Fast, Reliable Heating Repair in Connecticut

When your heating system stops working, you need help you can count on—fast. At A&S Nathan Heating & Cooling LLC, we provide prompt, professional heating repair services to keep your home comfortable and safe all winter long. Whether it’s a furnace, boiler, heat pump, or ductless system, our licensed technicians are trained to diagnose and fix problems efficiently.

Why Choose Us for Heating Repair?

24/7 Emergency Service – Heating breakdowns don’t wait for business hours, and neither do we.
Licensed & Insured Technicians – Our team has the training and experience to handle any heating system.
Upfront Pricing – No hidden fees—just clear, honest service.
Locally Trusted – Serving homeowners across Fairfield, New Haven, and surrounding counties.
Financing Available – Flexible payment options through Synchrony.

Common Heating Problems We Fix

Furnace not turning on or blowing cold air
Uneven heating throughout your home
Strange noises or odors from your system
Frequent cycling on and off
Rising energy bills due to inefficiency

No matter the issue, our team will get your system back up and running—fast. If your system is beyond repair, we’ll walk you through replacement options that fit your budget.

Service Areas

We proudly provide heating repair in towns across Connecticut, including:
Fairfield • Trumbull • Stratford • Milford • Shelton • Ansonia • Derby • Orange • Seymour • Monroe • Newtown • Beacon Falls • Bethany • Oxford—and more.

Schedule Heating Repair Today

Don’t wait until a small issue becomes a major breakdown. Call (203) 555-1234 or use our Book Appointment button to schedule service now. Our friendly team is ready to restore warmth and comfort to your home.

Book an Appointment

A&S has been doing my heating and AC for many years now. Awesome and quick service, very professional, everyone knows their stuff! Al & Jake are very knowledgeable with all the
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— Mike Tecci

Amazing customer service.

— B Bouchard

Can’t say enough about this company. Awesome service from first call to fixing my AC. When all other local companies told me two weeks, A&S Nathan did the job immediately and
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— Matt Muccioli

Fast service. Called on a dead furnace and new furnace installed SAME DAY!

— George Habrecht

A&S Nathan replaced my boiler and hot water tank yesterday and I couldn’t be happier. They were very professional and courteous and I would highly recommend them to anyone!

— Susan Darmiento

The guys at A&S Nathan are always Great! They show up on time and complete the job. I have used them for both a new furnace and a new A/C system. Great company!

— Michael

Highly recommend A&S Nathan Heating & Cooling LLC. Hot water tank sprung a leak over night. Called the office when they opened. Toni was a delight to speak with. Friendly and up
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— Kevin Marron

Dan from A&S Nathan did an excellent job with the tune up and cleaning of our heating unit. Dan was on time, nice and professional and went above and beyond to make sure the unit wa
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— Mariana Reis

We have been using A&S Nathan for several years for yearly furnace cleaning and this was our first need of emergency furnace service. On 9/23, I called A&S Nathan at 913am as ou
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— kathy scholz

This is a great company. I had a problem with my heat not coming on and would have to hit the reset button.The technician, Craig, was friendly, fast and efficient.

— Tracy Buckley

We had an emergency and called A&S. They were busy like everyone else this time of the year. They made time to get out and give us an estimate so we could satisfy the insurance co.

— Paul Neugebauer