Professional AC Installation in Connecticut

Looking to upgrade your cooling system or install air conditioning for the first time? At A&S Nathan Heating & Cooling LLC, we specialize in installing central air systems, heat pumps, and ductless mini-splits designed to keep your home cool, efficient, and comfortable—even on the hottest summer days. Our licensed team will help you choose the right solution for your home and budget, then install it with precision.

Why Choose Us for AC Installation?

Custom System Sizing – We’ll ensure your AC system is perfectly matched to your home’s needs.
Energy-Efficient Options – Lower utility bills with high-efficiency air conditioners and modern technology.
Ductless & Heat Pump Solutions – Flexible options for homes with or without ductwork.
Trusted Local Experts – Serving Connecticut families with reliable HVAC service.
Licensed & Insured – Professional installation backed by years of experience.
Financing Available – Affordable payment plans through Synchrony.

Our Air Conditioning Installation Services

Central air conditioning systems
Heat pump installation
Ductless mini-split systems
Thermostat upgrades & zoning controls
Replacement of outdated AC units

Service Areas

We proudly provide AC installation throughout Connecticut, including:
Fairfield • Stratford • Trumbull • Shelton • Milford • Monroe • Newtown • Ansonia • Derby • Seymour • Orange • Beacon Falls • Bethany • Oxford—and surrounding towns.

Upgrade to a New AC System Today

Don’t wait until your old system breaks down—invest in a new, energy-efficient air conditioner with A&S Nathan Heating & Cooling LLC. Call (203) 555-1234 or click Book Appointment to schedule your free AC installation estimate today.

Book an Appointment

Great company. Would highly recommend! Wonderful people from the ladies in the office to the installers and servicemen to the owner.

— libby dicicco

Been using A&S Nathan Heating & Cooling LLC for over 15 years. They have always provided great service. Whether it’s replacing my A/C unit or a seasonal tune-up, they are
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— Greg DeStefano

The representatives were courteous, knowledgeable and explained everything clearly

— Marilyn Stephens

I’ve been using A&S Nathan since moving to Stratford, CT. They service my A/C and furnace every year and I have needed them once or twice for a furnace repair.

— Audrey FERRARO

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

Just had a new oil furnace installed in my old house. This company was easy to work with, gave me a fair price, but the install was top notch.

— Barry Gordon

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
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— Samantha Archibald

Came out same day for a furnace inspection. Very helpful and knowledgeable!

— Emily Brisch

This is a great company. I had a problem with my heat not coming on and would have to hit the reset button.The technician, Craig, was friendly, fast and efficient.

— Tracy Buckley

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
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— Nick Franzago

Dan from the service dept repaired my heating system and was very professional. He explained the issue so I understood what he meant. He was polite and cleaned the area up nicely afterw
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— Tracy B