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
Tankless water heater installers in Old Hickory
Hoffmann Brothers is Nashville's preferred home service provider for Heating, Cooling, Plumbing and Electrical services. For over 40 years, we've been dedicated to exceeding your expectations. Our skilled team of HVAC professionals, plumbers and electricians ensure your home stays comfortable year-round. We are committed to providing quality, trustworthy services and providing homeowners the tools to make the right decisions for their homes. If you're in need of home repairs, maintenance or installation, call Hoffmann Brothers for top-notch service you can count on!
Hoffmann Brothers is Nashville's preferred home service provider for Heating, Cooling, Plumbing and Electrical services. For over 40 years, we've been dedicated to exceeding your expectations. Our skilled team of HVAC professionals, plumbers and electricians ensure your home stays comfortable year-round. We are committed to providing quality, trustworthy services and providing homeowners the tools to make the right decisions for their homes. If you're in need of home repairs, maintenance or installation, call Hoffmann Brothers for top-notch service you can count on!
We have 85 years of industry experience and are dedicated to providing our clients with the very best in installation, service, and repair for your heating, cooling and plumbing needs. Our company foundation is built on honesty and integrity. We specialize in Central A/C, Water Purification systems in addition to a variety of HVAC and Plumbing-related projects 24 hours a day/ 7 days a week. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients and guarantee your satisfaction!
"Thoroughly enjoyed working with The Maynard Man. Quick and easy estimate with multiple options explained. I loved the simple financing application and approval process in seconds. The work performed was exquisite. Highly recommend!"
Robert V on May 2025
We have 85 years of industry experience and are dedicated to providing our clients with the very best in installation, service, and repair for your heating, cooling and plumbing needs. Our company foundation is built on honesty and integrity. We specialize in Central A/C, Water Purification systems in addition to a variety of HVAC and Plumbing-related projects 24 hours a day/ 7 days a week. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients and guarantee your satisfaction!
"Thoroughly enjoyed working with The Maynard Man. Quick and easy estimate with multiple options explained. I loved the simple financing application and approval process in seconds. The work performed was exquisite. Highly recommend!"
Robert V on May 2025
When managing your home's plumbing system, it's important to have a local plumbing company in Hendersonville you can turn to to keep things draining and flowing as they should. Whether your drain is clogged, your water heater has failed, or you're not quite sure what is causing your home's plumbing problems, choose Mr. Rooter® Plumbing to help! Were always here for both homes and businesses throughout Hendersonville and the surrounding areas and ensure that our plumbers always deliver the high-quality plumbing repairs and customer care were known for.
"It’s was great"
Stephen B on May 2024
When managing your home's plumbing system, it's important to have a local plumbing company in Hendersonville you can turn to to keep things draining and flowing as they should. Whether your drain is clogged, your water heater has failed, or you're not quite sure what is causing your home's plumbing problems, choose Mr. Rooter® Plumbing to help! Were always here for both homes and businesses throughout Hendersonville and the surrounding areas and ensure that our plumbers always deliver the high-quality plumbing repairs and customer care were known for.
"It’s was great"
Stephen B on May 2024
Jewell Mechanical, LLC, is a family owned and operated company serving the Nashville metro area specializing in commercial, industrial and residential plumbing, heating and air conditioning, service, preventative maintenance and installation. With a small company attitude with large company capability, our skilled professionals serve our clients with honesty, integrity, and expertise. Jewell is accredited by the BBB, a member of the Nashville Chamber of Commerce and AGC. Jewell is a drug free workplace and all employees are background checked.
"They did an outstanding job for me."
Anthony C on May 2025
Jewell Mechanical, LLC, is a family owned and operated company serving the Nashville metro area specializing in commercial, industrial and residential plumbing, heating and air conditioning, service, preventative maintenance and installation. With a small company attitude with large company capability, our skilled professionals serve our clients with honesty, integrity, and expertise. Jewell is accredited by the BBB, a member of the Nashville Chamber of Commerce and AGC. Jewell is a drug free workplace and all employees are background checked.
"They did an outstanding job for me."
Anthony C on May 2025
AT Fred Oakley Construction Company, we are experienced professionals providing quality Kitchen, Bathroom and Interior Remodeling in the Hendersonville/Greater Nashville/Middle Tennessee area. We use only quality sub-contractors that cover every aspect of Construction and remodeling. Call us today at 615-975-8916 to schedule an appointment. We look forward to serving your home improvement needs. "When it comes to Quality Remodeling, WE NAIL IT!
"We have a home that was built in 1930, that is loaded with charm but needed some adapting to our family’s needs. It had two too many doors and one large window that we never used because it looked directly at the neighbor’s driveway! We also needed to have new windows and floors installed, custom bookshelves built, and of course new paint. We decided to hire Fred because from Day One you could tell he was someone that was knowledgable and someone you can trust. Having someone you can trust to do projects in your home is so important because they become a part of your lives for at least a month or so! Fred took care of everything: the supples, installation, paint, and making sure that the brick installers completed the job successfully as well. I now have an office that used to be an “all weather” porch that I can actually be in all day, another office/second bedroom that has more wall space thanks to the seamless work Fred did in closing up a large window and door (not to mention it was with plaster!) He was really precise in doing “delicate demo” since we were trying to save as much of the old house charm as possible. We were even able to use one of the doors in my new office, and it looks beautiful. Cost wise, everything was up front and there were no surprises (even though he was very gracious about us adding items along the way (like extra plugs and installing a storm door). We also had our attic re-insulated and part of our floor lifted which Fred took care of as well. He communicated with us every step along the way, which is also so important. We hope to have a custom closet installed in the near future and will definitely call Fred to do that project as well! 10/10 recommend Fred Oakley for your home renovations!"
Anna B on April 2025
AT Fred Oakley Construction Company, we are experienced professionals providing quality Kitchen, Bathroom and Interior Remodeling in the Hendersonville/Greater Nashville/Middle Tennessee area. We use only quality sub-contractors that cover every aspect of Construction and remodeling. Call us today at 615-975-8916 to schedule an appointment. We look forward to serving your home improvement needs. "When it comes to Quality Remodeling, WE NAIL IT!
"We have a home that was built in 1930, that is loaded with charm but needed some adapting to our family’s needs. It had two too many doors and one large window that we never used because it looked directly at the neighbor’s driveway! We also needed to have new windows and floors installed, custom bookshelves built, and of course new paint. We decided to hire Fred because from Day One you could tell he was someone that was knowledgable and someone you can trust. Having someone you can trust to do projects in your home is so important because they become a part of your lives for at least a month or so! Fred took care of everything: the supples, installation, paint, and making sure that the brick installers completed the job successfully as well. I now have an office that used to be an “all weather” porch that I can actually be in all day, another office/second bedroom that has more wall space thanks to the seamless work Fred did in closing up a large window and door (not to mention it was with plaster!) He was really precise in doing “delicate demo” since we were trying to save as much of the old house charm as possible. We were even able to use one of the doors in my new office, and it looks beautiful. Cost wise, everything was up front and there were no surprises (even though he was very gracious about us adding items along the way (like extra plugs and installing a storm door). We also had our attic re-insulated and part of our floor lifted which Fred took care of as well. He communicated with us every step along the way, which is also so important. We hope to have a custom closet installed in the near future and will definitely call Fred to do that project as well! 10/10 recommend Fred Oakley for your home renovations!"
Anna B on April 2025
Your plumbing system is a crucial part of your home that does a lot to help keep it comfortable, functional and sanitary. When managing your home’s plumbing system, you will likely need help from time to time in order to keep things draining and flowing as they should. That's why it's so important to have someone you can turn to when you need a qualified plumber in Hendersonville, TN. Whether your drain is clogged, your water heater has failed, or you’re not quite sure what is causing your home’s plumbing problems, choose the dependable, licensed team at Mr. Rooter Plumbing of Hendersonville to help! We’re always here for both homes and businesses throughout Hendersonville and the surrounding areas and ensure that our plumbers always deliver the high-quality plumbing repairs and customer care we’re known for.
"They did a good job and the workers were great the only issue i have is they didnt install a water shut off even though i had one in the old system and i wasn’t told the price i was given to do the job didnt include one until the end of the job i would have paid extra for it i had to change a water filter since the job was done and i have to go to the street to turn off the water if i have a busted line in winter and the box is covered in ice and snow how will i get the water off this is my only gripe about the work no full disclosure i was in a rush to get it fixed it was leaking bad they should disclosed that when the estimate was done its made me rethink using them in the future"
Mike P on September 2024
Your plumbing system is a crucial part of your home that does a lot to help keep it comfortable, functional and sanitary. When managing your home’s plumbing system, you will likely need help from time to time in order to keep things draining and flowing as they should. That's why it's so important to have someone you can turn to when you need a qualified plumber in Hendersonville, TN. Whether your drain is clogged, your water heater has failed, or you’re not quite sure what is causing your home’s plumbing problems, choose the dependable, licensed team at Mr. Rooter Plumbing of Hendersonville to help! We’re always here for both homes and businesses throughout Hendersonville and the surrounding areas and ensure that our plumbers always deliver the high-quality plumbing repairs and customer care we’re known for.
"They did a good job and the workers were great the only issue i have is they didnt install a water shut off even though i had one in the old system and i wasn’t told the price i was given to do the job didnt include one until the end of the job i would have paid extra for it i had to change a water filter since the job was done and i have to go to the street to turn off the water if i have a busted line in winter and the box is covered in ice and snow how will i get the water off this is my only gripe about the work no full disclosure i was in a rush to get it fixed it was leaking bad they should disclosed that when the estimate was done its made me rethink using them in the future"
Mike P on September 2024
Gibson Interiors has left a legacy of quality craftsmanship across middle Tennessee. Our projects range from simple tile back splash installations, all the way to full kitchen and bath renewals. we can help you Dream, Design and Build your dream space. we have access to a team of designers, as well several vendors of both kitchen and bathroom cabinetry, stone, tile, lighting, fixtures etc. Simply put we have the people and processes in place to take your project from start to finish, with in house, professional tradesmen and women.
"Overall pathetic job. I hired this contractor for a kitchen remodel. They were quick to accept money but extremely slow to work. Some of the cabinets were chipped and installed doors on the wrong side. After 9 months of not finishing a small kitchen, I ended up firing them. They’re dishonest. Do yourself a favor and hire someone else!"
Chad H on December 2024
Gibson Interiors has left a legacy of quality craftsmanship across middle Tennessee. Our projects range from simple tile back splash installations, all the way to full kitchen and bath renewals. we can help you Dream, Design and Build your dream space. we have access to a team of designers, as well several vendors of both kitchen and bathroom cabinetry, stone, tile, lighting, fixtures etc. Simply put we have the people and processes in place to take your project from start to finish, with in house, professional tradesmen and women.
"Overall pathetic job. I hired this contractor for a kitchen remodel. They were quick to accept money but extremely slow to work. Some of the cabinets were chipped and installed doors on the wrong side. After 9 months of not finishing a small kitchen, I ended up firing them. They’re dishonest. Do yourself a favor and hire someone else!"
Chad H on December 2024
Benjamin Franklin Plumbing - "The Punctual Plumber." Our on-time guarantee is one of the best in the country, and your complete satisfaction with both our service and plumbers is 100% guaranteed. At Benjamin Franklin Plumbing® your complete satisfaction with both our service and plumbers is 100% guaranteed. Our on-time guarantee is one of the best in the country, and backed by highly skilled plumbers that are expertly trained and experienced to exceed your expectations. Simply put, when you choose Benjamin Franklin Plumbing® for all your plumbing problems, you can’t lose. DBA Ben Franklin Plumbing Addition ph # (615)244-5537. Award wining.
"Did a good job."
Patrick C on February 2024
Benjamin Franklin Plumbing - "The Punctual Plumber." Our on-time guarantee is one of the best in the country, and your complete satisfaction with both our service and plumbers is 100% guaranteed. At Benjamin Franklin Plumbing® your complete satisfaction with both our service and plumbers is 100% guaranteed. Our on-time guarantee is one of the best in the country, and backed by highly skilled plumbers that are expertly trained and experienced to exceed your expectations. Simply put, when you choose Benjamin Franklin Plumbing® for all your plumbing problems, you can’t lose. DBA Ben Franklin Plumbing Addition ph # (615)244-5537. Award wining.
"Did a good job."
Patrick C on February 2024
Full Kitchen and Bathroom remodels, Cabinetry, Counter-tops, Hardwood flooring, Tile Installation, window window installation/replacement, exterior door installation, Electrical and plumbing repair/ remodel work. If you can think of it. We can do it. Nothing Too Big or Too Small.
"It is going well. Product was delivered & issues with the delivery were promptly addressed by Walter."
William R on April 2025
Full Kitchen and Bathroom remodels, Cabinetry, Counter-tops, Hardwood flooring, Tile Installation, window window installation/replacement, exterior door installation, Electrical and plumbing repair/ remodel work. If you can think of it. We can do it. Nothing Too Big or Too Small.
"It is going well. Product was delivered & issues with the delivery were promptly addressed by Walter."
William R on April 2025
At Amberstone Restoration, we pride ourselves on being the trusted choice for comprehensive services. With decades of experience and a commitment to excellence, Amberstone stands apart through our dedication to restoring not just properties, but peace of mind. We prioritize customer satisfaction, offering personalized solutions tailored to each client’s unique needs. Whether responding to emergency situations or executing long-term projects, Amberstone delivers results with integrity and reliability for unparalleled service and restoration expertise you can trust.
"This hasn’t been a smooth process for me. There was a lack of communication. The team that came out was not prepared or detailed oriented and they did not properly cleanup their messes. When they arrived they did actually work the work just wasn’t satisfactory. I appreciate that Tristan did attempt to make things right. I’m disappointed at the fact that I wasn’t included in the decision making process as only I have a vision of how I want my home to look. The door is gorgeous. Thank you to Roger Soto for making the effort to do the work with pride and effort. Just because it wasn’t a smooth process for me doesn’t mean the same for you. Things were not conducted to my expectations. This may not be how Amberstone does business or wants to be known to operate but this is what happened. And this is my honest review as a patronage of a business I have a right to leave a review of my experience regardless if it’s positive or negative it’s not personal."
Raphinette Q on May 2025
At Amberstone Restoration, we pride ourselves on being the trusted choice for comprehensive services. With decades of experience and a commitment to excellence, Amberstone stands apart through our dedication to restoring not just properties, but peace of mind. We prioritize customer satisfaction, offering personalized solutions tailored to each client’s unique needs. Whether responding to emergency situations or executing long-term projects, Amberstone delivers results with integrity and reliability for unparalleled service and restoration expertise you can trust.
"This hasn’t been a smooth process for me. There was a lack of communication. The team that came out was not prepared or detailed oriented and they did not properly cleanup their messes. When they arrived they did actually work the work just wasn’t satisfactory. I appreciate that Tristan did attempt to make things right. I’m disappointed at the fact that I wasn’t included in the decision making process as only I have a vision of how I want my home to look. The door is gorgeous. Thank you to Roger Soto for making the effort to do the work with pride and effort. Just because it wasn’t a smooth process for me doesn’t mean the same for you. Things were not conducted to my expectations. This may not be how Amberstone does business or wants to be known to operate but this is what happened. And this is my honest review as a patronage of a business I have a right to leave a review of my experience regardless if it’s positive or negative it’s not personal."
Raphinette Q on May 2025
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.
- Plumbing - Multiple Projects
- Shower Pan Install
- Plumbing for a Remodel or Addition - Install
- Plumbing Item Repair
- Water Heater - Repair or Service
- Sink Repair
- Steam Shower - Install
- Faucet Install or Replace
- Walk In Tub - Install or Replace
- Drain Repair
- Shower Install or Replace
- Pipe Repair
- Drain Line Breakage - Camera Locate
- Water Main - Install, Replace or Repair
- Sump Pump - Repair or Replace
- Drain Clog or Blockage - Clear
- Sewer Main - Clear
- Faucets, Fixtures and Pipes - Repair or Replace
- Plumbing Item Installation
- Sink Installation
- Pipe Installation
- Faucet Installation
- Toilet Install or Repair
- Whirlpool Bathtub Install or Replace
- Plumbing Multi-Item Installation
- Water Heater - Install or Replace
- Sewer Main - Install, Replace or Repair
- Drain Installation
- Plumbing Multi-item Repair
- Toilet Installation
- Bathtub Install or Replace
- Sump Pump or Interior Foundation Drains - Install
- Birmingham
- Phoenix
- Tucson
- Fresno
- Long Beach
- Los Angeles
- Modesto
- Sacramento
- San Diego
- San Francisco
- San Jose
- Denver
- Hartford
- Washington DC
- Fort Lauderdale
- Jacksonville
- Miami
- Orlando
- Tampa
- Atlanta
- Chicago
- Indianapolis
- Louisville
- New Orleans
- Baltimore
- Boston
- Detroit
- Grand Rapids
- Minneapolis
- Saint Paul
- Kansas City
- Saint Louis
- Las Vegas
- Albany
- New York
- Asheville
- Charlotte
- Greensboro
- Raleigh
- Winston Salem
- Cincinnati
- Cleveland
- Columbus
- Oklahoma City
- Portland
- Harrisburg
- Philadelphia
- Pittsburgh
- Providence
- Memphis
- Nashville
- Austin
- Dallas
- El Paso
- Fort Worth
- Houston
- San Antonio
- Salt Lake City
- Norfolk
- Richmond
- Virginia Beach
- Seattle
- Madison
- Milwaukee
Get our Angi-powered app
