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Outdated equipment with poor efficiency ratings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’ve been using them for years and recently brought my parents on board. The office staff is courteous and professional. Never an attitude for any reason. They show up in the time
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— Cynthia Baldelli

A&S Nathan Heatinf and Cooling converted us from oil to gas heating! Awesome Company! Clean, neat and professional. I would highly recommend them to anyone! Love this company! Carri
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— Samantha Archibald

I live in Florida and I needed to have my old heating system replaced in Stratford, Ct. I needed a company that I could trust to do the job. A&S Nathan Heating provided that. They w
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— Philip Michitsch

Professional fast and great pricing. Jake and his team do not play around. From top to bottom a great company to work with! Highly recommend

— jack videira

The A&S team is always helpful and professional. They recently took time out of their already very busy schedule to replace my furnace so my family could have a warm house again. Th
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— Dave Knight

A and S Nathan has very experienced service technicians, who take the time to answer customer questions and concerns. This business is very honest in their determination of what work ne
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— Cheryl Morgan

This morning I woke up to no hot water and no heat. I called the company who installed my gas boiler and they referred me to A&S Heating and Cooling. They came out within hours, eve
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— Cathy Politi

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

Craig came to service our furnace and he was excellent. He identified an issue we were not aware of, explained it thoroughly and took care of it. We recently moved into our home and the
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— Ashley Boutagy

The only company I will call. Great technicians (thanks Mark)!They’ve provided honest quotes and don’t waste time.

— Adam

Always fantastic service. Called last week in a heat wave with no AC and they sent someone out within a few hours and AC was repaired during the visit.

— Brett Greenlaw

This is a great company. I had a problem with my heat not coming on and would have to hit the reset button.The technician, Craig, was friendly, fast and efficient.

— Tracy Buckley