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.
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— Tracy B
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I used them to do a oil furnice tune up. I absolutely love it 100 percent I will call them this year as well. The guy that came have a really good knowledge of what he had to do.— The Reviewer 85
Paul & Wes did a great job! I could see that they had a plan in place and they working accordingly. The water heater selection was a great choice; and one the company stands behind— Stephanie Fians
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Promptly responded to our request with courteous, professional and knowledgeable service.— Jennifer Draney
The A&S team is always helpful and professional. They recently took time out of their already very busy schedule to replace my furnace so my family could have a warm house again. Th— Dave Knight
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Couldn’t have asked for a smoother service for a new furnace install.— Sharyn Scully
Love them!— Margaret Gough
Called A&S for no heat on Christmas Eve, they had someone at my front door in 25 minutes. The technician was knowledgeable and efficient and had my heat back up and running within a— Joe Szymansky
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A&S Nathan replaced my boiler and hot water tank yesterday and I couldn’t be happier. They were very professional and courteous and I would highly recommend them to anyone!— Susan Darmiento
Fast service. Called on a dead furnace and new furnace installed SAME DAY!— George Habrecht
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
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
