Thermostats & HVAC Zoning Installation

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?

  • Better Comfort – Eliminate hot and cold spots by controlling temperatures in different areas of your home.

  • Smart Home Integration – Control your heating and cooling from your phone, tablet, or voice assistant.

  • Energy Savings – Modern thermostats learn your habits and optimize efficiency automatically.

  • Custom Scheduling – Program heating and cooling for your lifestyle.

  • Increased Home Value – Smart HVAC upgrades are attractive features for buyers.

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Our Thermostat & Zoning Services

  • Smart thermostat installation (Nest, ecobee, Honeywell, and more)

  • Wi-Fi thermostat setup and integration with your HVAC system

  • Multi-zone HVAC system installation and zoning panel setup

  • Retrofitting zoning dampers for existing ductwork

  • Troubleshooting and replacing outdated thermostats

 

Why Choose A&S Nathan Heating & Cooling LLC?

  • Licensed & Insured Technicians – Proper installation for seamless performance.

  • Trusted Local Experts – Serving families across Fairfield, New Haven, and surrounding counties.

  • Upfront Pricing – No surprises—just straightforward service.

  • 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Don’t settle for outdated controls.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.

Book an Appointment
5-star rating
7pm on a Saturday night & my furnace goes out. Who did I call? A&S Nathan of course. The tech was there promptly. Clean & professional. I had heat in less than an hour. Th
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— Paul Harris
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Received an immediate call-back and Mark was on-site to quickly fix our AC the next morning – all before the holiday weekend! Professional, friendly – and got the job done &
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— Charles Schif
5-star rating
The AC stopped working last night. Called at 8:00 this morning. Someone was here within the hour and fix was done by 9:30. They are by far the best we’ve ever dealt with!
— Susan Lampert
5-star rating
Fantastic customer service. Friendly, helpful, and their advice saved me from having another pipe burst at my house.
— Tim Reiss
5-star rating
Called A&S b/c furnace had been running rough for months. Scott & Robert were extremely easy to work with, professional, & very polite. Scott was very knowledgeable and to
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— Charles Ramik
5-star rating
Dan from the service dept repaired my heating system and was very professional. He explained the issue so I understood what he meant. He was polite and cleaned the area up nicely afterw
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— Tracy B
5-star rating
I used A&S Nathan to repair my a/c unit. They were there in what felt like a couple of minutes. Mark D was the guy that came out, he repaired my a/c without any problems.
— Chris Turner
5-star rating
Scott and Kyle from A&S Nathan did a great job finding and fixing a leak in my AC unit. They were professional, walked me through the issue and I will be using this business for my
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— Amaey J Mundkur
5-star rating
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
5-star rating
A&S has been doing my heating and AC for many years now. Awesome and quick service, very professional, everyone knows their stuff! Al & Jake are very knowledgeable with all the
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— Mike Tecci
5-star rating
To anyone that this may concern: I seldomly take the time to write a testimonial. However this company deserves my accolades for their exceptional service. Within the past two weeks I s
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— Robert Caetano
5-star rating
Mark came out and gave me a thorough explanation of my system and how it works. He also explained benefits of having certain contracts. Heather, & Barbara who I have all dealt with
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— Tony