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 Princeton Junction

Avatar for Garden State Water Heaters
Garden State Water Heaters
15 Shipman Place
4.64(
424
)
Approved Pro
Garden State Water Heaters
15 Shipman Place
4.64(
424
)
Approved Pro
Super Service Award
Customers say: Super punctual
180 local quotes requested
7 years of experience

Our experience is serving our customers with 100% satisfaction on every project we take on. We will give you the peace of mind you need and deserve. Garden State Water Heaters, happily services the community with integrity, professionalism, and competitive pricing. We are fully licensed and insured, and have built a reputation for quality work with each satisfied customer. Thank you for the opportunity to introduce you to our company.

"They came within two hours of me calling them. We had a slight issue getting to the water heater, but they cut the wall really well to get to it, didn’t leave a mess at all, and put the beams back up. Great work at a really good price."

Thomas A on May 2025

Our experience is serving our customers with 100% satisfaction on every project we take on. We will give you the peace of mind you need and deserve. Garden State Water Heaters, happily services the community with integrity, professionalism, and competitive pricing. We are fully licensed and insured, and have built a reputation for quality work with each satisfied customer. Thank you for the opportunity to introduce you to our company.

"They came within two hours of me calling them. We had a slight issue getting to the water heater, but they cut the wall really well to get to it, didn’t leave a mess at all, and put the beams back up. Great work at a really good price."

Thomas A on May 2025


Princeton Air Conditioning
39 Everett Drive
4.75(
2
)
Approved Pro
Princeton Air Conditioning
39 Everett Drive
4.75(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
47 local quotes requested

Since its founding in 1971, Princeton Air has operated by the same simple belief: Provide nothing but the best products & services at a fair market value; and 49 Years later, Princeton Air has become the area?s Premier comfort provider, attending to the needs of our region?s most discerning clientele. You can trust our team of experienced, certified representatives & technicians to provide efficient, timely service, offering nothing but the best equipment available today. For all of your home or business's Heating, Cooling, Hot Water & Plumbing, Indoor Air Quality, Backup Power, Insulation & Air Sealing needs and so much more, Princeton Air's goal is simply to be your one-stop comfort provider and if you haven't yet given us the chance to prove to you what makes Princeton Air different, you are hereby officially invited to experience the difference for yourself! With COVID-19, your safety and well being is our #1 priority. For our protocol, visit: www.tinyurl.com/qv6sp28.

"Excellent service"

Pradeep P on February 2020

Since its founding in 1971, Princeton Air has operated by the same simple belief: Provide nothing but the best products & services at a fair market value; and 49 Years later, Princeton Air has become the area?s Premier comfort provider, attending to the needs of our region?s most discerning clientele. You can trust our team of experienced, certified representatives & technicians to provide efficient, timely service, offering nothing but the best equipment available today. For all of your home or business's Heating, Cooling, Hot Water & Plumbing, Indoor Air Quality, Backup Power, Insulation & Air Sealing needs and so much more, Princeton Air's goal is simply to be your one-stop comfort provider and if you haven't yet given us the chance to prove to you what makes Princeton Air different, you are hereby officially invited to experience the difference for yourself! With COVID-19, your safety and well being is our #1 priority. For our protocol, visit: www.tinyurl.com/qv6sp28.

"Excellent service"

Pradeep P on February 2020


Avatar for Len The Plumber, LLC.
Len The Plumber, LLC.
2091 SPRINGDALE RD
4.50(
2
)
Approved Pro
Len The Plumber, LLC.
2091 SPRINGDALE RD
4.50(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
902 local quotes requested

Len The Plumber, LLC. is a leading plumbing and drain company serving New Jersey. Our certified professional plumbers are available same day to assist residential customers in Burlington County and Camden County. Our knowledgeable plumbers have years of experience dealing with a wide variety of plumbing issues including plumbing repairs, drain cleaning, water heaters, well systems, heating systems, sewer, water, and gas lines. We’re open 7 days a week with no extra charge on evenings or weekends!

"Used Len the Plumber in Cherry Hill for the first time. Called at 8 a.m. and they had someone out within a couple of hours. Pricing was up front, so no surprises. The tech - Sonny - was great! He answered all of my questions and had the toilet repaired in under an hour. I was concerned that the 30-year-old toilet would need to be replaced but, thankfully, Sonny determined that the toilet was in good working condition. I appreciated the honesty! I would have given 5 stars but pricing seemed high - almost $400 to replace a $20 part."

Kathleen D on October 2024

Len The Plumber, LLC. is a leading plumbing and drain company serving New Jersey. Our certified professional plumbers are available same day to assist residential customers in Burlington County and Camden County. Our knowledgeable plumbers have years of experience dealing with a wide variety of plumbing issues including plumbing repairs, drain cleaning, water heaters, well systems, heating systems, sewer, water, and gas lines. We’re open 7 days a week with no extra charge on evenings or weekends!

"Used Len the Plumber in Cherry Hill for the first time. Called at 8 a.m. and they had someone out within a couple of hours. Pricing was up front, so no surprises. The tech - Sonny - was great! He answered all of my questions and had the toilet repaired in under an hour. I was concerned that the 30-year-old toilet would need to be replaced but, thankfully, Sonny determined that the toilet was in good working condition. I appreciated the honesty! I would have given 5 stars but pricing seemed high - almost $400 to replace a $20 part."

Kathleen D on October 2024


Avatar for Aqua Joe Plumbing & Drains LLC
Aqua Joe Plumbing & Drains LLC
Based In
4.91(
33
)
Approved Pro
Aqua Joe Plumbing & Drains LLC
Based In
4.91(
33
)
Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
1188 local quotes requested

Aqua Joe Plumbing & Drains, LLC is a trusted provider of top-notch plumbing services in South Jersey. Serving Atlantic, Burlington, Camden, Gloucester and Mercer Counties, this locally owned and operated company has built a solid reputation for delivering reliable and affordable solutions.

"It was ok. Rough inspection was passed."

Canetti H on December 2024

Aqua Joe Plumbing & Drains, LLC is a trusted provider of top-notch plumbing services in South Jersey. Serving Atlantic, Burlington, Camden, Gloucester and Mercer Counties, this locally owned and operated company has built a solid reputation for delivering reliable and affordable solutions.

"It was ok. Rough inspection was passed."

Canetti H on December 2024


Avatar for KP Plumbing
KP Plumbing
Hillside Avenue
5.00(
11
)
Approved Pro
KP Plumbing
Hillside Avenue
5.00(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
862 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. With 7+ years of industry experience, 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.

"KP Plumbing was very efficient and fast service. The technicians were very knowledgeable and pleasant. I highly recommend KP Plumbing for all your plumbing needs! Thank you Kyle"

Dwayne C on December 2023

We're dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. With 7+ years of industry experience, 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.

"KP Plumbing was very efficient and fast service. The technicians were very knowledgeable and pleasant. I highly recommend KP Plumbing for all your plumbing needs! Thank you Kyle"

Dwayne C on December 2023


Avatar for Flow Pros
Flow Pros
57 Herbert Dr
5.00(
7
)
Approved Pro
Flow Pros
57 Herbert Dr
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
177 local quotes requested

Flow Pros is your trusted partner for all plumbing and HVAC needs in the heart of New Jersey. With over a decade of experience, our licensed technicians specialize in providing top-notch installation, repair, and maintenance services for both residential and commercial properties. From fixing leaky faucets to installing state-of-the-art heating and cooling systems, we pride ourselves on delivering prompt, reliable, and affordable solutions to our valued customers. Committed to excellence and customer satisfaction, we prioritize transparent communication and ensure that every job is completed to the highest industry standards. Trust Flow Pros to keep your home or business running smoothly all year round.

"Chris was professional and on time. explained everything in details, service done and the problem solved. We are happy and definitely will recommend and hire again if needed."

Hany W on November 2024

Flow Pros is your trusted partner for all plumbing and HVAC needs in the heart of New Jersey. With over a decade of experience, our licensed technicians specialize in providing top-notch installation, repair, and maintenance services for both residential and commercial properties. From fixing leaky faucets to installing state-of-the-art heating and cooling systems, we pride ourselves on delivering prompt, reliable, and affordable solutions to our valued customers. Committed to excellence and customer satisfaction, we prioritize transparent communication and ensure that every job is completed to the highest industry standards. Trust Flow Pros to keep your home or business running smoothly all year round.

"Chris was professional and on time. explained everything in details, service done and the problem solved. We are happy and definitely will recommend and hire again if needed."

Hany W on November 2024


Avatar for The Homemasters Inc
The Homemasters Inc
257 Deans Rhode Hall Rd
4.85(
40
)
Approved Pro
The Homemasters Inc
257 Deans Rhode Hall Rd
4.85(
40
)
Approved Pro
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
1143 local quotes requested

The Homemasters, Inc. is led by bi-lingual (Spanish) owner and lead carpenter, Carlos Dominguez. The business has been family owned and operated since 1991. We are a 3-year Super Service Award Winner! Although we specialize in kitchens, we have extensive experience in a wide range of other remodeling services. We can assist our clients through all stages of their remodel, from initial ideas through final completion.We can also assist our clients by recommending and dealing with our professional colleagues and vendors at no additional cost or mark-up fees. With over 25+ years in the business, Carlos and his staff, takes great pride in their work. Carlos is the lead carpenter on all jobs and will be dealing directly with his clients at all times. Our quality and professionalism is unmatched and client satisfaction is our number one goal!

"Carlos Dominguez shows no respect to his customer. It is unprofessional - and totally unacceptable - to not answer my emails, telephone calls, text messages. He walked away from my kitchen remodeling project after my email, where I expressed unhappiness with the quality of work, expecting more from someone who has 95% five-star rating. In three and a half days of work there were multiple mistakes in plumbing: including selecting the wrong PVC fittings, not installing the roof vent flashing properly, and drilling oversized holes in the studs violating the building code. Similarly - ignoring the manufacturer's installation manual - he shows up with the wrong duct size for the kitchen exhaust. It must be embarrassing to face criticism from a homeowner, who seems to know more, or care more about things getting done right. His answer: sending a check back without any word, claiming full credit for unfinished, uninspected work. No discussion. Is client satisfaction is the number one goal?"

Peter M on October 2024

The Homemasters, Inc. is led by bi-lingual (Spanish) owner and lead carpenter, Carlos Dominguez. The business has been family owned and operated since 1991. We are a 3-year Super Service Award Winner! Although we specialize in kitchens, we have extensive experience in a wide range of other remodeling services. We can assist our clients through all stages of their remodel, from initial ideas through final completion.We can also assist our clients by recommending and dealing with our professional colleagues and vendors at no additional cost or mark-up fees. With over 25+ years in the business, Carlos and his staff, takes great pride in their work. Carlos is the lead carpenter on all jobs and will be dealing directly with his clients at all times. Our quality and professionalism is unmatched and client satisfaction is our number one goal!

"Carlos Dominguez shows no respect to his customer. It is unprofessional - and totally unacceptable - to not answer my emails, telephone calls, text messages. He walked away from my kitchen remodeling project after my email, where I expressed unhappiness with the quality of work, expecting more from someone who has 95% five-star rating. In three and a half days of work there were multiple mistakes in plumbing: including selecting the wrong PVC fittings, not installing the roof vent flashing properly, and drilling oversized holes in the studs violating the building code. Similarly - ignoring the manufacturer's installation manual - he shows up with the wrong duct size for the kitchen exhaust. It must be embarrassing to face criticism from a homeowner, who seems to know more, or care more about things getting done right. His answer: sending a check back without any word, claiming full credit for unfinished, uninspected work. No discussion. Is client satisfaction is the number one goal?"

Peter M on October 2024


Avatar for TACURIS Installation LLC
TACURIS Installation LLC
123 Main St.
5.00(
1
)
Approved Pro
TACURIS Installation LLC
123 Main St.
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
374 local quotes requested

We specialize in all phases of remodeling for your home or business. We pride ourselves on the quality work we provide, while delivering great customer service. Please see the services we offer below and call -or- click to schedule an estimate today!

"The owner, Luis, was very accommodating and professional. He was on time and worked throughout the day. His team made sure to clean up every area that they were working in. Before all work was completed, they would ask me to go over and look for anything to make sure I was fully satisfied. I will be using them again"

Adree z on December 2024

We specialize in all phases of remodeling for your home or business. We pride ourselves on the quality work we provide, while delivering great customer service. Please see the services we offer below and call -or- click to schedule an estimate today!

"The owner, Luis, was very accommodating and professional. He was on time and worked throughout the day. His team made sure to clean up every area that they were working in. Before all work was completed, they would ask me to go over and look for anything to make sure I was fully satisfied. I will be using them again"

Adree z on December 2024


Avatar for Gold Medal Service
Gold Medal Service
20 Booker St
4.44(
487
)
Approved Pro
Gold Medal Service
20 Booker St
4.44(
487
)
Approved Pro
Customers say: Super punctual
1668 local quotes requested
49 years of experience

Plumbing, HVAC, and electrical systems make your house livable. One minor issue with any of these systems can put your home at a standstill. In case you find yourself in this unfortunate situation, know that you can count on Gold Medal Service. For over 24 years, our company has been taking care of the homes of New Jersey residents through our top quality plumbing, HVAC, and electrical services. We are available 24 hours a day, 7 days a week to address even the most mind-boggling issues of your in-home equipment. From repairs, installations, and upgrades, our technicians are known for getting the job done right every time. We also provide upfront pricing with a full description of the service before commencing work to avoid any surprises down the line.

"If I could, I would give this horrible service provider a 0.0! I scheduled a plumbing appointment on a call, which was confirmed via multiple texts the day prior to the appt. Then had an employee go to the location during the 4 hour window they specified and wait for the plumber. On the day of the appt, 1 hour into the time window someone calls and says, sorry we’re not going to go because we only do residential plumbing. This was a surprise, as it was communicated to them that this was a business when I had set up the appt. So, I decided to speak with a manager. After spending over an hour of being bounced around from one dept to another, asking for a manager, they never connected me to one and their dispatcher had the audacity to say “sorry for your inconvenience, but you’ll just have to find someone else.” WOW! The hoops they make you jump through and the rudeness is not worth the hassle. I would definitely recommend you find a different plumbing pro for your project!"

Mark K on March 2024

Plumbing, HVAC, and electrical systems make your house livable. One minor issue with any of these systems can put your home at a standstill. In case you find yourself in this unfortunate situation, know that you can count on Gold Medal Service. For over 24 years, our company has been taking care of the homes of New Jersey residents through our top quality plumbing, HVAC, and electrical services. We are available 24 hours a day, 7 days a week to address even the most mind-boggling issues of your in-home equipment. From repairs, installations, and upgrades, our technicians are known for getting the job done right every time. We also provide upfront pricing with a full description of the service before commencing work to avoid any surprises down the line.

"If I could, I would give this horrible service provider a 0.0! I scheduled a plumbing appointment on a call, which was confirmed via multiple texts the day prior to the appt. Then had an employee go to the location during the 4 hour window they specified and wait for the plumber. On the day of the appt, 1 hour into the time window someone calls and says, sorry we’re not going to go because we only do residential plumbing. This was a surprise, as it was communicated to them that this was a business when I had set up the appt. So, I decided to speak with a manager. After spending over an hour of being bounced around from one dept to another, asking for a manager, they never connected me to one and their dispatcher had the audacity to say “sorry for your inconvenience, but you’ll just have to find someone else.” WOW! The hoops they make you jump through and the rudeness is not worth the hassle. I would definitely recommend you find a different plumbing pro for your project!"

Mark K on March 2024


Avatar for DRAIN KING
DRAIN KING
412 RIDGE RD
4.80(
105
)
Approved Pro
DRAIN KING
412 RIDGE RD
4.80(
105
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
160 local quotes requested

We at Drain King, Inc. have been serving the home owners of New Jersey since 1997 with quality drain cleaning and fixture replacement services. As a Family owned and operated business, customer service and satisfaction has always been our number one priority. Our Moto has been "we clean your drains, not your wallet".

"I was recommended by a friend to use Drain King. Chuck and his son did a fantastic job on my elderly mother’s home in North Brunswick. She experienced major plumbing issues over the last few months and was having a difficult time finding a trust-worthy plumber. Chuck was friendly, honest, professional and took the time to answer all of our questions and concerns. Turns out, her outside sewer pipe needed to be replaced. Chuck and his team showed up promptly at 8 am and the entire job was completed before 1 pm. His pricing was extremely reasonable and he did an excellent job. I would highly recommend Drain King in Dayton."

Tara R on April 2024

We at Drain King, Inc. have been serving the home owners of New Jersey since 1997 with quality drain cleaning and fixture replacement services. As a Family owned and operated business, customer service and satisfaction has always been our number one priority. Our Moto has been "we clean your drains, not your wallet".

"I was recommended by a friend to use Drain King. Chuck and his son did a fantastic job on my elderly mother’s home in North Brunswick. She experienced major plumbing issues over the last few months and was having a difficult time finding a trust-worthy plumber. Chuck was friendly, honest, professional and took the time to answer all of our questions and concerns. Turns out, her outside sewer pipe needed to be replaced. Chuck and his team showed up promptly at 8 am and the entire job was completed before 1 pm. His pricing was extremely reasonable and he did an excellent job. I would highly recommend Drain King in Dayton."

Tara R on April 2024

...
Showing 1-10 of 946

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.