What it actually takes to re-roof a house in Collinsville — whether the city wants a permit, which code edition applies, who to call at the building department, and how old the housing here really is. No sales copy dressed up as local knowledge.
Collinsville runs to about 15.4 square miles and roughly 24,031 people. It sits about 12 miles east of downtown St. Louis. There are around 11,644 housing units here, and every one of them has a roof with a clock on it. The community dates back to 1850. We cover ZIP code 62234.
We have not logged a completed roof in Collinsville yet. We would rather say so than put a number on this page that is not real.
The typical home in Collinsville dates to around the early-1970s. A house of that vintage has usually been through two or three roofs. It is also old enough that what is under the shingles matters as much as the shingles: plank decking, older flashing details, and layers someone went over rather than tore off.
Mostly mid-20th-century, with only about 17% of homes predating 1940.
German-American settlers arrived by Conestoga wagon in 1812; the town adopted a village charter in 1850 and became a city in 1872. The Brooks Catsup Bottle water tower, listed on the National Register of Historic Places, is the city's best-known historic structure.
The postwar housing in Collinsville is mostly straightforward to roof, which is why it gets done badly so often. Decking is usually 1x6 boards or early plywood, still sound but worth walking rather than assuming. The recurring problems are the low-slope sections — porch roofs, carport tie-ins, the flat bit over an addition — where a shingle was installed below its rated pitch and has been failing quietly ever since. Attic ventilation on houses of this era is also routinely short of what current shingle warranties require, and under-venting cooks a roof from underneath. We measure intake against exhaust before we quote rather than just nailing on a ridge vent and calling it solved.
Yes, and the mechanism is distinctive: roofing is handled under a 'Limited' or 'U' Permit, which the city describes as 'used for roofing, siding, windows, above ground pools, fences, sheds, etc.'.
Collinsville enforces the 2021 I-Codes. 'As of January 1, 2025, the City of Collinsville adopted the 2021 ICC Codes.' The adoption date lines up exactly with the Illinois statewide baseline effective date.
The published number is 618-346-5200. The building official on record is Kendrick Soer, Chief Building Official (618-346-5200 x1123). The department page is here.
Permitting is on us, not on you.
Unlike some states, Missouri does not assign each municipality its own wind and snow numbers — these are metro-wide.
| Criterion | Figure | What it drives |
|---|---|---|
| Ultimate design wind (Vult) | 115 mph | Fastener schedule and the manufacturer wind rating we specify |
| Nominal design wind (Vasd) | 89 mph (derived, not published locally) | The allowable-stress figure older specs quote |
| Ground snow load | 20 psf | Structure, and how much the eaves hold in a freeze-thaw |
| Frost depth | 30 in | Footings, not roof covering |
| Seismic design category | C residential / D commercial | Lateral bracing and structural connections — not shingles |
What each of these actually does to a roof, why New Madrid does not change how shingles go on, and the difference between the code minimum and the manufacturer minimum on nails per shingle, are all in the St. Louis roofing code guide.
Collinsville borders Maryville, Pontoon Beach, Fairmont City and Caseyville.
Elsewhere in Madison County we also cover:
Missouri sets none of this at state level, so a specification that was right one municipality over is not automatically right here.
| City | Permit for a re-roof | Adopted code | Building dept. |
|---|---|---|---|
| Alton | Not published | 2021 IRC | 618-463-3500 |
| Edwardsville | Not published | 2021 IRC | — |
| Glen Carbon | Not published | Not published | 618-288-2603 |
| Granite City | Not published | 2012 IRC | 618-452-6218 |
Free inspection, a written scope, and photos you keep either way.
Yes, and the mechanism is distinctive: roofing is handled under a 'Limited' or 'U' Permit, which the city describes as 'used for roofing, siding, windows, above ground pools, fences, sheds, etc.'.
Collinsville enforces the 2021 I-Codes. 'As of January 1, 2025, the City of Collinsville adopted the 2021 ICC Codes.' The adoption date lines up exactly with the Illinois statewide baseline effective date.
The typical home in Collinsville dates to around the early-1970s, so most roofs here are on their second or third covering rather than their first. That figure is an ACS-derived median republished by housing-data services, not a survey of individual roofs.
Not yet. We have no completed roof logged in Collinsville, and we would rather say so than put a number on this page that is not real.
Illinois licenses roofing contractors statewide under 225 ILCS 335, so any roofer working here needs a current IDFPR roofing licence. Missouri, across the river, does not licence roofers at the state level at all.
Permit and code details for Collinsville come from the jurisdiction's own published pages and codified ordinances. Population, housing and neighbourhood detail come from census data and the sources below; housing-age figures are ACS-derived medians republished by housing-data services, so treat them as approximate. Sources: www.collinsvilleil.org · www.collinsvilleil.org · library.municode.com · en.wikipedia.org · www.ci.collinsville.il.us · censusreporter.org · www.point2homes.com. Municipal staffing, phone numbers and adopted code editions change — confirm with the jurisdiction before relying on anything here.