About DeKalb County HVAC

Who We Are

DeKalb County HVAC is a locally owned heating and cooling company serving DeKalb, Sycamore, Cortland, Genoa, and the surrounding communities. We started with a simple idea: show up the same day, quote the price upfront, and do the job right the first time.

No call centers. No upsell scripts. Just experienced heating and cooling techs who work on home systems all day, every day — and who'd rather earn your repeat business than squeeze an extra dollar out of one visit.

What We Stand Behind

• Fast service — most calls handled the day you reach out
• Upfront pricing — you approve the price before work starts
• All major brands — Carrier, Trane, Lennox, Goodman, Rheem, and more
• Emergency help — nights and weekends when the weather won't wait