HVAC Cost in Plainfield, IL in 2026
Most HVAC projects in Plainfield, IL cost between $5,500 and $17,500. The typical price is $10,000.
Labour and materials in Plainfield run about 14% 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 Plainfield, IL
Businesses listed on Google near Plainfield, IL. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
TR Miller Heating, Cooling, Plumbing and Electrical
4.9(11,971 reviews)
11917 S Aero Dr, Plainfield, IL 60585
Comfort Services Heating & Air Conditioning
4.8(1,525 reviews)
12461 S Industrial Dr E, Plainfield, IL 60585
Precision Air
4.9(686 reviews)
12515 Rhea Dr, Plainfield, IL 60585
OC Property Solutions Heating, Cooling, Plumbing, & Electric
5.0(308 reviews)
10261 Mandel St C, Plainfield, IL 60585
Deljo Heating, Cooling & Plumbing
4.9(254 reviews)
24125 111th St #600, Naperville, IL 60564
CW Mechanical, LLC
5.0(152 reviews)
1705 Red Maple Dr, Plainfield, IL 60586