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
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Your AC is 10–15+ years old and breaking down frequently
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Rising energy bills despite regular maintenance
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System struggles to keep your home cool or runs constantly
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Frequent repairs costing more than the system is worth
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Outdated equipment with poor efficiency ratings
Why Choose Us for AC Replacement?
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Expert Guidance – We’ll help you select the best cooling system for your home and budget.
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High-Efficiency Options – Upgrade to a system that saves energy and lowers monthly costs.
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Ductless & Heat Pump Solutions – Flexible choices for all home types.
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Licensed & Insured Technicians – Professional service you can trust.
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Financing Available – Flexible payment options through Synchrony.
Systems We Replace
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Central air conditioning units
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Heat pumps
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Ductless mini-splits
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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.
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— Dena Miccinello-Barbarula
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Mark came out and gave me a thorough explanation of my system and how it works. He also explained benefits of having certain contracts. Heather, & Barbara who I have all dealt with— Tony
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I had an issue, I called and I got through to the office manager heather .— Jorge Lopez
What an awesome company to deal with. My technicians Craig and Larry were an absolute pleasure to have in my home servicing my boiler. I would recommend them to anyone looking for a qua— Jim Dummitt
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very happy with them !— christina scappini
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— Samantha Archibald
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A&S Nathan is a quality organization – a family business with a solid team across the board! They did the install for our newly renovated bar and not only were they flexible w— Joseph Joyce
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We have used a number of HVAC companies over the years and A&S Nathan is by far the best. They respond quickly, identify issues quickly, and the price is right! Not to mention every— Amy Joyce
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I had my first experience with A&S Nathan HVAC on April 29, 2025. Making the appointment was a breeze. Received cordial service over the phone. On the day of the service (tune-up an— Daria Anderson
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The AC stopped working on the hottest day of the year at my business. I figured I would never find anyone to come out same day. I spoke with Allen and had them come out within 2 hours o— Lori Weaver
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A&S Nathan replaced the seised blower motor in my funance that is also used for my central A/C. Diagnosed the issue found a new replacement locally, picked it up and installed it, t— Robert Steller
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Technicians were great. Really focused on preventative maintenance. Tested airflow temperature differential, belts, checked water chases to ensure no clogs were forming. Great job. 40 m— Larry Zollo
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