Tankless Water Heater Installation and Repair

Tired of running out of hot water in the middle of your morning shower? When you install a tankless water heater in your home, the hot water is endless. At McAllister Plumbing, Heating & Cooling, our expert plumbers can swap out your old, traditional water heater for an upgrade that makes long soaks and showers part of your day-to-day life.

Whether you need a new water heater or tankless water heater repair, our team is always equipped to help. The experienced plumbers on our team can diagnose and repair your system or put in a new one, typically in one day.

Call McAllister today for reliable tankless water heater services in the Southtowns!

Why Choose McAllister for Tankless Water Heater Services?

With more than 60 years of experience, the McAllister team knows how to handle a broken water heater. Our customers continue to come back year after year because we do service right.

24/7 Services Available
(716) 649-6377

Enjoy the McAllister difference!

  • Exceptional Customer Service — From your first call until after we’ve cleaned up, you can expect clear communication, respectful interactions, and integrity at every step.
  • No Surprise Billing — What we quote is what you pay, every time. With our team, you’ll get the total before we ever start work.
  • Plumbers You Can Trust — Our plumbers are all trained and experienced for your peace of mind.
  • Experience and Expertise — With ongoing training to stay at the forefront of modern plumbing and decades of work on local homes, we know how to handle your tankless water heater installation fast and right.

Tankless Water Heater Installation and Repair Done Right

Tankless water heater installation is a smart choice for homeowners looking to improve energy efficiency and enjoy a continuous supply of hot water. Unlike traditional water heaters with big 20, 30, and even 60-gallon tanks, tankless units heat water on demand. This not only reduces energy waste but also frees up valuable space in your home. At McAllister, our experienced plumbers can help you choose the right model based on your household’s needs and ensure a seamless, code-compliant installation.

Flowrate is the alternative to size when choosing a tankless water heater, and we’ll help you get one that produces enough water to serve all of your fixtures, not just one bathroom at a time.

Make the switch to a tankless water heater and enjoy:

  • Lower utility bills
  • Endless hot water
  • Longer equipment lifespan
  • More space

Expert Tankless Water Heater Repair

In addition to installation, we offer expert repair services for all major tankless water heater brands. Whether you’re experiencing fluctuating water temperatures, error codes, or reduced flow rates, our team is equipped to diagnose and fix the problem quickly. Trust McAllister for prompt, professional service that keeps your tankless water heater running at its best.

Serving Erie County Communities

McAllister delivers reliable tankless water heater repair and installation services to communities throughout Erie County, including:

  • Lackawanna
  • East Aurora
  • Glenwood
  • North Collins
  • Angola

Schedule Tankless Water Heater Services Today!

If you’re ready to upgrade your home with a high-efficiency tankless water heater, or you need repairs you can count on, get in touch with McAllister. We’ll get the hot water flowing and streamline any installations needed.

Don’t wait for both taps to dispense cold water. Call McAllister Plumbing, Heating & Cooling today to schedule your tankless water heater installation or repair in the Southtowns.

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What To Expect

What Makes McAllister Different

A+ BBB Rating
Over 60 Years of Experience
Fair & Upfront Pricing
Expert Care - Every Time
Built on Integrity
Highly Trained Technicians
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Our Reviews

See What Your Neighbors Are Saying

I woke up with no heat and called McAllister and they answered in one ring! The receptionist was very friendly and had someone out within a half hour! The technician was super helpful, friendly, and kind. He was able to get the part I needed within a few hours, came back, and fixed our issue the…

Megan G.
Megan G.

McAllister has done work for us multiple times, and we always receive excellent service. We have an old gas boiler heating system and had a pipe burst. Needless to say, we were anxious about it. Jeff came out, diagnosed, and fixed the problem on very short notice. Professional service at a reasonable price. What a huge…

Adam S.
Adam S.

McAllister just recently installed all new heating and cooling systems in our home and rental property. From the first interaction with the sales rep to the men that did the installation, everyone was professional, kind, and very easy to work with. We have had many updates and things done to our home recently, and I never…

Randy B.
Randy B.

We called about our heat going out, and they sent a tech out within a half hour. Unfortunately for us, we needed a whole new furnace. They were able to have a team out the next day to install the system! The techs were all very polite and efficient! They offer many payment options, which was…

Matthew J.
Matthew J.

We have used McAllister for years. They have always been available at the drop of a hat when we've had emergencies. Their technicians are extremely knowledgeable and prepared for anything. Their office staff is kind, efficient, and always a pleasure to talk to! Their pricing is in line with industry standards, and they have NEVER tried…

Lisa B.
Lisa B.

McAllister was great to work with. Great communication, affordable financing, and they did a great job installing. I'm happy with the AC mini-split that was installed and am glad I chose them for the work. Thanks again!

Jake G.
Jake G.

We have used McAllister for both large and small projects for the past year, and we have been extremely satisfied with their work. They have replaced both our water heaters, installed a new AC unit, and some smaller plumbing issues. They are very friendly to work with, always manage to schedule us promptly, and do excellent…

Andrew S.
Andrew S.

Simply the best! We have used McAllister since we moved six years ago, and they have always been professional, responsive, and accommodating. Quality costs, but you get what you pay for. And it's worth it to us when, at 8pm on a Friday night, a professional will come out and do their best to get our…

John P.
John P.

I was away from my home from 8:00 am until 10:00 pm. When I got home, I heard water running. The pipe under my sink burst and flooded my bathroom, hallway, and basement. I called McAllister as I know they have an emergency number. A very nice gentleman was at my home within the hour. He…

Wendy P.
Wendy P.

My hot water heater exhaust chimney was blocked. The gas company showed me the carbon monoxide reading and shut it down. The guys from McAllister showed up promptly, figured out the problem without much fuss, fixed that hot water heater, AND another hot water heater that had been shut down long ago, probably for the same…

William B.
William B.