Get matched with top water heater pros in Mountainside, NJ
There are 28 highly-rated local water heater pros.
TRUSTED BY MOUNTAINSIDE, NJ HOMEOWNERS
4.8 
43 Verified Reviews for Water Heater Service pros in Mountainside, NJ
*The Angi rating for Water Heater Service companies in Mountainside, NJ is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.
*The HomeAdvisor rating for Water Heater Service companies in Mountainside, NJ is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.
Last update on July 19, 2025
Water heater pros in Mountainside
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!
"Very fast reply and prompt service. Knowledgeable about heat pump water heaters and insulation cost reasonable compared to other quotes. Punctual and quick install. The only problems were that they did not bring a long enough hose for a condensate pump and left the pump hook up in a partially finished state, said they would return to fix but have not contacted me to do so. Also they said I would need to make another appointment to return to remove the old gas pipe that went to my old heater instead of just taking it at the time."
Thomas N on July 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!
"Very fast reply and prompt service. Knowledgeable about heat pump water heaters and insulation cost reasonable compared to other quotes. Punctual and quick install. The only problems were that they did not bring a long enough hose for a condensate pump and left the pump hook up in a partially finished state, said they would return to fix but have not contacted me to do so. Also they said I would need to make another appointment to return to remove the old gas pipe that went to my old heater instead of just taking it at the time."
Thomas N on July 2025
At AJT Complete Construction, we take great pride in our experience, expertise, quality, and customer service. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. We offer free estimates and evaluations
"Great communication. Fast, reliable and professional service. Would 110% hire again!"
Oliver S on April 2025
At AJT Complete Construction, we take great pride in our experience, expertise, quality, and customer service. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. We offer free estimates and evaluations
"Great communication. Fast, reliable and professional service. Would 110% hire again!"
Oliver S on April 2025
On the Spot Plumbing and Heating is a trusted service provider located in Totowa, New Jersey, serving both residential and commercial clients throughout the region. Specializing in a comprehensive range of plumbing and heating solutions, the company prides itself on delivering prompt, reliable, and high-quality service. From routine maintenance and repairs to installations and emergency services, On the Spot Plumbing and Heating ensures that every job is handled with utmost professionalism and attention to detail. With a focus on customer satisfaction, the team of skilled technicians is committed to providing tailored solutions that meet the specific needs of their clients, ensuring their plumbing and heating systems operate efficiently and effectively year-round.
On the Spot Plumbing and Heating is a trusted service provider located in Totowa, New Jersey, serving both residential and commercial clients throughout the region. Specializing in a comprehensive range of plumbing and heating solutions, the company prides itself on delivering prompt, reliable, and high-quality service. From routine maintenance and repairs to installations and emergency services, On the Spot Plumbing and Heating ensures that every job is handled with utmost professionalism and attention to detail. With a focus on customer satisfaction, the team of skilled technicians is committed to providing tailored solutions that meet the specific needs of their clients, ensuring their plumbing and heating systems operate efficiently and effectively year-round.
Welcome to Poseidon Plumbing, where mastery over water ensures peace of mind for every homeowner and business in Northern New Jersey. Named after the god of the sea, Poseidon Plumbing stands as a beacon of quality, reliability, and impeccable service in the plumbing industry. At Poseidon Plumbing, we are more than just service providers; we are guardians of your comfort and safety. Our expert team is equipped with the latest tools and ongoing training to handle any plumbing challenge, big or small, with unmatched precision and care. Why Trust Poseidon Plumbing? Expertise You Can Rely On: Our skilled technicians are seasoned experts, dedicated to providing top-tier workmanship. They navigate the complexities of plumbing with ease, ensuring a seamless experience from start to finish. Ready Whenever You Need Us: Plumbing issues don't wait, and neither do we. Our emergency services are available 24/7, making sure we're there exactly when you need us, day or night. Sustainable Solutions: We're committed to protecting our planet. By implementing eco-friendly technologies and methods, we help conserve water, reduce waste, and save you money. Customer First Approach: Your satisfaction is our priority. We strive to deliver not just services but solutions that last, focusing on your needs and ensuring you’re happy with the outcome. From residential repairs to commercial installations, Poseidon Plumbing ensures every project is completed with the diligence and dedication it deserves. With us, you're not just getting a plumbing service; you're investing in a long-term solution that puts quality and customer satisfaction at the forefront. Choose Poseidon Plumbing today and experience a level of service that's simply divine. Contact us to see how we can make your plumbing problems a thing of the past! Poseidon Plumbing — Unrivaled Mastery, Unmatched Service!
"It was job well done."
Glenn O on July 2025
Welcome to Poseidon Plumbing, where mastery over water ensures peace of mind for every homeowner and business in Northern New Jersey. Named after the god of the sea, Poseidon Plumbing stands as a beacon of quality, reliability, and impeccable service in the plumbing industry. At Poseidon Plumbing, we are more than just service providers; we are guardians of your comfort and safety. Our expert team is equipped with the latest tools and ongoing training to handle any plumbing challenge, big or small, with unmatched precision and care. Why Trust Poseidon Plumbing? Expertise You Can Rely On: Our skilled technicians are seasoned experts, dedicated to providing top-tier workmanship. They navigate the complexities of plumbing with ease, ensuring a seamless experience from start to finish. Ready Whenever You Need Us: Plumbing issues don't wait, and neither do we. Our emergency services are available 24/7, making sure we're there exactly when you need us, day or night. Sustainable Solutions: We're committed to protecting our planet. By implementing eco-friendly technologies and methods, we help conserve water, reduce waste, and save you money. Customer First Approach: Your satisfaction is our priority. We strive to deliver not just services but solutions that last, focusing on your needs and ensuring you’re happy with the outcome. From residential repairs to commercial installations, Poseidon Plumbing ensures every project is completed with the diligence and dedication it deserves. With us, you're not just getting a plumbing service; you're investing in a long-term solution that puts quality and customer satisfaction at the forefront. Choose Poseidon Plumbing today and experience a level of service that's simply divine. Contact us to see how we can make your plumbing problems a thing of the past! Poseidon Plumbing — Unrivaled Mastery, Unmatched Service!
"It was job well done."
Glenn O on July 2025
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
Titan Plumbing Sewer & Drain is your go-to solution for all your drain cleaning needs in the New York City (Tri-State Area). Our team of experts is dedicated to providing top-notch plumbing services that are reliable and efficient. With years of experience in the industry, we have the knowledge and skills to tackle any drain cleaning project, big or small. What sets us apart from our competitors is our commitment to customer satisfaction. We prioritize your needs and ensure that the job is done right the first time. Don't let clogged drains disrupt your daily routine. Contact Titan Plumbing Sewer & Drain today and experience the difference for yourself.
"Excellently"
Franscena H on July 2024
Titan Plumbing Sewer & Drain is your go-to solution for all your drain cleaning needs in the New York City (Tri-State Area). Our team of experts is dedicated to providing top-notch plumbing services that are reliable and efficient. With years of experience in the industry, we have the knowledge and skills to tackle any drain cleaning project, big or small. What sets us apart from our competitors is our commitment to customer satisfaction. We prioritize your needs and ensure that the job is done right the first time. Don't let clogged drains disrupt your daily routine. Contact Titan Plumbing Sewer & Drain today and experience the difference for yourself.
"Excellently"
Franscena H on July 2024
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
"Appointment made for day requested. That day received early reconfirmation, then received call when plumber 20 minutes away. Upon arrival Ian explained options available, and possible procedures. He was professional, friendly, and cleaned everything up before leaving."
Bert M on December 2024
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
"Appointment made for day requested. That day received early reconfirmation, then received call when plumber 20 minutes away. Upon arrival Ian explained options available, and possible procedures. He was professional, friendly, and cleaned everything up before leaving."
Bert M on December 2024
We specialize in plumbing services, repairs, inspections, installations, drain cleaning, water heaters, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!
"Very knowledgeable and attention to details. He was able to meticulous fix water leak in one hard to reach area. He showed up on time and finish the job in 2 hours."
SATISH K on February 2025
We specialize in plumbing services, repairs, inspections, installations, drain cleaning, water heaters, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!
"Very knowledgeable and attention to details. He was able to meticulous fix water leak in one hard to reach area. He showed up on time and finish the job in 2 hours."
SATISH K on February 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
"This was my 2nd time using this company. They were on-time, very professional, explained everything I needed to know, and did an excellent job."
Wafiyyah F on January 2024
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
"This was my 2nd time using this company. They were on-time, very professional, explained everything I needed to know, and did an excellent job."
Wafiyyah F on January 2024
Here at All purpose sewer & drains corp your ? EMERGENCY?is our priority. we are proudly servicing the tri state area with all of your plumbing needs?? ☎️CALL NOW 347-723-6547☎️ ?24 HOUR EMERGENCY SERVICE? ✅FREE ESTIMATES✅ * trouble shooting leaks/making repairs on (all water line, waste lines, heating lines ,gas lines ETC) * installing new fixture such as (shower body's, faucets, sinks, vanity's, tollets, washer machines, dryers, dish washer, stoves, ice machines, pot fillers, outside hose spickets) * snaking all drain lines/camera examination (tub, sinks, showers, washer machine, liter lines, toilet lines, main house trap, condensate lines) * maintaining/installing new boilers for such(baseboard heat, radiant heat, steam heat, hot water) * Hot water heaters (tank hot water heaters, tankless hot water heaters) Instagram-all_purpose.corp Email- [email protected] Phone number 347-723-6547
"Fast. Efficient. Good price."
Michael C on November 2024
Here at All purpose sewer & drains corp your ? EMERGENCY?is our priority. we are proudly servicing the tri state area with all of your plumbing needs?? ☎️CALL NOW 347-723-6547☎️ ?24 HOUR EMERGENCY SERVICE? ✅FREE ESTIMATES✅ * trouble shooting leaks/making repairs on (all water line, waste lines, heating lines ,gas lines ETC) * installing new fixture such as (shower body's, faucets, sinks, vanity's, tollets, washer machines, dryers, dish washer, stoves, ice machines, pot fillers, outside hose spickets) * snaking all drain lines/camera examination (tub, sinks, showers, washer machine, liter lines, toilet lines, main house trap, condensate lines) * maintaining/installing new boilers for such(baseboard heat, radiant heat, steam heat, hot water) * Hot water heaters (tank hot water heaters, tankless hot water heaters) Instagram-all_purpose.corp Email- [email protected] Phone number 347-723-6547
"Fast. Efficient. Good price."
Michael C on November 2024
FAQs for water heater service projects in Mountainside, NJ
The average cost to install a new water heater is around $1,300, but you can expect to pay between $875 and $1,750, depending on the kind of water heater, the size of the unit, and the professional chosen to complete the work. Tankless water heaters can push your price higher, as installation is more complicated, with prices as high as $3,500. The location and accessibility of your water heater will play a role in the project cost, as those sitting in tight spaces like a crawl space will drive up your labor costs.
Tankless water heaters are more expensive than those with a storage tank, but they come with some impressive benefits that most homeowners find worth the higher investment. Most importantly, they provide unlimited hot water, so you’ll never run out like you would with a storage tank. Tankless heaters are also more efficient, so comparing gallon-for-gallon, you’ll spend less on hot water with a tankless heater. Tankless water heaters are also smaller, require less maintenance, and tend to last longer than storage tank water heaters.
It usually takes a professional water heater installer between two and three hours to remove an existing water heater and install a new tank heater. However, it could take four to five hours if they have to work in a small utility closet or another tight area, like a crawl space. Tankless water heaters have a more complicated installation process, so they will take a bit longer. Additionally, a gas water heater requires a connection to a gas line, and that alone can add about an hour to the installation timeline compared to installing an electric water heater.
It is very difficult and dangerous to install your own water heater, so we strongly recommend against tackling this as a DIY project. Not only will you need to wire your water heater, but you’ll also need to connect plumbing to the intake and outlet. Sweating copper pipes and connecting wiring properly are skills most DIYers don’t have, and even if you do feel confident you can do it, working with water and electricity always leaves the potential for electrocution. Hiring a local water heater installer is well worth the investment.
In most municipalities, a license is not mandatory for water heater installation or replacement. However, we strongly recommend hiring a licensed plumber or water heater installer to handle the work. Licensed installers are far less likely to make a mistake during the installation, which means paying for the experience decreases your risk of a leak and other issues. You can use our state licensing tool to find out if a contractor you’re considering in your area holds a plumber’s license.
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