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Find Tankless water heater installers in Mountainside

Avatar for Dawson Mechanical Contracting

Dawson Mechanical Contracting

4.85(
123
)
•Approved Pro

Dawson Mechanical Contracting

4.85(
123
)
•Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
38 years of experience

We are a BPI Building Performance Institute Accredted Plumbing and HVAC company, We are licensed plumbers and I am a certified plumbing instructor and fire inspector I also have 2 Backflow testing certifiactions. We do the highest quality residential and commercial work with my highly trained staff. I am the past president of the N.J. State league of Master plumbers for 2010-2011

"Great! The workers are very professional and punctual. They installed a tankless water heater. They cleaned everything up when they were done and then explained how it worked and how to maintain it throughout the years so it would work better. I highly recommend this company."

Lourdes A on July 2025

We are a BPI Building Performance Institute Accredted Plumbing and HVAC company, We are licensed plumbers and I am a certified plumbing instructor and fire inspector I also have 2 Backflow testing certifiactions. We do the highest quality residential and commercial work with my highly trained staff. I am the past president of the N.J. State league of Master plumbers for 2010-2011

"Great! The workers are very professional and punctual. They installed a tankless water heater. They cleaned everything up when they were done and then explained how it worked and how to maintain it throughout the years so it would work better. I highly recommend this company."

Lourdes A on July 2025

Avatar for Just In Case Plumbing & Heating LLC

Just In Case Plumbing & Heating LLC

5.00(
42
)
•Approved Pro

Just In Case Plumbing & Heating LLC

5.00(
42
)
•Approved Pro
Super Service Award
Customers say: Quick response
4 years of experience
Warranties offered

Looking for top-notch service? Look no further than Just In Case Plumbing & Heating LLC. Contact us today for all your plumbing needs!

"This company was great. They were kind, thorough and efficient. They willingly answered all my questions and even took the time to check for any other problems I may have had or might arise in the future. It was comforting to have the feeling they cared about their clients. I highly recommend Just In Case and will use them again for any future plumbing needs!"

Deb S on February 2026

Looking for top-notch service? Look no further than Just In Case Plumbing & Heating LLC. Contact us today for all your plumbing needs!

"This company was great. They were kind, thorough and efficient. They willingly answered all my questions and even took the time to check for any other problems I may have had or might arise in the future. It was comforting to have the feeling they cared about their clients. I highly recommend Just In Case and will use them again for any future plumbing needs!"

Deb S on February 2026

Avatar for Spartan Plumbing, Heating & Cooling

Spartan Plumbing, Heating & Cooling

5.00(
1
)
•Approved Pro

Spartan Plumbing, Heating & Cooling

5.00(
1
)
•Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 years of experience

We are a Plumbing, Heating, and Cooling Contractor with over over 24 years of experience in the field. With a strong focus on customer service and satisfaction at the top of our priorities. We strive to be the best at our trade and provide the customer with a unique experience with 100% satisfaction guaranteed.

"Great he showed up early, great communication and did a very clean job. No mess whatsoever."

Nuno A on August 2024

We are a Plumbing, Heating, and Cooling Contractor with over over 24 years of experience in the field. With a strong focus on customer service and satisfaction at the top of our priorities. We strive to be the best at our trade and provide the customer with a unique experience with 100% satisfaction guaranteed.

"Great he showed up early, great communication and did a very clean job. No mess whatsoever."

Nuno A on August 2024

Avatar for Garden State Water Heaters

Garden State Water Heaters

4.63(
436
)
•Approved Pro

Garden State Water Heaters

4.63(
436
)
•Approved Pro
Customers say: Super punctual
208 local quotes requested
8 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.

"Never showed up, kept promising times and never followed through on anything. "

ANTHONY S on February 2026

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.

"Never showed up, kept promising times and never followed through on anything. "

ANTHONY S on February 2026

Avatar for Advanced Professional Management, LLC

Advanced Professional Management, LLC

4.61(
726
)
•Approved Pro

Advanced Professional Management, LLC

4.61(
726
)
•Approved Pro
Customers say: Quick response
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

Avatar for H2bros Plumbing and Heating

H2bros Plumbing and Heating

5.00(
19
)
•Approved Pro

H2bros Plumbing and Heating

5.00(
19
)
•Approved Pro
1 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"I hired Jevin and Genaro for my hot water replacement. They are very professional, diligent and did a fabulous job in replacing my hot water heater. My old hot water heater was in a tight spot and there was a water meter in between but they did an amazing job taking out my old heater and putting a new one without any issues. I would highly recommend their services. Easy to work with, reasonable pricing and extremely professional. "

Darshani s on February 2026

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"I hired Jevin and Genaro for my hot water replacement. They are very professional, diligent and did a fabulous job in replacing my hot water heater. My old hot water heater was in a tight spot and there was a water meter in between but they did an amazing job taking out my old heater and putting a new one without any issues. I would highly recommend their services. Easy to work with, reasonable pricing and extremely professional. "

Darshani s on February 2026

Avatar for Pipe Works Services Inc

Pipe Works Services Inc

4.52(
168
)
•Approved Pro

Pipe Works Services Inc

4.52(
168
)
•Approved Pro
Super Service Award
Customers say: Quick response
26 years of experience
Free onsite estimate

Since 2000, we have built our reputation as one of Northern New Jersey’s most trusted experts for home comfort and efficiency. Improving the overall comfort and energy efficiency of your home is our #1 priority, and we believe we are the best. What sets us apart from other home energy contractors is that our team undergoes continuous extensive training that is unmatched by anyone in the industry. You can rest assured that we will perform the job right the first time around! With over 75 years of combined service experience, Pipe Works Services Inc. is a New Jersey Plumbing, Heating, Air Conditioning, Water Conditioning, Insulation, Electrical, Installation, Drain Cleaning, Maintenance, Replacement company located in Morris County. Pipe Works will send you only the best technician or specialist to fix, replace or install your needs.

"Wilfredo did an excellent job! Not only did he replace a leaking outdoor water faucet, he discovered that our water pressure regulator (PRV) was defective, which was causing numerous pressure problems with all our appliances, toilets and hot water heater. Fantastic diagnostics! Really impressed and likely saved us many future problems. Very pleased with service!"

Jeff L on February 2026

Since 2000, we have built our reputation as one of Northern New Jersey’s most trusted experts for home comfort and efficiency. Improving the overall comfort and energy efficiency of your home is our #1 priority, and we believe we are the best. What sets us apart from other home energy contractors is that our team undergoes continuous extensive training that is unmatched by anyone in the industry. You can rest assured that we will perform the job right the first time around! With over 75 years of combined service experience, Pipe Works Services Inc. is a New Jersey Plumbing, Heating, Air Conditioning, Water Conditioning, Insulation, Electrical, Installation, Drain Cleaning, Maintenance, Replacement company located in Morris County. Pipe Works will send you only the best technician or specialist to fix, replace or install your needs.

"Wilfredo did an excellent job! Not only did he replace a leaking outdoor water faucet, he discovered that our water pressure regulator (PRV) was defective, which was causing numerous pressure problems with all our appliances, toilets and hot water heater. Fantastic diagnostics! Really impressed and likely saved us many future problems. Very pleased with service!"

Jeff L on February 2026

Avatar for Good Tidings Plumbing Heating and Cooling

Good Tidings Plumbing Heating and Cooling

4.49(
69
)
•Approved Pro

Good Tidings Plumbing Heating and Cooling

4.49(
69
)
•Approved Pro
Customers say: Super punctual
25 local quotes requested
35 years of experience

Local, Trusted & Family Owned for over 34 Years • 24/7 emergency service • Same Day Emergency Service & Installation • Servicing All Brands • 0% Financing Available • Fully Stocked Plumbing & HVAC Truck • Professional & trustworthy Technicians • Fully Licensed & Insured • 96% Of Our Customers Give Us A 5-Star Rating • Our Triple Play starting at only $89 includes: Heating or AC Tune Up, Water Heater Flush, & Sump Pump Check

"They undoubtedly take delight in the job they do and leave everything tidy. I've worked with a few plumbers before, but these guys immediately impressed me. The work was completed quickly and correctly."

Paul D on October 2025

Local, Trusted & Family Owned for over 34 Years • 24/7 emergency service • Same Day Emergency Service & Installation • Servicing All Brands • 0% Financing Available • Fully Stocked Plumbing & HVAC Truck • Professional & trustworthy Technicians • Fully Licensed & Insured • 96% Of Our Customers Give Us A 5-Star Rating • Our Triple Play starting at only $89 includes: Heating or AC Tune Up, Water Heater Flush, & Sump Pump Check

"They undoubtedly take delight in the job they do and leave everything tidy. I've worked with a few plumbers before, but these guys immediately impressed me. The work was completed quickly and correctly."

Paul D on October 2025

Avatar for Pipe Works Services, Inc.

Pipe Works Services, Inc.

4.22(
64
)
•Approved Pro

Pipe Works Services, Inc.

4.22(
64
)
•Approved Pro
Customers say: True professional
36 years of experience
Free onsite estimate

We are the premier plumbing, heating, air conditioning, drain cleaning, electrical and insulation company serving the New Jersey area for the last two decades. We pride ourselves as the number one service company. Call today!

"Timely and well done"

John B on December 2024

We are the premier plumbing, heating, air conditioning, drain cleaning, electrical and insulation company serving the New Jersey area for the last two decades. We pride ourselves as the number one service company. Call today!

"Timely and well done"

John B on December 2024

Avatar for Continental Plumbing and Heating

Continental Plumbing and Heating

4.86(
28
)
•Approved Pro

Continental Plumbing and Heating

4.86(
28
)
•Approved Pro
Customers say: Quick response
41 years of experience
Warranties offered

We are a Plumbing and Heating contractor, give us a call!! We’ve been in business for over 30 years we are always there for our customers when they need us. You can trust us in doing a great job with reasonable prices at your convenience. We are professionals who are honest, reliable with great integrity. We are a licensed contractor at your reach to fix your plumbing and heating issues!! We offer a 5 % discount for 1st time Customers. Our New Location!! 1374 Stuyvesant Ave., Union, NJ 07083

"A+ experience. Edmundo, Juan and Washington were extremely professional and efficient and did a great job. "

Randon L on November 2025

We are a Plumbing and Heating contractor, give us a call!! We’ve been in business for over 30 years we are always there for our customers when they need us. You can trust us in doing a great job with reasonable prices at your convenience. We are professionals who are honest, reliable with great integrity. We are a licensed contractor at your reach to fix your plumbing and heating issues!! We offer a 5 % discount for 1st time Customers. Our New Location!! 1374 Stuyvesant Ave., Union, NJ 07083

"A+ experience. Edmundo, Juan and Washington were extremely professional and efficient and did a great job. "

Randon L on November 2025

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