Proudly serving Fairfield County

for over 45 years


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Any heating and cooling firm can install an air conditioning unit, it's the rest of the stuff that counts. That's why you'll be impressed with our expert technicians and our great customer service. Our customers say it best so take a moment to read what they wrote. Then, call Custom Air Systems, Inc. for your air conditioning needs. We work on all kinds of cooling systems and offer 24 hour emergency service. We offer maintenance programs as well.

Amazing Service and First Rate Cooling Systems

"Your company installed all new duct work and a Lennox air conditioning system in my home. Thank you for doing an outstanding job."

- Gregory Sobotka

  • Thermostats and zone systems

  • Heat pump installation and replacement

  • Heat pump repair and maintenance

  • Air conditioning installation and replacement

  • Air conditioning repair and maintenance

  • Ductless mini split systems and geothermal systems

Your home will be as warm or cool as you desire

Get 24/7 Emergency Service and Over 45 Years of Experience from Us.