Chicago is one of the deepest commercial real estate markets in the country, and the work runs the full range: downtown high-rise base-building and tenant fit-outs across the Loop and River North, restaurant and retail buildouts in Fulton Market and along the neighborhood corridors, logistics and light-industrial space near O’Hare and the I-55 and I-90 corridors, plus the hospitals, universities, and municipal facilities that keep mechanical contractors busy year-round. Almost every one of those projects leaves a permit before it reaches a formal bid.
Where the Chicago-area work shows up first
Chicago is unusual in how much it publishes. The city’s building-permit dataset is open and refreshed daily, with the street number, direction and street name broken out, so each address pins to a building on a map. That’s the feed we watch most closely. Around it sits Cook County and the collar counties (DuPage, Lake, Will, Kane, and McHenry), each with their own permit and property records. You activate the counties you serve and we turn them on.
What public records reveal in this market
Across Chicago and the surrounding counties, the same four signals drive commercial HVAC work:
- Building & mechanical permits: rooftop unit replacements, new mechanical systems, and commercial alterations across the city's office, retail, restaurant, industrial, and institutional buildings, pulled daily from the City of Chicago open-data feed.
- Commercial property transfers: buildings changing hands across Cook County mean new owners planning renovations and system upgrades.
- New business registrations: Illinois business filings that signal commercial buildouts needing HVAC.
- Public & institutional bids: school districts, the city, the county, and state agencies putting mechanical work out to bid across the metro.
Why a permit beats a shared lead in Chicago
The usual lead services sell the same homeowner furnace call to several shops at once, and almost none of it is commercial. A permit is dated and tied to one address, and it tells you mechanical work is moving. You see it early enough to reach the owner or general contractor before a bid list forms, and every opportunity carries its public source so you can verify it yourself.
Get started in your part of the Chicago metro
Tell us which Chicago-area counties you serve and we’ll switch them on. Your feed then fills with commercial HVAC opportunities, each linked to its public record. Each county goes to one contractor, so what you hold is yours alone, and if a week is quiet, your dashboard says so. You can look at the sample before you commit.
Chicago commercial HVAC leads, common questions
Where do Chicago commercial HVAC leads come from?
The City of Chicago publishes its building permits as open data, refreshed daily. We read that feed every day, along with Cook County and collar-county permit and property records, and pull out the filings with real commercial HVAC scope, each with its full street address and a link to the public permit.
Which counties around Chicago are covered?
Cook County plus the collar counties (DuPage, Lake, Will, Kane and McHenry), each with their own permit and property records. You activate the counties you serve and we turn them on.
Is my county exclusive to me?
Yes. Each county goes to one contractor, so what you find there is yours and never resold to other shops in your territory.
How is this different from a shared lead service?
Shared-lead services sell the same homeowner furnace call to several shops at once, and almost none of it is commercial. A permit is a public, dated, address-specific signal that real mechanical scope is in motion, and every opportunity we surface carries that public source so you can verify it yourself.
Month to month · cancel anytime · every opportunity shows its public source.