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 Horizon Services, Inc.
Horizon Services, Inc.
17 Roland Ave
4.75(
10
)
Approved Pro
Horizon Services, Inc.
17 Roland Ave
4.75(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
36 years of experience

Experience The Horizon Difference. On-Time Service. Up-Front Pricing. And The Job Done Right and Clean the First Time. GUARANTEED! Horizon Services is the regions largest and most well respected plumbing, heating and air conditioning company, with nearly 600 employees serving tens of thousands of homeowners throughout Delaware, Southeastern Pennsylvania, Southern New Jersey, and Northeastern Maryland. After a quarter of a century in business, Horizons Services remains fully committed to setting the industry standard for customer service, installation, and focusing on things that are important to busy homeowners: respect for their time, their home and their property; up-front pricing, and an unconditional 100% money back guarantee.

"A"

Michael G on September 2023

Experience The Horizon Difference. On-Time Service. Up-Front Pricing. And The Job Done Right and Clean the First Time. GUARANTEED! Horizon Services is the regions largest and most well respected plumbing, heating and air conditioning company, with nearly 600 employees serving tens of thousands of homeowners throughout Delaware, Southeastern Pennsylvania, Southern New Jersey, and Northeastern Maryland. After a quarter of a century in business, Horizons Services remains fully committed to setting the industry standard for customer service, installation, and focusing on things that are important to busy homeowners: respect for their time, their home and their property; up-front pricing, and an unconditional 100% money back guarantee.

"A"

Michael G on September 2023


Avatar for Gold Medal Service, LLC
Gold Medal Service, LLC
45 Park Rd.
4.04(
124
)
Approved Pro
Gold Medal Service, LLC
45 Park Rd.
4.04(
124
)
Approved Pro
Customers say: Quick response
47 years of experience
Free onsite estimate

Gold Medal Plumbing, Inc., warrants and guarantees to the original purchaser, that should Customer accept and purchase Gold Medal’s recommended repair, such repair shall be free from defect in materials and workmanship under normal use and conditions for as long as the Customer owns the residence in which the recommended repair was provided or until the Unit in which the covered repair was performed, if applicable, is replaced.

"This company is great. They responded immediately. Their technicians work hard. Team arrived early and completed a whole new AC install in one day. They are experienced, knowledgeable and courteous. They know their job well and cleaned up everything afterwards. I would hire them again without hesitation."

Edwin R on July 2023

Gold Medal Plumbing, Inc., warrants and guarantees to the original purchaser, that should Customer accept and purchase Gold Medal’s recommended repair, such repair shall be free from defect in materials and workmanship under normal use and conditions for as long as the Customer owns the residence in which the recommended repair was provided or until the Unit in which the covered repair was performed, if applicable, is replaced.

"This company is great. They responded immediately. Their technicians work hard. Team arrived early and completed a whole new AC install in one day. They are experienced, knowledgeable and courteous. They know their job well and cleaned up everything afterwards. I would hire them again without hesitation."

Edwin R on July 2023


Avatar for Hutchinson Plumbing Heating Cooling, LLC
Hutchinson Plumbing Heating Cooling, LLC
621 Chapel Ave
4.26(
82
)
Approved Pro
Hutchinson Plumbing Heating Cooling, LLC
621 Chapel Ave
4.26(
82
)
Approved Pro
Customers say: Quick response
28 local quotes requested
77 years of experience

If it is 2 am and your air conditioner just broke, then Hutchinson is here to help. Our company has trained Customer Service Representatives waiting to take your call, with technicians ready to fix your air conditioner 24/7. Whether you are in Gloucester County NJ or Delaware County PA, our fully-stocked repair vehicles contain all of the parts we need to get you cool again; TODAY!

"well there were delays but i forgive that. they did NOT get permits. a new hot water heater was brought and hooked up. But connections were loose and made it inoperable! its taken another plumber and an Electrician to fix what was wrong to actually get hot water. the original cost was $2500. Now add the $500 for 2nd plumber to reinstall the emergency shut off box that was installed improperly. AND an Electrician for $800 To fix the rest. They have not responded to email requesting attention. Technician was great - altho did not know everything necessary to complete my job. this has been a two week nightmare! i am NOT happy!"

Rian M on June 2024

If it is 2 am and your air conditioner just broke, then Hutchinson is here to help. Our company has trained Customer Service Representatives waiting to take your call, with technicians ready to fix your air conditioner 24/7. Whether you are in Gloucester County NJ or Delaware County PA, our fully-stocked repair vehicles contain all of the parts we need to get you cool again; TODAY!

"well there were delays but i forgive that. they did NOT get permits. a new hot water heater was brought and hooked up. But connections were loose and made it inoperable! its taken another plumber and an Electrician to fix what was wrong to actually get hot water. the original cost was $2500. Now add the $500 for 2nd plumber to reinstall the emergency shut off box that was installed improperly. AND an Electrician for $800 To fix the rest. They have not responded to email requesting attention. Technician was great - altho did not know everything necessary to complete my job. this has been a two week nightmare! i am NOT happy!"

Rian M on June 2024


Avatar for Gold Medal Service, LLC
Gold Medal Service, LLC
11 Cotters Lane
4.35(
311
)
Approved Pro
Gold Medal Service, LLC
11 Cotters Lane
4.35(
311
)
Approved Pro
Customers say: Quality work
47 years of experience
Free onsite estimate

Gold Medal Services, LLC, warrants and guarantees to the original purchaser, that should Customer accept and purchase Gold Medal’s recommended repair, such repair shall be free from defect in materials and workmanship under normal use and conditions for as long as the Customer owns the residence in which the recommended repair was provided or until the Unit in which the Covered Repair was performed, if applicable, is replaced.

"Gold Medal really helped out after our sewer line backed up into our basement. The other pros all wanted us to pay for a camera view first for several hundred. Then the actual cleaning of the line was $500 and up depending on the results of the camera. Gold Medal had a fixed price for cleaning out a sewer line. They came and quickly diagnosed the problem and cleaned it out. Our technician Brett was awesome and even put us in touch with DryTech to assist cleaning up the water damage."

Adam S on July 2024

Gold Medal Services, LLC, warrants and guarantees to the original purchaser, that should Customer accept and purchase Gold Medal’s recommended repair, such repair shall be free from defect in materials and workmanship under normal use and conditions for as long as the Customer owns the residence in which the recommended repair was provided or until the Unit in which the Covered Repair was performed, if applicable, is replaced.

"Gold Medal really helped out after our sewer line backed up into our basement. The other pros all wanted us to pay for a camera view first for several hundred. Then the actual cleaning of the line was $500 and up depending on the results of the camera. Gold Medal had a fixed price for cleaning out a sewer line. They came and quickly diagnosed the problem and cleaned it out. Our technician Brett was awesome and even put us in touch with DryTech to assist cleaning up the water damage."

Adam S on July 2024


Avatar for Nelly's Construction LLC
Nelly's Construction LLC
4.95(
22
)
Approved Pro
Nelly's Construction LLC
4.95(
22
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1588 local quotes requested

We specialize in concrete services, repairs, pouring, leveling, driveways, walkways, stamped patios, and more! 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! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Nelly was amazing to work with. Poured a 600sqft pad for our patio and it came out great. One of the slabs needed some help and he removed it and replaced it without question. He stuck by his word and absolutely crushed the job! Hard to find great men that stick to there word in the industry. Thank you Nelson!"

Sam D on May 2025

We specialize in concrete services, repairs, pouring, leveling, driveways, walkways, stamped patios, and more! 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! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Nelly was amazing to work with. Poured a 600sqft pad for our patio and it came out great. One of the slabs needed some help and he removed it and replaced it without question. He stuck by his word and absolutely crushed the job! Hard to find great men that stick to there word in the industry. Thank you Nelson!"

Sam D on May 2025


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
986 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 DRAIN KING
DRAIN KING
412 RIDGE RD
4.80(
106
)
Approved Pro
DRAIN KING
412 RIDGE RD
4.80(
106
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
168 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".

"Responded quickly and arrived per the slot provided. Job was completed in a timely manner."

Naidu G on May 2025

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".

"Responded quickly and arrived per the slot provided. Job was completed in a timely manner."

Naidu G on May 2025


Avatar for TQ Contracting LLC
TQ Contracting LLC
40 Eliot Road
4.91(
53
)
Approved Pro
TQ Contracting LLC
40 Eliot Road
4.91(
53
)
Approved Pro
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
944 local quotes requested

My name is Tom Quinn from TQ Contracting LLC. We have been serving our customers for 15 years out of Monmouth County NJ. I personally do all our work on all our jobs with the help of my crew. We do not use subcontractors. We provide quality work at affordable rates. We provide services in all aspects of home improvements, remodeling, and renovations. Some of our services include kitchen remodeling, bathroom remodeling, basements, roofing, siding, additions, framing, drywall,painting, and moldings.

"Tom and his crew did a beautiful job. Everything was done professionally and showed great attention to detail. I highly recommend TQ Contracting. The bathroom came out better than I envisioned."

Al G on August 2024

My name is Tom Quinn from TQ Contracting LLC. We have been serving our customers for 15 years out of Monmouth County NJ. I personally do all our work on all our jobs with the help of my crew. We do not use subcontractors. We provide quality work at affordable rates. We provide services in all aspects of home improvements, remodeling, and renovations. Some of our services include kitchen remodeling, bathroom remodeling, basements, roofing, siding, additions, framing, drywall,painting, and moldings.

"Tom and his crew did a beautiful job. Everything was done professionally and showed great attention to detail. I highly recommend TQ Contracting. The bathroom came out better than I envisioned."

Al G on August 2024


Avatar for Horizon Services
Horizon Services
17 Roland Avenue
4.41(
75
)
Approved Pro
Horizon Services
17 Roland Avenue
4.41(
75
)
Approved Pro
Customers say: Super punctual
1777 local quotes requested
38 years of experience

Horizon Services is the region’s largest and most well respected plumbing, heating and air conditioning company, with nearly 600 employees serving tens of thousands of homeowners throughout Delaware, Southeastern Pennsylvania, Southern New Jersey, and Northeastern Maryland. After a quarter of a century in business, Horizon Services remains fully committed to setting the industry standard for customer service, installation, and focusing on things that are important to busy homeowners: respect for their time, their home and their property; up-front pricing, and an unconditional 100% money back guarantee.

"Stellar service from a company with a well-earned reputation for solid workmanship. These guys are the real deal. Ramon was exceptionally knowledgeable and spent a great deal of time explaining what needed to be done. Once I signed the contract, everything happened at lightening speed. The servicemen showed up on time, were careful to not damage the doors, walls, or hardwood floors when they hauled in the new gas boiler and water heater, and left the basement in spotless condition. After I sold the oil stored in my old oil tank, Horizon was out the very next day to cut up the tank, clean the inside of it, and haul it onto the driveway for inspection. Not a single drop of oil was spilled. They are that meticulous about their work. A shout out not only to the remarkably zenlike Ramon, but also to Robert, who patiently and respectfully dealt with an unnecessarily finicky inspector."

Susan C on February 2024

Horizon Services is the region’s largest and most well respected plumbing, heating and air conditioning company, with nearly 600 employees serving tens of thousands of homeowners throughout Delaware, Southeastern Pennsylvania, Southern New Jersey, and Northeastern Maryland. After a quarter of a century in business, Horizon Services remains fully committed to setting the industry standard for customer service, installation, and focusing on things that are important to busy homeowners: respect for their time, their home and their property; up-front pricing, and an unconditional 100% money back guarantee.

"Stellar service from a company with a well-earned reputation for solid workmanship. These guys are the real deal. Ramon was exceptionally knowledgeable and spent a great deal of time explaining what needed to be done. Once I signed the contract, everything happened at lightening speed. The servicemen showed up on time, were careful to not damage the doors, walls, or hardwood floors when they hauled in the new gas boiler and water heater, and left the basement in spotless condition. After I sold the oil stored in my old oil tank, Horizon was out the very next day to cut up the tank, clean the inside of it, and haul it onto the driveway for inspection. Not a single drop of oil was spilled. They are that meticulous about their work. A shout out not only to the remarkably zenlike Ramon, but also to Robert, who patiently and respectfully dealt with an unnecessarily finicky inspector."

Susan C on February 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
1656 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

...
Showing 1-10 of 952

FAQs for tankless water heater installation projects in Princeton Junction, NJ

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 Princeton Junction, NJ homeowners’ guide to tankless water heater installations
From average costs to expert advice, get all the answers you need to get your job done.
trench being dug to repair sewer main in backyard
Jun 21, 2025
Jun 21, 2025
Use this guide to budget for sewer line replacement costs based on factors such as location, trenching, materials, repairs, landscaping, and more.
newly remodeled bathroom with new bath tub
Jun 21, 2025
Jun 21, 2025
Budget for bathtub replacement costs based on factors such as bathtub type, material, removal, hardware, labor, plumbing work, and more.
A woman fixing cistern in bathroom
Jun 21, 2025
Jun 21, 2025
Use this guide to budget for toilet repair costs based on factors such as problem type, replacement part prices, labor, and more.
A man installs a new shower
Jun 15, 2025
Jun 15, 2025
Looking to remodel your shower? Here’s how much it costs, what factors affect cost, and what to expect.
plumber cleaning a home sewer line in yard
Jun 15, 2025
Jun 15, 2025
Budget for main sewer line clog repair costs based on factors such as cleaning method, sewer age, project complexity, permits, labor, and more.
master bathroom shower wall being regrouted
Apr 21, 2025
Apr 21, 2025
Use this guide to estimate the cost to regrout a shower based on the type of grout, tile size, and more.
Share project details to get started.