Top-rated tankless water heater repair pros.

Get matched with top tankless water heater repair pros in Peterborough, NH

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.

Top-Rated Tankless water heater repair pros in Peterborough - Updated Nov 2026

Avatar for Robert Johnson Plumbing
Robert Johnson Plumbing
5.0(
328
)
Tankless Water Heater - Repair

Serving Peterborough, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Customers say: True professional

"I had Rob install a tankless hot water heater, whole house water filter, and run a new gas line for my gas stove conversion. He was very professional and and was quick to set an appointment. The whole job took a single day and he even removed and disposed of the old outdated appliances. Quality work at reasonable prices! Would highly recommend."
Response time2 hrs
Response rate96%
38 neighbors recently requested a quote
Avatar for Heritage Home Service
Heritage Home Service
4.1(
1,337
)
Tankless Water Heater - Repair

Serving Peterborough, NH and surrounding areas

Approved (Corporate)

In business since 1988

Free estimates

Emergency services offered

"Everyone I dealt with was very professional. I found this company to be very expensive. I had them complete a smaller job and hired someone else to install a hot water heater due to their cost."
Grand opening of new location
Team breakfast
Events
Billy working hard
Golf tournament

+29

Response time5 hrs
351 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for County Line Plumbing and Heating
County Line Plumbing and Heating
5.0(
11
)
Tankless Water Heater - Repair

Serving Peterborough, NH and surrounding areas

In business since 2019

Free estimates

Credit card accepted

"Justin at County Line Plumbing and heating came out shortly after I called the office. Due to my leaking 50 gallon water heater started leaking! He added the situation and installed a new Rinnai on demand water heater later that day!!! Not only was the price fair, but he explained everything every step of the way! Highly recommend 10 out of 10"
Photo 1
Photo 2
Recommended by18%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Tankless Water Heater - Repair

Serving Peterborough, NH and surrounding areas

In business since 1971

Credit card accepted

"Service guy came as scheduled. Sent his "service" requirements to home base Home base calls back and lists, a very long list of what needs to be done and a very long list of what is not covered and what each item costs. The overall cost was outrageous and they weren't willing to give it to me in writing. Everything I had to pay for was overpriced, of course! They told me my other option would be to purchase my own water heater and they would reimburse me for what there water heater would cost, but no reimbursement for Labor, building permit, or any upgrades required by the local building department. The requirements of the building department were minimal. I went to Home Depot and had them do the installation and saved many hundreds of dollars. Lesson learned, have AHS do simpler repairs that don't require municipal building department approval. Have AHS pay for the equipment, and purchase installation from a trusted local installer."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by65%of homeowners
Avatar for New England Home Renovations LLC
New England Home Renovations LLC
4.0(
311
)
Tankless Water Heater - Repair

Serving Peterborough, NH and surrounding areas

In business since 1983

Free estimates

Emergency services offered

"Woke up on a Tuesday morning, just happened to go downstairs to get some dog food. Squish, squish under my feet! Open the garage door, water everywhere with a hole in the side of my water heater, water pouring out! Turned off water, grabbed my phone and texted Richard at NE Renovations (this was before 7:30 in the morning). Got an immediate reply saying they could be there later that same morning, and told me what to do in the meantime. Jim (a wonderful plummer at NE Renovations), called around to find the water heater we needed, as it vents outside. By mid-afternoon, we were back up and running. Jim even helped clean up some of the water in the garage! I've written about these guys before and continue to have only great experiences. I only talked to them by phone that day and once again, trusted them to enter my home while the rest of us were at work. Pretty much no interruption to a busy day. I don't think that could have happened with another provider. These guys are top notch and really know their stuff. Couldn't recommend them more highly!"
Before
After's
New boiler install
Removal of cast Iron to PVC.
Additional Photos

+37

Recommended by89%of homeowners
Avatar for Queen City Remodeling  & More LLC
Queen City Remodeling & More LLC
3.2(
81
)
Tankless Water Heater - Repair

Serving Peterborough, NH and surrounding areas

In business since 1992

Free estimates

Emergency services offered

Queen City Remodeling is a full service remodeling and renovation company. Our projects range from minor home repairs to major renovations & room additions and design build services. Regardless of size Queen City Remodeling will help you from the initial meeting to the final completion of your project. Queen City Remodeling has a renowned reputation for prompt courtesy service and quality craftsmanship all at a fair price & on-time completion. Our mission - Queen City Remodeling & More LLC, provides our customers, personnel and vendors with top notch professionalism in the remodeling industry. We are cutting edge using quality products and workmanship delivered on time, with fair pricing and excellent service to our customers.

New REWX Transend Deck
New Hidden Fastening System
Additional Photos
Recommended by63%of homeowners
Showing 1-10 of 13