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.
Professional fast and great pricing. Jake and his team do not play around. From top to bottom a great company to work with! Highly recommend— jack videira
Outstanding customer service! I’ve used A&S for both my new AC unit and recently my furnace and I am so pleased with their work. I highly recommended A&S Nathan.— Toni Lisi
I am very pleased with not only the service I received from this company but with the prompt response from them in a time of need.— Jennifer Garofalo
Heather is so knowledgeable and easy to work with!— Evelisse Lopez
I live in Florida and I needed to have my old heating system replaced in Stratford, Ct. I needed a company that I could trust to do the job. A&S Nathan Heating provided that. They w— Philip Michitsch
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I just wanted to say is on Friday October 31, 2025 we needed service done on our oil burner. Your technician Mr Craig & I forgot the other gentleman name. They did an awesome job do— Abtin Nejad
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We purchased and had a new Water Heater installed. I can’t say enough great things about he company. They were on-time, did the job well, and at a better cost than others. I would— Jason Martinez
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I had my first experience with A&S Nathan HVAC on April 29, 2025. Making the appointment was a breeze. Received cordial service over the phone. On the day of the service (tune-up an— Daria Anderson
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A&S Nathan Heating & Cooling LLC are truly professional. They’re the only company that responds quickly and is on site to make repairs when needed. The technicians are kno— Brian Fandetti
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A&S I would like to express my thanks and appreciate to A&S Nathan. My gas boiler gave up on us. They where recommend to me. The best recommendation ever. I called and they answ— Lourdes Valles
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Technicians were great. Really focused on preventative maintenance. Tested airflow temperature differential, belts, checked water chases to ensure no clogs were forming. Great job. 40 m— Larry Zollo
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A&S Nathan is quick to respond, work within reasonable budgets, and turned around a furnace replacement IN A DAY (in a very cold January week!). Throw on top, they’re very nic— Andrew Hoenig
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