Water Heater Repair

Get Your Hot Water Flowing Again—Fast

A broken water heater can bring your household to a halt. At A&S Nathan Heating & Cooling LLC, we provide fast, reliable water heater repair services throughout Connecticut. Whether you have a conventional tank model or a modern tankless unit, our licensed technicians have the training and experience to diagnose the problem and get your hot water back quickly.

Common Water Heater Issues We Fix:

  • No hot water or inconsistent water temperature

  • Leaks around the tank or piping

  • Strange noises such as popping or rumbling

  • Rusty or discolored water

  • Pilot light or ignition problems in gas units

  • Electrical issues in electric models

Why Choose Us for Repairs?

  • 24/7 emergency service available

  • Fully licensed and insured technicians

  • Honest recommendations—repair when possible, replace when necessary

  • Experience with all major makes and models

Don’t let water heater issues disrupt your day. Call A&S Nathan Heating & Cooling LLC for prompt, professional repair service and enjoy reliable hot water again.

5-star rating
Amazing customer service that goes above and beyond year over year! We are a longtime customer and A&S has always exceeded our expectations!
— Dawn Coppola
5-star rating
Great people to deal with! Professional, accommodating, and extremely knowledgeable! Will recommend to my friends and neighbors.
— Mark Doug
5-star rating
I had an issue, I called and I got through to the office manager heather .
— Jorge Lopez
5-star rating
I reached out for help with my AC unit that wasn’t cooling, and they came out the same day to diagnose the problem. Mark, the technician, was very knowledgeable and took the time to e
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— Carlos Caraballo
5-star rating
What an awesome company to deal with. My technicians Craig and Larry were an absolute pleasure to have in my home servicing my boiler. I would recommend them to anyone looking for a qua
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— Jim Dummitt
5-star rating
A&S Nathan is a quality organization – a family business with a solid team across the board! They did the install for our newly renovated bar and not only were they flexible w
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— Joseph Joyce
5-star rating
We’ve been customers of A&S Nathan for some time so the decision to use them was easy when it came to replace our boiler. The process was easy and the installation was quick and s
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— Bridget Stronge
5-star rating
Great service
— Cindi Dickinson
5-star rating
I used them to do a oil furnice tune up. I absolutely love it 100 percent I will call them this year as well. The guy that came have a really good knowledge of what he had to do.
— The Reviewer 85
5-star rating
Always fantastic service. Called last week in a heat wave with no AC and they sent someone out within a few hours and AC was repaired during the visit.
— Brett Greenlaw
5-star rating
A&S Nathan Heating & Cooling LLC are truly professional. They’re the only company that responds quickly and is on site to make repairs when needed. The technicians are kno
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— Brian Fandetti
5-star rating
The crew did an excellent job during my conversion from oil to propane. The work was of the highest quality and they completed it in a timely and organized manner.
— Francois Polica