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Troubleshooting and replacing outdated thermostats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 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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Can’t say enough positive things about this company. From the initial phone inquiries to the install, they were professional and courteous. Installers explained everything they ha— Beverly Smith
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Dave was amazing! Honest and quick to fix the problem! Thank you— Michele Ambrosini
A&S is simply the best. They have been doing yearly service on my furnace at my shop for years. They installed central air at my house 2 years ago. From service to installation, the— Jay Tillman
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Highly recommend A&S Nathan Heating & Cooling LLC. Hot water tank sprung a leak over night. Called the office when they opened. Toni was a delight to speak with. Friendly and up— Kevin Marron
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I would highly recommend A&S for all HVAC/A/C services!— Bob Amberg
Craig Andrews is the best tech! Appreciate his thoroughness and attention to detail!— Elizabeth Honcharik
Of course A/C always breaks on the hottest most humid day of the summer. I have not previously been a customer and called based on the recommendation of a friend. I left a request on th— John S
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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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Quick response and very professional service— Richard Boucher
Time and time again, Al and his team of professionals go above and beyond to get the job done timely and effectively. Highly recommend!— Emily Moore
A&S Nathan has been great in the past servicing my Boiler, but this was the first time for my AC split system. Scott the service technician had and impressive knowledge of my AC uni— Doug Walz
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