Proudly serving Fairfield County

for over 45 years


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Exceptional HVAC Service for over 45 years

Custom Air Systems, Inc. has been serving the residents of Fairfield County for over 45 years. Contact us for your heating and cooling needs.

If it heats — we work on it. Call us for a FREE estimate. We install and repair all heating systems.

You'll be cool and comfortable with air conditioning installed by us.

Ensure your heater and air conditioning unit work all year round. Sign up for our maintenance program.

We offer 24 hour emergency service so don't wait until the office opens. Call now and we'll fix it.

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Custom Air Systems did a professional job. The price was great the install was clean and done in a timely manner. Lennox was a great choice for the budget I was working with. I couldn't be more happy.