Take Control of Your Comfort
Your thermostat is the “brain” of your heating and cooling system. With today’s smart thermostats and zoning devices, you can fine-tune comfort in every room while lowering energy bills. At A&S Nathan Heating & Cooling LLC, we install and configure advanced thermostat systems and HVAC zoning solutions that give you more control, flexibility, and efficiency.
Why Upgrade Your Thermostat or Add Zoning?
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Better Comfort – Eliminate hot and cold spots by controlling temperatures in different areas of your home.
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Smart Home Integration – Control your heating and cooling from your phone, tablet, or voice assistant.
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Energy Savings – Modern thermostats learn your habits and optimize efficiency automatically.
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Custom Scheduling – Program heating and cooling for your lifestyle.
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Increased Home Value – Smart HVAC upgrades are attractive features for buyers.
Our Thermostat & Zoning Services
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Smart thermostat installation (Nest, ecobee, Honeywell, and more)
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Wi-Fi thermostat setup and integration with your HVAC system
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Multi-zone HVAC system installation and zoning panel setup
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Retrofitting zoning dampers for existing ductwork
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Troubleshooting and replacing outdated thermostats
Why Choose A&S Nathan Heating & Cooling LLC?
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Licensed & Insured Technicians – Proper installation for seamless performance.
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Trusted Local Experts – Serving families across Fairfield, New Haven, and surrounding counties.
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Upfront Pricing – No surprises—just straightforward service.
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Financing Available – Affordable monthly options through Synchrony.
Service Areas
We proudly provide thermostat and zoning installation services across Connecticut, including:
Fairfield • Stratford • Trumbull • Shelton • Milford • Monroe • Newtown • Ansonia • Derby • Seymour • Orange • Beacon Falls • Bethany • Oxford—and beyond.
Upgrade to Smart Comfort Today
Don’t settle for outdated controls. Call (203) 555-1234 or click Book Appointment to schedule your thermostat or HVAC zoning installation with A&S Nathan Heating & Cooling LLC today.
We had an emergency and called A&S. They were busy like everyone else this time of the year. They made time to get out and give us an estimate so we could satisfy the insurance co.— Paul Neugebauer
nan— Ned Heberger
Amazing customer service that goes above and beyond year over year! We are a longtime customer and A&S has always exceeded our expectations!— Dawn Coppola
Nothing but amazing things to say about A&S Nathan. They were an absolute pleasure from quoting to completing the actual work. They’ve won my business and I will be sending an— Zach Cohen
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We’ve been customers of A&S Nathan for some time so the decision to use them was easy when it came to replace our boiler. The process was easy and the installation was quick and s— Bridget Stronge
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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
Great people to deal with! Professional, accommodating, and extremely knowledgeable! Will recommend to my friends and neighbors.— Mark Doug
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
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
Great service! I had no heat this morning and got a call back immediately and they came out very fast! They sent Dave out and fixed the issue without breaking the bank!— Luanne Mezzo
Had my oil tank replaced today, the whole experience was a pleasure, from the first phone call I placed to the installation everything went smooth, and the price was right. I highly rec— Jonathan Champagne
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I have been using A&S for over ten years plus for regular annual service as well as new installs. They have installed new A/c units , new HW heater and new gas furnace over the year— Henry Pensiero
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