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

Shout out to A&S Nathan Heating and Cooling. Today we discovered our water heater sprung a leak (water everywhere) Called A&S first thing this morning and they were able to come
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— Deb Tiriolo

Chose them to replace my 25 year old oil boiler and couldn’t be happier. Worked fast, cleaned up, very responsive and helpful.

— Niall Begley

The oil burner cleaning technicians are terrific. And Hannah in the office was lovely to work with ?

— Jill

Heather is so knowledgeable and easy to work with!

— Evelisse Lopez

We loved their service from scheduling down to getting the work done. Great prices! Worth the work!! 10/10

— Karina Dejesus

I set up an appointment with Debbie, who was very kind and had two excellent techs out to the house. They repaired and performed maintenance work on my A/C in a professional and timely
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— Ethan

Yesterday, My mothers home had lost heat. I work at Aire Serv and we dont do oil, but we always use A&S nathan for our oil customers so I figured why not call them for me.

— Sara Whiteley

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

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

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
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— Aaron Skowronski

Jake and his crew at A&S Nathan are top notch. I have used them for installs and services on many projects. They are always on time and fix any issue I have, from gas piping, tankle
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— matthew todice