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 Castle Rock

Avatar for Black Diamond Mechanical, Inc.
Black Diamond Mechanical, Inc.
8122 Burl Wood Drive
5.00(
14
)
Approved Pro
Black Diamond Mechanical, Inc.
8122 Burl Wood Drive
5.00(
14
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
4 years of experience

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

"Made a huge effort to get my house done quickly. Overcame several unexpected issues to finish the project on time and on budget, including working on the weekend."

David G on October 2024

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

"Made a huge effort to get my house done quickly. Overcame several unexpected issues to finish the project on time and on budget, including working on the weekend."

David G on October 2024


Avatar for Tipping Hat Plumbing, Heating & Electric
Tipping Hat Plumbing, Heating & Electric
608 Garrison Street, Suite G
4.39(
619
)
Approved Pro
Tipping Hat Plumbing, Heating & Electric
608 Garrison Street, Suite G
4.39(
619
)
Approved Pro
Customers say: Quality work
651 local quotes requested
25 years of experience

Tipping Hat Plumbing, Heating & Electric, is a locally family owned and operated business serving the Denver Metro area and surrounding counties! We take pride in offering a range of services, including heating, plumbing, electrical, as well as drains and sewers. Our company thrives on getting you the very best technicians, competitive financing options, robust warranties, all while respecting your time and your home. Our mission is simple: to knock your socks off with exceptional service, every time we are in your home. Why is our company called Tipping Hat? It's more than just our namesake. When we tip our hat to you, it symbolizes the utmost respect and appreciation we hold for our customers. Just as one would tip their hat as a gesture of respect, we strive to go the extra mile to provide exceptional service, quality products, and unwavering support to our customers.

"Pedro was great to work with and to discuss options. Job well done."

Andy D on January 2025

Tipping Hat Plumbing, Heating & Electric, is a locally family owned and operated business serving the Denver Metro area and surrounding counties! We take pride in offering a range of services, including heating, plumbing, electrical, as well as drains and sewers. Our company thrives on getting you the very best technicians, competitive financing options, robust warranties, all while respecting your time and your home. Our mission is simple: to knock your socks off with exceptional service, every time we are in your home. Why is our company called Tipping Hat? It's more than just our namesake. When we tip our hat to you, it symbolizes the utmost respect and appreciation we hold for our customers. Just as one would tip their hat as a gesture of respect, we strive to go the extra mile to provide exceptional service, quality products, and unwavering support to our customers.

"Pedro was great to work with and to discuss options. Job well done."

Andy D on January 2025


Avatar for American Plumbing & Sewer LLC
American Plumbing & Sewer LLC
2086 Bayfront Dr
4.97(
47
)
Approved Pro
American Plumbing & Sewer LLC
2086 Bayfront Dr
4.97(
47
)
Approved Pro
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
25 local quotes requested

I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service - Call today!

"Six stars. Super pro Very straight forward. Extremely fast and efficient. Helped me to what changes needed to be made. I trust him. Tells the straight scoop."

Bryan J on April 2025

I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service - Call today!

"Six stars. Super pro Very straight forward. Extremely fast and efficient. Helped me to what changes needed to be made. I trust him. Tells the straight scoop."

Bryan J on April 2025


Avatar for Euro Plumbing, LLC
Euro Plumbing, LLC
13962 East Princeton Place
4.95(
382
)
Approved Pro
Euro Plumbing, LLC
13962 East Princeton Place
4.95(
382
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
53 local quotes requested

Euro Plumbing, LLC, has over 9 years of experience, and is licensed. We are a family owned and operated company that prides itself on communication, punctuality, professionalism, and above all, our customer satisfaction. If you are looking to top quality and great customer service at affordable prices, give us a call today!

"Everything went well. Nice job. Left the area clean. Very friendly."

Jim I on November 2024

Euro Plumbing, LLC, has over 9 years of experience, and is licensed. We are a family owned and operated company that prides itself on communication, punctuality, professionalism, and above all, our customer satisfaction. If you are looking to top quality and great customer service at affordable prices, give us a call today!

"Everything went well. Nice job. Left the area clean. Very friendly."

Jim I on November 2024


Avatar for Rooter Guy, LLC
Rooter Guy, LLC
4890 Ironton Street
4.66(
2,700
)
Approved Pro
Rooter Guy, LLC
4890 Ironton Street
4.66(
2,700
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
812 local quotes requested

RooterGuy Plumbing has over 30 years plus of experience BBB Accredited since 2012 specializing in all facets of the plumbing work, from drain clearing to whole house piping. We are family owned and operated. We still run on word of mouth advertising rather than taking out ads that are costly, this helps us save money so that we may pass on that savings to our customers. We have over two thousand ratings on the HomeAdvisor web site, real customers whom we have provided a service to, from minor drain cleaning to large scale whole sewer replacements, and though we know all of this may not matter to most consumers, we work very hard and pride ourselves to do well and make sure that all of our customers feel comfortable with us and our services. We are insured and bonded, and we look out for all customers best interest, we never pressure anyone to use our services over others our knowledge and experience speaks for itself. Call us today and do not forget to ask about our discounts.

"Gary did a fantastic job, and the entire Rooter Guy experience was great! Quick response, on-time, and fair price."

Jon S on April 2025

RooterGuy Plumbing has over 30 years plus of experience BBB Accredited since 2012 specializing in all facets of the plumbing work, from drain clearing to whole house piping. We are family owned and operated. We still run on word of mouth advertising rather than taking out ads that are costly, this helps us save money so that we may pass on that savings to our customers. We have over two thousand ratings on the HomeAdvisor web site, real customers whom we have provided a service to, from minor drain cleaning to large scale whole sewer replacements, and though we know all of this may not matter to most consumers, we work very hard and pride ourselves to do well and make sure that all of our customers feel comfortable with us and our services. We are insured and bonded, and we look out for all customers best interest, we never pressure anyone to use our services over others our knowledge and experience speaks for itself. Call us today and do not forget to ask about our discounts.

"Gary did a fantastic job, and the entire Rooter Guy experience was great! Quick response, on-time, and fair price."

Jon S on April 2025


Avatar for American Plumbing & Sewer LLC
American Plumbing & Sewer LLC
2086 Bayfront Dr
4.97(
44
)
Approved Pro
American Plumbing & Sewer LLC
2086 Bayfront Dr
4.97(
44
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
176 local quotes requested

We're dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and 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.

"Yes friendly honest"

Debbie L on March 2025

We're dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and 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.

"Yes friendly honest"

Debbie L on March 2025


Avatar for Apple Aire
Apple Aire
4020 Youngfield St
4.81(
169
)
Approved Pro
Apple Aire
4020 Youngfield St
4.81(
169
)
Approved Pro
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
174 local quotes requested

Apple Aire is well known in the area for their superior quality workmanship and commitment. Unlike typical HVAC's who simply want to install the unit and be done with it, your Apple Aire technician will diligently consider all factors, including energy efficiency and weatherization to select the most appropriate unit for your home. If you're looking for excellent customer service and an experienced, reliable team for your next HVAC installation, look no further than Apple Aire.

"We are working to understand some differences in scope and what was actually installed, but overall experience was very good."

Shana L on March 2025

Apple Aire is well known in the area for their superior quality workmanship and commitment. Unlike typical HVAC's who simply want to install the unit and be done with it, your Apple Aire technician will diligently consider all factors, including energy efficiency and weatherization to select the most appropriate unit for your home. If you're looking for excellent customer service and an experienced, reliable team for your next HVAC installation, look no further than Apple Aire.

"We are working to understand some differences in scope and what was actually installed, but overall experience was very good."

Shana L on March 2025


Avatar for Dearborn Plumbing and Drains, LLC
Dearborn Plumbing and Drains, LLC
8540 Clara Belle Dr
5.00(
7
)
Approved Pro
Dearborn Plumbing and Drains, LLC
8540 Clara Belle Dr
5.00(
7
)
Approved Pro
Customers say: Quick response
1 years of experience
Free onsite estimate

Welcome to our plumbing service! With years of experience in the industry, we pride ourselves on delivering reliable and professional plumbing solutions to our valued customers. Our dedicated team is committed to ensuring your plumbing needs met with quality workmanship and exceptional customer service. Whether it’s a minor repair or a major installation, we're here to help!

"Went to self instal a bidet on my toilet and when I went to turn the water back on there was a leak coming from the on/off valve . I thought great this is gonna cost me an arm and a leg . The first company I had come look at it wanted $430 to fix it . I told them I’ll get back to them . Brandon came over next and said it would be less then 1/2 as much as the other company quoted me and the craftsmanship was perfect as well as communication and punctuality. If I ever have any future plumbing needs I’m calling Dearborn first and will only use them . Highly recommended"

Garrod M on March 2025

Welcome to our plumbing service! With years of experience in the industry, we pride ourselves on delivering reliable and professional plumbing solutions to our valued customers. Our dedicated team is committed to ensuring your plumbing needs met with quality workmanship and exceptional customer service. Whether it’s a minor repair or a major installation, we're here to help!

"Went to self instal a bidet on my toilet and when I went to turn the water back on there was a leak coming from the on/off valve . I thought great this is gonna cost me an arm and a leg . The first company I had come look at it wanted $430 to fix it . I told them I’ll get back to them . Brandon came over next and said it would be less then 1/2 as much as the other company quoted me and the craftsmanship was perfect as well as communication and punctuality. If I ever have any future plumbing needs I’m calling Dearborn first and will only use them . Highly recommended"

Garrod M on March 2025


Avatar for American Plumbing & Sewer, LLC
American Plumbing & Sewer, LLC
2086 Bayfront Dr
4.97(
54
)
Approved Pro
American Plumbing & Sewer, LLC
2086 Bayfront Dr
4.97(
54
)
Approved Pro
Customers say: True professional
17 local quotes requested
5 years of experience

We're dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and 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.

"Lanney and his son were quick and efficient in replacing my water heater. Lanney is very knowledgeable and answered all my questions. They were pleasant and courteous. I would hire them again, and recommend them to others."

Karen C on February 2025

We're dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and 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.

"Lanney and his son were quick and efficient in replacing my water heater. Lanney is very knowledgeable and answered all my questions. They were pleasant and courteous. I would hire them again, and recommend them to others."

Karen C on February 2025


Avatar for Awesome Home Services
Awesome Home Services
805 N Murray Blvd
4.92(
7
)
Approved Pro
Awesome Home Services
805 N Murray Blvd
4.92(
7
)
Approved Pro
Customers say: Quick response
318 local quotes requested
1 years of experience

"At Awesome Home Services, we believe in the power of small businesses to make a significant impact. Our vision is to enrich the lives of our employees and deliver exceptional service to our clients. We are committed to: Community Engagement: We are passionate about the cities we operate in and are dedicated to contributing positively to this great community. Employee Empowerment: We create opportunities and a supportive environment for our team, fostering growth and professional development. Excellence in Service: Striving to be your whole-home service expert, we specialize in HVAC, plumbing, and electrical services. We love people, the trades, and our community. At Awesome Home Services, we are more than a business; we are a part of this community, committed to making a difference."

"Nate Medford conducted our electrical inspection offered by the Awesome Club Membership Program. Nate didn't just inspect, he explained. He also didn't just explain, he corrected issues along the way. Today he brought our subpanel up to code and prevented a probable electrical fire. In addition, Nate spent lengthy time on the phone with me last week, giving clear guidance on LED fixtures to replace our florescent lighting. With Matthew's help, today the 6 light fixtures were replaced, a necessary wireless carbon detector and GFCI outlet installed, and for fun and convenience, 2 USB outlets given. Special note: the GFCI outlet wasn’t a simple swap-out. Nate had to cut into the trim for that installation, which he did incredibly cleanly and precisely. Upon completion, the work areas were cleared of trash and left in great condition. Thank you so much for all your work, your attention to detail, for caring."

Judy M on March 2025

"At Awesome Home Services, we believe in the power of small businesses to make a significant impact. Our vision is to enrich the lives of our employees and deliver exceptional service to our clients. We are committed to: Community Engagement: We are passionate about the cities we operate in and are dedicated to contributing positively to this great community. Employee Empowerment: We create opportunities and a supportive environment for our team, fostering growth and professional development. Excellence in Service: Striving to be your whole-home service expert, we specialize in HVAC, plumbing, and electrical services. We love people, the trades, and our community. At Awesome Home Services, we are more than a business; we are a part of this community, committed to making a difference."

"Nate Medford conducted our electrical inspection offered by the Awesome Club Membership Program. Nate didn't just inspect, he explained. He also didn't just explain, he corrected issues along the way. Today he brought our subpanel up to code and prevented a probable electrical fire. In addition, Nate spent lengthy time on the phone with me last week, giving clear guidance on LED fixtures to replace our florescent lighting. With Matthew's help, today the 6 light fixtures were replaced, a necessary wireless carbon detector and GFCI outlet installed, and for fun and convenience, 2 USB outlets given. Special note: the GFCI outlet wasn’t a simple swap-out. Nate had to cut into the trim for that installation, which he did incredibly cleanly and precisely. Upon completion, the work areas were cleared of trash and left in great condition. Thank you so much for all your work, your attention to detail, for caring."

Judy M on March 2025

...
Showing 1-10 of 962

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.
A man installs a new shower
Apr 17, 2025
Apr 17, 2025
A shower remodel can completely transform your bathroom. Start budgeting for shower remodel costs and get ready for the shower of your dreams.
A stylish toilet in bathroom
Apr 1, 2025
Apr 1, 2025
Budget for sewer ejector pump costs based on factors such as pump capacity, pump material, maintenance, professional labor, and more.
new toilet in modern bathroom
Mar 31, 2025
Mar 31, 2025
Learn how much toilet installation costs, exploring factors like labor, plumbing, removal fees, and additional expenses.
A drop of pure water dripping from the tap
Mar 28, 2025
Mar 28, 2025
The cost to fix a leaky faucet depends on the type of faucet, the cause of the leak, and the necessary parts. Most homeowners spend an average of $270 on this project.
Rainwater barrel in the garden
Mar 26, 2025
Mar 26, 2025
Explore the landscape of rainwater collection system costs and see how system size, storage location, and filtration impact your total investment.
Leaking water from a blue pipe underground
Mar 23, 2025
Mar 23, 2025
Use this guide to budget for slab leak repair costs based on factors like professional labor, detection, repair type, and related services.
Share project details to get started.