Why Choose L.E.S.

L.E.S. Heating & Air is a full-service HVAC contractor that has been serving the Chicagoland area since 1996. Over that time, we have built a reputation for fairness, competence, quality, and reliability.

Our service department is there for you and your family around the clock, providing you comfort with up-front pricing and no hidden charges. Our technicians periodically receive refresher training and learn about new HVAC technology.

Our construction department has been active in both the Residential and Commercial markets for over a decade with experience on projects with values in excess of $500,000. We would love an opportunity to bid your project, whether small or large.

Customer Reviews

Very willing to work with you on pricing and project specifics; flexible, all workers very conscientious, prompt and sales rep/owner present to see all goes well.
Charles Z., Brookfield

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    HVAC Quick Fixes

    • Check your thermostat. Make sure it is set to Heat, Cool or Auto and the temperature is set correctly.
    • Check the power. Make sure the power switch on the unit and the circuit breaker are set to 'on'.
    • Check your air filter. Filters should be changed every 1-3 months (depending on type).
    • Check your gas (heating). Make sure that gas is turned on at the meter & near your equipment.
    Still having trouble? Contact Us

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