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 Lowell

Avatar for D Day Plumbing
D Day Plumbing
39 Melrose Street
4.96(
38
)
Approved Pro
D Day Plumbing
39 Melrose Street
4.96(
38
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 years of experience

- Closely follow the average True Cost Rate furnished on the Homeowners section of Home Advisor for labor costs - Show up on time and give up front estimates - Focus on service work and limited multi-day projects so my schedule remains fluid - Advocate on the customer's behalf shopping for best prices on quality materials and best practices to get jobs done to code at the best rate possible

"We had an issue with a Dry Well periodically backing up. Damian and the D Day Plumbing team were very professional and knowledgeable and provided an estimate with a couple different options and their related costs. They installed a new utility sink, sink pump, and needed piping and valves with tie ins to the main septic. They made improvement above and beyond the initial job breakdown, all the while staying within budget. I will certainly consider them again for any future work. Thank you Damian and the D Day Plumbing Team for a job very done!"

Jim K on July 2024

- Closely follow the average True Cost Rate furnished on the Homeowners section of Home Advisor for labor costs - Show up on time and give up front estimates - Focus on service work and limited multi-day projects so my schedule remains fluid - Advocate on the customer's behalf shopping for best prices on quality materials and best practices to get jobs done to code at the best rate possible

"We had an issue with a Dry Well periodically backing up. Damian and the D Day Plumbing team were very professional and knowledgeable and provided an estimate with a couple different options and their related costs. They installed a new utility sink, sink pump, and needed piping and valves with tie ins to the main septic. They made improvement above and beyond the initial job breakdown, all the while staying within budget. I will certainly consider them again for any future work. Thank you Damian and the D Day Plumbing Team for a job very done!"

Jim K on July 2024


Avatar for Mouradian Plumbing & Heating
Mouradian Plumbing & Heating
32 Prentiss Road, Suite 204
4.99(
40
)
Approved Pro
Mouradian Plumbing & Heating
32 Prentiss Road, Suite 204
4.99(
40
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 local quotes requested

At Mouradian Plumbing & Heating, we take great pride in our experience, expertise, quality and the customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality. I look forward to working with you.

"Very good job and competitive price. Eric is also very approachable and knowledgeable. Would hire them again!"

Stella C on October 2024

At Mouradian Plumbing & Heating, we take great pride in our experience, expertise, quality and the customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality. I look forward to working with you.

"Very good job and competitive price. Eric is also very approachable and knowledgeable. Would hire them again!"

Stella C on October 2024


Doug Anderson Plumbing & Heating
1 Poplar Lane
4.92(
29
)
Approved Pro
Doug Anderson Plumbing & Heating
1 Poplar Lane
4.92(
29
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

Customer service and honesty are the most important aspects of our business and your satisfaction is always guaranteed. Please call us today for an estimate. We look forward to working with you.

"I needed 2 backflow preventers replaced , a water heater repaired and a to0ilet repaired. I had a quote from a very famous local plumbing/heating company for $4000! I called Doug for a second opinion and he came in at HALF the price!! and that was AFTER I showed him the first quote! He didn't seem surprised at all about the first quote. Not only was he half the price but he pointed out that my 6 year warranty on my water heater had 6 months left and said I could get a new one thru that warranty for $100!!! He took care of going thru the company getting me the new heater. He completed the job in a few hours. I will NEVER call another plumber again! My recommendation is to run, not walk, to get Doug for your needs. On top of that he is so very nice. I would give 10 stars if I could."

Joanne M on November 2019

Customer service and honesty are the most important aspects of our business and your satisfaction is always guaranteed. Please call us today for an estimate. We look forward to working with you.

"I needed 2 backflow preventers replaced , a water heater repaired and a to0ilet repaired. I had a quote from a very famous local plumbing/heating company for $4000! I called Doug for a second opinion and he came in at HALF the price!! and that was AFTER I showed him the first quote! He didn't seem surprised at all about the first quote. Not only was he half the price but he pointed out that my 6 year warranty on my water heater had 6 months left and said I could get a new one thru that warranty for $100!!! He took care of going thru the company getting me the new heater. He completed the job in a few hours. I will NEVER call another plumber again! My recommendation is to run, not walk, to get Doug for your needs. On top of that he is so very nice. I would give 10 stars if I could."

Joanne M on November 2019


Avatar for Prestige Heating & Cooling
Prestige Heating & Cooling
15 Mcgrath Rd
4.96(
12
)
Approved Pro
Prestige Heating & Cooling
15 Mcgrath Rd
4.96(
12
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
8 years of experience

Prestige Heating & Cooling, LLC, is a family owned and operated business that specializes in central A/C service and full installations of central A/C units. Heading into the fall, we will be taking on clients for heating and furnace systems. We are dedicated to providing our clients with the very best in installation, service and repair, and guarantee your satisfaction. Call us today!

"It was a good deal for routine service"

ajay m on October 2023

Prestige Heating & Cooling, LLC, is a family owned and operated business that specializes in central A/C service and full installations of central A/C units. Heading into the fall, we will be taking on clients for heating and furnace systems. We are dedicated to providing our clients with the very best in installation, service and repair, and guarantee your satisfaction. Call us today!

"It was a good deal for routine service"

ajay m on October 2023


Avatar for Renfor Plumbing
Renfor Plumbing
100 River St Apt 2R
New on HomeAdvisorNew on Angi
Approved Pro
Renfor Plumbing
100 River St Apt 2R
New on AngiNew on HomeAdvisor
Approved Pro
3 years of experience
Free onsite estimate

Renfor Plumbing, We take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

Renfor Plumbing, We take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.


Avatar for Peaches Plumbing LLC
Peaches Plumbing LLC
29 Lipsky Way
5.00(
5
)
Approved Pro
Peaches Plumbing LLC
29 Lipsky Way
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

Peaches Plumbing LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"Came out Sunday morning after a huge freeze to locate and repair a burst pipe. Very reliable and always picks up."

Mike A on December 2023

Peaches Plumbing LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"Came out Sunday morning after a huge freeze to locate and repair a burst pipe. Very reliable and always picks up."

Mike A on December 2023


Avatar for Super Service Today, Inc.
Super Service Today, Inc.
4 Jewell Drive, #6
4.31(
284
)
Approved Pro
Super Service Today, Inc.
4 Jewell Drive, #6
4.31(
284
)
Approved Pro
Customers say: True professional
90 local quotes requested
12 years of experience

We take the time to really listen and understand your goals and needs to make sure you are fully satisfied with the service you receive. Our service experts are trained to offer long term solutions that will best work for you and your family. We are a family owned and locally operated company serving Middlesex County, Essex County, Suffolk County and surrounding communities. Super Service Today, Inc. specializes in all aspects of plumbing, gas work, residential heating, drain cleaning, sewer repairs and main water service relays. We are available to assist you with all of your plumbing requirements from faucet installs to sewer replacements. We are solution experts that you only need to call once. Give us a call today to see how we can help you with all of your plumbing needs

"Quick response and good service. Price is reasonable."

Jing Z on March 2025

We take the time to really listen and understand your goals and needs to make sure you are fully satisfied with the service you receive. Our service experts are trained to offer long term solutions that will best work for you and your family. We are a family owned and locally operated company serving Middlesex County, Essex County, Suffolk County and surrounding communities. Super Service Today, Inc. specializes in all aspects of plumbing, gas work, residential heating, drain cleaning, sewer repairs and main water service relays. We are available to assist you with all of your plumbing requirements from faucet installs to sewer replacements. We are solution experts that you only need to call once. Give us a call today to see how we can help you with all of your plumbing needs

"Quick response and good service. Price is reasonable."

Jing Z on March 2025


M.A. Paone Plumbing & Heating
429 Watertown St, Ste 201
4.65(
421
)
Approved Pro
M.A. Paone Plumbing & Heating
429 Watertown St, Ste 201
4.65(
421
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
24 local quotes requested

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"Michael is the BEST! No mansplaining and he patiently answered an abundance of my questions offering flexibility in solutions. He is knowledgable, quick and had the best rate. I am so appreciative! Thank you!"

Elyse G on March 2025

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"Michael is the BEST! No mansplaining and he patiently answered an abundance of my questions offering flexibility in solutions. He is knowledgable, quick and had the best rate. I am so appreciative! Thank you!"

Elyse G on March 2025


Mystic Valley Home Services
103 Gray St
4.90(
10
)
Approved Pro
Mystic Valley Home Services
103 Gray St
4.90(
10
)
Approved Pro
Super Service Award
Customers say: Quick response
16 local quotes requested
2 years of experience

Mystic Valley Home Services is a local, family-owned and operated business specialized in residential plumbing, heating, drain cleaning, and energy conservation. Founded in Arlington, we take pride in our status as a 5 star/same day service business in our community. Our licensed service technicians are available 24/7 to provide you with multiple options to choose from to fit your budget. We’re committed to providing the highest level of customer service and satisfaction. Contact us today to learn more about how we can help you with your plumbing and heating needs.

"Rafael showed very good skills! He inspected all possible areas and fixed the issue with the bathtub draining. I'm really satisfied with the service. Thanks, Mystic Valley Home Services! Adriano"

Adriano M on October 2024

Mystic Valley Home Services is a local, family-owned and operated business specialized in residential plumbing, heating, drain cleaning, and energy conservation. Founded in Arlington, we take pride in our status as a 5 star/same day service business in our community. Our licensed service technicians are available 24/7 to provide you with multiple options to choose from to fit your budget. We’re committed to providing the highest level of customer service and satisfaction. Contact us today to learn more about how we can help you with your plumbing and heating needs.

"Rafael showed very good skills! He inspected all possible areas and fixed the issue with the bathtub draining. I'm really satisfied with the service. Thanks, Mystic Valley Home Services! Adriano"

Adriano M on October 2024


Avatar for Minuteman
Minuteman
100 Garden St.
5.00(
8
)
Approved Pro
Minuteman
100 Garden St.
5.00(
8
)
Approved Pro
Customers say: Quick response
1 years of experience
Free onsite estimate

As a veteran-owned family business with a commitment to excellence, we offer punctual, high-quality water heater installation, water heater repair, and water heater maintenance in Boston and surrounding areas. Backed by our 15+ years of experience, expertise, & personalized guidance, we ensure informed decisions and efficient installations while prioritizing your satisfaction. With warranties on labor and parts, along with a 100% customer satisfaction guarantee, our fully equipped trucks and skilled technicians are ready to handle any water heater service promptly and professionally. Contact us today for reliable service you can trust!

"I had to replace my furnace noting a high carbon monoxide reading by National Grid emanating from the furnace. Issue came about on a Friday...MInuteman was at my house on Monday morning replacing my old furnace. They were responsive on the phone on that Friday, they ordered the new furnace and had it installed that Monday. Kudos to Aaron and the team in getting this completed in a timely manner. I would highly recommend Minuteman Plumbing and Heating! "

John V on January 2025

As a veteran-owned family business with a commitment to excellence, we offer punctual, high-quality water heater installation, water heater repair, and water heater maintenance in Boston and surrounding areas. Backed by our 15+ years of experience, expertise, & personalized guidance, we ensure informed decisions and efficient installations while prioritizing your satisfaction. With warranties on labor and parts, along with a 100% customer satisfaction guarantee, our fully equipped trucks and skilled technicians are ready to handle any water heater service promptly and professionally. Contact us today for reliable service you can trust!

"I had to replace my furnace noting a high carbon monoxide reading by National Grid emanating from the furnace. Issue came about on a Friday...MInuteman was at my house on Monday morning replacing my old furnace. They were responsive on the phone on that Friday, they ordered the new furnace and had it installed that Monday. Kudos to Aaron and the team in getting this completed in a timely manner. I would highly recommend Minuteman Plumbing and Heating! "

John V on January 2025

...
Showing 1-10 of 919

Tankless water heater installations FAQs

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 homeowners guide to tankless water heater installations
From average costs to expert advice, get all the answers you need to get your job done.
Beautiful large white bathroom
Apr 30, 2025
Apr 30, 2025
Budget for walk-in bathtub costs based on factors such as bathtub type, labor, plumbing and electrical work, additional accessibility features, and more.
marble kitchen counter with gold faucet
Apr 28, 2025
Apr 28, 2025
Explore the average cost to replace a kitchen faucet with a professional plumber based on factors like faucet type, features, labor, and unexpected costs.
Toilet and bidet in bathroom
Apr 28, 2025
Apr 28, 2025
Use this guide to budget for bidet installation costs based on factors such as bidet type, attachments, features, parts, labor, and more.
plumber installing sewer main pipes in the ground
Apr 25, 2025
Apr 25, 2025
Understand what goes into installing a sewer line, including materials, labor, permits, and potential landscaping considerations, to ensure a smooth and compliant connection to your local sewer system.
water main being repaired by plumbers
Apr 24, 2025
Apr 24, 2025
Main water line leak repair costs depend on how much of the line needs repair and other factors. Learn what influences the price before you take on this project.
A glass shower cabin in a spacious bathroom
Apr 23, 2025
Apr 23, 2025
In this guide, we'll break down the factors that influence shower installation costs, so you can make informed decisions and achieve the bathroom of your dreams.
Share project details to get started.