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Outdated equipment with poor efficiency ratings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.
Very positive experience here, good communication with the office, quick and decent parts and labor estimates. Quick and professional furnace replacement, and all necessary collateral w— Nick Ungureanu
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Always professional, courteous, and on time.— Christine DAulizio
The AC stopped working last night. Called at 8:00 this morning. Someone was here within the hour and fix was done by 9:30. They are by far the best we’ve ever dealt with!— Susan Lampert
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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This company is definitely one of the best!! Had AC issues made one phone call and they sent help right away!! This gentleman was spot on honest and got the parts and did the job asap!— Mike
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Mark came by today to service my boiler and he was professional and efficient. Offered suggestions for future maintenance and took the time to explain the services he provided. Highly r— Nick Franzago
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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— Kimberly Camella – Roy
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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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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— Charlene R
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Chose them to replace my 25 year old oil boiler and couldn’t be happier. Worked fast, cleaned up, very responsive and helpful.— Niall Begley
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— Mark A
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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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