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:
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Your furnace or boiler is more than 15–20 years old
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Rising energy bills despite regular maintenance
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Uneven heating or cold spots in your home
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Frequent breakdowns or costly repairs
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Strange noises, odors, or reduced air quality
Our Heating Replacement Services
We provide expert installation of energy-efficient heating systems, including:
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Gas and oil furnaces
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Boilers
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Heat pumps
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Ductless mini-splits
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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?
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Local Experts – Trusted HVAC company proudly serving Connecticut families
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Licensed & Insured – Fully certified for furnace and boiler replacements
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Energy Efficiency – We install systems that meet or exceed ENERGY STAR® standards
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Financing Options – Flexible plans available to fit your budget
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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.
nan— Ned Heberger
We’ve been customers of A&S Nathan for some time so the decision to use them was easy when it came to replace our boiler. The process was easy and the installation was quick and s— Briget Stronge
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I have been using A and S Nathan heating for a couple years now . Very professional, helpful and on time . Mark came out to my moms at 8:00 on Friday night . Dispatch told me where he w— Jeano Carloni
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A&S made the whole experience of replacing my Furnace and AC seamless. The installers seemed very knowledgeable, efficient and punctual. In this day and age it was good to deal with— robert duchnok
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Jake provided us with a detailed estimate with options and talked us through it so we could understand how best to match our needs.— Sarah Duff
The service man, Jon, provided excellent service and explained everything in detail as this was my first HVAC service in our new home. Seemed very straightforward and honest. Highly rec— Joseph Nuttall
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Great service— paul grey
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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Good morning, Mark recently cleaned and repaired our oil burner. He repaired a slow oil leak (and replaced the oil soaked coil). Thank him for the job well done. Dan— Daniel Bitter
I’ve used A&S for many years. Fast, professional and reasonable! Available for emergencies (think New Year’s Eve!). I frequently recommend them to friends, family and neighbors!— Meg Zuklie
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Time and time again, Al and his team of professionals go above and beyond to get the job done timely and effectively. Highly recommend!— Emily Moore
Was having issues with my heating on a Friday afternoon, called A&S and they sent someone over right away to take a look. They had my heat working within 30 min. I recommend them to— Peter Vicente
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