Heating Replacement

When the temperatures drop, you need a heating system you can rely on. At A&S Nathan Heating & Cooling LLC, we specialize in professional heating replacement services that keep your home warm, efficient, and safe. Serving homeowners across Fairfield County, New Haven County, and surrounding Connecticut towns, our licensed technicians deliver dependable solutions tailored to your home and budget.

Signs It’s Time to Replace Your Heating System

Not sure if repair is enough? Replacement may be the smarter investment if your system shows these signs:

Your furnace or boiler is more than 15–20 years old
Rising energy bills despite regular maintenance
Uneven heating or cold spots in your home
Frequent breakdowns or costly repairs
Strange noises, odors, or reduced air quality

Our Heating Replacement Services

We provide expert installation of energy-efficient heating systems, including:

Gas and oil furnaces
Boilers
Heat pumps
Ductless mini-splits
High-efficiency systems designed to lower utility costs

Every installation includes professional sizing, removal of old equipment, and a clean, safe setup so your home is ready for comfort right away.

Why Choose A&S Nathan Heating & Cooling LLC?

Local Experts – Trusted HVAC company proudly serving Connecticut families
Licensed & Insured – Fully certified for furnace and boiler replacements
Energy Efficiency – We install systems that meet or exceed ENERGY STAR® standards
Financing Options – Flexible plans available to fit your budget
24/7 Emergency Service – We’re here when you need us most

Serving Your Town

We proudly offer heating replacement in towns across Connecticut, including Bridgeport, Stratford, Milford, New Haven, Trumbull, Shelton, Fairfield, Hamden, Waterbury, and more.

Book Your Heating System Replacement Today

Don’t wait until your system fails during the coldest day of the year. Schedule a consultation with our team and discover the best replacement options for your home.

Book an Appointment

Great service

— Cindi Dickinson

Al Nathan went above and beyond to diagnose a problem with my duct work and a vent that was not working. He and his crew were professional and completed the work promptly and efficientl
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— Ony Sierra

I reached out for help with my AC unit that wasn’t cooling, and they came out the same day to diagnose the problem. Mark, the technician, was very knowledgeable and took the time to e
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— Carlos Caraballo

My wife and I went through many hvac contractors before finding Jake and his team. We are so happy to have honest and efficient technicians to service our equipment year round.

— Stephen

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

Amazing fast SAME DAY SWRVICE ! ????? Thank you so much Dave ! Will absolutely recommend !

— Irene Camara

We had several things done/installed in one day. Ian was fantastic coordinating the entire project. Then he took time to explain everything to us. Heather in the office is so accommodat
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— linda hooper

Very good experience. Jake, Ian and team did a first rate job on our central AC installation. The entire team – including the office staff – were prompt, professional and co
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— John Conroy

Fast Friendly Service and the On-Line Appointment booking option was fast and easy. Made it so easy to pick a day and time. Service Tech showed up right on time and did a great job fast
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— Lynn Sansone

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
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— Amy Joyce