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  • Outdated equipment with poor efficiency ratings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
On time kept me informed friendly service clean job
— Suzanne Sherman
5-star rating
Called A&S b/c furnace had been running rough for months. Scott & Robert were extremely easy to work with, professional, & very polite. Scott was very knowledgeable and to
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— Charles Ramik
5-star rating
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
5-star rating
I wanted to take a moment to thank the office staff, Beth and Toni whose real voices answered the phone versus hearing recorded voice prompts and then listening to music to wait for som
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— Charlene R
5-star rating
Very professional and reliable.
— Richard Cottrell
5-star rating
Just had Craig and Scott out to replace our hot water heater. They did an excellent job. Two very nice guys! They came, installed, cleaned-up, and all with a smile! And thank you to Joa
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— Jacqueline Peccerillo
5-star rating
Heather is so knowledgeable and easy to work with!
— Evelisse Lopez
5-star rating
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
5-star rating
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
5-star rating
Had Mark at my house for service. Up and running better than ever.
— Kevin Mosman
5-star rating
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
5-star rating
We used A&S Nathan to replace our Water Heater that wasn’t venting properly. During the estimate, Jake explained my options and recommended an On Demand water heater. I am ext
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— Mark A