Top-rated tankless water heater installers.

Get matched with top tankless water heater installers in Gilroy, CA

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.

Find Tankless water heater installers in Gilroy

Avatar for GN Central Coast Plumbing, Inc.

GN Central Coast Plumbing, Inc.

4.52(
22
)
•Approved Pro

GN Central Coast Plumbing, Inc.

4.52(
22
)
•Approved Pro
Customers say: Quality work
13 local quotes requested
23 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade! We will always do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Call us anytime! I am a plumber I know how to fix any plumbing line. I install gas or water lines. I install sewer main or repair them I install toilets anywhere you want them

"Gabriel charged us ridiculous prices for simple tasks ($75 for replacing a valve faucet in the backyard and $200 for replacing an older bathtub drain with one that we bought) on top of the $300 (150/hour labor) that he took just to show up and diagnose a potential leak. He initially said that the $200 included work on a second drain that was very corroded and stuck and promise that he will come again since he was missing a tool but when he show up he asked for an additional $300 at which point we almost let him do it but he requested the money beforehand since he was worried (rightfully) that if he breaks the tub we will not be paying him. At which point we decided to not let him do the job since he does not put his money on his skill. We managed to fix the second drain with $20 given to another plumber who came in for an unrelated issue."

Liviu P on March 2024

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade! We will always do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Call us anytime! I am a plumber I know how to fix any plumbing line. I install gas or water lines. I install sewer main or repair them I install toilets anywhere you want them

"Gabriel charged us ridiculous prices for simple tasks ($75 for replacing a valve faucet in the backyard and $200 for replacing an older bathtub drain with one that we bought) on top of the $300 (150/hour labor) that he took just to show up and diagnose a potential leak. He initially said that the $200 included work on a second drain that was very corroded and stuck and promise that he will come again since he was missing a tool but when he show up he asked for an additional $300 at which point we almost let him do it but he requested the money beforehand since he was worried (rightfully) that if he breaks the tub we will not be paying him. At which point we decided to not let him do the job since he does not put his money on his skill. We managed to fix the second drain with $20 given to another plumber who came in for an unrelated issue."

Liviu P on March 2024

Valley All Pro Plumbing

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

Valley All Pro Plumbing

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

Valley All Pro's 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.

Valley All Pro's 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.

Avatar for Chandler's Plumbing

Chandler's Plumbing

4.53(
639
)
•Approved Pro

Chandler's Plumbing

4.53(
639
)
•Approved Pro
Super Service Award
Customers say: Super punctual
478 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%.

"They were quick and efficient, fixed our leak! "

Karishma L on February 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%.

"They were quick and efficient, fixed our leak! "

Karishma L on February 2026

Avatar for Aaron's Plumbing & Rooter

Aaron's Plumbing & Rooter

4.86(
79
)
•Approved Pro

Aaron's Plumbing & Rooter

4.86(
79
)
•Approved Pro
Super Service Award
Customers say: True professional
74 local quotes requested
8 years of experience

We have over 24 years of experience and have the honor of being awarded and recognized as the number1 Plumber in the United States, by Plumbers Success International, for five years in a row. We're dedicated to providing our clients with the very best in service, installation, and repair to meet your plumbing needs. We specialize in mechanical piping and a variety of residential and commercial services. We take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients and guarantee your satisfaction.

"Aaron was quick enough to provide a quote for me. He worked it out in less than 15mins sitting in in his van and coming iut with a quote and agreement. He has well equipped van with supplies and equipment. He has specially skilled people to do certain tasks of plumbing. He was able to setup the gas plumbing and gas pit terminating connections with control valves."

Manjunatha M on December 2025

We have over 24 years of experience and have the honor of being awarded and recognized as the number1 Plumber in the United States, by Plumbers Success International, for five years in a row. We're dedicated to providing our clients with the very best in service, installation, and repair to meet your plumbing needs. We specialize in mechanical piping and a variety of residential and commercial services. We take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients and guarantee your satisfaction.

"Aaron was quick enough to provide a quote for me. He worked it out in less than 15mins sitting in in his van and coming iut with a quote and agreement. He has well equipped van with supplies and equipment. He has specially skilled people to do certain tasks of plumbing. He was able to setup the gas plumbing and gas pit terminating connections with control valves."

Manjunatha M on December 2025

Avatar for DD&S Plumbing Services Inc

DD&S Plumbing Services Inc

5.00(
2
)
•Approved Pro

DD&S Plumbing Services Inc

5.00(
2
)
•Approved Pro
1 years of experience
Free onsite estimate

We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a locally owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today, and we look forward to working with you!

"Everything was just right"

Thomas B on February 2026

We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a locally owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today, and we look forward to working with you!

"Everything was just right"

Thomas B on February 2026

Avatar for Aleman plumbing, Inc

Aleman plumbing, Inc

4.89(
22
)
•Approved Pro

Aleman plumbing, Inc

4.89(
22
)
•Approved Pro
Customers say: Quality work
12 years of experience
Emergency services offered

We specialize in working on older homes and those problems that require unique solutions. We offer full residential plumbing services to customers looking for "long-term" and "efficient" solutions. We also offer commercial and industrial plumbing repair and new solutions.

"Arrived promptly, quickly identified the problem. Friendly and professional. Will hire again when needed."

luz h on February 2026

We specialize in working on older homes and those problems that require unique solutions. We offer full residential plumbing services to customers looking for "long-term" and "efficient" solutions. We also offer commercial and industrial plumbing repair and new solutions.

"Arrived promptly, quickly identified the problem. Friendly and professional. Will hire again when needed."

luz h on February 2026

Avatar for Aire Serv of Campbell & Saratoga

Aire Serv of Campbell & Saratoga

4.88(
16
)
•Approved Pro

Aire Serv of Campbell & Saratoga

4.88(
16
)
•Approved Pro
Super Service Award
Customers say: Quick response
129 local quotes requested
35 years of experience

Looking for reliable Heating & A/C services in the BAY Area and surrounding counties? Look no further than Aire Serv of Campbell & Saratoga. Our team of experts is here to assist you with all your heating and A/C needs. With our exceptional service and attention to detail, we are dedicated to providing the best solutions for all your needs. Contact us today!

"Very well!"

Sanjeev Gupta G on September 2025

Looking for reliable Heating & A/C services in the BAY Area and surrounding counties? Look no further than Aire Serv of Campbell & Saratoga. Our team of experts is here to assist you with all your heating and A/C needs. With our exceptional service and attention to detail, we are dedicated to providing the best solutions for all your needs. Contact us today!

"Very well!"

Sanjeev Gupta G on September 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 The Tankless Guys Plumbing Corp.

The Tankless Guys Plumbing Corp.

5.00(
6
)
•Approved Pro

The Tankless Guys Plumbing Corp.

5.00(
6
)
•Approved Pro
Customers say: Quick response
Warranties offered

We offer a variety of plumbing services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"The work was excellent, very cleanly done, great knowledge and helpful information from Gert, the owner of company. Good communication from company. Would work with this business again."

Lois T on July 2024

We offer a variety of plumbing services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"The work was excellent, very cleanly done, great knowledge and helpful information from Gert, the owner of company. Good communication from company. Would work with this business again."

Lois T on July 2024

Avatar for Fluid Dynamics Plumbing Inc

Fluid Dynamics Plumbing Inc

4.97(
33
)
•Approved Pro

Fluid Dynamics Plumbing Inc

4.97(
33
)
•Approved Pro
Super Service Award
14 local quotes requested
1 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 basis of our business. FluidDynamicsPlumbing.com

"Syed Usman did Great Job in unclogging my drain. He was great and Expert"

Gurdip S on January 2026

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. FluidDynamicsPlumbing.com

"Syed Usman did Great Job in unclogging my drain. He was great and Expert"

Gurdip S on January 2026

...
Showing 1-10 of 1022

The Gilroy, CA homeowners’ guide to tankless water heater installations

From average costs to expert advice, get all the answers you need to get your job done.

See all articles