Top-rated tankless water heater repair pros.

Get matched with top tankless water heater repair pros 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 repair pros in Hillsborough

Avatar for Garden State Water Heaters
Garden State Water Heaters
15 Shipman Place
4.64(
427
)
Approved Pro
Garden State Water Heaters
15 Shipman Place
4.64(
427
)
Approved Pro
Super Service Award
Customers say: Super punctual
163 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.

"Good plumber, explained well, decent price."

Brian R on June 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.

"Good plumber, explained well, decent price."

Brian R on June 2025


Avatar for Pascale Plumbing & Heating, Inc.
Pascale Plumbing & Heating, Inc.
173 Broad Street
4.67(
103
)
Approved Pro
Pascale Plumbing & Heating, Inc.
173 Broad Street
4.67(
103
)
Approved Pro
Customers say: True professional
31 local quotes requested
14 years of experience

When your plumbing stops working, you need fast, reliable services. You can get all of that and more, from a dependable professional like Angelo Pascale. Our trusted team will help return your home to normal. We specialize in all your plumbing needs. Call us for a free estimate today.

"On time, solid work and respectful."

Philip s on May 2025

When your plumbing stops working, you need fast, reliable services. You can get all of that and more, from a dependable professional like Angelo Pascale. Our trusted team will help return your home to normal. We specialize in all your plumbing needs. Call us for a free estimate today.

"On time, solid work and respectful."

Philip s on May 2025


Avatar for Garden State Water Heaters LLC
Garden State Water Heaters LLC
4.63(
24
)
Approved Pro
Garden State Water Heaters LLC
4.63(
24
)
Approved Pro
Customers say: Quality work
385 local quotes requested
34 years of experience

Specializing in PLUMBING SERVICES! We have been in business for 30 years! We always guarantee your satisfaction and won’t leave until the job is done right. We take pride in ourselves and on the quality work we provide, while always delivering great customer service! Check out our services offered, then call --or-- click to schedule a free estimate today!

"Carmine did an excellent job removing and installing the hot water heater. It was Sunday afternoon and he came over within an hour, two hours later the job was completed. Really appreciated his help. Great guy, knows his business and was extra careful as if it was his own house to make sure nothing got damaged while transporting the old and new tanks. I’ll definitely call again for any more plumbing jobs. Thanks again"

Jason H on March 2025

Specializing in PLUMBING SERVICES! We have been in business for 30 years! We always guarantee your satisfaction and won’t leave until the job is done right. We take pride in ourselves and on the quality work we provide, while always delivering great customer service! Check out our services offered, then call --or-- click to schedule a free estimate today!

"Carmine did an excellent job removing and installing the hot water heater. It was Sunday afternoon and he came over within an hour, two hours later the job was completed. Really appreciated his help. Great guy, knows his business and was extra careful as if it was his own house to make sure nothing got damaged while transporting the old and new tanks. I’ll definitely call again for any more plumbing jobs. Thanks again"

Jason H on March 2025


Avatar for Alpine Heating and Cooling
Alpine Heating and Cooling
125 Hillside Ave
4.69(
235
)
Approved Pro
Alpine Heating and Cooling
125 Hillside Ave
4.69(
235
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
830 local quotes requested

Alpine is a fourth-generation, family-owned business proudly serving Central NJ as the region’s premier air conditioning and heating company for more than five decades. We specialize in HVAC repairs, system replacements, and ongoing maintenance. Custom HVAC Solutions: We design systems specifically for your home’s size and your financial goals, with robust rebates, reduced utility bills and 0% financing available for up to 7 years. Honest, Skilled Technicians: Our licensed, fully trained technicians are focused on fixing the problem, not upselling you on unnecessary equipment or services. Seasonal Tune-Ups & Protection Plans: Keep your system running efficiently with seasonal tune-ups and take advantage of our service contracts for year-round peace of mind. Beyond Heating & Cooling: We also install hot water heaters, indoor air quality solutions like humidifiers and air cleaners, as well as generators and sump pumps to keep your home protected in emergencies.

"Alpine installed my Trane heating and air conditioning system 18 years ago. At that time, I decided to purchase a service contract that would allow me to receive 2x a year cleaning and inspection. It was the best investment I could have made! Today their technician Troy came to conduct the preseason service on my air conditioner. My appointment was for 10am and Troy arrived promptly at 10am! During the course of the inspection, Troy discovered that the dual run capacitor was leaking oil. He showed me the part and suggested that it could be a problem down the road. Since the system is 18 years old, I wasn't surprised that there might be a worn part that would need to be replaced. Luckily, he had the part on hand and was able to do the repair right away. Because I had the service contract, I received a discount on the parts and labor which was greatly appreciated. I'm so glad that I called Alpine all those years ago. I highly recommend them for your heating and cooling needs!"

Claudia K on June 2025

Alpine is a fourth-generation, family-owned business proudly serving Central NJ as the region’s premier air conditioning and heating company for more than five decades. We specialize in HVAC repairs, system replacements, and ongoing maintenance. Custom HVAC Solutions: We design systems specifically for your home’s size and your financial goals, with robust rebates, reduced utility bills and 0% financing available for up to 7 years. Honest, Skilled Technicians: Our licensed, fully trained technicians are focused on fixing the problem, not upselling you on unnecessary equipment or services. Seasonal Tune-Ups & Protection Plans: Keep your system running efficiently with seasonal tune-ups and take advantage of our service contracts for year-round peace of mind. Beyond Heating & Cooling: We also install hot water heaters, indoor air quality solutions like humidifiers and air cleaners, as well as generators and sump pumps to keep your home protected in emergencies.

"Alpine installed my Trane heating and air conditioning system 18 years ago. At that time, I decided to purchase a service contract that would allow me to receive 2x a year cleaning and inspection. It was the best investment I could have made! Today their technician Troy came to conduct the preseason service on my air conditioner. My appointment was for 10am and Troy arrived promptly at 10am! During the course of the inspection, Troy discovered that the dual run capacitor was leaking oil. He showed me the part and suggested that it could be a problem down the road. Since the system is 18 years old, I wasn't surprised that there might be a worn part that would need to be replaced. Luckily, he had the part on hand and was able to do the repair right away. Because I had the service contract, I received a discount on the parts and labor which was greatly appreciated. I'm so glad that I called Alpine all those years ago. I highly recommend them for your heating and cooling needs!"

Claudia K on June 2025


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
171 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 Troy Resin
Troy Resin
190 Lincoln Ave
5.00(
4
)
Approved Pro
Troy Resin
190 Lincoln Ave
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2695 local quotes requested

Troy Resin is a trusted name in home remodeling, offering expert services in both general renovations and specialized kitchen and bath remodeling. Our team is dedicated to transforming spaces with innovative designs and superior craftsmanship. Whether you're looking to update your entire home or create your dream kitchen or bath, we provide customized solutions tailored to your unique vision. From planning and design to construction and finishing touches, we ensure every project is completed to the highest standards of quality and efficiency. At Troy Resin, we pride ourselves on delivering exceptional results that enhance the beauty, functionality, and value of your home, while focusing on customer satisfaction every step of the way. Anything you need we provide!

"It went amazing the service was perfect could not ask for better service. The work is amazing ,could not have done a better job , i am so happy with the way everything came out. I will definitely be recommending to my friends and family."

Novian G on November 2024

Troy Resin is a trusted name in home remodeling, offering expert services in both general renovations and specialized kitchen and bath remodeling. Our team is dedicated to transforming spaces with innovative designs and superior craftsmanship. Whether you're looking to update your entire home or create your dream kitchen or bath, we provide customized solutions tailored to your unique vision. From planning and design to construction and finishing touches, we ensure every project is completed to the highest standards of quality and efficiency. At Troy Resin, we pride ourselves on delivering exceptional results that enhance the beauty, functionality, and value of your home, while focusing on customer satisfaction every step of the way. Anything you need we provide!

"It went amazing the service was perfect could not ask for better service. The work is amazing ,could not have done a better job , i am so happy with the way everything came out. I will definitely be recommending to my friends and family."

Novian G on November 2024


Avatar for Modern Knight Designs LLC
Modern Knight Designs LLC
Forest Street
5.00(
7
)
Approved Pro
Modern Knight Designs LLC
Forest Street
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

I strive to design the clients vision aswell as provide renovation services of a luxurious kitchen and bath of their dreams. I pay attention to details and I work well with my clients to build their project scope of work. My focus is quality and professionalism!

"I was looking for a pro who was experienced, honest and could communicate to get the job done right. Dave was the man. He knew what I wanted and suggested options to give the project(complete kitchen and bath remodel) a 5 star review. After my rental was completely destroyed from a tenant, I was up a creek without a paddle. Dave and Pablo went above and beyond to create the Reno I was looking for. From the first interview to the end result, I have no reservations for recommending ModernKnight for any project. They were on time , completely transparent and accommodating every step of the way. Are you looking for the pro to get your job done? Look no further, Dave is the guy! Thanks again Dave and Pablo for everything and more! Freddy."

Freddy W on March 2025

I strive to design the clients vision aswell as provide renovation services of a luxurious kitchen and bath of their dreams. I pay attention to details and I work well with my clients to build their project scope of work. My focus is quality and professionalism!

"I was looking for a pro who was experienced, honest and could communicate to get the job done right. Dave was the man. He knew what I wanted and suggested options to give the project(complete kitchen and bath remodel) a 5 star review. After my rental was completely destroyed from a tenant, I was up a creek without a paddle. Dave and Pablo went above and beyond to create the Reno I was looking for. From the first interview to the end result, I have no reservations for recommending ModernKnight for any project. They were on time , completely transparent and accommodating every step of the way. Are you looking for the pro to get your job done? Look no further, Dave is the guy! Thanks again Dave and Pablo for everything and more! Freddy."

Freddy W on March 2025


Avatar for Nicopal Construction
Nicopal Construction
181 Town Center Dr
4.86(
66
)
Approved Pro
Nicopal Construction
181 Town Center Dr
4.86(
66
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
501 local quotes requested

Nicopal Construction is a locally owned and operated business serving the North New Jersey area. We offer a wide range of home improvement services and have over 25 years of experience. We combine quality materials with expert installation to complete your project to 100 percent satisfaction. On our initial visit we can offer design ideas and give exact costs. If you feel it’s a good fit you move forward. We are Not a high pressured company. We understand comfort levels . Financing available.

"Would highly recommend Vincent and his team. They showed up on time and cleaned every day after leaving. I did a tub to shower conversation and it looks great. I like that Vincent had suggestions that I wouldn’t have thought of. They were so good I’m having them do my second bathroom!"

Patricia W on June 2025

Nicopal Construction is a locally owned and operated business serving the North New Jersey area. We offer a wide range of home improvement services and have over 25 years of experience. We combine quality materials with expert installation to complete your project to 100 percent satisfaction. On our initial visit we can offer design ideas and give exact costs. If you feel it’s a good fit you move forward. We are Not a high pressured company. We understand comfort levels . Financing available.

"Would highly recommend Vincent and his team. They showed up on time and cleaned every day after leaving. I did a tub to shower conversation and it looks great. I like that Vincent had suggestions that I wouldn’t have thought of. They were so good I’m having them do my second bathroom!"

Patricia W on June 2025


Avatar for star22home
star22home
22 Plainfield Ave
4.64(
74
)
Approved Pro
star22home
22 Plainfield Ave
4.64(
74
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
530 local quotes requested

Our mission is to service our customers in a prompt and professional manner. We do not consider a home improvement or remodeling project complete until the work is finished, the job site is clean, and the customer is completely satisfied. Licensed & Insured since 1997

"This is an overdue review. I hired Bernie and his team for a kitchen remodel in June 2021, after he did an excellent job with my three bathrooms in 2020. The kitchen remodel was also excellent. His works are efficient, hardworking and clean. My remodel took two weeks, as he had quoted and for the exact price he had quoted. I would hire him and his team again and I referred them to a coworker for her bathroom project. She was also very pleased with their work."

Maria C on January 2025

Our mission is to service our customers in a prompt and professional manner. We do not consider a home improvement or remodeling project complete until the work is finished, the job site is clean, and the customer is completely satisfied. Licensed & Insured since 1997

"This is an overdue review. I hired Bernie and his team for a kitchen remodel in June 2021, after he did an excellent job with my three bathrooms in 2020. The kitchen remodel was also excellent. His works are efficient, hardworking and clean. My remodel took two weeks, as he had quoted and for the exact price he had quoted. I would hire him and his team again and I referred them to a coworker for her bathroom project. She was also very pleased with their work."

Maria C on January 2025


Avatar for L & B Construction
L & B Construction
247 Wall St
4.84(
88
)
Approved Pro
L & B Construction
247 Wall St
4.84(
88
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
464 local quotes requested

L & B Construction is a family owned business with over 15 years of experience. Our main focus is on bathroom and kitchen remodeling, drywall repair, painting, carpentry, tile install and repair, and handyman services. We pride ourselves on giving an providing ours customers with the highest quality work. Also, passing savings from our affiliates that we purchase materials from.

"Excellent experience and beautiful work. The team was kind a respectful, and they had a great eye for detail. Thank you!"

Jerry S on May 2025

L & B Construction is a family owned business with over 15 years of experience. Our main focus is on bathroom and kitchen remodeling, drywall repair, painting, carpentry, tile install and repair, and handyman services. We pride ourselves on giving an providing ours customers with the highest quality work. Also, passing savings from our affiliates that we purchase materials from.

"Excellent experience and beautiful work. The team was kind a respectful, and they had a great eye for detail. Thank you!"

Jerry S on May 2025

...
Showing 1-10 of 946

FAQs for tankless water heater installation projects in Hillsborough, NJ

Professional flushing services for tankless water heaters run about $200 per visit. This essential maintenance procedure eliminates mineral deposits from critical components, particularly the heat exchanger. While homeowners can purchase DIY flushing kits for $50 to $100, professional service offers the advantage of thorough cleaning with proper techniques. Professional maintenance also includes inspection of additional components that might need attention.

Industry experts and manufacturers recommend annual maintenance for tankless water heaters, with more frequent service (every six months) for homes with challenging water conditions. This regular attention prevents efficiency losses and extends the unit's operational lifespan. Watch for warning signs like reduced water temperature, inconsistent performance, or system error codes that might indicate maintenance is needed sooner than scheduled.

Neglecting regular maintenance allows mineral scale to accumulate within your system, restricting water flow and reducing heating efficiency. This forces your unit to work harder, consuming more energy while delivering less satisfactory performance. Over time, this strain can lead to component failures, inconsistent water temperatures, and premature system replacement. Additionally, most manufacturers require documentation of regular maintenance to honor warranty coverage for major components.

Share project details to get started.