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 Wilmington

On Line Mechanical Service
6874 Pleasant Run Lane
4.83(
53
)
Approved Pro
On Line Mechanical Service
6874 Pleasant Run Lane
4.83(
53
)
Approved Pro
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
31 local quotes requested

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer’s needs. 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.

"David young (owner of Online Mechanical Svc) signed a contact on 02-13-25 for $5,600 to perform rough in plumbing for a bathroom in the basement. He completed the job and got rough in approval. He told me I dont need final inspection and took full payment on 3/6/25. Later I found that I need final inspection. I finished the job and asked him to call for the final inspection on 4/14/25. He declined to do that because he demanded extra money to finish the job to call for a final inspection. He puts me in a spot where he can squeeze more money from me. He threatened me that he will cancel the permit since I did not paid him extra to finish the job."

Hasan L on April 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer’s needs. 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.

"David young (owner of Online Mechanical Svc) signed a contact on 02-13-25 for $5,600 to perform rough in plumbing for a bathroom in the basement. He completed the job and got rough in approval. He told me I dont need final inspection and took full payment on 3/6/25. Later I found that I need final inspection. I finished the job and asked him to call for the final inspection on 4/14/25. He declined to do that because he demanded extra money to finish the job to call for a final inspection. He puts me in a spot where he can squeeze more money from me. He threatened me that he will cancel the permit since I did not paid him extra to finish the job."

Hasan L on April 2025


Avatar for Precision Plumbing, Heating & Air
Precision Plumbing, Heating & Air
509 Sports Street
5.00(
4
)
Approved Pro
Precision Plumbing, Heating & Air
509 Sports Street
5.00(
4
)
Approved Pro
Super Service Award
Customers say: Quick response
13 local quotes requested
8 years of experience

Welcome to Precision Plumbing, Heating & Air, proudly servicing Fairborn and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed.

"Great work"

Michael J on August 2024

Welcome to Precision Plumbing, Heating & Air, proudly servicing Fairborn and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed.

"Great work"

Michael J on August 2024


Handyman Connection of Blue Ash
11115 Kenwood Road
New on HomeAdvisorNew on Angi
Approved Pro
Handyman Connection of Blue Ash
11115 Kenwood Road
New on AngiNew on HomeAdvisor
Approved Pro
21 local quotes requested
32 years of experience

For every home maintenance need that may arise, Handyman Connection is committed to providing you with dependable and skilled handyman, great customer service, and first class workmanship. Just one call or click brings our expertise right to your door. Handyman Connection can help turn your "to-do" list into "done." Home repairs and remodeling is what we get excited about, Handyman Connection is your single solution for that list of home maintenance that seems to grow longer every day. Whether you need something installed, built, fixed or maintained, we are your reliable and trusted partner for all your home needs. At Handyman Connection, our mission is the same as yours ? Making your home a great place to live. As North America's original ? And leading ? Home maintenance specialists, you can rest easy knowing your home maintenance, home repair, renovation, or remodeling job is in experienced hands. We're not just proud of our workmanship ? We guarantee it.

For every home maintenance need that may arise, Handyman Connection is committed to providing you with dependable and skilled handyman, great customer service, and first class workmanship. Just one call or click brings our expertise right to your door. Handyman Connection can help turn your "to-do" list into "done." Home repairs and remodeling is what we get excited about, Handyman Connection is your single solution for that list of home maintenance that seems to grow longer every day. Whether you need something installed, built, fixed or maintained, we are your reliable and trusted partner for all your home needs. At Handyman Connection, our mission is the same as yours ? Making your home a great place to live. As North America's original ? And leading ? Home maintenance specialists, you can rest easy knowing your home maintenance, home repair, renovation, or remodeling job is in experienced hands. We're not just proud of our workmanship ? We guarantee it.


Avatar for Eco Plumbers, Electricians, and HVAC Technicians
Eco Plumbers, Electricians, and HVAC Technicians
1851 S Metro Pkwy
4.65(
548
)
Approved Pro
Eco Plumbers, Electricians, and HVAC Technicians
1851 S Metro Pkwy
4.65(
548
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
93 local quotes requested

Whatever the task, large or small, our focus is on helping you explore your options, so that you can balance functionality, environmental friendliness, and price for your project. No matter what you decide, we'll employ our knowledge and experience to better suit you, your wallet, and our environment.

"Very pleased with service, from communication to finishing job. The plumber was very professional and friendly. Kept me informed on everything he was doing. Would definitely hire again. Thanks Devonte <friendly and knowledgeable 😁👍"

patricia w on March 2025

Whatever the task, large or small, our focus is on helping you explore your options, so that you can balance functionality, environmental friendliness, and price for your project. No matter what you decide, we'll employ our knowledge and experience to better suit you, your wallet, and our environment.

"Very pleased with service, from communication to finishing job. The plumber was very professional and friendly. Kept me informed on everything he was doing. Would definitely hire again. Thanks Devonte <friendly and knowledgeable 😁👍"

patricia w on March 2025


McLean Plumbing
154 Richland Road
4.92(
23
)
Approved Pro
McLean Plumbing
154 Richland Road
4.92(
23
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
126 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.

"very satisfied with the services"

Dave C on January 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.

"very satisfied with the services"

Dave C on January 2025


Avatar for FLOW FORCE LLC
FLOW FORCE LLC
212 Marlee Dr
New on HomeAdvisorNew on Angi
Approved Pro
FLOW FORCE LLC
212 Marlee Dr
New on AngiNew on HomeAdvisor
Approved Pro
14 local quotes requested
1 years of experience

Flow Force LLC is dedicated to top-quality plumbing services with a hands-on approach that puts customer satisfaction first. Owned by Cole, we have over six years of experience tackling tough jobs others won’t, specializing in sewer main clearing and providing 24/7 emergency service. Our work is built on integrity, competitive pricing, and timely completion, ensuring you get the best results without compromise. With a blend of knowledge, research, and real-world expertise, we deliver solutions tailored to your needs. Contact us today for a fair and accurate estimate—we look forward to serving you!

Flow Force LLC is dedicated to top-quality plumbing services with a hands-on approach that puts customer satisfaction first. Owned by Cole, we have over six years of experience tackling tough jobs others won’t, specializing in sewer main clearing and providing 24/7 emergency service. Our work is built on integrity, competitive pricing, and timely completion, ensuring you get the best results without compromise. With a blend of knowledge, research, and real-world expertise, we deliver solutions tailored to your needs. Contact us today for a fair and accurate estimate—we look forward to serving you!


Bassett Services - Western Ohio
4030 Mt Carmel Tobasco Rd Ste 101A
New on HomeAdvisorNew on Angi
Approved Pro
Bassett Services - Western Ohio
4030 Mt Carmel Tobasco Rd Ste 101A
New on AngiNew on HomeAdvisor
Approved Pro
20 local quotes requested
37 years of experience

Today’s heating/cooling systems are more efficient and use more sophisticated digital controllers for their operations. Proper installation and maintenance is important and having the right technicians and service people to ensure proper operations is critical. Bassett Services has a special process for selecting individuals who can perform the technical functions that are required to service the equipment we sell and, most importantly, interface with our customers on a very professional level!

Today’s heating/cooling systems are more efficient and use more sophisticated digital controllers for their operations. Proper installation and maintenance is important and having the right technicians and service people to ensure proper operations is critical. Bassett Services has a special process for selecting individuals who can perform the technical functions that are required to service the equipment we sell and, most importantly, interface with our customers on a very professional level!


Avatar for Eco Plumbers, Electricians, and HVAC Technicians
Eco Plumbers, Electricians, and HVAC Technicians
1851 S Metro Pkwy
4.97(
487
)
Approved Pro
Eco Plumbers, Electricians, and HVAC Technicians
1851 S Metro Pkwy
4.97(
487
)
Approved Pro
Customers say: True professional
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
1024 local quotes requested

We come through for you when you need us to! Eco Plumbers, Electricians, and HVAC Technicians provides excellent service and craftsmanship by our highly skilled team of tradespersons, whether you need a repair, an upgrade or a full replacement to your plumbing or sewer systems, heating and cooling systems or your electrical system. Our goal is to help you explore your options so that you can make the best buying decision, balancing functionality, environmental friendliness, and price for your project. No matter what you decide, we'll employ our knowledge and experience to make your home safe, comfortable and convenient. Our EcoFi Advantage membership is one of the best values to protect your investment in your home! We are committed to prompt, professional, and on-time service and even offer online scheduling on our website at www.geteco.com Serving central Ohio since 2007; Dayton region since 2021; Cincinnati region since 2023

"Happy to give a 'very satisfied customer review'. Firstly, I have to say Eco provides a very professional service. I was delighted with my service gentleman, Aaron. He was very knowledgeable, customer-friendly, diligent, and works well with contingencies. I'm glad to be doing business with the company and highly recommend their services. Thank you."

Tamara M on May 2025

We come through for you when you need us to! Eco Plumbers, Electricians, and HVAC Technicians provides excellent service and craftsmanship by our highly skilled team of tradespersons, whether you need a repair, an upgrade or a full replacement to your plumbing or sewer systems, heating and cooling systems or your electrical system. Our goal is to help you explore your options so that you can make the best buying decision, balancing functionality, environmental friendliness, and price for your project. No matter what you decide, we'll employ our knowledge and experience to make your home safe, comfortable and convenient. Our EcoFi Advantage membership is one of the best values to protect your investment in your home! We are committed to prompt, professional, and on-time service and even offer online scheduling on our website at www.geteco.com Serving central Ohio since 2007; Dayton region since 2021; Cincinnati region since 2023

"Happy to give a 'very satisfied customer review'. Firstly, I have to say Eco provides a very professional service. I was delighted with my service gentleman, Aaron. He was very knowledgeable, customer-friendly, diligent, and works well with contingencies. I'm glad to be doing business with the company and highly recommend their services. Thank you."

Tamara M on May 2025


Avatar for Mr. Rooter Plumbing Of Greater Cincinnati
Mr. Rooter Plumbing Of Greater Cincinnati
9772 PRINCETON GLENDALE RD
3.67(
66
)
Approved Pro
Mr. Rooter Plumbing Of Greater Cincinnati
9772 PRINCETON GLENDALE RD
3.67(
66
)
Approved Pro
Customers say: Super punctual
1476 local quotes requested
23 years of experience

At Mr. Rooter® Plumbing every customer’s individual needs are important. Whether it’s a simple sink clog or a damaged sewer line, you can count on a Mr. Rooter plumber to take care of your plumbing needs – day or night – with never an overtime charge. Our professional service, quality products and honest, up-front pricing make Mr. Rooter the best value in plumbing services nationwide. Mr. Rooter is ready for all emergency plumbing issues, from clogged drains and sewage backups to frozen pipes and leaking water heaters. You can count on an expert diagnosis from Mr. Rooter with our camera inspection tools. Then we’ll fix it right the first time, whether it takes HydroScrub® drain cleaning or trenchless pipe repair, with courteous smiles on our faces. There's a reason they call us Mr.® Call your local Mr. Rooter today.

"They were great and fast to finish."

Cherie L on April 2025

At Mr. Rooter® Plumbing every customer’s individual needs are important. Whether it’s a simple sink clog or a damaged sewer line, you can count on a Mr. Rooter plumber to take care of your plumbing needs – day or night – with never an overtime charge. Our professional service, quality products and honest, up-front pricing make Mr. Rooter the best value in plumbing services nationwide. Mr. Rooter is ready for all emergency plumbing issues, from clogged drains and sewage backups to frozen pipes and leaking water heaters. You can count on an expert diagnosis from Mr. Rooter with our camera inspection tools. Then we’ll fix it right the first time, whether it takes HydroScrub® drain cleaning or trenchless pipe repair, with courteous smiles on our faces. There's a reason they call us Mr.® Call your local Mr. Rooter today.

"They were great and fast to finish."

Cherie L on April 2025


Avatar for F&S CONTRACTORS PLUS
F&S CONTRACTORS PLUS
4476 ST. RT. 133
5.00(
1
)
Approved Pro
F&S CONTRACTORS PLUS
4476 ST. RT. 133
5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
150 local quotes requested

Family Owned and Operated Since 1992! Here at, F&S Contractors Plus we sustain our business 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.

"They were very professional. They got the job done. They were timely and they did a good job."

Tracy D on April 2023

Family Owned and Operated Since 1992! Here at, F&S Contractors Plus we sustain our business 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.

"They were very professional. They got the job done. They were timely and they did a good job."

Tracy D on April 2023

...
Showing 1-10 of 876

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.
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.
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.
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.