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 Whether you’re replacing an outdated unit, upgrading for better efficiency, or switching from oil to gas, our licensed team will get the job done right.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.
Paul was very knowledgeable, thorough, and professional. Highly recommended!!!— Anthony Testani
This is a long review, but I wanted to highlight a few people and provide examples of why I gave A&S five stars. If you want the summary, skip to the last paragraph. Two days before— Patt Miller
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Craig did a great job on our annual service. They have always been efficient and helpful when our AC or heat has issues.— Nicole Valentine
very happy with them !— christina scappini
Very fast and prompt Very great services— Adam Delmaro
The AC stopped working on the hottest day of the year at my business. I figured I would never find anyone to come out same day. I spoke with Allen and had them come out within 2 hours o— Lori Weaver
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Thank you to David and his team who came out quite early on a bitter cold and snowy day. Our boiler stopped working on Sunday and they were able to come on short notice to get it up and— Maria Esteves
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The representatives were courteous, knowledgeable and explained everything clearly— Marilyn Stephens
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— Amy Joyce
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These guys absolutely Rock!! They installed a new Weil-McClain boiler today, to replace my 30 year old unit. Workmanship was superb! They were clean, professional and indeed craftsman.— Jason Dokla
I’ve been using A&S Nathan since i moved into my home 11 years ago for all heating and Air Conditioning Services. From the office staff to the technicians they are a A+ busine— Customer Service
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I have used A&S for several years now, mostly for general system maintenance but also for replacement of a tankless water heater. They are always on-time, professional, and do great— John N
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