Fast, Reliable AC Repair in Connecticut

When the summer heat hits, the last thing you need is a broken air conditioner. At A&S Nathan Heating & Cooling LLC LLC, we provide efficient, dependable air conditioning repair services to keep your home cool and comfortable. Our experienced licensed technicians service all major AC brands and systems, from central air units to ductless mini-splits.

Why Choose Us for AC Repair?

24/7 Emergency Service – We’re here when you need us most.
Licensed & Insured Technicians – Skilled in repairing all types of air conditioning systems.
Upfront, Honest Pricing – No surprises—just straightforward service.
Locally Trusted Experts – Serving families across Fairfield, New Haven, and surrounding towns.
Financing Available – Flexible payment options through Synchrony.

Common Air Conditioning Problems We Fix

AC blowing warm or weak air
System won’t turn on
Strange noises or unusual odors
Frozen coils or leaking water
Inconsistent cooling or hot spots
Rising energy bills due to inefficiency

Our Service Areas

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

Stay Cool – Schedule AC Repair Today

Don’t suffer through the heat—call (203) 555-1234 or click Book Appointment to schedule fast, professional AC repair with A&S Nathan Heating & Cooling LLC.

Book An Appointment

Big shout out to A&S Nathan Heating. No heat on a cold morning in a new house with an old boiler.

— Judy

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
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— robert duchnok

We called for a broken air conditioner and they were at our house in no time to fix it. The man who fixed our air conditioner was very friendly and professional. I think his name was Sc
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— Donna Scott

Great service! I had no heat this morning and got a call back immediately and they came out very fast! They sent Dave out and fixed the issue without breaking the bank!

— Luanne Mezzo

A big shout out to the ladies in the office that have been super responsive and so polite! Great people to work with.

— Jaime Boucher

A&S Nathan is a small local company that provides great service for all your HVAC needs. They are professional, responsive, they don’t cut corners, but most of all are a pleasure
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— carl iacomacci

Great installation and service experience.

— Shannon Bowley

I highly highly recommend them. Very professional. Calls back right away. Sets up meeting. Email and text sent. Then another email and text sent to remind you of the meeting and then a
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— Linda Dzurenda

Dan the Technician was extremely efficient. So much so that in the future I will request him. Very meticulous , informative , pleasant, and resolved our issue.

— Joe Slane

11/6/25 – Today Mark & Sean came for Maintenance of our Navien NCB 240E Combi Boiler. They were Scheduled for a 10 to 12 window and came right at 10am … They worked effi
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— Gil Fevrier

Our technician Dave was incredible. I’ve done some plumbing myself but watching him work was a pleasure. He arrived on time, was skilled and efficient and patiently explained what
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— Maria Rubino