Air Conditioning Replacement

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  • Outdated equipment with poor efficiency ratings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
5-star rating
Thumbs up to A&S Heating. Dave, the technician found some issues that were done improperly and accurately corrected the problems. Left everything clean. Very professional and will d
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— C J
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Needed the furnace serviced before the start of cold season and customer service was great. Called and spoke with a nice woman who explained their pricing and deals (without being pushy
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— Theresa Hanson
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Great installation and service experience.
— Shannon Bowley
5-star rating
Dave was amazing! Honest and quick to fix the problem! Thank you
— Michele Ambrosini
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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
5-star rating
The A&S Nathan team showed up this morning bright and early at 7 am to install and replace my oil boiler. This was a big job and there were four guys dedicated to completing it toda
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— Kathryn Lynch
5-star rating
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
5-star rating
The only company I will call. Great technicians (thanks Mark)!They’ve provided honest quotes and don’t waste time.
— Adam
5-star rating
We had several installation and maintenance projects with A&S Nathan. Everytime they were on time, friendly, competent and efficient. Bernie and Liz
— bernie Keppler
5-star rating
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
5-star rating
Big shout out to A&S Nathan Heating. No heat on a cold morning in a new house with an old boiler.
— Judy
5-star rating
I had Mark from A&S Nathan come to my home for a repair. I can not say enough great things about his service. He was super friendly and knowledgeable making me feel comfortable.
— Michael Eaton