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
The only company I will call. Great technicians (thanks Mark)!They’ve provided honest quotes and don’t waste time.
— Adam
5-star rating
We had several things done/installed in one day. Ian was fantastic coordinating the entire project. Then he took time to explain everything to us. Heather in the office is so accommodat
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— linda hooper
5-star rating
Fast service. Called on a dead furnace and new furnace installed SAME DAY!
— George Habrecht
5-star rating
The representatives were courteous, knowledgeable and explained everything clearly
— Marilyn Stephens
5-star rating
We had our AC system replaced this year. The A&S team was on time, professional and polite. They got the job done within the timeframe they estimated, they shared honest feedback on
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— Deb Ferreira
5-star rating
I just wanted to say is on Friday October 31, 2025 we needed service done on our oil burner. Your technician Mr Craig & I forgot the other gentleman name. They did an awesome job do
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— Abtin Nejad
5-star rating
Just had a new oil furnace installed in my old house. This company was easy to work with, gave me a fair price, but the install was top notch.
— Barry Gordon
5-star rating
Of course A/C always breaks on the hottest most humid day of the summer. I have not previously been a customer and called based on the recommendation of a friend. I left a request on th
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— John S
5-star rating
Good experience!! Met all stated commitments on time. Would definitely recommend. Thanks
— Dave G
5-star rating
I am very pleased with not only the service I received from this company but with the prompt response from them in a time of need.
— Jennifer Garofalo
5-star rating
These guys absolutely Rock!! They installed a new Weil-McClain boiler today, to replace my 30 year old unit. Workmanship was superb! They were clean, professional and indeed craftsman.
— Jason Dokla
5-star rating
Absolutely a 10 out of 10 rating. We had to have our 33 year old boiler replaced. The crew was here on time, were honest, efficient, helpful, very clean and got the job done very quickl
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— Debbie Mahoney