Proudly serving Fairfield County

for over 45 years


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At Custom Air Systems, Inc., we work on all types of heating and cooling systems. These include boilers, radiant heat products, furnaces, heat pumps, geothermal and ductless mini split heating systems, and more. You'll find thermostat services and zone control systems here as well. Plus, we install and repair air conditioning units. We make sure your home is cool during the warm months. Call today for an appointment and a FREE estimate.

Discover the Benefits of Working With Us

  • 24/7 emergency service

  • Large parts inventory

  • Residential

  • Commercial

  • Service contracts

  • Maintenance

  • Boilers

  • Radiant heating systems

  • Furnaces

  • Heat pumps

  • Geothermal systems

  • Ductless mini split heating

You can be sure we'll work on your system

Find Us on Facebook or Call and Make an Appointment.