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 Whether you’re replacing an outdated unit, upgrading for better efficiency, or switching from oil to gas, our licensed team will get the job done right.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.
The crew did an excellent job during my conversion from oil to propane. The work was of the highest quality and they completed it in a timely and organized manner.— Francois Polica
We had several things done/installed in one day. Ian was fantastic coordinating the entire project. Then he took time to explain everything to us. Heather in the office is so accommodat— linda hooper
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Our technician Dave was incredible. I’ve done some plumbing myself but watching him work was a pleasure. He arrived on time, was skilled and efficient and patiently explained what— Maria Rubino
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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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Very satisfied with installation and service.— starry night
Scott came out right away to check that our system was working efficiently and also upgraded our Prehistoric thermostats. Scott, along with everyone in the office, was friendly and prof— JCBouton
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Contacted Jake at A&S on a Wednesday that I needed my hot water heater to be cleaned and they told me with the holidays they were 4-6 weeks out.— Mikey DeLeon
Always a great experience from A&S!!! Heather walked us through our options and Scott arrived the next morning promptly as described . Within one hour, everything was rectified, and— Tom Fatone
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Great service— paul grey
Fantastic customer service. Friendly, helpful, and their advice saved me from having another pipe burst at my house.— Tim Reiss
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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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
