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 Glendale

Avatar for Arcadia Air
Arcadia Air
17817 North 34th Way
4.64(
11
)
Approved Pro
Arcadia Air
17817 North 34th Way
4.64(
11
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
4 years of experience

We’re dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C and cooling systems as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Terrible techs lacking skills. They caused so much damage to my blower motor that i had to hire another company and spend another $1K on top of the original repair cost."

mehdi j on June 2025

We’re dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C and cooling systems as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Terrible techs lacking skills. They caused so much damage to my blower motor that i had to hire another company and spend another $1K on top of the original repair cost."

mehdi j on June 2025


Avatar for Bumble Bee Home Services - Plumbing
Bumble Bee Home Services - Plumbing
4410 West Union Hills Drive, Suite 7-141
4.72(
1,815
)
Approved Pro
Bumble Bee Home Services - Plumbing
4410 West Union Hills Drive, Suite 7-141
4.72(
1,815
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
580 local quotes requested

Bumble Bee Home Services is a fully licensed, bonded, and insured plumbing contractor in the state of Arizona. We provide both residential and commercial plumbing services to clients in and around the Glendale and Phoenix areas. Our record of providing exceptional plumbing service has earned our plumbing and drain company an A+ rating with the Better Business Bureau, as well as glowing reviews from customers. In fact, our customers believe we’re the best plumbers in Glendale and Phoenix because we always offer responsive, customer-focused service and first-class plumbing solutions. We back up this commitment to being the best plumbers in Glendale with a 100% customer satisfaction guarantee. Making and keeping our customers happy is how we’ve been successful at building our business on great referrals! We’re here for you, ready to provide top-notch, friendly service, along with exceptional workmanship and optimal value.

"I had an AC Tune up done today and my servíce technician was Jared Jensen. Jared was quick, thorough and very professional! The best part was my AC unit is working great. Thanks Jared & Bumble Bee!"

Lalo Z on June 2025

Bumble Bee Home Services is a fully licensed, bonded, and insured plumbing contractor in the state of Arizona. We provide both residential and commercial plumbing services to clients in and around the Glendale and Phoenix areas. Our record of providing exceptional plumbing service has earned our plumbing and drain company an A+ rating with the Better Business Bureau, as well as glowing reviews from customers. In fact, our customers believe we’re the best plumbers in Glendale and Phoenix because we always offer responsive, customer-focused service and first-class plumbing solutions. We back up this commitment to being the best plumbers in Glendale with a 100% customer satisfaction guarantee. Making and keeping our customers happy is how we’ve been successful at building our business on great referrals! We’re here for you, ready to provide top-notch, friendly service, along with exceptional workmanship and optimal value.

"I had an AC Tune up done today and my servíce technician was Jared Jensen. Jared was quick, thorough and very professional! The best part was my AC unit is working great. Thanks Jared & Bumble Bee!"

Lalo Z on June 2025


Avatar for Custom Plumbing of Arizona, LLC
Custom Plumbing of Arizona, LLC
2120 East Rose Garden Lane, Suite F1
4.53(
1,374
)
Approved Pro
Custom Plumbing of Arizona, LLC
2120 East Rose Garden Lane, Suite F1
4.53(
1,374
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
320 local quotes requested

Custom Plumbing of Arizona Rated #1: We are The Drain Whisperers, industry leader in sewer repair/replacement, offering trench-less technology. We are more than just a rooter company, we are experts in all facets of plumbing. Looking for a Plumbing company that isn't looking to make you laugh at their commercials then make you cry when you get the bill, use Custom Plumbing. We provide superior service at a fair and reasonable price. Custom Plumbing a family owned company and we treat our customers just like family * Ask about our apples to apples guarantee, we save our customers $100's to $1000's of dollars a day! A QC company (quality certified), plumbers are drug tested, background checked and have a minimum 5 years experience. Honest plumbers doing an honest job, you can trust Custom!! Although only one service man visits your home you can rest assured that there is a team of professionals behind our techs making sure the job gets done right the first time.

"Excellent work"

Harold T on June 2025

Custom Plumbing of Arizona Rated #1: We are The Drain Whisperers, industry leader in sewer repair/replacement, offering trench-less technology. We are more than just a rooter company, we are experts in all facets of plumbing. Looking for a Plumbing company that isn't looking to make you laugh at their commercials then make you cry when you get the bill, use Custom Plumbing. We provide superior service at a fair and reasonable price. Custom Plumbing a family owned company and we treat our customers just like family * Ask about our apples to apples guarantee, we save our customers $100's to $1000's of dollars a day! A QC company (quality certified), plumbers are drug tested, background checked and have a minimum 5 years experience. Honest plumbers doing an honest job, you can trust Custom!! Although only one service man visits your home you can rest assured that there is a team of professionals behind our techs making sure the job gets done right the first time.

"Excellent work"

Harold T on June 2025


Avatar for I Know A Guy Plumbing LLC
I Know A Guy Plumbing LLC
1250 North 102nd Way
New on HomeAdvisorNew on Angi
Approved Pro
I Know A Guy Plumbing LLC
1250 North 102nd Way
New on AngiNew on HomeAdvisor
Approved Pro
1 years of experience
Free onsite estimate

With over 10 years of experience, I take pride in my quality craftsmanship. We are owner operated, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We pride our company on reliability, great communication, integrity, and customer service. We are experts in our trade and will do our best to keep you as educated as we can on your particular project. Give us a call today! We look forward to working with you!

With over 10 years of experience, I take pride in my quality craftsmanship. We are owner operated, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We pride our company on reliability, great communication, integrity, and customer service. We are experts in our trade and will do our best to keep you as educated as we can on your particular project. Give us a call today! We look forward to working with you!


Avatar for Penntegrity Plumbing
Penntegrity Plumbing
450 N Longhorn Rd
5.00(
7
)
Approved Pro
Penntegrity Plumbing
450 N Longhorn Rd
5.00(
7
)
Approved Pro
Customers say: Quick response
9 years of experience
Free onsite estimate

Penntegrity Plumbing 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.

"Kenny did a wonderful job was here when he said very professional reasonably priced. They have a new customer in me."

Michelle B on May 2025

Penntegrity Plumbing 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.

"Kenny did a wonderful job was here when he said very professional reasonably priced. They have a new customer in me."

Michelle B on May 2025


Aquaco, LLC
8912 East Pinnacle Peak Road, Suite 287
4.98(
188
)
Approved Pro
Aquaco, LLC
8912 East Pinnacle Peak Road, Suite 287
4.98(
188
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
66 local quotes requested

We at Aquaco, LLC, focus on quality water treatment systems over quantity. We use our years of experience and expertise, completing your project to perfection. Customer service and honesty are the most important aspects of our business and your satisfaction is guaranteed. Please call us today! We look forward to working with you. Please Note: Company will not install new equipment from other national vendors.

"As a military family, we have had plenty of experiences in the past with services that didn?t quite live up to the hype. As a result, our trust in services have unfortunately diminished. We searched up water purification companies upon relocating to Arizona and came up with AquaCo. We were anxious at first but came to realize that it was such a great find! We?ve had the system for 2 years now and still get very impressed whenever we interact with Glen and Brandon. They communicate clearly and exude values like trust and commitment which does not come as often from businesses nowadays. When you speak with Glen, just don?t forget to ask about his impersonations. Lol. He may keep discussions light but the man never fails to deliver. We highly recommend!"

Aldwin d on June 2025

We at Aquaco, LLC, focus on quality water treatment systems over quantity. We use our years of experience and expertise, completing your project to perfection. Customer service and honesty are the most important aspects of our business and your satisfaction is guaranteed. Please call us today! We look forward to working with you. Please Note: Company will not install new equipment from other national vendors.

"As a military family, we have had plenty of experiences in the past with services that didn?t quite live up to the hype. As a result, our trust in services have unfortunately diminished. We searched up water purification companies upon relocating to Arizona and came up with AquaCo. We were anxious at first but came to realize that it was such a great find! We?ve had the system for 2 years now and still get very impressed whenever we interact with Glen and Brandon. They communicate clearly and exude values like trust and commitment which does not come as often from businesses nowadays. When you speak with Glen, just don?t forget to ask about his impersonations. Lol. He may keep discussions light but the man never fails to deliver. We highly recommend!"

Aldwin d on June 2025


Avatar for Z PLUMBERZ of East Valley
Z PLUMBERZ of East Valley
1528 W San Pedro St #2
5.00(
5
)
Approved Pro
Z PLUMBERZ of East Valley
1528 W San Pedro St #2
5.00(
5
)
Approved Pro
26 local quotes requested
18 years of experience

From a humble start in the Midwest, Z PLUMBERZ has exploded into a nationwide name defined by the trusted reputation of our prompt local plumbers, the exceptional quality of our customer service, and our emphasis on long-term solutions. We never take shortcuts or do quick fixes. Instead, we get to the heart of the problem, which helps ensure our results can stand the test of time. Plus, we provide proactive advice and take the time to educate our customers to help forestall the risk of plumbing issues in the future. We do things differently—because we’re plumbers who care. When it comes to plumbing, we do it all. We take pride in the work that we do and we love doing it. Whatever service you need, at any time of the day, Z PLUMBERZ is there when you need us most.

"Water RO System installed perfectly well by Alex"

Aman S on May 2025

From a humble start in the Midwest, Z PLUMBERZ has exploded into a nationwide name defined by the trusted reputation of our prompt local plumbers, the exceptional quality of our customer service, and our emphasis on long-term solutions. We never take shortcuts or do quick fixes. Instead, we get to the heart of the problem, which helps ensure our results can stand the test of time. Plus, we provide proactive advice and take the time to educate our customers to help forestall the risk of plumbing issues in the future. We do things differently—because we’re plumbers who care. When it comes to plumbing, we do it all. We take pride in the work that we do and we love doing it. Whatever service you need, at any time of the day, Z PLUMBERZ is there when you need us most.

"Water RO System installed perfectly well by Alex"

Aman S on May 2025


Avatar for Knockout Plumbing, LLC
Knockout Plumbing, LLC
Po Box 5034
5.00(
18
)
Approved Pro
Knockout Plumbing, LLC
Po Box 5034
5.00(
18
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 local quotes requested

Here at Knockout Plumbing we are a fully licensed, bonded, and insured plumbing company who works with residential and commercial clients. No plumbing job is out of our wheelhouse and we pride ourselves on our ability to keep everything running smoothly at a fair price.

"I called Knockout Plumbing in the evening and they returned my call first thing the following morning. They sent a technician out and he was here at 9 am. Very friendly and customer service was excellent! This company knows their stuff. We needed a whole new hot water heater and they replaced it at a low cost and very prompt. Thank you Knockout Plumbing for everything you do. I will always use your services."

Samantha Jean C on October 2023

Here at Knockout Plumbing we are a fully licensed, bonded, and insured plumbing company who works with residential and commercial clients. No plumbing job is out of our wheelhouse and we pride ourselves on our ability to keep everything running smoothly at a fair price.

"I called Knockout Plumbing in the evening and they returned my call first thing the following morning. They sent a technician out and he was here at 9 am. Very friendly and customer service was excellent! This company knows their stuff. We needed a whole new hot water heater and they replaced it at a low cost and very prompt. Thank you Knockout Plumbing for everything you do. I will always use your services."

Samantha Jean C on October 2023


Avatar for George Brazil Plumbing
George Brazil Plumbing
3830 S 38th St
4.50(
2
)
Approved Pro
George Brazil Plumbing
3830 S 38th St
4.50(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
23 local quotes requested

At George Brazil, we strive to provide the best and most comprehensive customer service experience you have ever had. One of the ways we do this is to go over with you our agenda card. We will explain to you, before we even begin to do any work what you can expect from us. This way we both know what is going to be done and in what stages. Nothing left to guess.

"everything and everybody were great. I was very happy I hired them."

henry s on April 2024

At George Brazil, we strive to provide the best and most comprehensive customer service experience you have ever had. One of the ways we do this is to go over with you our agenda card. We will explain to you, before we even begin to do any work what you can expect from us. This way we both know what is going to be done and in what stages. Nothing left to guess.

"everything and everybody were great. I was very happy I hired them."

henry s on April 2024


Avatar for Simple Plumbing Solutions, LLC
Simple Plumbing Solutions, LLC
18624 W Robin Ln
5.00(
3
)
Approved Pro
Simple Plumbing Solutions, LLC
18624 W Robin Ln
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

Simple Plumbing Solutions 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.

"Very happy with their service. Professional and courteous. Even though I added one other item to be fixed I was very pleased. I highly Recommend and will make them my go- to-plumber. Great Job!!"

Ronald R on March 2023

Simple Plumbing Solutions 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.

"Very happy with their service. Professional and courteous. Even though I added one other item to be fixed I was very pleased. I highly Recommend and will make them my go- to-plumber. Great Job!!"

Ronald R on March 2023

...
Showing 1-10 of 980

FAQs for tankless water heater installation projects in Glendale, AZ

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.