What HVAC replacement costs in Waterloo
Construction pricing in Illinois runs 6% above the national average, so HVAC replacement here typically lands between $10,070 and $17,490 installed, before rebates.
Figures are modeled from 2026 national baselines adjusted by a Illinois cost factor of 1.06. They are estimates for comparison, not quotes — your property, access and material choices move the real number.
HVAC Contractors serving Waterloo
Ranked by Google review volume. Listings are sourced from public business data; those marked Verified member have claimed and confirmed their listing with us.
- Miller Heating & Cooling
- DUCTZ of the Metro East
- Brinkmann Heating And Cooling
- Jaenke Heating & Air Conditioning
- Bradley Johnson Climate Control
We don't rank by who pays us. Always confirm a contractor's license and insurance before hiring.
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