qualified plumbers you can find. We have on-going training to insure that you get the quality you deserve and the warranties you expect. All work is 100% Satisfaction guaranteed, in writing. Drain Cleaning, Sewer Line Repair, Hydro-Jetting, Video Sewer Inspection, and any other plumbing work you may need will be done professional and clean. We'll Be There For You!

"job was completed satisfactorily."

Fred S on May 2025


Avatar for Chandler's Plumbing
Chandler's Plumbing
2230 Will Wool Dr
4.52(
612
)
Approved Pro
Chandler's Plumbing
2230 Will Wool Dr
4.52(
612
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
641 local quotes requested

We are the Home renovation of Santa Clara County offering free estimates, fair rates, and superior workmanship. Our team has been servicing the Bay Area for over 15 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%. Give us a call today! Licensed - Bonded - Insured Family Owned Business

"Put in a beautiful faucet. Thank you!"

David O on May 2025

We are the Home renovation of Santa Clara County offering free estimates, fair rates, and superior workmanship. Our team has been servicing the Bay Area for over 15 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%. Give us a call today! Licensed - Bonded - Insured Family Owned Business

"Put in a beautiful faucet. Thank you!"

David O on May 2025


Avatar for POSEIDON PLUMBING LLC
POSEIDON PLUMBING LLC
3161 STANLEY AVE
5.00(
5
)
Approved Pro
POSEIDON PLUMBING LLC
3161 STANLEY AVE
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
22 local quotes requested

POSEIDON PLUMBING LLC 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.

"Excellent work, fair price. Iâ ll hire him from now on."

Diana F on August 2024

POSEIDON PLUMBING LLC 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.

"Excellent work, fair price. Iâ ll hire him from now on."

Diana F on August 2024

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Water heater installations and replacements FAQs

You'll need an expansion tank if your home has a closed water system, which is standard in newer homes or those with backflow preventers or pressure regulators. Expanding hot water has nowhere to go in closed systems, creating potentially damaging pressure. The expansion tank provides space for this expanded water, protecting your plumbing system and water heater from premature failure. Many local building codes now require expansion tanks, and some water heater warranties may be voided without one.

For a standard 50-gallon water heater, a two-gallon expansion tank is sufficient. This sizing assumes normal household water pressure between 40 and 60 psi. If your home has higher water pressure (60 to 80 psi), consider upgrading to a slightly larger tank for added protection. The expansion tank's purpose is to accommodate the increased volume that occurs when cold water heats up, which is proportional to your water heater's capacity.

Watch for signs like dripping water around the tank, fluctuating water pressure throughout your home, or unusual noises in your plumbing system. A properly functioning expansion tank should feel light when tapped on the bottom—if it feels heavy or waterlogged, the internal bladder has likely failed. Other indicators include frequent triggering of your temperature and pressure relief valve, visible corrosion on the tank, or unexplained increases in your water bill, suggesting hidden leaks.

Most expansion tanks have a service life of five to 10 years, though some may last up to 12 years or more with proper maintenance. Factors affecting lifespan include water quality, system pressure, installation quality, and tank construction. Hard water areas often see shorter lifespans due to mineral buildup. Regular maintenance checks can help identify potential issues before complete failure. When your water heater is due for replacement, it's wise to replace the expansion tank simultaneously, even if it hasn't failed yet.

A 30-gallon water heater needs an expansion tank if your home has a closed plumbing system. The need for an expansion tank is determined by your plumbing system type rather than water heater size. Even smaller water heaters create thermal expansion when heating water. If your home has a backflow preventer, pressure regulator, or check valve on the main water line, you have a closed system that requires an expansion tank. Check your local plumbing codes, as many jurisdictions now mandate expansion tanks regardless of water heater size.

The homeowners guide to water heater installations and replacements
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