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 Gastonia

Walker Plumbing Services
308 W. King St
4.80(
5
)
Approved Pro
Walker Plumbing Services
308 W. King St
4.80(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

Here at Walker Plumbing Services, 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 quality plumbing services. You will find us to be competitively priced with 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! Please call us today to schedule your appointment!

"Very informative and friendly guys. Would highly recommend them for any plumbing issues or upgrades!"

Brent M on September 2022

Here at Walker Plumbing Services, 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 quality plumbing services. You will find us to be competitively priced with 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! Please call us today to schedule your appointment!

"Very informative and friendly guys. Would highly recommend them for any plumbing issues or upgrades!"

Brent M on September 2022


Avatar for Superior Plumbing and Drains
Superior Plumbing and Drains
1506 Miller Street
4.66(
358
)
Approved Pro
Superior Plumbing and Drains
1506 Miller Street
4.66(
358
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
165 local quotes requested

At Superior Plumbing and Drains, LLC, we prioritize quality over quantity, ensuring every plumbing project is completed with expertise and precision. With years of experience, our skilled team is dedicated to delivering exceptional service, backed by honesty and a commitment to customer satisfaction. We proudly serve Monroe, NC, Gastonia, NC, and surrounding areas, including Union County, the Charlotte metro, Gaston and Cleveland counties, and parts of upper York County, SC. Our services include: - Plumbing Installation & Repair - 24/7 Emergency Services - Drain Services & Jetting - Tankless Water Heaters - Water Filtration Systems - Leak Detection & Repairs - Water Heater Services For a consultation or estimate, call us today: 📍 Monroe/Charlotte area: (704) 289-6858 📍 Gaston area: (704) 813-2888 We look forward to serving you!

"Friendly, helpful, and knowledgeable folks."

Andy J on March 2025

At Superior Plumbing and Drains, LLC, we prioritize quality over quantity, ensuring every plumbing project is completed with expertise and precision. With years of experience, our skilled team is dedicated to delivering exceptional service, backed by honesty and a commitment to customer satisfaction. We proudly serve Monroe, NC, Gastonia, NC, and surrounding areas, including Union County, the Charlotte metro, Gaston and Cleveland counties, and parts of upper York County, SC. Our services include: - Plumbing Installation & Repair - 24/7 Emergency Services - Drain Services & Jetting - Tankless Water Heaters - Water Filtration Systems - Leak Detection & Repairs - Water Heater Services For a consultation or estimate, call us today: 📍 Monroe/Charlotte area: (704) 289-6858 📍 Gaston area: (704) 813-2888 We look forward to serving you!

"Friendly, helpful, and knowledgeable folks."

Andy J on March 2025


Avatar for Mr. Rooter Plumbing of Charlotte
Mr. Rooter Plumbing of Charlotte
9305-G Monroe Rd.
4.74(
70
)
Approved Pro
Mr. Rooter Plumbing of Charlotte
9305-G Monroe Rd.
4.74(
70
)
Approved Pro
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
262 local quotes requested

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.

"he did a great job also for the value. I highly recommended"

Jesse J on April 2024

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.

"he did a great job also for the value. I highly recommended"

Jesse J on April 2024


Avatar for HotCo The Hot Water Heater Company
HotCo The Hot Water Heater Company
516 Tysons Forest
4.96(
83
)
Approved Pro
HotCo The Hot Water Heater Company
516 Tysons Forest
4.96(
83
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
102 local quotes requested

At HotCo The Hot Water Heater Company, we pride our company on reliability, great communication, integrity and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts and will always keep you educated about the work process. We look forward to earning your business.

"All the reviews I read for Hotco were accurate. Prompt response to my inquiry, prompt pricing…(and reasonable,) arrived as scheduled, the work took roughly the amount of time that was estimated… David from Hotco was courteous, professional, and knowledgeable. He even showed me some of the gunk that collected the bottom of the water heater, and caused its failure. I really can not think of a better experience I’ve had with a service provider. And yes, I’m a real person. :)"

Robert K on April 2025

At HotCo The Hot Water Heater Company, we pride our company on reliability, great communication, integrity and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts and will always keep you educated about the work process. We look forward to earning your business.

"All the reviews I read for Hotco were accurate. Prompt response to my inquiry, prompt pricing…(and reasonable,) arrived as scheduled, the work took roughly the amount of time that was estimated… David from Hotco was courteous, professional, and knowledgeable. He even showed me some of the gunk that collected the bottom of the water heater, and caused its failure. I really can not think of a better experience I’ve had with a service provider. And yes, I’m a real person. :)"

Robert K on April 2025


Avatar for Plumbing Experts, LLC
Plumbing Experts, LLC
120 Lakeshore Drive
4.82(
70
)
Approved Pro
Plumbing Experts, LLC
120 Lakeshore Drive
4.82(
70
)
Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
27 local quotes requested

Plumbing Experts is committed to excellence. Read why clients prefer us: 1 - Our tank type water heaters - Made in USA 2 - Our tankless water heaters - Made in USA 3 - We guarantee we have the lowest price, in writing 4 - We guarantee we have the longest warranty too 5 - We answer texts 7 days a week 6 - We do off-site quotes, guaranteed, 7 days a week 7 - We do emergency installations, at no extra charge 8 - Our lifetime parts/labor warranty on all gas piping Our water heating solutions offer $$ savings, space savings, instant hot water & never-ending hot water. We specialize in custom water heating solutions & sizing for the commercial space as well.

"Expert installation and very knowledgeable"

Daniel M on September 2024

Plumbing Experts is committed to excellence. Read why clients prefer us: 1 - Our tank type water heaters - Made in USA 2 - Our tankless water heaters - Made in USA 3 - We guarantee we have the lowest price, in writing 4 - We guarantee we have the longest warranty too 5 - We answer texts 7 days a week 6 - We do off-site quotes, guaranteed, 7 days a week 7 - We do emergency installations, at no extra charge 8 - Our lifetime parts/labor warranty on all gas piping Our water heating solutions offer $$ savings, space savings, instant hot water & never-ending hot water. We specialize in custom water heating solutions & sizing for the commercial space as well.

"Expert installation and very knowledgeable"

Daniel M on September 2024


Avatar for Brothers- ARS Air, Heat, and Plumbing
Brothers- ARS Air, Heat, and Plumbing
1320 East Main Street
4.09(
35
)
Approved Pro
Brothers- ARS Air, Heat, and Plumbing
1320 East Main Street
4.09(
35
)
Approved Pro
Customers say: True professional
430 local quotes requested
30 years of experience

Brothers is a trusted service provider in heating, air conditioning, plumbing and indoor air quality. Our courteous HVAC and Plumbing technicians are available 24/7 to provide you with expert service and repair. Our Comfort Advisors are ready to help you make the most effective installation or replacement decisions based on your home comfort needs. We are licensed and insured Estimates provided before work begins Major credit cards accepted. 100% financing with approved credit Residential and Commercial

"Fast, friend and professional. Did a great job."

Jason B on February 2025

Brothers is a trusted service provider in heating, air conditioning, plumbing and indoor air quality. Our courteous HVAC and Plumbing technicians are available 24/7 to provide you with expert service and repair. Our Comfort Advisors are ready to help you make the most effective installation or replacement decisions based on your home comfort needs. We are licensed and insured Estimates provided before work begins Major credit cards accepted. 100% financing with approved credit Residential and Commercial

"Fast, friend and professional. Did a great job."

Jason B on February 2025


Avatar for Medlin's Plumbing
Medlin's Plumbing
3333 IREDELL HGTS RD
4.78(
45
)
Approved Pro
Medlin's Plumbing
3333 IREDELL HGTS RD
4.78(
45
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
196 local quotes requested

Thank you for looking at my profile. I do not do tankless. I am a expert in replacing water heaters. I have over 40 years of plumbing experience. Please Google Medlins plumbing out of Iron station NC. Look under HomeAdvisor and you will see a extended reviews of my business. I'm the lowest price in (Charlotte, Huntersville, Cornelius Gastonia) on water heater replacement. Thank you 704-678-7703 . I do not do tankless!!

"David Medlin, of Medlin's Plumbing, did an extraordinary job in replacing my water heater. He is honest, fair, and thorough. I cannot recommend him highly enough! He is excellent and a true professional!"

Bert T on April 2025

Thank you for looking at my profile. I do not do tankless. I am a expert in replacing water heaters. I have over 40 years of plumbing experience. Please Google Medlins plumbing out of Iron station NC. Look under HomeAdvisor and you will see a extended reviews of my business. I'm the lowest price in (Charlotte, Huntersville, Cornelius Gastonia) on water heater replacement. Thank you 704-678-7703 . I do not do tankless!!

"David Medlin, of Medlin's Plumbing, did an extraordinary job in replacing my water heater. He is honest, fair, and thorough. I cannot recommend him highly enough! He is excellent and a true professional!"

Bert T on April 2025


Avatar for T & F Plumbing
T & F Plumbing
7917 Meadowdale Ln
5.00(
33
)
Approved Pro
T & F Plumbing
7917 Meadowdale Ln
5.00(
33
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
347 local quotes requested

We service Water Heaters to drain repair and everything else in between in ur plumbing systems. We are affordable, trustworthy and give each customer a personal experience that will keep them calling us for all there plumbing needs.

"Tim and Frank provided outstanding service. They expertly repaired my "ancient" gas fireplace and got it working perfectly. They responded quickly, scheduled the appointment promptly, and had everything up and running within 24 hours of my initial request. Truly exceptional work!"

David R on November 2024

We service Water Heaters to drain repair and everything else in between in ur plumbing systems. We are affordable, trustworthy and give each customer a personal experience that will keep them calling us for all there plumbing needs.

"Tim and Frank provided outstanding service. They expertly repaired my "ancient" gas fireplace and got it working perfectly. They responded quickly, scheduled the appointment promptly, and had everything up and running within 24 hours of my initial request. Truly exceptional work!"

David R on November 2024


Avatar for MyNewFloor.com
MyNewFloor.com
1820 Westinghouse Blvd Ste L
4.42(
334
)
Approved Pro
MyNewFloor.com
1820 Westinghouse Blvd Ste L
4.42(
334
)
Approved Pro
Customers say: Terrific value
1250 local quotes requested
20 years of experience

A premier flooring company in the Carolinas, MyNewFloor.com was founded by a talented, design savvy professional with 15 years of experience in designing and installing a variety of flooring products. Our company is built on the principles of honesty, quality, craftsmanship, and a sincere effort to provide 100% customer satisfaction! You can be sure that only our professional, knowledgeable and experienced installers will complete all the work for you. We do not sub-contract any of our projects.

"LVP looks great and tile in the kitchen look great but the trim and baseboards were not finished and I had to have another contractor come in and install them. The stairwell was sanded and stained and I was told they could match the stain for the stairs to the LVP and that wasn’t true either. The stairs came out pink. Now I’m having another contractor come in and fix. I would not recommend to a friend."

Diana V on January 2025

A premier flooring company in the Carolinas, MyNewFloor.com was founded by a talented, design savvy professional with 15 years of experience in designing and installing a variety of flooring products. Our company is built on the principles of honesty, quality, craftsmanship, and a sincere effort to provide 100% customer satisfaction! You can be sure that only our professional, knowledgeable and experienced installers will complete all the work for you. We do not sub-contract any of our projects.

"LVP looks great and tile in the kitchen look great but the trim and baseboards were not finished and I had to have another contractor come in and install them. The stairwell was sanded and stained and I was told they could match the stain for the stairs to the LVP and that wasn’t true either. The stairs came out pink. Now I’m having another contractor come in and fix. I would not recommend to a friend."

Diana V on January 2025


Dryer Doctor
Based In
4.74(
39
)
Approved Pro
Dryer Doctor
Based In
4.74(
39
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
314 local quotes requested

We have the experience and dedication to get the job done right! Specializing in appliance repair services; We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!

"He came and found the problem fixed it he was very professional he knew his job thank you"

Ada S on April 2025

We have the experience and dedication to get the job done right! Specializing in appliance repair services; We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!

"He came and found the problem fixed it he was very professional he knew his job thank you"

Ada S on April 2025

...
Showing 1-10 of 949

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.
outdoor water lines with backflow preventer
Apr 21, 2025
Apr 21, 2025
Backflow preventer costs depend on type, size, location, and labor costs. This guide breaks down the cost factors to help you budget.
plumber cleaning a home sewer line in yard
Apr 22, 2025
Apr 22, 2025
Budget for main sewer line clog repair costs based on factors such as cleaning method, sewer age, project complexity, permits, labor, and more.
water faucet on exterior of brick house
Apr 22, 2025
Apr 22, 2025
Budget for the cost to replace a hose bib based on factors such as faucet type, location, plumbing line installation, permits, labor, and more.
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.
Share project details to get started.