Heating Repair

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.

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
— Bridget Stronge
5-star rating
Forget the rest. The service is unbeatable. A/C capacitor went in the middle of a heat wave, but Jake and the crew were out there diagnosing and solving the problem 20min later! The emp
— Aaron Skowronski
5-star rating
The tech that came to my house Was Mark very professional very respectful he can come to my home to service my unit anytime thank you Mark
— John Zofcak
5-star rating
A huge thanks to Dan, Mark and the entire A&S Nathan crew. With some cold weather finally rolling in they were able to get everything up and running quickly. Great prices and Truly
— Shane Hyland
5-star rating
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
— Matt Muccioli
5-star rating
Wes and Scott were here to do our A/C and they were friendly and did an excellent job. Highly recommend this company
— J H2
5-star rating
A&S made the whole experience of replacing my Furnace and AC seamless. The installers seemed very knowledgeable, efficient and punctual. In this day and age it was good to deal with
— robert duchnok
5-star rating
I’ve used A&S for many years. Fast, professional and reasonable! Available for emergencies (think New Year’s Eve!). I frequently recommend them to friends, family and neighbors!
— Meg Zuklie
5-star rating
I would highly recommend A&S for all HVAC/A/C services!
— Bob Amberg
5-star rating
The representatives were courteous, knowledgeable and explained everything clearly
— Marilyn Stephens
5-star rating
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
— Kevin Marron
5-star rating
Good morning, Mark recently cleaned and repaired our oil burner. He repaired a slow oil leak (and replaced the oil soaked coil). Thank him for the job well done. Dan
— Daniel Bitter