Reliable AC Replacement in Connecticut

If your air conditioner can’t keep up with the summer heat, it may be time for a replacement. At A&S Nathan Heating & Cooling LLC, we specialize in replacing old or inefficient air conditioning systems with modern, energy-efficient solutions that keep your home cool and comfortable. From central air units to ductless mini-splits and heat pumps, our licensed technicians will help you upgrade with confidence.

Signs You Need AC Replacement

Your AC is 10–15+ years old and breaking down frequently
Rising energy bills despite regular maintenance
System struggles to keep your home cool or runs constantly
Frequent repairs costing more than the system is worth
Outdated equipment with poor efficiency ratings

Why Choose Us for AC Replacement?

Expert Guidance – We’ll help you select the best cooling system for your home and budget.
High-Efficiency Options – Upgrade to a system that saves energy and lowers monthly costs.
Ductless & Heat Pump Solutions – Flexible choices for all home types.
Licensed & Insured Technicians – Professional service you can trust.
Financing Available – Flexible payment options through Synchrony.

Systems We Replace

Central air conditioning units
Heat pumps
Ductless mini-splits
Thermostats & zoning systems

Service Areas

We proudly provide AC replacement services throughout Connecticut, including:
Fairfield • Stratford • Trumbull • Shelton • Milford • Monroe • Newtown • Ansonia • Derby • Seymour • Orange • Beacon Falls • Bethany • Oxford—and nearby communities.

Replace Your AC System with Confidence

Don’t wait for a total breakdown—plan ahead and stay cool with a professional AC replacement from A&S Nathan Heating & Cooling LLC. Call (203) 555-1234 or click Book Appointment to schedule your free estimate today.

Book an Appointment

I’m extremely happy with the installation of our new AC system; works great, technicians were professional, polite and considerate throughout the entire process … I highly recommend
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— Stephen Raccio

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

— Judy

Kyle was fantastic! So personable and quickly helped resolve our AC issue on a very hot day! He is such a credit to your business.

— Kate Dillon

Amazing customer service that goes above and beyond year over year! We are a longtime customer and A&S has always exceeded our expectations!

— Dawn Coppola

My furnace kept going in and out on a cold day . Even though they couldn’t fix my old furnace (30+ years old) on the initial service call , the tech was very thorough in diagnosin
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— John Crowley

Look no further – if you’re trying to find the company to use, this is it. Could not have been a better experience. I reached out for help with my furnace situation and sett
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— Jeffrey Byron

Couldn’t have asked for a smoother service for a new furnace install.

— Sharyn Scully

Fast Friendly Service and the On-Line Appointment booking option was fast and easy. Made it so easy to pick a day and time. Service Tech showed up right on time and did a great job fast
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— Lynn Sansone

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

I had annual service done on my HVAC systems today. The guys did a great job! They arrived on time and were very friendly and professional. They explained everything to me and gave me m
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— Chris Blaszczynski

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