Heating, cooling & home services.
From a furnace repair to a new air conditioner or backup generator, get help keeping your home comfortable and ready for every season.
Need help now? Call (224) 220-3660
“Service technician was on time and professional throughout the service explaining what he was doing.”Mark A · January 12, 2026 · Read BBB reviews
What can we help you with?
Choose a service to find the right next step.
Heating & cooling
Installation, repairs and seasonal care.
Generators
Backup power for your home.
Electrical
Power upgrades and home charging.
Plumbing
Hot water systems for everyday comfort.
Indoor air quality
Humidity, filtration and duct solutions.
Water quality
Treatment and filtration for your home.
See our work.
Heating, cooling and backup power installations by GSHA.
Carrier air conditioningExplore this installation
This GSHA project features an outdoor Carrier air conditioner beside a home. Considering a new system or need help with your current unit?
Explore Carrier air conditioners →Get air conditioner repair →Lennox home heatingExplore this installation
A Lennox furnace installation featured by GSHA, with the company’s service label on the equipment. Explore replacement options or get help with furnace care.
Explore heating services →Plan furnace maintenance →Generac backup powerExplore this installation
This installation features a Generac standby generator beside the home. Learn about planning backup power or keeping an existing generator ready.
Explore generator installation →Schedule generator maintenance →Local service for homes & businesses.
GSHA Services, LTD is a family-owned company with locations in Woodstock and Lake Bluff, Illinois, serving Chicagoland and southeastern Wisconsin.
We install, repair and maintain furnaces, air conditioners, heat pumps, boilers, ductless mini-splits and standby generators. Our services also include electrical panel upgrades, EV charger installation, tank and tankless water heaters, water filtration and softeners, air duct and dryer vent cleaning, and Aeroseal duct sealing.
Explore products & brands.
Find equipment options and installation information for your home.
Chicagoland &
southeastern Wisconsin.
Serving communities including Woodstock, Crystal Lake, Lake Bluff, Lake Geneva and Kenosha. Contact us to confirm service availability at your address.
View cities & ZIP codesIllinois communities
Woodstock
Crystal Lake
Lake Bluff
Arlington Heights
Wisconsin communities
Lake Geneva
Kenosha
Pleasant Prairie
Burlington
Start with a free
in-home estimate.
Tell us what you want to improve. Get an installation estimate with no cost or obligation, and explore the options for your home.
Tell us about your installation.
Request a free in-home installation estimate using the form below. For repairs or maintenance, schedule service online or call (224) 220-3660.