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Outdated equipment with poor efficiency ratings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 friendly staff quick to respond to issues. Tech Scott is very knowledgeable, very prompt and quick to resolve our HVAC issues. Thank you A&S Nathan!— Melissa Schmitt
Definitely the best HVAC company in the valley. Family owned, the employees are knowledgeable, professional, and had the utmost respect for our home, leaving their area cleaner than whe— Thomas McCormick
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We finally decided to switch to natural gas in our house and we were looking for a heating and cooling contractor to do it all! Gas in the house, furnace, central air and an on-demand w— Mark Pastor
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A&S is the real deal! I just bought a new home that needed work on re-wiring the thermostats. Other services attempted to fix the issue but could not get the job done. A&S showe— Jamie Bean
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Needed the furnace serviced before the start of cold season and customer service was great. Called and spoke with a nice woman who explained their pricing and deals (without being pushy— Theresa Hanson
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Good experience!! Met all stated commitments on time. Would definitely recommend. Thanks— Dave G
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— Cathy Politi
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Called several companies, they were the only ones who were available for same day service. They had my AC unite up and running quickly. Excellent service, will definitely call them agai— Lukasz Glinka
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We had several installation and maintenance projects with A&S Nathan. Everytime they were on time, friendly, competent and efficient. Bernie and Liz— bernie Keppler
Our technician Dave was incredible. I’ve done some plumbing myself but watching him work was a pleasure. He arrived on time, was skilled and efficient and patiently explained what— Maria Rubino
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Great people to deal with! Professional, accommodating, and extremely knowledgeable! Will recommend to my friends and neighbors.— Mark Doug
Absolutely a 10 out of 10 rating. We had to have our 33 year old boiler replaced. The crew was here on time, were honest, efficient, helpful, very clean and got the job done very quickl— Debbie Mahoney
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