As of Oct 20, 2026, the estimated replacement cost is $6,000–$14,000 (typical $10,000) for this example (Roof area: 2,000 square feet; Asphalt shingles) on national figures; the dataset covers 4,243 licensed roofing contractors across 125 areas, 200 with full profiles here.
For homeowners planning a roof replacement: check a roofer's state license and discipline record and estimate a replacement budget by roofing material.
Dataset: Active roofing contractor licenses from IDFPR with a business address in Illinois (4,243 records). Profile pages only for records with at least 3 of: discipline record, licensed for, license scope on their source record: 4,149 of the 4,243 licensed roofing contractors; 200 of those have pages: profile pages are capped at 200 in this phase, so the other 3,949 are without a profile page; area pages list them in a table, up to a limit per page; the largest areas first got 4 each (so each can have its area page), then the rest of the cap was shared among all areas in proportion to their listings, each area's in the order below. The rest are counted on their area pages, which name up to 150 records each. Order: contractors whose record holds the most (disciplinary case detail, a trade name, the county) first; within each group, the oldest license (by the date IDFPR first issued it) first. Verified Oct 20, 2026.
4,149 of 4,243 records have license scope (unlimited (all property types): 2596; limited (residential, 8 units or fewer): 1553); 94 have none on the source record.
Estimated replacement cost
$6,000–$14,000 (typical $10,000) for this example: Roof area: 2,000 square feet; Asphalt shingles.
From national figures by HomeAdvisor roof replacement cost guide (cost by material table); the calculator shows each source and date. An estimate, not a quote.
Finding: As of Oct 20, 2026, 4,058 of the 4,243 licensed roofing contractors across 125 areas in our dataset (96%) have discipline record “No discipline on record”, and 185 (4%) have “Discipline on record”. Chart, method and citation.
On national figures: $6,000–$14,000 (typical $10,000) for this example (Roof area: 2,000 square feet; Asphalt shingles), as of Oct 20, 2026, from HomeAdvisor roof replacement cost guide (cost by material table). The calculator shows each cited rate and changes with your inputs; it is an estimate, not a quote.
How many licensed roofing contractors are listed across 125 areas?
4,243 licensed roofing contractors across 125 areas are in the source data as of Oct 20, 2026; 200 have full profiles on this site.
Where does this information come from?
Listings: IDFPR Professional Licensing (data.illinois.gov) (Open Database License (ODbL)), last verified Oct 20, 2026; each profile links to its source record. Cost figures: HomeAdvisor roof replacement cost guide (cost by material table), national figures quoted with their dates on the calculator page.