Contact Us

Contact GSHA Services, LTD to schedule service or discuss an installation. Call main dispatch at 224-220-3660. For emergency heating, cooling or electrical service, call dispatch. The service call is $99 for furnace and air conditioner diagnostics; other equipment varies, and a standby generator diagnostic is $250. Calls received 5:00 PM to 7:00 AM on weekdays and all day Saturday, Sunday and holidays carry an after-hours fee, quoted by phone before we dispatch; it does not apply to pre-scheduled tune-ups.

GSHA Services, LTD is a family-owned company with locations in Woodstock and Lake Bluff, Illinois, serving homes and businesses across Chicagoland and southeastern Wisconsin. We provide heating and air conditioning installation, repair and maintenance for furnaces, AC systems, heat pumps, boilers and ductless mini-splits. Our services also include standby generator installation, repair and maintenance; electrical panel upgrades and EV charger installation; tank and tankless water heaters; water filtration and softeners; air duct and dryer vent cleaning; and Aeroseal duct sealing. We help customers maintain comfort, hot water, indoor air quality and dependable backup power.