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  • Outdated equipment with poor efficiency ratings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
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
5-star rating
Big shout out to A&S! Our fujitsu mini split was blowing warm air, called several shops and got the run around or no call backs. A&S was able to send a tech out the next day, TH
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— M Carrello
5-star rating
I have used A&S Nathan for my personal home, for all of family and I recommend them to all of my real estate clients to as well! They are the best around and you will not be disappo
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— Kimberly Camella – Roy
5-star rating
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
5-star rating
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— Ned Heberger
5-star rating
These guys are great! The person who took the call was helpful, knowledgeable & friendly. Mark & Larry arrived in a very timely manner, they were also very friendly & knowle
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— Jonny
5-star rating
10 out of 10 recommend. Ian, Tommy and Dan worked on our ac unit replacement today, the crew was here on time, honest, efficient, helpful, clean and got the job done very quickly! Also
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— Dena Miccinello-Barbarula
5-star rating
7pm on a Saturday night & my furnace goes out. Who did I call? A&S Nathan of course. The tech was there promptly. Clean & professional. I had heat in less than an hour. Th
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— Paul Harris
5-star rating
After having an issue with our thermostats and heat, we needed to get HVAC out to help. A&S had the best reviews, and I had seen them highly recommended on Shelton’s local fac
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— Ashley Bean
5-star rating
I have been a customer of A&S Nathan for several years. Scott always does a great job with my annual oil furnace tune up. Scott always goes above and beyond and patiently answers al
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— Alessandro Lopes
5-star rating
Great installation and service experience.
— Shannon Bowley
5-star rating
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