Top-rated tankless water heater installers.

Get matched with top tankless water heater installers in Thermal, 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 Thermal

Avatar for Right Choice AC & Plumbing

Right Choice AC & Plumbing

4.80(
28
)
•Approved Pro

Right Choice AC & Plumbing

4.80(
28
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

With years of experience under our belt, we are your first choice in excellent customer satisfaction. We are locally owned and operated and our professionals are always prompt, clean, and friendly every step of the way. No job is too small, so call us today for the most reliable handyman in the area. Estimate's provided are free of charge if work is performed, a $25 service charge is due unless otherwise agreed upon before arrival.

"Chris was quick to respond, very reasonably priced, efficient, and worked late to get the job done. Was impressed that he showed up and returned when he said he would and went out of his way to make things work. Itâ s refreshing to find someone who is not just capable, but fair, honest and reliable, as well. I would highly recommend Right Choice Plumbing without any reservations and will use them again for any plumbing or HVAC needs."

Marci P on December 2023

With years of experience under our belt, we are your first choice in excellent customer satisfaction. We are locally owned and operated and our professionals are always prompt, clean, and friendly every step of the way. No job is too small, so call us today for the most reliable handyman in the area. Estimate's provided are free of charge if work is performed, a $25 service charge is due unless otherwise agreed upon before arrival.

"Chris was quick to respond, very reasonably priced, efficient, and worked late to get the job done. Was impressed that he showed up and returned when he said he would and went out of his way to make things work. Itâ s refreshing to find someone who is not just capable, but fair, honest and reliable, as well. I would highly recommend Right Choice Plumbing without any reservations and will use them again for any plumbing or HVAC needs."

Marci P on December 2023

Avatar for Advanced Gen Plumbing

Advanced Gen Plumbing

4.91(
11
)
•Approved Pro

Advanced Gen Plumbing

4.91(
11
)
•Approved Pro
Super Service Award
Customers say: Quick response
6 years of experience
Free onsite estimate

"As a premier plumbing and water treatment company, Advanced Gen is dedicated to delivering top-notch service to all our clients. Led by owner Nick Cannon, our team of skilled professionals is equipped to handle a wide range of services, including drain installation, emergency repairs, water heater & water filtration system installation, and more. We also offer gas line services, electric & gas water heater repair, and hot water recirculation services. We offer these exceptional services within a 30 miles radius of our base location. At Advanced Gen, we pride ourselves on our professionalism and attention to detail, ensuring that every job is completed to the highest standards. Trust us to handle all of your plumbing and water-related needs."

"They showed up as scheduled. Work hard to do and excellent installation of a new hot water heater. When I called them about water pressure issues they came in 15 minutes to resolve. "

Rob L on November 2025

"As a premier plumbing and water treatment company, Advanced Gen is dedicated to delivering top-notch service to all our clients. Led by owner Nick Cannon, our team of skilled professionals is equipped to handle a wide range of services, including drain installation, emergency repairs, water heater & water filtration system installation, and more. We also offer gas line services, electric & gas water heater repair, and hot water recirculation services. We offer these exceptional services within a 30 miles radius of our base location. At Advanced Gen, we pride ourselves on our professionalism and attention to detail, ensuring that every job is completed to the highest standards. Trust us to handle all of your plumbing and water-related needs."

"They showed up as scheduled. Work hard to do and excellent installation of a new hot water heater. When I called them about water pressure issues they came in 15 minutes to resolve. "

Rob L on November 2025

Avatar for Right Solution Plumbing

Right Solution Plumbing

5.00(
10
)
•Approved Pro

Right Solution Plumbing

5.00(
10
)
•Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
18 years of experience

I offer 10% off first home or commercial visit, all major credit cards are accepted, senior discounts, I work with contractors and offer a 30 to 45 day billing for businesses upon approval. 24 hour emergency service, and free estimates in most areas.

"This professional truly exceeded my expectations! They completed the job swiftly and with exceptional skill. Plus, the price was surprisingly fair. Highly recommend!"

Lytonia J on October 2025

I offer 10% off first home or commercial visit, all major credit cards are accepted, senior discounts, I work with contractors and offer a 30 to 45 day billing for businesses upon approval. 24 hour emergency service, and free estimates in most areas.

"This professional truly exceeded my expectations! They completed the job swiftly and with exceptional skill. Plus, the price was surprisingly fair. Highly recommend!"

Lytonia J on October 2025

Avatar for IRC Plumbing Inc.

IRC Plumbing Inc.

4.67(
12
)
•Approved Pro

IRC Plumbing Inc.

4.67(
12
)
•Approved Pro
20 years of experience
Free onsite estimate

IRC Plumbing Inc. has been providing the highest quality plumbing service in La habra CA since 2012, We handle everything from leaky faucets, sewer line repair, and fixture installation to re-piping. There are hundreds of less-than-reputable ?plumbers? out there who?ll take your money and leave you with plumbing worse than you started with, or even good plumbers who will take advantage of you knowing that you?re in a tight spot. We never sacrifice quality for cost!

"Way to pricey for the level of work preformed. He's Charged and independent plumber and charged me $275 to twitch out a cartridge plus tye cost of the part. Finding out the steps were; unscrew the handle, turn of the water using the shut off valves in the pipe, unscrew the cartridge, replace cartridge, turn on water, and screw handle back on. He charged me $275 for labor and the part was only $130. Definitely extortion pricing. When I asked why was labor so much he saif because he had to go to two place to find the part and he's working on a Saturday. He's like a taxi, kept the meter running while driving around to get the part and he seemed to be under the impression that I forced him to work on a Saturday. I will not use again and I do not recommend. He should price fair by the level of difficulty of a job and not just by what he feel he is owed."

Nasser S on February 2026

IRC Plumbing Inc. has been providing the highest quality plumbing service in La habra CA since 2012, We handle everything from leaky faucets, sewer line repair, and fixture installation to re-piping. There are hundreds of less-than-reputable ?plumbers? out there who?ll take your money and leave you with plumbing worse than you started with, or even good plumbers who will take advantage of you knowing that you?re in a tight spot. We never sacrifice quality for cost!

"Way to pricey for the level of work preformed. He's Charged and independent plumber and charged me $275 to twitch out a cartridge plus tye cost of the part. Finding out the steps were; unscrew the handle, turn of the water using the shut off valves in the pipe, unscrew the cartridge, replace cartridge, turn on water, and screw handle back on. He charged me $275 for labor and the part was only $130. Definitely extortion pricing. When I asked why was labor so much he saif because he had to go to two place to find the part and he's working on a Saturday. He's like a taxi, kept the meter running while driving around to get the part and he seemed to be under the impression that I forced him to work on a Saturday. I will not use again and I do not recommend. He should price fair by the level of difficulty of a job and not just by what he feel he is owed."

Nasser S on February 2026

Avatar for Lifetime Solutions, Inc.

Lifetime Solutions, Inc.

5.00(
2
)
•Approved Pro

Lifetime Solutions, Inc.

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

Since 1989, Lifetime Solutions, Inc. has proudly served Southern California, beginning our journey as the "Water Doctor," committed to providing quality water solutions to homes in the High Desert. Over the years, we have expanded both our service areas and our offerings, evolving into your trusted "In-home Environment Specialist." Our mission is simple yet powerful: to improve the quality of life for every home we serve. This mission is the heartbeat of everything we do, driving us to deliver only the highest-quality products—thoroughly researched and trusted to enhance your home environment.

"Always professional and experienced. Anytime we have called they come right away. I wouldn’t use any other company in the High Desert. They service our soft water. Our unit is like brand new even though it’s over 10 years old "

Mark J on January 2026

Since 1989, Lifetime Solutions, Inc. has proudly served Southern California, beginning our journey as the "Water Doctor," committed to providing quality water solutions to homes in the High Desert. Over the years, we have expanded both our service areas and our offerings, evolving into your trusted "In-home Environment Specialist." Our mission is simple yet powerful: to improve the quality of life for every home we serve. This mission is the heartbeat of everything we do, driving us to deliver only the highest-quality products—thoroughly researched and trusted to enhance your home environment.

"Always professional and experienced. Anytime we have called they come right away. I wouldn’t use any other company in the High Desert. They service our soft water. Our unit is like brand new even though it’s over 10 years old "

Mark J on January 2026

Scott Company

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

Scott Company

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

Scott Company 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.

Scott Company 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.

The Thermal, 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