White bungalow with a dark gray shingle roof, covered front porch and green lawn
St. Clair County · Illinois

Roofing in Swansea, Illinois

Roofing for Swansea homes: replacement, leaks and storm damage. In Swansea, the 2006 IRC is in force and the median home was built in 1993. Any permit the job needs is ours to pull.

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Roofing services in Swansea

What we do on Swansea roofs.

Several roofers working across the roof of a ranch house with an attached garage

Roof replacement

63% of homes here predate 2000

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Flat roof with fresh gray membrane and stacked insulation boards beside a brick parapet

Flat & low-slope

11% attached or in 2–9 unit buildings

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Swansea at a glance

Permit for a re-roof
Yes
St. Clair County
Adopted code
2006 IRC
Set locally, not by the state
Homes here
6,175
Census count
Median year built
1993
Census estimate

Swansea runs to about 6.47 square miles and roughly 14,445 people. It sits about 12 miles east of downtown St. Louis. The community dates back to 1886. We cover ZIP code 62226.

No completed roof in Swansea is logged in our job records yet.

The housing stock in Swansea

Although Swansea incorporated in 1886, its housing is a later 20th-century Metro East bedroom-suburb build-out rather than a preserved 19th-century core.

Swansea, originally called 'New Swansea,' incorporated on December 20, 1886, specifically so residents could avoid annexation by Belleville.

Where late-century roofs leak

From this stretch of building, houses in Swansea sit on plywood or OSB, were first roofed in three-tab shingles, and are mostly on their second roof now. Trouble tends to be at the penetrations rather than across the field: the rubber collar on a pipe boot splits years before the shingles give out, and it is the leak we trace most often. Ridge vents were hit and miss in these decades, and OSB that stays damp for a season softens in a way plywood does not, something you feel underfoot rather than see from the yard.

The houses we roof in Swansea

Built before 1940
5%
313 of 6,175 homes
Built 2000 or later
37%
2,268 homes
Single-family detached
70%
4,302 houses
Owner-occupied
73%
4,243 of 5,777 lived in

Swansea has 6,175 homes in the Census Bureau's count and a median year built of 1993. 313 of them (5%) went up before 1940 — 26th of 48 places on this site for pre-1940 share — and 2,268 (37%) in 2000 or later. The 2000s were the busiest decade, adding 1,378 of today's homes (22%). That is below St. Clair County's 13%.

About 25 years is the usual working life of a roof, by the figure Missouri's insurance department publishes. That puts 3,907 homes in Swansea, the 63% built before 2000, past at least one full roof life, and the 1,516 built before 1970 (25%) are usually on a third covering or later. The 1,378 homes from the 2000s are where first replacements come up now, while the 890 built since 2010 are mostly still on the roof they were built with. At that age it pays to know whether the last roof was torn off or laid over the one before it, because a second layer hides the deck.

70% of homes in Swansea are single-family detached houses (4,302) and 5% attached ones such as townhouses (296). 385 homes (6%) sit in two- to nine-unit buildings and 614 (10%) in buildings of ten units or more, whose roofs are normally an owner's or a board's call rather than a resident's. The count also takes in 578 mobile homes, which are a different kind of roof job. Owners live in 73% of the 5,777 occupied homes. Read together, those figures point toward first replacements on 2000s builder-grade shingles and hail checks on newer roofs that look fine from the driveway.

BuiltHomesShare
Before 19403135%
1940s1603%
1950s5399%
1960s5048%
1970s4898%
1980s71912%
1990s1,18319%
2000s1,37822%
2010s88014%
2020 or later100%

Census ACS 2020–2024, tables B25034, B25035, B25024 and B25003: 6,175 homes, 5,777 occupied. Survey estimates.

Hail reports near Swansea

Between 2016 and 2025 there were 13 reports of 1-inch-plus hail within 5 miles of Swansea’s center in the records of NOAA’s Storm Prediction Center, on 8 separate days. 2 of them were 1.75 inches or larger. The largest, 1.75 inches, came on March 14, 2025, about 5 miles northeast of the center. The most recent was 1.25 inches on April 2, 2025. These are reports, not a full record: they come from spotters and the public, so busier areas log more.

Latest reportsSizeFrom center
April 2, 20251.25 inches4 mi NW
March 30, 20251 inch3.2 mi SW
March 14, 20251 inch4.7 mi E
March 14, 20251 inch5 mi NE
March 14, 20251 inch4.4 mi E

Hail damage rarely shows from the ground; a storm inspection photographs each slope so you know either way.

Worker on a ladder stripping worn asphalt shingles to expose the wooden roof deck

Do you need a permit here?

The village publishes a 'Permit By Fax Application for Plumbing, Electrical, and Reroofing,' so reroofing is a named permit type with a faster fax-in option.

Which code Swansea enforces

Swansea enforces the 2006 IRC. Village Code Section 150.023 revises 'the International Residential Code, 2006' by addition, insertion or change, under Ordinance 1887, passed August 17, 2020.

Permits and inspections in Swansea

The published number is 618-234-0044. The building official on record is Dan Thomas, Building & Zoning Director (618-722-2207; dthomas@swanseail.org). The department page is here.

Worth knowing in SwanseaSwansea has a named reroofing permit that can be applied for by fax. Its residential code is the 2006 IRC, one of the oldest editions in the St. Louis area. Since January 1, 2025, Illinois has required codes for new home construction to be at least as strict as the IRC, which may override the 2006 code for new homes while repairs stay under local rules. Building & Zoning is at 1444 Boul Avenue; its phone extension is 107. Permits go through CitizenServe at citizenserve.com/swansea. Other staff include Eric Heinzl, Code Enforcement Inspector, and Kelly Vogelsberg, Code Enforcement Officer.
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What goes into a new roof: all eight layers, explained

The design figures behind the spec

Swansea shares the metro's figures: 115 mph design wind, 20 psf ground snow. The code guide explains both.

Two-story house with light blue synthetic underlayment covering the roof during replacement
Close-up texture of brown asphalt roof shingles with a granular surface
Aerial view of a ranch house with a dark gray standing-seam metal roof
Lightning bolt and a dark shelf cloud sweeping over flat open plains at dusk

Nearby

Swansea borders Fairview Heights, Belleville, O'Fallon and Shiloh. Our pages for them:

How Swansea compares with its neighbors

CityRe-roof permitCodeMedian built
SwanseaYes2006 IRC1993
Fairview HeightsNot publishedNot published1972
BellevilleNot publishedNot published1962
O'FallonNot publishedNot published1997

All 4 St. Clair County cities side by side →

Common questions about roofing in Swansea

Do I need a permit to replace a roof in Swansea?

The village publishes a 'Permit By Fax Application for Plumbing, Electrical, and Reroofing,' so reroofing is a named permit type with a faster fax-in option.

Which building code does Swansea enforce?

Swansea enforces the 2006 IRC. Village Code Section 150.023 revises 'the International Residential Code, 2006' by addition, insertion or change, under Ordinance 1887, passed August 17, 2020.

How old are the houses in Swansea?

The Census Bureau's 2020–2024 estimates put the median year built at 1993: 5% of Swansea's 6,175 homes predate 1940 and 37% were built in 2000 or later. At the usual 25-year roof life, 63% have needed at least one new roof already.

Has Swansea had large hail recently?

Yes. The most recent report of hail 1 inch or larger within 5 miles of Swansea's center was 1.25 inches on April 2, 2025, one of 13 such reports from 2016 through 2025.

Who is the building official in Swansea?

The building official on record is Dan Thomas, Building & Zoning Director. The department's own number is on this page, beside its name.

Have you worked in Swansea before?

Not yet: no completed roof in Swansea is in our job records, so this page shows no job count.

Researched 2026-09-09; housing, Census ACS 2020–2024; hail, NOAA SPC. Sources: www.swanseail.org · codelibrary.amlegal.com · www.swanseail.org · www.swanseail.org · en.wikipedia.org · www.city-data.com · data.census.gov · www.spc.noaa.gov. Rules and staff change; check with the jurisdiction.

Yellow brick two-story house with a steep brown architectural shingle roof and blue sky
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