HVAC Cost in Marengo, IL in 2026
Most HVAC projects in Marengo, IL cost between $5,500 and $17,000. The typical price is $9,500.
Labour and materials in Marengo run about 10% above the national average. These figures are adjusted for that, so they are not the national average you will find elsewhere.
What drives the price
- System size in tons and efficiency rating
- Heat pump versus furnace plus AC
- Ductwork condition and whether it is replaced
- Electrical or gas line changes
Usually included
- Equipment and refrigerant lines
- Installation, startup and commissioning
- New thermostat
- Haul-away of the old unit
Usually extra
- Duct replacement
- Electrical panel upgrades
- Permits and inspections
HVAC contractors in Marengo, IL
Businesses listed on Google near Marengo, IL. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
Air Man Heating, Cooling & Plumbing
4.9(441 reviews)
1030 Greenlee St, Marengo, IL 60152
Shadow Heating and Cooling
5.0(245 reviews)
334 E Grove, Hampshire, IL 60140
Woodstock Heating and Cooling, LLC
5.0(103 reviews)
7115 S Virginia Rd Ste 110, Crystal Lake, IL 60014
Assured Appliance & Heating & Air
4.8(66 reviews)
121 N Emmett St, Genoa, IL 60135
PBK Mechanical Services
5.0(27 reviews)
31912 Glidden Rd, Kingston, IL 60145
M.D. Capes Quality Heating & Air Conditioning
5.0(14 reviews)
729 Hawthorne Ln, Genoa, IL 60135