Data report
84 hvac permits were filed in Cook County (Suburbs) during 2024 — 65 contractors are named in the record, and these are the most active, ranked by the permits each pulled. Every figure comes from public building-permit records, not self-reported activity.
84 total permits · 65 verified contractors
Year over year
HVAC permits in Cook County (Suburbs) fell 92% versus 2023, from 1,085 to 84 permits.
HVAC leaderboard · 2024
Method
Every figure is drawn from public building-permit records filed in Cook County (Suburbs). A permit is counted once, by the contractor named on it. Installer names are grouped so minor spelling and entity-suffix variations (for example “Inc” vs “Inc.”) count as one company. This is recorded work, not survey data or self-reported claims, and it is reproducible from the public record.
Caveats
A permit reflects a job filed with the local building department. It is a strong proxy for installation activity but is not identical to completed work. Coverage is built from the records each jurisdiction publishes, so a contractor working without listing a name on the permit will not appear here.
Share this report
Use this data
Free to republish with credit. A link back is all we ask — click to copy a ready credit you can paste into any post.
Pastes as: Data: Proven Pros (linked to this report)
<iframe src="https://provenpros.co/embed/report/il-cook-county-suburbs-hvac-2024" width="100%" height="420" style="border:0;max-width:520px" title="The busiest hvac contractors in Cook County (Suburbs), IL (2024) — Data by Proven Pros" loading="lazy"></iframe>See the full permit-verified track records behind these numbers: hvac and other contractors in Cook County (Suburbs), see typical hvac costs in Cook County (Suburbs), or browse all of Illinois.