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 South Salem

Avatar for E and R Mechanical
E and R Mechanical
410 W River St
4.73(
237
)
Approved Pro
E and R Mechanical
410 W River St
4.73(
237
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
88 local quotes requested

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects, no matter how big, or small. We are experts in our trade, and will always keep you educated on your particular task or project. We look forward to earning your business.

"Customer service was excellent. Arrived on time and completed the job in a timely manner at the quoted cost."

Barbara T on April 2025

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects, no matter how big, or small. We are experts in our trade, and will always keep you educated on your particular task or project. We look forward to earning your business.

"Customer service was excellent. Arrived on time and completed the job in a timely manner at the quoted cost."

Barbara T on April 2025


Fast & Serious Pipe Repair Drain Cleaning
926 Neall Ave
5.00(
6
)
Approved Pro
Fast & Serious Pipe Repair Drain Cleaning
926 Neall Ave
5.00(
6
)
Approved Pro
Customers say: Quick response
4 years of experience
Free onsite estimate

Fast & Serious Pipe Repair Drain Cleaning is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Professional and quick "

James S on May 2025

Fast & Serious Pipe Repair Drain Cleaning is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Professional and quick "

James S on May 2025


Avatar for In Town Plumbing and Heating, Corp.
In Town Plumbing and Heating, Corp.
850 Franklin Avenue
4.96(
27
)
Approved Pro
In Town Plumbing and Heating, Corp.
850 Franklin Avenue
4.96(
27
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
35 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

"Guy and his team are fantastic and such a pleasure to work with. We've been going through a complicated generator install and Guy has truly been an amazing partner to work with to get the project done as fast as possible. He's also helped with alot of general plumbing needs in the house and is always very responsive. Highly recommend!"

Jonathan M on September 2024

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

"Guy and his team are fantastic and such a pleasure to work with. We've been going through a complicated generator install and Guy has truly been an amazing partner to work with to get the project done as fast as possible. He's also helped with alot of general plumbing needs in the house and is always very responsive. Highly recommend!"

Jonathan M on September 2024


Avatar for Main Street Home & Garden Company, Inc.
Main Street Home & Garden Company, Inc.
26 Broadway
4.00(
18
)
Approved Pro
Main Street Home & Garden Company, Inc.
26 Broadway
4.00(
18
)
Approved Pro
Customers say: True professional
13 years of experience
Free onsite estimate

Main Street Home & Garden, a multi-division, commercial and residential company that services nearly all aspects of construction and property maintenance. Our multi-division business model, means that we can provide more services in a streamlined manor, saving you both time and money. Call today to get in touch with our staff and to learn more about what we have to offer.

"They are primarily gardeners but attempt to take on handyman work, including home remodeling. They lack the necessary skill and diligence. make matters worse, they demonstrated a complete lack of integrity, causing delays of over six months. Their work failed plumbing, electrical, and alarm system inspections, and there are more than three serious building code violations. I need to terminate this company and hire another to rectify their mistakes. In the end, they placed a mechanic's lien on my property and claimed the full contract amount."

John S on October 2024

Main Street Home & Garden, a multi-division, commercial and residential company that services nearly all aspects of construction and property maintenance. Our multi-division business model, means that we can provide more services in a streamlined manor, saving you both time and money. Call today to get in touch with our staff and to learn more about what we have to offer.

"They are primarily gardeners but attempt to take on handyman work, including home remodeling. They lack the necessary skill and diligence. make matters worse, they demonstrated a complete lack of integrity, causing delays of over six months. Their work failed plumbing, electrical, and alarm system inspections, and there are more than three serious building code violations. I need to terminate this company and hire another to rectify their mistakes. In the end, they placed a mechanic's lien on my property and claimed the full contract amount."

John S on October 2024


Avatar for Westbrook Contracting, LLC
Westbrook Contracting, LLC
110 Washington Ave
4.96(
83
)
Approved Pro
Westbrook Contracting, LLC
110 Washington Ave
4.96(
83
)
Approved Pro
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
264 local quotes requested

Westbrook Contracting LLC offers the highest level of professionalism and quality renovations Westchester County. We strive to meet our residential and commercial clients’ individual needs and do not cut corners. Dave, the owner, is on the jobsite from the first consultation through the close of the project to ensure his high standards. Thank you for considering Westbrook Contracting LLC and we look forward to impressing you!

"We hired Dave last year for a major remodeling project and were incredibly pleased with the result. His approach of bringing on his crew to review the plans on site led to a very accurate estimate which minimized surprises. When we started out he said he'd have people working on site 5-6 days a week and that was absolutely true - work was constantly progressing and he was in constant communication with us each week to lay out the plan and what to expect. Every day we love our new home more!"

Scott D on April 2024

Westbrook Contracting LLC offers the highest level of professionalism and quality renovations Westchester County. We strive to meet our residential and commercial clients’ individual needs and do not cut corners. Dave, the owner, is on the jobsite from the first consultation through the close of the project to ensure his high standards. Thank you for considering Westbrook Contracting LLC and we look forward to impressing you!

"We hired Dave last year for a major remodeling project and were incredibly pleased with the result. His approach of bringing on his crew to review the plans on site led to a very accurate estimate which minimized surprises. When we started out he said he'd have people working on site 5-6 days a week and that was absolutely true - work was constantly progressing and he was in constant communication with us each week to lay out the plan and what to expect. Every day we love our new home more!"

Scott D on April 2024


Avatar for Hire Her Home Improvement Inc.
Hire Her Home Improvement Inc.
PO Box 742
4.68(
307
)
Approved Pro
Hire Her Home Improvement Inc.
PO Box 742
4.68(
307
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
533 local quotes requested

Hire Her Inc, proud winner of the Super Service Award 14 years in a row, specializes in home remodel & renovations. As a female-owned and owner-operated company we bring passion, commitment and dedication to each home improvement, remodel and renovation we take on. We offer a variety of services from kitchen remodel & renovation, bathroom remodel & renovation, and basement remodel & renovation to painting and flooring services. Contact us about a specific service if you are unsure. Owner operated. Rarely uses subs. Cost is determined by the job. No travel charges. For the fastest response, please email me at hirehernow@optonline.net

"Hire Her crew did a great job recently on renovating two bathrooms for us, including a small primary bath with shower and a larger hallway bath with tub. Work was completed to our full satisfaction and the guys were great to work with - kept us in the loop and were as efficient as possible. Also replaced a bunch of doors and trim throughout the house. They have done basically all the major renovation work on our house and we have always been pleased with their work."

Alex V on April 2025

Hire Her Inc, proud winner of the Super Service Award 14 years in a row, specializes in home remodel & renovations. As a female-owned and owner-operated company we bring passion, commitment and dedication to each home improvement, remodel and renovation we take on. We offer a variety of services from kitchen remodel & renovation, bathroom remodel & renovation, and basement remodel & renovation to painting and flooring services. Contact us about a specific service if you are unsure. Owner operated. Rarely uses subs. Cost is determined by the job. No travel charges. For the fastest response, please email me at hirehernow@optonline.net

"Hire Her crew did a great job recently on renovating two bathrooms for us, including a small primary bath with shower and a larger hallway bath with tub. Work was completed to our full satisfaction and the guys were great to work with - kept us in the loop and were as efficient as possible. Also replaced a bunch of doors and trim throughout the house. They have done basically all the major renovation work on our house and we have always been pleased with their work."

Alex V on April 2025


Avatar for Russell B Bleakley Plumbing & Heating Inc
Russell B Bleakley Plumbing & Heating Inc
441 US-202
4.76(
162
)
Approved Pro
Russell B Bleakley Plumbing & Heating Inc
441 US-202
4.76(
162
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
109 local quotes requested

Serving Commercial Businesses & Residential customers for All types of routine Plumbing & Heating Services & Repairs. We also specialize in Renovation/Remodeling work, Lt. Commercial Construction, Boilers, Hot Water Heaters, all TYPES of Well Water Pumps, Water Treatment- Filtration/Purification/Softening, ALL Gas piping as well as "OQ GAS Certified" for ALL Con Edison Customers in Westchester County, NY. Proud winner of maintaining decades of Angies List "Super Service Awards." We give VALUE to each customer and guarantee our workmanship for 1 YEAR! Our company offers our community Loyal, Dependable, Expert Services & Licensed professionals with our "UP-FRONT" PRICING. We offer our Senior Citizens & Veterans a 5% DISCOUNT on service & repair work. We offer a FREE WATER SAMPLE to test your water with any Service Call Visit. We OFFER FREE ESTIMATES on major installs, renovations, & new construction. If you have a Plumbing, Heating, or Water problem... Our Motto is: "DON'T FUSS...CALL RUSS... and leave the problem to US!" Emergency Service Available. CALL 914-276-3756

"I had already an idea of what needed to be done and repaired. Anthony just came and got the work done. Reduced price as much as he could with efficient work. Will call again for emergencies"

Carolyn T on January 2025

Serving Commercial Businesses & Residential customers for All types of routine Plumbing & Heating Services & Repairs. We also specialize in Renovation/Remodeling work, Lt. Commercial Construction, Boilers, Hot Water Heaters, all TYPES of Well Water Pumps, Water Treatment- Filtration/Purification/Softening, ALL Gas piping as well as "OQ GAS Certified" for ALL Con Edison Customers in Westchester County, NY. Proud winner of maintaining decades of Angies List "Super Service Awards." We give VALUE to each customer and guarantee our workmanship for 1 YEAR! Our company offers our community Loyal, Dependable, Expert Services & Licensed professionals with our "UP-FRONT" PRICING. We offer our Senior Citizens & Veterans a 5% DISCOUNT on service & repair work. We offer a FREE WATER SAMPLE to test your water with any Service Call Visit. We OFFER FREE ESTIMATES on major installs, renovations, & new construction. If you have a Plumbing, Heating, or Water problem... Our Motto is: "DON'T FUSS...CALL RUSS... and leave the problem to US!" Emergency Service Available. CALL 914-276-3756

"I had already an idea of what needed to be done and repaired. Anthony just came and got the work done. Reduced price as much as he could with efficient work. Will call again for emergencies"

Carolyn T on January 2025


Avatar for Southeast Plumbing & Heating
Southeast Plumbing & Heating
PO BOX 110
4.88(
25
)
Approved Pro
Southeast Plumbing & Heating
PO BOX 110
4.88(
25
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
245 local quotes requested

Southeast Plumbing and Heating is the areas #1 family owned plumbing and heating service since 1967. We pride ourselves on honesty, integrity, and affordable prices. Our team of professionals are ready to assist 24/7. No extra charge for holidays and weekends. Call us for a free estimate today! 845-821-4012

"First to reach out and help over the phone! Thanks Joe!"

Jodi W on January 2025

Southeast Plumbing and Heating is the areas #1 family owned plumbing and heating service since 1967. We pride ourselves on honesty, integrity, and affordable prices. Our team of professionals are ready to assist 24/7. No extra charge for holidays and weekends. Call us for a free estimate today! 845-821-4012

"First to reach out and help over the phone! Thanks Joe!"

Jodi W on January 2025


Westchester Premier Builders, Inc.
3.91(
11
)
Approved Pro
Westchester Premier Builders, Inc.
3.91(
11
)
Approved Pro
255 local quotes requested
40 years of experience

Whether you're looking to add space to your home with an addition, to give your kitchen a new look or completely overhaul your bathroom, our talented contractors can back you up. Westchester Premier Builders, Inc, is a locally owned and operated business with over 25 years of experience. We will provide you with excellent workmanship and reasonable pricing. Call now!

Whether you're looking to add space to your home with an addition, to give your kitchen a new look or completely overhaul your bathroom, our talented contractors can back you up. Westchester Premier Builders, Inc, is a locally owned and operated business with over 25 years of experience. We will provide you with excellent workmanship and reasonable pricing. Call now!


Fine Construction Services
5.00(
7
)
Approved Pro
Fine Construction Services
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
641 local quotes requested

Finding the right NYC residential renovation contractor can be a difficult and stressful undertaking. We at Fine Construction simplify the process of renovation, clarifying condominium and cooperative requirements, obtaining city permits as needed, and ensuring the construction is carried out in a clean and environmentally friendly manner. We work with top subcontractors and designers to coordinate all phases of the construction process—ensuring your vision becomes reality. Visit us at www.finecs.nyc to view more of what we can do to make your dreams a reality.

"I highly recommend Fine Construction Services. Ciaran and his team are detail oriented and a pleasure to work with. I look forward to working together again!"

Jonathan P on February 2021

Finding the right NYC residential renovation contractor can be a difficult and stressful undertaking. We at Fine Construction simplify the process of renovation, clarifying condominium and cooperative requirements, obtaining city permits as needed, and ensuring the construction is carried out in a clean and environmentally friendly manner. We work with top subcontractors and designers to coordinate all phases of the construction process—ensuring your vision becomes reality. Visit us at www.finecs.nyc to view more of what we can do to make your dreams a reality.

"I highly recommend Fine Construction Services. Ciaran and his team are detail oriented and a pleasure to work with. I look forward to working together again!"

Jonathan P on February 2021

...
Showing 1-10 of 945

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.