Top-rated tankless water heater installers.

Get matched with top tankless water heater installers in your area

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.

Tankless water heater installers in Spicewood

Avatar for Eric's Plumbing Services, LLC
Eric's Plumbing Services, LLC
201 9th Street
4.65(
79
)
Approved Pro
Eric's Plumbing Services, LLC
201 9th Street
4.65(
79
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
30 local quotes requested

Eric's Plumbing Services, LLC, proudly serves its customers with pride, integrity, and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today! Eric has over 20 years of experience.

"Let me tell you! These guys are absolutely wonderful in their work as well as their communication. As a property manager, details and communication are super important and these guys excel at everything. Thank you for everything that you do!!!"

Crystal W on March 2025

Eric's Plumbing Services, LLC, proudly serves its customers with pride, integrity, and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today! Eric has over 20 years of experience.

"Let me tell you! These guys are absolutely wonderful in their work as well as their communication. As a property manager, details and communication are super important and these guys excel at everything. Thank you for everything that you do!!!"

Crystal W on March 2025


Avatar for Rocking K Plumbing & Mechanical L.L.C
Rocking K Plumbing & Mechanical L.L.C
2343 Stonewood Ln
5.00(
3
)
Approved Pro
Rocking K Plumbing & Mechanical L.L.C
2343 Stonewood Ln
5.00(
3
)
Approved Pro
1 years of experience
Free onsite estimate

Fully licensed and insured Plumbing company, that specializes in commercial and residential, new construction, remodels, renovations and repairs.

"Need new water heater, replaced, works great! Reliable"

Jennifer S on May 2025

Fully licensed and insured Plumbing company, that specializes in commercial and residential, new construction, remodels, renovations and repairs.

"Need new water heater, replaced, works great! Reliable"

Jennifer S on May 2025


Avatar for STAMPORT PLUMBING & UNDERGROUND UTILITIES
STAMPORT PLUMBING & UNDERGROUND UTILITIES
1371 County Road 405
5.00(
3
)
Approved Pro
STAMPORT PLUMBING & UNDERGROUND UTILITIES
1371 County Road 405
5.00(
3
)
Approved Pro
42 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Our facility is 15 years old. Every original toilet in the building was leaking in some capacity. Clint and the team came in with no disruption to our busy business flow and changed out all necessary component without disruption. Great work by true professionals! Highly recommend these guys for any project large or small."

Robert N on May 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Our facility is 15 years old. Every original toilet in the building was leaking in some capacity. Clint and the team came in with no disruption to our busy business flow and changed out all necessary component without disruption. Great work by true professionals! Highly recommend these guys for any project large or small."

Robert N on May 2025


Avatar for Goettl Plumbing - Austin
Goettl Plumbing - Austin
3600 Silver Dollar Circle
5.00(
3
)
Approved Pro
Goettl Plumbing - Austin
3600 Silver Dollar Circle
5.00(
3
)
Approved Pro
Customers say: Quick response
133 local quotes requested
86 years of experience

Established in 1939, we do residential HVAC and plumbing the right way, not the easy way. At Goettl, we are total home comfort solution providers, enhancing the quality of life in the communities we serve. As Sadie Certified professionals, equipped with cutting-edge tools and technology, we deliver a superior customer experience, one home at a time.

""

Iris B on January 2025

Established in 1939, we do residential HVAC and plumbing the right way, not the easy way. At Goettl, we are total home comfort solution providers, enhancing the quality of life in the communities we serve. As Sadie Certified professionals, equipped with cutting-edge tools and technology, we deliver a superior customer experience, one home at a time.

""

Iris B on January 2025


Avatar for Champion AC & Plumbing
Champion AC & Plumbing
1106 Smith Rd, Suite 102
5.00(
1
)
Approved Pro
Champion AC & Plumbing
1106 Smith Rd, Suite 102
5.00(
1
)
Approved Pro
33 local quotes requested
5 years of experience

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customization to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"Great work"

Stanley A on May 2025

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customization to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"Great work"

Stanley A on May 2025


Avatar for Honest Plumbing & Air
Honest Plumbing & Air
112 MCNUTT RD
4.85(
17
)
Approved Pro
Honest Plumbing & Air
112 MCNUTT RD
4.85(
17
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
33 local quotes requested

Honest Plumbing & Air has been providing the best in HVAC and plumbing services to residents across Central Texas. Above all, we operate on the belief that honesty is the best policy. We will take the time to properly assess your specific situation and we will not overcharge you for unnecessary work. You can rest assured that when you call Honest Plumbing & Air, you're getting a professional technician who will be straightforward with you every step of the way. Our team will effectively diagnose your air conditioning, heating, or plumbing problem, without exaggerating the truth.

"Our AC went out and we called Honest Air. Randy came out to diagnose the problem and did his best to save our old system. The system was too far gone so he helped us pick a new system that would meet our needs and help us save energy. Install day, we had Jeremy, Kade and Logan come in to set up out new system. They were great! They were nice, informative, efficient and courteous to our needs. They also informed us of an issue from the original install of our old system and are going to come back out to correct it for us."

Juli F on June 2020

Honest Plumbing & Air has been providing the best in HVAC and plumbing services to residents across Central Texas. Above all, we operate on the belief that honesty is the best policy. We will take the time to properly assess your specific situation and we will not overcharge you for unnecessary work. You can rest assured that when you call Honest Plumbing & Air, you're getting a professional technician who will be straightforward with you every step of the way. Our team will effectively diagnose your air conditioning, heating, or plumbing problem, without exaggerating the truth.

"Our AC went out and we called Honest Air. Randy came out to diagnose the problem and did his best to save our old system. The system was too far gone so he helped us pick a new system that would meet our needs and help us save energy. Install day, we had Jeremy, Kade and Logan come in to set up out new system. They were great! They were nice, informative, efficient and courteous to our needs. They also informed us of an issue from the original install of our old system and are going to come back out to correct it for us."

Juli F on June 2020


Avatar for Murphy's Plumbing LLC
Murphy's Plumbing LLC
716 Scheel
5.00(
3
)
Approved Pro
Murphy's Plumbing LLC
716 Scheel
5.00(
3
)
Approved Pro
Free onsite estimate
Emergency services offered

Murphy's Plumbing offers top-tier plumbing solutions for both residential and commercial customers. We're committed to providing you with the highest quality service, available 24/7, so you can have peace of mind that assistance is just a phone call away. Plus! We offer free estimates to ensure transparency and trust in every project. Give us a call today!

"Taylor was great! Friendly, efficient and very transparent from beginning to end on timing, pricing, etc… I would definitely use Murphy’s Plumbing again and recommend them to others!"

Shelly Z on May 2025

Murphy's Plumbing offers top-tier plumbing solutions for both residential and commercial customers. We're committed to providing you with the highest quality service, available 24/7, so you can have peace of mind that assistance is just a phone call away. Plus! We offer free estimates to ensure transparency and trust in every project. Give us a call today!

"Taylor was great! Friendly, efficient and very transparent from beginning to end on timing, pricing, etc… I would definitely use Murphy’s Plumbing again and recommend them to others!"

Shelly Z on May 2025


Avatar for Knockout Plumbing Services
Knockout Plumbing Services
3321 Daisy St
5.00(
4
)
Approved Pro
Knockout Plumbing Services
3321 Daisy St
5.00(
4
)
Approved Pro
Free onsite estimate
Emergency services offered

We are a locally owned and operated plumbing company in Kingsland TX serving the hill country area with over a decade of experience. We are confident we can KNOCKOUT any plumbing issue.

"Would definitely recommend!!! Knockout plumbing was attentive, friendly, and informed me the entire process! I will be going with them for any and all future plumbing issues I have! Thank you!!!"

adolfo m on April 2025

We are a locally owned and operated plumbing company in Kingsland TX serving the hill country area with over a decade of experience. We are confident we can KNOCKOUT any plumbing issue.

"Would definitely recommend!!! Knockout plumbing was attentive, friendly, and informed me the entire process! I will be going with them for any and all future plumbing issues I have! Thank you!!!"

adolfo m on April 2025


Avatar for Mr. Rooter Plumbing of Austin
Mr. Rooter Plumbing of Austin
12201 Roxie Dr
3.82(
28
)
Approved Pro
Mr. Rooter Plumbing of Austin
12201 Roxie Dr
3.82(
28
)
Approved Pro
Customers say: Quality work
235 local quotes requested
55 years of experience

Mr. Rooter Plumbing of Austin is standing by to take care of any plumbing issues you might have in your home. Our team is known for being friendly, punctual, knowledgeable, efficient, and clean. Our Austin plumbing services are known for being effective and competitively priced. Keep your home’s plumbing systems in tip-top conditions with the help of Mr. Rooter Plumbing of Austin. With routine maintenance, we can help you avoid major plumbing problems. But if they do happen, our repair services can get us at your door quickly to get things under control, even for emergencies that happen at odd hours and on weekends or holidays! We bring you the best of all worlds when you call on us to work on your Austin home plumbing services. You get the personability and quick turn-around times of a local plumber. But you also get the advanced training and top-grade equipment of a corporate plumbing company!

"It went well. They heiped get the manufacture to replace the heater for no charge. We had to pay for labor but still we didn't have to pay for the heater. Aaron was friendly and did a great job."

Cate S on July 2023

Mr. Rooter Plumbing of Austin is standing by to take care of any plumbing issues you might have in your home. Our team is known for being friendly, punctual, knowledgeable, efficient, and clean. Our Austin plumbing services are known for being effective and competitively priced. Keep your home’s plumbing systems in tip-top conditions with the help of Mr. Rooter Plumbing of Austin. With routine maintenance, we can help you avoid major plumbing problems. But if they do happen, our repair services can get us at your door quickly to get things under control, even for emergencies that happen at odd hours and on weekends or holidays! We bring you the best of all worlds when you call on us to work on your Austin home plumbing services. You get the personability and quick turn-around times of a local plumber. But you also get the advanced training and top-grade equipment of a corporate plumbing company!

"It went well. They heiped get the manufacture to replace the heater for no charge. We had to pay for labor but still we didn't have to pay for the heater. Aaron was friendly and did a great job."

Cate S on July 2023


Avatar for WJP Renovation LLC
WJP Renovation LLC
9908 MATEO CV
5.00(
49
)
Approved Pro
WJP Renovation LLC
9908 MATEO CV
5.00(
49
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
434 local quotes requested

WJP Renovation LLC specializes in kitchen and bathroom renovations as well as granite and marble countertop installation and fabrication. It is a family-owned business that provides outstanding services. We understand the importance of feeling comfortable in your own home. You can count on our dedication to quality and our ability to maximize the value of your home. From initial consultation to installation, WJP Renovation will provide exemplary service and attention to detail. At WJP Renovation we specialize in kitchen and bathroom remodeling. The kitchen is the most important room in any house. From breakfast to dinner, it’s the focal social space of the modern American home. We can also give you a bathroom that is not only functional but features your own personal touch. From custom tile work to the perfect light fixtures, we’ll make sure your bathroom is an intimate sanctuary to unwind and feel at peace in.

"all the grout and surrounding silicone caulk needed to be removed and replaced with new product. not a large project however heavy use area so important the work was performed well. Service REP was very meticulous, thorough and respectful including full clean-up."

Andrew K on April 2025

WJP Renovation LLC specializes in kitchen and bathroom renovations as well as granite and marble countertop installation and fabrication. It is a family-owned business that provides outstanding services. We understand the importance of feeling comfortable in your own home. You can count on our dedication to quality and our ability to maximize the value of your home. From initial consultation to installation, WJP Renovation will provide exemplary service and attention to detail. At WJP Renovation we specialize in kitchen and bathroom remodeling. The kitchen is the most important room in any house. From breakfast to dinner, it’s the focal social space of the modern American home. We can also give you a bathroom that is not only functional but features your own personal touch. From custom tile work to the perfect light fixtures, we’ll make sure your bathroom is an intimate sanctuary to unwind and feel at peace in.

"all the grout and surrounding silicone caulk needed to be removed and replaced with new product. not a large project however heavy use area so important the work was performed well. Service REP was very meticulous, thorough and respectful including full clean-up."

Andrew K on April 2025

...
Showing 1-10 of 976

Tankless water heater installations FAQs

Yes, although they have a higher upfront cost compared to traditional units, tankless water heaters can be worth the investment for many homeowners. They heat water on demand, eliminating standby energy losses and leading to 24% to 34% greater energy efficiency for homes using up to 41 gallons of hot water daily. Tankless units last longer—around 20 years with proper maintenance—and require less space than traditional units. They also reduce the risk of leaks and water damage since there's no tank to corrode and fail.

Tankless water heaters, including gas-powered models, do require electricity to operate components like the ignition and control systems. This means they won't function during a power outage. If you live in an area prone to outages and want to ensure a continuous hot water supply, consider installing a battery backup system or generator to keep your tankless water heater running when the power goes out.

You should set your tankless water heater to 120 degrees Fahrenheit for optimal safety and efficiency, as recommended by the U.S. Consumer Product Safety Commission. Setting the temperature at 120 degrees prevents scalding accidents, particularly for children and the elderly, and reduces energy consumption. Temperatures above 140 degrees increase the risk of burns and promote mineral buildup, which can decrease the system's efficiency.

A 20-minute shower uses 50 to 60 gallons of water, assuming a flow rate of 2.5 to 3 gallons per minute. A typical whole-house tankless water heater can produce 4 to 8 gallons of hot water per minute, providing continuous hot water for long showers. By installing low-flow showerheads and reducing shower time, you decrease water consumption and energy costs, maximizing the efficiency of your tankless system.

With proper maintenance, a tankless water heater lasts around 20 years, significantly longer than conventional tank water heaters, which last between 8 and 12 years. Regular inspections and timely repairs can further extend its lifespan. To keep your tankless system operating efficiently, have it inspected or serviced annually and address any minor issues promptly by contacting a local tankless water heater repair service.

The homeowners guide to tankless water heater installations
From average costs to expert advice, get all the answers you need to get your job done.
Toilet and bidet in bathroom
Apr 28, 2025
Apr 28, 2025
Use this guide to budget for bidet installation costs based on factors such as bidet type, attachments, features, parts, labor, and more.
water main being installed in yard
Apr 30, 2025
Apr 30, 2025
Budget for main water line replacement costs based on factors such as accessibility, depth, length, materials, permits, labor, and more.
Beautiful large white bathroom
Apr 30, 2025
Apr 30, 2025
Budget for walk-in bathtub costs based on factors such as bathtub type, labor, plumbing and electrical work, additional accessibility features, and more.
marble kitchen counter with gold faucet
Apr 28, 2025
Apr 28, 2025
Explore the average cost to replace a kitchen faucet with a professional plumber based on factors like faucet type, features, labor, and unexpected costs.
plumber installing sewer main pipes in the ground
Apr 25, 2025
Apr 25, 2025
Understand what goes into installing a sewer line, including materials, labor, permits, and potential landscaping considerations, to ensure a smooth and compliant connection to your local sewer system.
water main being repaired by plumbers
Apr 24, 2025
Apr 24, 2025
Main water line leak repair costs depend on how much of the line needs repair and other factors. Learn what influences the price before you take on this project.
Share project details to get started.