Credit Cards Financing Available!

Residential Heating & Air Conditioning Professionals

We are in the comfort business and provide peace of mind

We offer financing, and we accept credit cards, checks, and cash

Quality Doesn't Cost, It Pays!

Furnace & Heating


Gas Furnaces, Electric Furnaces, Heat Pumps, Geo-Thermal, Garage Heaters, Infra-Red Heaters, Radiant Heat, Wall Furnaces, Pool Heaters, Hot Water & Steam Boilers, Mobile Home Furnaces and much more here!

Air Conditioning


Central Air Conditioners, Air Handlers, Heat Pumps, Geo-Thermal, Ductless Air Conditioning Mini-Split Systems, Spacepak Units, Dehumidification Units, Pool Room Units, Packaged Unites, Mobile Home A/C

Indoor Air-Quality


Air Cleaners, Energy Saving Thermostats, Humidifiers, Germicidal Lights, Zoning Systems, Dehumidification Systems, Air Purifiers, Energy Saving Controls, Carbon Filters, Exhaust Fans, Duct Cleaning & more!

Real People. Real Stories

"My furnace (both heating and A/C) stopped working after a small internal fire. Not only did they come right out and repair the problem, but the bill was far less than I expected (only charged me 80 bucks labor for two visits and repair). On top of that they explained exactly what the problem was, cleaned out my furnace for no charge, and suggested what I might need in the future with zero pressure to buy. Love my experience and plan to use All Star everytime in the future."
Fred-DeKalb, IL

Our Service Area

Air Conditioning

Service now in the cities of DeKalb, Sycamore, Cortland, Waterman, Genoa, Kingston, Kirkland, Maple Park, Creston, Malta, Hinckley, Rochelle, Belvidere, Lee, Sandwich, Somonauk, Sugar Grove, Clare, Shabbona, and Esmond