Professional Heating Installation in Connecticut
Ready for a new heating system? At A&S Nathan Heating & Cooling LLC, we specialize in installing furnaces, boilers, heat pumps, and ductless systems that keep your home comfortable and efficient—no matter how cold it gets outside. Whether you’re replacing an outdated unit, upgrading for better efficiency, or switching from oil to gas, our licensed team will get the job done right.
Why Choose Us for Heating Installation?
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Expert System Sizing – We’ll recommend the best system for your home’s size and heating needs.
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Energy-Efficient Options – Save money with high-efficiency models and modern technology.
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Oil-to-Gas Conversions – Make the switch to a cleaner, more cost-effective fuel source.
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Heat Pump & Ductless Solutions – Flexible options for all home types and comfort preferences.
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Licensed, Insured & Trusted Locally – Serving Connecticut families with reliable HVAC service.
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Financing Available – Affordable monthly payments through Synchrony.
Our Heating Installation Services
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Furnace installation (gas & oil)
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Boiler installation
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Heat pump installation
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Ductless heating systems
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Thermostat upgrades & zoning
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Oil-to-gas conversion services
Service Areas
We provide heating installation throughout Connecticut, including:
Fairfield • Stratford • Trumbull • Milford • Shelton • Monroe • Newtown • Ansonia • Derby • Orange • Seymour • Beacon Falls • Bethany • Oxford—and surrounding areas.
Upgrade Your Home’s Comfort Today
Don’t wait until your old system fails—plan ahead with a professional heating installation from A&S Nathan Heating & Cooling LLC. Call (203) 555-1234 or click Book Appointment to schedule your free estimate today.
they figured out the problem with my furnace quickly and efficiently. job was complete in a timely manner. military discount is awesome as well. would definatly recommend them and use t— Mike Davis
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What a relief to have a company you can call with confidence. When our A/C stopped working on a Saturday (during the recent heat wave, of course) A&S Nathan was there on Sunday. Alt— Robert Seirup
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These guys are great! The person who took the call was helpful, knowledgeable & friendly. Mark & Larry arrived in a very timely manner, they were also very friendly & knowle— Jonny
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The best of the best. My husband and I own a local real estate company and always refer them to our buyers and sellers! They are affordable, reliable and professional! All their techs a— Marissa Papa
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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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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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What a great company to do business with. Right from the first call to the techs doing the work. Mark, a tech also known as MD 20/20, is the man when it comes to hot air…(cold too— Michael Majewski
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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
Very fast and prompt Very great services— Adam Delmaro
A&S Nathan is a great company, and I highly recommend them for any and all heating and cooling needs. From the office staff to the installation crew, everyone was respectful, profes— Rich Gelfand
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A&S Nathan is a quality organization – a family business with a solid team across the board! They did the install for our newly renovated bar and not only were they flexible w— Joseph Joyce
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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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