Heating and Cooling Services in Illinois and Wisconsin

Delivering trusted home heating and cooling services in Illinois and Wisconsin for over 20 years. Our licensed and insured technicians specialize in furnace installation, AC installation, heat pump installation, boiler installation, package unit installation, and ductless HVAC solutions across IL & WI. Request a Free Estimate

Why Choose GSHA Services for Home Climate Control Solutions

With over 20 years of experience delivering heating and cooling services in Illinois and Wisconsin, our licensed and insured technicians provide reliable climate control solutions. Furthermore, we take pride in:

• ✔️ Installing energy-efficient HVAC systems that lower utility bills
• ✔️ Using proven brands—Lennox & Carrier—for superior performance
• ✔️ Offering 24/7 emergency service, repair, and maintenance for all makes and models
• ✔️ Providing transparent pricing, upfront quotes, and no hidden fees
• ✔️ Delivering exceptional customer service and workmanship you can trust

Comprehensive HVAC Services for Illinois & Wisconsin Homes

We specialize in home heating and cooling solutions throughout Illinois and Wisconsin. Consequently, our IL & WI HVAC services include:

Furnace Installation & Repair

To keep your home warm during frigid winters, rely on our expert furnace installation services. Moreover, we install high-efficiency gas and electric furnaces from trusted manufacturers. Furthermore, whether you need a new furnace installation or a replacement, our technicians ensure optimal performance and energy savings. Learn more about furnace installation.

Air Conditioner Installation & Repair

Beat the summer heat with professional cooling services in Illinois and Wisconsin. Additionally, we fit central air units, rooftop package units, and split-system ACs to match your home’s needs. Furthermore, all installations follow manufacturer guidelines to maximize lifespan and efficiency. Learn more about AC services.

Heat Pump Installation & Maintenance

Enjoy year-round comfort with a modern heat pump system. Consequently, our heat pump solutions in IL & WI include sizing, installation, and annual tune-ups, ensuring peak efficiency in both heating and cooling modes. Learn more about heat pump solutions.

Boiler Installation & Repair

For homes with hydronic heating, we install and repair high-performance boilers. Whether you need a replacement or emergency boiler repair, our team maintains safe and reliable operation throughout Illinois and Wisconsin. Learn more about boiler installation.

Package Unit Installation & Service

Ideal for commercial spaces, package units offer all-in-one heating and cooling for IL & WI businesses. Furthermore, we install new package units and service existing systems to keep your facility comfortable. Learn more about package units.

Ductless Mini-Split Installation & Repair

Ductless mini-splits deliver efficient climate control for homes without ductwork. Additionally, we design custom systems and provide installation, leak detection, and repairs throughout Illinois and Wisconsin. Learn more about ductless systems.

Trusted Brands for Heating & Cooling in Illinois & Wisconsin

As an authorized dealer for Lennox and Carrier, we offer exclusive access to advanced HVAC equipment. Consequently, our IL & WI customers benefit from factory-trained technicians who ensure proper warranty registration.

• Lennox: Cutting-edge furnaces, air conditioners, heat pumps, and smart thermostats known for efficiency and reliability.
• Carrier: Innovative heating and cooling systems with quiet operation and long-lasting performance.

Learn about rebates and energy incentives at the AHRI website.

Service Area for Illinois & Wisconsin HVAC Solutions

We provide heating and cooling services throughout Illinois and Wisconsin. Consequently, our service areas include:

• Illinois: Chicago, Rockford, Peoria, Champaign-Urbana, Springfield, Aurora, Joliet, and surrounding suburbs.
• Wisconsin: Milwaukee, Madison, Green Bay, Kenosha, Racine, and the Fox Valley region.

If you don’t see your city listed, please contact us—we likely service your area!

HVAC Repair & Maintenance Across IL & WI

Routine tune-ups and timely repairs are essential for long-lasting heating and cooling systems. Consequently, our preventive maintenance plans for Illinois and Wisconsin homes include:

• ✔️ Annual heating and cooling inspections
• ✔️ Filter replacements and air quality checks
• ✔️ System cleaning, lubrication, and safety tests
• ✔️ 24/7 emergency repair services

From Carrier and Lennox to Trane, Rheem, Goodman, and beyond, we service all major HVAC brands in IL & WI. Furthermore, avoid unexpected breakdowns, improve indoor air quality, and reduce energy costs with our comprehensive plans. For efficiency tips, visit the U.S. Department of Energy.

Get Your Free Installation or Repair Quote Today

Whether you need a new installation or emergency repair, our certified technicians are ready to help. Fill out the form below or call us at (224) 220-3660 to schedule your appointment. Full Name* Email Address* Phone Number* Service Interested In* Select One… Furnace Installation Air Conditioner Installation Heat Pump Installation Boiler Installation Package Unit Installation Ductless Installation Repair & Maintenance Additional Details Submit & Get a Quote

Certifications & Affiliations

• ✔️ Lennox Premier Dealer
• ✔️ Carrier Factory Authorized Dealer
• ✔️ NATE-Certified Technicians
• ✔️ BBB Accredited