Top-rated tankless water heater repair pros.

Get matched with top tankless water heater repair pros 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 repair pros in West Mifflin

Freedom Contracting And Excavating, LLC
343 Walker Road
5.00(
3
)
Approved Pro
Freedom Contracting And Excavating, LLC
343 Walker Road
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

Freedom Contracting And Excavating LLC is 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.

"Dave and AJ from Freedom Contracting & Excavating did a great job for a reasonable price. I had an idea for an outdoor griddle setup using natural gas instead of propane tanks. I thought it was a long shot but they were able to make it happen. Very courteous and straight forward. They even went above and beyond by helping me with the natural gas conversion on my griddle. I would definitely hire them again and if you need any gas line work done, call Freedom C & E for sure! Thanks again!"

Robert N on November 2022

Freedom Contracting And Excavating LLC is 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.

"Dave and AJ from Freedom Contracting & Excavating did a great job for a reasonable price. I had an idea for an outdoor griddle setup using natural gas instead of propane tanks. I thought it was a long shot but they were able to make it happen. Very courteous and straight forward. They even went above and beyond by helping me with the natural gas conversion on my griddle. I would definitely hire them again and if you need any gas line work done, call Freedom C & E for sure! Thanks again!"

Robert N on November 2022


A & J Contracting Company, LLC
118 Foxtail Drive
5.00(
21
)
Approved Pro
A & J Contracting Company, LLC
118 Foxtail Drive
5.00(
21
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
30 years of experience

A & J Contracting Company, LLC is Pittsburgh's premier professional home improvement company operating as general and specialty contractors in the finish and rough carpentry industry. We are most famous for the beautiful custom kitchen and bathrooms we design and remodel for both our residential and commercial clients. You will find that we are a dedicated small business enterprise committed to providing quality construction services and on time service delivery within budget. Please call us today to schedule your appointment with Pittsburgh's true professionals. Your satisfaction is our guarantee.

"I donâ  t know where to begin to say how satisfied I am with A & J Contracting! I needed my basement renovated ASAP and Mr. Anthony met with me in a timely manner explaining in great detail the work he would perform and how pleased I would be! Let me tell you he did NOT disappoint because he and his partner Mark performed what I call a â  miracleâ  in renovating my basement and went above and beyond my expectations!!!! Iâ  ve shown many the before and after pictures of what I now can call my family room and the response each time was how â  beautifulâ  of a job Anthony did!! If you are in need a great contractor donâ  t look anywhere else but A & J Contractor and call Anthony NOW! My family still canâ  t believe what A & J Contractor did with that old and in bad shape basement!! Very professional and the many years of experience really was on display!! Thank you again Anthony and Mark for restoring our basement!! Iâ  ll definitely be utilizing them in the future and wonâ  t have to look elsewhere!!"

Steven K on May 2021

A & J Contracting Company, LLC is Pittsburgh's premier professional home improvement company operating as general and specialty contractors in the finish and rough carpentry industry. We are most famous for the beautiful custom kitchen and bathrooms we design and remodel for both our residential and commercial clients. You will find that we are a dedicated small business enterprise committed to providing quality construction services and on time service delivery within budget. Please call us today to schedule your appointment with Pittsburgh's true professionals. Your satisfaction is our guarantee.

"I donâ  t know where to begin to say how satisfied I am with A & J Contracting! I needed my basement renovated ASAP and Mr. Anthony met with me in a timely manner explaining in great detail the work he would perform and how pleased I would be! Let me tell you he did NOT disappoint because he and his partner Mark performed what I call a â  miracleâ  in renovating my basement and went above and beyond my expectations!!!! Iâ  ve shown many the before and after pictures of what I now can call my family room and the response each time was how â  beautifulâ  of a job Anthony did!! If you are in need a great contractor donâ  t look anywhere else but A & J Contractor and call Anthony NOW! My family still canâ  t believe what A & J Contractor did with that old and in bad shape basement!! Very professional and the many years of experience really was on display!! Thank you again Anthony and Mark for restoring our basement!! Iâ  ll definitely be utilizing them in the future and wonâ  t have to look elsewhere!!"

Steven K on May 2021


Avatar for Kachurick Plumbing, LLC
Kachurick Plumbing, LLC
PO Box 13
4.89(
9
)
Approved Pro
Kachurick Plumbing, LLC
PO Box 13
4.89(
9
)
Approved Pro
2 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!

"Love, love, him! Honest, reliable and affordable."

Mildred O on March 2025

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!

"Love, love, him! Honest, reliable and affordable."

Mildred O on March 2025


Avatar for Jacob Heating and Cooling
Jacob Heating and Cooling
1394 Frey Rd
4.76(
27
)
Approved Pro
Jacob Heating and Cooling
1394 Frey Rd
4.76(
27
)
Approved Pro
Customers say: True professional
14 years of experience
Free onsite estimate

Here at Jacob Heating and Cooling, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Repairs done"

Harry M on November 2024

Here at Jacob Heating and Cooling, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Repairs done"

Harry M on November 2024


Avatar for Reliant Gas Lines LLC
Reliant Gas Lines LLC
253 Russellton Dorseyville Rd
5.00(
16
)
Approved Pro
Reliant Gas Lines LLC
253 Russellton Dorseyville Rd
5.00(
16
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
46 local quotes requested

Reliant gas lines is a natural gas service line repair or replacement company. I handle the buried portion of the service line from curb stop to meter and the buried house line if the meter is far away from the house. I do a good job at a fair price, am qualified for both Peoples Gas and Columbia Gas and fully insured. As a small owner operator business I can be flexible on scheduling as these types of problems tend to be emergencies. While in business for myself just a short time now I have over 15 years of experience in the natural gas industry involving repair and replacement of gas mains and service lines.

"Reliant Gas Lines arrived at my house quickly. They made all the repairs fast and efficiently. Matt and his crew were very respectful of me and my property. I would not hesitate to hire them again. Very highly recommended."

Kerry B on April 2025

Reliant gas lines is a natural gas service line repair or replacement company. I handle the buried portion of the service line from curb stop to meter and the buried house line if the meter is far away from the house. I do a good job at a fair price, am qualified for both Peoples Gas and Columbia Gas and fully insured. As a small owner operator business I can be flexible on scheduling as these types of problems tend to be emergencies. While in business for myself just a short time now I have over 15 years of experience in the natural gas industry involving repair and replacement of gas mains and service lines.

"Reliant Gas Lines arrived at my house quickly. They made all the repairs fast and efficiently. Matt and his crew were very respectful of me and my property. I would not hesitate to hire them again. Very highly recommended."

Kerry B on April 2025


Bathroom Solutions LLC
959 Girard Rd
4.24(
88
)
Approved Pro
Bathroom Solutions LLC
959 Girard Rd
4.24(
88
)
Approved Pro
Customers say: Quality work
87 local quotes requested
23 years of experience

We're a small company who specializes in bathroom remodeling. We perform complete remodels (wiring, plumbing, plaster , etc.), custom showers, custom glass enclosures, and small jobs as well. We also remodel kitchens and game rooms, and perform general interior remodeling, including structural modifications. We do not have a showroom, but rather extend our pricing at several specialized suppliers. This provides our customers with the broadest selection possible, the assistance of dedicated designers, the use of their showrooms, and great pricing. We routinely work on both older and newer homes, and welcome the challenges of unusual and custom projects.

"We had two extensive bathroom renovations done. They did a superior job. Mike Emanuel is an extremely nice guy, very professional and very knowledgeable. He is completely reliable and honest. Work was done with superior quality. Adam is an artist and perfectionist. He did fabulous work with doing marble work. We would recommend them enthusiastically and unconditionally."

SUSAN F on March 2019

We're a small company who specializes in bathroom remodeling. We perform complete remodels (wiring, plumbing, plaster , etc.), custom showers, custom glass enclosures, and small jobs as well. We also remodel kitchens and game rooms, and perform general interior remodeling, including structural modifications. We do not have a showroom, but rather extend our pricing at several specialized suppliers. This provides our customers with the broadest selection possible, the assistance of dedicated designers, the use of their showrooms, and great pricing. We routinely work on both older and newer homes, and welcome the challenges of unusual and custom projects.

"We had two extensive bathroom renovations done. They did a superior job. Mike Emanuel is an extremely nice guy, very professional and very knowledgeable. He is completely reliable and honest. Work was done with superior quality. Adam is an artist and perfectionist. He did fabulous work with doing marble work. We would recommend them enthusiastically and unconditionally."

SUSAN F on March 2019


Avatar for Bath Pro of Western PA
Bath Pro of Western PA
375 Carol Ave
4.99(
68
)
Approved Pro
Bath Pro of Western PA
375 Carol Ave
4.99(
68
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
280 local quotes requested

Bath Pro of Western PA is a bathroom remodeling company offering services throughout Western Pennsylvania. We can do anything from simply replacing or updating your shower or bathtub to full bathroom remodels, including flooring, sinks and vanities, walls, toilets, medicine cabinets and lighting. For those who have difficulties getting into and out of the tub, we can provide walk-in showers and tubs for easier and safer access. We strive to provide our customers with the best service, which includes quality products and affordable prices. While other remodeling companies may offer higher priced services and bring them down using discounts and negotiation techniques to appear you are getting a great price, we offer the lowest prices for the best products available. We are able to do so by operating as a family-run business without sub-contractors and only using certified, experienced, trustworthy installers. We are also fully insured. We have over 35 years of experience in the home remodeling industry. By choosing Bath Pro of Western PA, you can trust that you are in good hands that will provide the best quality service in the area. And you can always be sure that......."We’ll treat you like FAMILY, because we ARE one!" Website- www.bathprowpa.com Facebook- Bath Pro of Western PA Instagram- bathprowpa Twitter- @bathprowpa

"ALL stated work to be completed was done from the floor and room covering and for Debre protection to the daily cleanup. There work was very neat and professionally done . This project was a complete bathroom makeover which included moving walls, installing new plumbing, new toilet, shower, vanity, lighting, new baseboard and doorway trim, plastering, painting, flooring, and ALL new matching hardware. Painting included closet door, entry door, walls, and ceiling. Job was completed in the amount of time promised, NO SHORT CUTS TAKEN!!!!!"

Floyd T on April 2025

Bath Pro of Western PA is a bathroom remodeling company offering services throughout Western Pennsylvania. We can do anything from simply replacing or updating your shower or bathtub to full bathroom remodels, including flooring, sinks and vanities, walls, toilets, medicine cabinets and lighting. For those who have difficulties getting into and out of the tub, we can provide walk-in showers and tubs for easier and safer access. We strive to provide our customers with the best service, which includes quality products and affordable prices. While other remodeling companies may offer higher priced services and bring them down using discounts and negotiation techniques to appear you are getting a great price, we offer the lowest prices for the best products available. We are able to do so by operating as a family-run business without sub-contractors and only using certified, experienced, trustworthy installers. We are also fully insured. We have over 35 years of experience in the home remodeling industry. By choosing Bath Pro of Western PA, you can trust that you are in good hands that will provide the best quality service in the area. And you can always be sure that......."We’ll treat you like FAMILY, because we ARE one!" Website- www.bathprowpa.com Facebook- Bath Pro of Western PA Instagram- bathprowpa Twitter- @bathprowpa

"ALL stated work to be completed was done from the floor and room covering and for Debre protection to the daily cleanup. There work was very neat and professionally done . This project was a complete bathroom makeover which included moving walls, installing new plumbing, new toilet, shower, vanity, lighting, new baseboard and doorway trim, plastering, painting, flooring, and ALL new matching hardware. Painting included closet door, entry door, walls, and ceiling. Job was completed in the amount of time promised, NO SHORT CUTS TAKEN!!!!!"

Floyd T on April 2025


Avatar for Three Rivers Remodeling LLC.
Three Rivers Remodeling LLC.
1149 School Road
4.76(
17
)
Approved Pro
Three Rivers Remodeling LLC.
1149 School Road
4.76(
17
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
712 local quotes requested

We are a small locally owned and operated remodeling business located in Apollo Pa, We do all size jobs from monor repairs to major over hauls I have been doing this work for 22 years and enjoy what I do. Our prices are very competitive because we are a smaller business un like those huge chain remodeling companies who just want to rob you of your hard earned money. we are dependable, clean, and get all jobs done in a timely manner.We are certified in lead paint removal for those older homes around the Burg. We proudly serve Pittsburgh and surrounding areas

"Excellent work; very thorough and meticulous. Cleaned up their work at the end of each day. Very happy with the results."

Sharon P on March 2025

We are a small locally owned and operated remodeling business located in Apollo Pa, We do all size jobs from monor repairs to major over hauls I have been doing this work for 22 years and enjoy what I do. Our prices are very competitive because we are a smaller business un like those huge chain remodeling companies who just want to rob you of your hard earned money. we are dependable, clean, and get all jobs done in a timely manner.We are certified in lead paint removal for those older homes around the Burg. We proudly serve Pittsburgh and surrounding areas

"Excellent work; very thorough and meticulous. Cleaned up their work at the end of each day. Very happy with the results."

Sharon P on March 2025


Avatar for Tri County Kitchens
Tri County Kitchens
301 Brinton Ave.
4.81(
83
)
Approved Pro
Tri County Kitchens
301 Brinton Ave.
4.81(
83
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
420 local quotes requested

Kitchen cabinet sales & design. Specializing in problem kitchens and unique designs. Refacing of existing cabinets in wood and Laminate, countertops, sinks, faucets, appliances, flooring and complete bathroom renovations. In house Installers and Free financing available. WWW.TRICOUNTYKITCHENS.COM

"Multi-time returning customer of Tri County Kitchens Inc. Few little kitchen update projects previously completed with them. Now we just completed our 2nd full kitchen renovation with Todd and his team. My wife and I are very cautious when hiring people to come work at our home. We are careful and decisive during the process to choose the professionals we decide upon. That being said... Todd and his crew are always 1st class to interact with. Courteous to converse with during the planning period. Happy to answer questions regarding materials, products, and the design that was best for our home. Detailed and itemized quote followed. Thorough plan of action was written out as well. The results have revamped the look of our home. As neighbors and friends and family do... they want to know who did the work and are we happy with the company who did the work. Yes, were are tremendously pleased. Happy to pass along their contact information so they too can utilize Todd and his team. Proud to have had Tri County Kitchens Inc take care of us, yet again"

Jonathan L on August 2022

Kitchen cabinet sales & design. Specializing in problem kitchens and unique designs. Refacing of existing cabinets in wood and Laminate, countertops, sinks, faucets, appliances, flooring and complete bathroom renovations. In house Installers and Free financing available. WWW.TRICOUNTYKITCHENS.COM

"Multi-time returning customer of Tri County Kitchens Inc. Few little kitchen update projects previously completed with them. Now we just completed our 2nd full kitchen renovation with Todd and his team. My wife and I are very cautious when hiring people to come work at our home. We are careful and decisive during the process to choose the professionals we decide upon. That being said... Todd and his crew are always 1st class to interact with. Courteous to converse with during the planning period. Happy to answer questions regarding materials, products, and the design that was best for our home. Detailed and itemized quote followed. Thorough plan of action was written out as well. The results have revamped the look of our home. As neighbors and friends and family do... they want to know who did the work and are we happy with the company who did the work. Yes, were are tremendously pleased. Happy to pass along their contact information so they too can utilize Todd and his team. Proud to have had Tri County Kitchens Inc take care of us, yet again"

Jonathan L on August 2022


BNQ Inc
1226 Milan Ave
4.56(
63
)
Approved Pro
BNQ Inc
1226 Milan Ave
4.56(
63
)
Approved Pro
Customers say: Quality work
543 local quotes requested
18 years of experience

We are an interior remodeling company specializing in kitchens and bathrooms. We have many years of personal experience providing Pittsburgh residents with quality products and installation. We are a family based business, which means our employees are dedicated to doing quality work in a timely fashion at very competitive prices. We are licensed with the state as HRC #037880. Fully insured. PLEASE EMAIL ME DIRECTLY: Carmen.bnq@verizon.net

"We hired Carmen to finish our basement in our house and we gave him just skeleton ideas of what we wanted. I'm glad we let him run with it because we couldn't be happier. Carmen is incredibly professional, talented and creative. I think what's not often talked about with contractors is how they treat their clients and Carmen is the most personable guy we've ever worked with. He was always cognizant of us working from home and was always accessible for questions both before, during and now after the job. We look forward to him doing our master bath next. We wouldn't hire anyone else to do kitchen, bath or basement work. Can't say much other than the completed job is above and beyond what we expected!"

Verle H on April 2024

We are an interior remodeling company specializing in kitchens and bathrooms. We have many years of personal experience providing Pittsburgh residents with quality products and installation. We are a family based business, which means our employees are dedicated to doing quality work in a timely fashion at very competitive prices. We are licensed with the state as HRC #037880. Fully insured. PLEASE EMAIL ME DIRECTLY: Carmen.bnq@verizon.net

"We hired Carmen to finish our basement in our house and we gave him just skeleton ideas of what we wanted. I'm glad we let him run with it because we couldn't be happier. Carmen is incredibly professional, talented and creative. I think what's not often talked about with contractors is how they treat their clients and Carmen is the most personable guy we've ever worked with. He was always cognizant of us working from home and was always accessible for questions both before, during and now after the job. We look forward to him doing our master bath next. We wouldn't hire anyone else to do kitchen, bath or basement work. Can't say much other than the completed job is above and beyond what we expected!"

Verle H on April 2024

...
Showing 1-10 of 957

Tankless water heater installations FAQs

Professional flushing services for tankless water heaters run about $200 per visit. This essential maintenance procedure eliminates mineral deposits from critical components, particularly the heat exchanger. While homeowners can purchase DIY flushing kits for $50 to $100, professional service offers the advantage of thorough cleaning with proper techniques. Professional maintenance also includes inspection of additional components that might need attention.

Industry experts and manufacturers recommend annual maintenance for tankless water heaters, with more frequent service (every six months) for homes with challenging water conditions. This regular attention prevents efficiency losses and extends the unit's operational lifespan. Watch for warning signs like reduced water temperature, inconsistent performance, or system error codes that might indicate maintenance is needed sooner than scheduled.

Neglecting regular maintenance allows mineral scale to accumulate within your system, restricting water flow and reducing heating efficiency. This forces your unit to work harder, consuming more energy while delivering less satisfactory performance. Over time, this strain can lead to component failures, inconsistent water temperatures, and premature system replacement. Additionally, most manufacturers require documentation of regular maintenance to honor warranty coverage for major components.

Share project details to get started.