Top-rated tankless water heater installers.

Get matched with top tankless water heater installers in Stewartsville, NJ

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.

Find Tankless water heater installers in Stewartsville

Avatar for Advanced Professional Management, LLC

Advanced Professional Management, LLC

4.20(
869
)
•Approved Pro

Advanced Professional Management, LLC

4.20(
869
)
•Approved Pro
Customers say: Quality work
27 years of experience
Emergency services offered

Efficient and Honest, Advanced Professional’s has become a reputable and well-known service provider. We are fully licensed and insured so our team is up for every job, whether it is high-quality heating, plumbing, air conditioning, or managing general contractor projects (residential, commercial and industrial) we provide the skills and experience our clients have come to expect available 24/7. We want our customers to be satisfied with our work. When it comes to the job we don’t see our clients as just people we service, we treat them like family.

"Excellent job??????. Excellent customer service and very courteous. Left work area very clean and tidy."

Shirley D on December 2023

Efficient and Honest, Advanced Professional’s has become a reputable and well-known service provider. We are fully licensed and insured so our team is up for every job, whether it is high-quality heating, plumbing, air conditioning, or managing general contractor projects (residential, commercial and industrial) we provide the skills and experience our clients have come to expect available 24/7. We want our customers to be satisfied with our work. When it comes to the job we don’t see our clients as just people we service, we treat them like family.

"Excellent job??????. Excellent customer service and very courteous. Left work area very clean and tidy."

Shirley D on December 2023

Pump and Go

5.00(
1
)
•Approved Pro

Pump and Go

5.00(
1
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
Emergency services offered

We specialize in plumbing services, repairs, inspections, installations, drain cleaning, 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!

"Pump N Go is great! Would definitely recommend using them again!"

Val K on January 2024

We specialize in plumbing services, repairs, inspections, installations, drain cleaning, 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!

"Pump N Go is great! Would definitely recommend using them again!"

Val K on January 2024

BDK Construction LLC.

No reviews yet

BDK Construction LLC.

No reviews yet
20 years of experience

Growing construction company able to complete all phases of new and old construction

Growing construction company able to complete all phases of new and old construction

Avatar for Bellari Home Remodeling

Bellari Home Remodeling

4.74(
107
)

Bellari Home Remodeling

4.74(
107
)
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers

Bellari offers home remodeling solutions just like we have since we were founded in 1950 as Somerville Aluminum. Our staff of experienced professionals sell and install a wide-range of name-brand home remodeling products. From windows, doors, siding, roofing, decks, sunrooms, awnings and handyman services to kitchens and bathrooms, we pride ourselves on the versatility and quality of the home remodeling solutions we offer New Jersey homeowners. Contact Bellari today to get an estimate for your next home improvement project, or visit our showroom in Branchburg, NJ.

Bellari offers home remodeling solutions just like we have since we were founded in 1950 as Somerville Aluminum. Our staff of experienced professionals sell and install a wide-range of name-brand home remodeling products. From windows, doors, siding, roofing, decks, sunrooms, awnings and handyman services to kitchens and bathrooms, we pride ourselves on the versatility and quality of the home remodeling solutions we offer New Jersey homeowners. Contact Bellari today to get an estimate for your next home improvement project, or visit our showroom in Branchburg, NJ.

Avatar for AJ Perri

AJ Perri

4.30(
1,538
)

AJ Perri

4.30(
1,538
)
Customers say: Super punctual
55 years of experience

For fast and exceptional service for all of your heating, cooling or plumbing needs, call us now: 732-333-3655! Since 1971, A.J. Perri has been proudly serving New Jersey homeowners and businesses across Bergen*, Essex, Mercer, Middlesex, Monmouth, Morris*, Ocean*, Somerset, Passaic*, Hudson*, Sussex*, and Union counties. With over 50 years of experience in heating, air conditioning, plumbing, and indoor air quality systems, A.J. Perri stands behind every installation, service and product with an unmatched 100% satisfaction guarantee. A.J. Perri offers you peace of mind and an established reputation for reliability, quality, and excellence in customer service. You can trust A.J. Perri to take care of your furnace, air conditioner or plumbing repair, service, or replacement. A.J. Perri can also help you with your heat pump, air handler, ductless split system, water heater or purification, sump pump, air cleaner, air filtration system, humidifier, and air ducts. Contact us if you have any questions about service in your area. Service offered 24/7/365. For more information: call or email us at info@ajperri.com. *Additional info: Not all services available in all areas. License# 19HC00103100, 36BI01256600, PA- PA126178

"I paid an excessive amount of money to replace the heating system. The sales rep gave us comfort that everything will be done right and the two experienced and fully licensed professionals will be doing the work and that there is a no-excuse warranty, 1 degree guarantee, and 10 years on both the service and hardware. It just so happened that after the install, I told the installer I smelt gas and to check everything. He simply waved it off and said it's fine, give it some time. I told AJ Perri multiple times that there is a gas leak and I asked them to rectify the situation. I called them multiple times to send someone to fix the issue immediately and urgently, but they refused to commit to any resolution and won't send anyone until the gas is turned off for the whole building. I explained that its a condo and that the unit itself in the utility closet has a separate gas shutoff valve. Knowing this, they refused to remediate the gas leak."

Richard S on February 2026

For fast and exceptional service for all of your heating, cooling or plumbing needs, call us now: 732-333-3655! Since 1971, A.J. Perri has been proudly serving New Jersey homeowners and businesses across Bergen*, Essex, Mercer, Middlesex, Monmouth, Morris*, Ocean*, Somerset, Passaic*, Hudson*, Sussex*, and Union counties. With over 50 years of experience in heating, air conditioning, plumbing, and indoor air quality systems, A.J. Perri stands behind every installation, service and product with an unmatched 100% satisfaction guarantee. A.J. Perri offers you peace of mind and an established reputation for reliability, quality, and excellence in customer service. You can trust A.J. Perri to take care of your furnace, air conditioner or plumbing repair, service, or replacement. A.J. Perri can also help you with your heat pump, air handler, ductless split system, water heater or purification, sump pump, air cleaner, air filtration system, humidifier, and air ducts. Contact us if you have any questions about service in your area. Service offered 24/7/365. For more information: call or email us at info@ajperri.com. *Additional info: Not all services available in all areas. License# 19HC00103100, 36BI01256600, PA- PA126178

"I paid an excessive amount of money to replace the heating system. The sales rep gave us comfort that everything will be done right and the two experienced and fully licensed professionals will be doing the work and that there is a no-excuse warranty, 1 degree guarantee, and 10 years on both the service and hardware. It just so happened that after the install, I told the installer I smelt gas and to check everything. He simply waved it off and said it's fine, give it some time. I told AJ Perri multiple times that there is a gas leak and I asked them to rectify the situation. I called them multiple times to send someone to fix the issue immediately and urgently, but they refused to commit to any resolution and won't send anyone until the gas is turned off for the whole building. I explained that its a condo and that the unit itself in the utility closet has a separate gas shutoff valve. Knowing this, they refused to remediate the gas leak."

Richard S on February 2026

Avatar for Schaffer Structural Systems

Schaffer Structural Systems

5.00(
4
)

Schaffer Structural Systems

5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Family own & operated.

"The old fence was removed; the ground regraded in several spots; the new rail post & rail fence installed including two gates. All the old fencing materials were taken away and a through cleanup performed. This all as per their price and performance quote."

Joseph S on April 2023

Family own & operated.

"The old fence was removed; the ground regraded in several spots; the new rail post & rail fence installed including two gates. All the old fencing materials were taken away and a through cleanup performed. This all as per their price and performance quote."

Joseph S on April 2023

CB Plumbing and Heating

No reviews yet

CB Plumbing and Heating

No reviews yet
Emergency services offered

Call us today! Available 24/7/365. Ready willing and able to help with whatever problem that might arise day or night. Call us today to schedule an appointment.

Call us today! Available 24/7/365. Ready willing and able to help with whatever problem that might arise day or night. Call us today to schedule an appointment.

Woodlawn 24/7 Plumbing Co

No reviews yet

Woodlawn 24/7 Plumbing Co

No reviews yet
27 years of experience

We are a family operated business that has been going in business since 1999, specialising in various areas of plumber related work as well as heating and blocked drains, we also have a 24 hour emergency plumber at hand. We offer a complete maintenance service for any size project for both residential and commercial applications.

We are a family operated business that has been going in business since 1999, specialising in various areas of plumber related work as well as heating and blocked drains, we also have a 24 hour emergency plumber at hand. We offer a complete maintenance service for any size project for both residential and commercial applications.

United Custom Made Furniture

4.75(
4
)

United Custom Made Furniture

4.75(
4
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

BARDI PLUMBING & HEATING

5.00(
5
)

BARDI PLUMBING & HEATING

5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

FULL SERVICE COMPANY

FULL SERVICE COMPANY

...
Showing 1-10 of 1003

The Stewartsville, 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.

See all articles