Signs you need it
- Ponding water after rain on a flat roof
- Open seams or failed flashing at rooftop units and parapets
- Ceiling stains below drains, units or roof edges
- A roof near the end of its warranty, with a lease or sale coming up
The county around Bloomington has 6 roofing companies with payroll, lower than 89% of the cities we cover. 23 local roofers are listed, 11 license-checked.
Commercial roofing covers retail, office, warehouse, church and multi-family buildings. Most of these roofs are flat or low-slope and use single-ply membranes, modified bitumen, built-up roofing or standing seam metal.
Crews, materials and warranties differ from house roofing. A company that is good on shingles may not be the right one for a membrane roof.
The county has fewer roofing companies with payroll than most cities we cover, so a commercial job may draw few bidders. Ask early who will bid, and whether nearby companies will travel.
A large share of Bloomington's housing sits outside single-family houses, so flat and low-slope roofs are common. Ask every company about its experience with your type of building, not only with houses.
| Fact | Bloomington | Median city | Rank (1 is highest) |
|---|---|---|---|
| Housing units outside single-family houses | 39.4% | 33.2% | 53 of 213 |
| Days with wind gusts of 58 mph or more | 54 | 50 | 94 of 212 |
| Days with hail of 1 inch or more | 19 | 16.5 | 94 of 212 |
| Roofing companies with payroll in the county | 6 | 18 | 187 of 210 |
May has the most reports, 33 of 83. 88% of reports fall from March to July; the other 10 come in 5 other months.
The largest stone in NOAA's record for McLean County fell on May 11, 2014: 2.75 inches, about the size of a baseball.
That day brought 3 reports, with the largest from Towanda.
A commercial roof laid before May 2014 was in place for the largest stone in the record, so ask for a roof survey and keep it with the warranty papers.
The strongest tornado in the record was rated EF2 on December 1, 2018 and stayed on the ground for 2.44 miles.
The strongest thunderstorm gust was 96 mph, on July 15, 2024.
| Date | Largest hail | Reports | Where |
|---|---|---|---|
| May 11, 2014 | 2.75 in, a baseball | 3 | Towanda |
| May 15, 2025 | 2.5 in, a tennis ball | 26 | Normal |
| April 19, 2023 | Size not confirmed | 7 | Le Roy |
A commercial roof is priced by the building: its area, membrane, insulation, drainage and rooftop equipment. One range per city would mislead.
Ask each company for a written scope and a price per square foot of roof, so bids can be compared line by line.
Estimates for a 2,000 square foot roof, not quotes. How we build them6 of 23 listed, license-checked first. They are based in Bloomington (4), Clinton, Normal. We do not tag companies by service, so ask each one about commercial roofing.
License number 104019050
1312 N Main St, Bloomington, IL 61701
License number 104018464
4841 Tunbridge Hill Rd, Clinton, IL 61727
License number 104003312
1111 Woodbury Pl, Bloomington, IL 61701
License number 104020397
1206 S Adelaide St #3, Normal, IL 61761
License number 104018406
201 W Chestnut St, Bloomington, IL 61701
License number 104018814
Permit requirements depend on the property, scope of work and local jurisdiction. Check with the city or county building department and confirm who will obtain any required permit before work starts.
Send one free request. We offer it to one local company at a time. We can't promise when a roofer will call.