All service areas
LaSalle County, Illinois
HVAC repair in Ottawa, IL.
Ottawa's a 25-minute run for us, and we cover the whole town, from the homes near Allen Park to the newer builds on the east side. Heat pump installs have been popular here lately, and we're a Carrier Factory Authorized Dealer.
Services we provide in Ottawa.
Furnace repair & install
Same-day diagnosis on no-heat calls. Flat-rate pricing.
AC repair & install
From quick recharges to full system replacements.
Heat pumps
Energy-efficient heating and cooling in one system.
Ductless mini-splits
Perfect for additions, garages, or single rooms.
Maintenance plans
Twice-a-year tune-ups to keep your system running clean.
24/7 emergency service
We answer the phone nights, weekends, and holidays.
Why folks in Ottawa call Cardinal.
Licensed & insured
Illinois-certified techs, fully insured.
Upfront pricing
Flat-rate diagnostics. No surprises.
Local & reachable
Dave answers the phone. Always has.
Get a free estimate in Ottawa.
Fill out the form or just call. We answer 24/7.