Our Services
Complete residential heating and cooling service, repair, maintenance, and installation — plus the custom sheet metal and ductwork most companies can't do.
Straight Work,
Done Right.
From no-heat breakdowns to high-efficiency Amana® installs and the custom sheet metal most shops send out — it's all handled in-house, with upfront written quotes and no commissioned upsells.
Every Service We Offer
Furnace Repair & Heating Service
Fast diagnostics and honest repairs for gas, electric, and oil furnaces — ignition, blower motors, heat exchangers, and safety controls.
Air Conditioning Repair & Installation
Complete cooling repair, precision refrigerant diagnostics, condenser fan replacements, and new high-efficiency AC installations.
Heat Pump & Dual-Fuel Systems
All-season inverter heat pumps paired with gas furnace backup for lower propane and natural gas bills through every Illinois season.
Boiler & Hydronic Heating
Diagnostics, pump replacements, zone valves, and safety maintenance for residential hot water and radiator systems.
Custom Sheet Metal & Ductwork
Hand-fabricated transitions, oversized return drops, MERV13 filter racks, and static pressure remediation by a true sheet metal craftsman.
Seasonal Tune-Ups & Maintenance
Multi-point preventative maintenance that lowers utility bills, prevents breakdowns, and extends equipment life.
Mini-Split & Ductless Systems
Ductless inverter mini-splits for additions, garages, sunrooms, and homes without existing ductwork — quiet, efficient, zoned comfort.
Indoor Air Quality & Filtration
Whole-home filtration, UV treatment, and ventilation upgrades to cut dust, allergens, and stale air through every season.
Smart Thermostat & Controls
Wi-Fi and smart thermostat installation, wiring upgrades, and zoning controls that put comfort and savings in your hand.
Duct Sealing & Air Balancing
Leak sealing, register balancing, and static pressure testing to fix hot/cold rooms and stop conditioned air from escaping.
Humidifier & Dehumidifier Service
Whole-home humidifier and dehumidifier installation, pad replacement, and control repair for balanced indoor humidity.
24/7 Emergency Service
24/7 emergency service for no-heat freeze-ups and midsummer cooling failures — call anytime, day or night.
Whole-Home Ventilation
Energy-recovery ventilators, exhaust fans, and attic ventilation to bring in fresh air without wasting conditioned air.
CO & Combustion Safety Testing
Carbon monoxide testing, combustion analysis, and flue draft verification to confirm your heating equipment is venting safely.
All Brands
We service every make — not just what we install.
Upfront Quotes
Written price before any work starts. No surprises.
Custom Sheet Metal
Bent on-site — most shops can't do this.
Ready for Honest Heating & Cooling Service?
Call F5 Heating and Cooling for accurate diagnostics and dependable repairs across East-Central Illinois. No pushy sales commissions — just straight answers, fair quotes, and true sheet metal craft.
Gibson City · Melvin · Onarga · Gilman · Watseka · Milford · Manteno · Kankakee · Bradley · Bourbonnais · Peotone · Buckingham · Ashkum · Cullom