Window and siding replacement in Swansea
What the code and the permit desk actually require here — and what the houses in Swansea tend to be hiding behind the siding.
- People
- 14,445
- Homes
- 6,444
- Size
- 6.47 square miles
- From downtown
- About 12 miles east
- ZIP codes
- 62226
- Founded or incorporated
- 1886
Swansea (originally "New Swansea") incorporated on December 20, 1886 specifically so residents could avoid annexation by Belleville.
Swansea
Median house/condo built is 1991; despite incorporating in 1886, Swansea's housing stock is a later 20th-century Metro East bedroom-suburb build-out rather than a preserved 19th-century core.
What that vintage turns up
First-generation vinyl replacements went in across this whole period and they are now hitting both of the ages that matter at once: the frames are inside the twenty-to-forty-year band and the sealed glass units are well past the eight-to-twenty-year band. That combination produces the most common call we get on houses this age — fogged glass in a frame that is still perfectly sound. The honest first answer there is replacing the glass unit, not the window.
Hardboard and wood-composite lap siding from this era is the one with the paperwork. Masonite's hardboard covered product installed between 1980 and 1998 and reached roughly four million homeowners; Louisiana-Pacific's Inner-Seal siding had its own national settlement in the mid-1990s. Both claim programmes closed years ago, so the relevance now is diagnostic rather than financial: swelling, delamination and mushrooming along the bottom edges of the boards on a house of this age is a known product history, not necessarily the owner having neglected it.
The one to watch on a house of this age
Synthetic stucco applied before about 1997 is the high-risk cohort. Roughly ninety-five per cent of American applications were the face-sealed kind, which has no way to drain what gets past it, and the failures traced back overwhelmingly to flashing that was left out. Drainable systems are a different animal and are not the problem.
Lead paint. No, for anything built after 1978 — but confirm the build year before assuming it. 55.3% of the homes in St. Clair County were built before 1980, and on anything pre-1978 the EPA renovation rule applies to both of these trades. Window replacement is never exempt from it, at any size — a single window triggers it. A whole-house re-side clears the twenty square foot exterior threshold on the first wall. What the rule actually requires of a contractor.
Next door
Swansea shares a boundary with Fairview Heights, Belleville, O'Fallon and Shiloh. Where we have a page for a neighbour it is linked; where we do not, the rules there are still different from the rules here.
The rules in Swansea
Siding replacement No permit
Swansea Village Code Sec. 150.025(D): 'No permit shall be required for the following minor alterations to existing structures: (1) Construction of a carport; (2) Erection of a utility shed, if less than 200 square feet in size; (3) Erection of a fence not to exceed 6 feet 6 inches in height, not using material that exceeds six feet in length; (4) Decks that are not more than 30 inches (762 mm) above grade at any point and do not serve the exit door required by International Residential Code Section R311.4; (5) Replacement of windows; (6) Replacement of siding; (7) Replacement of shingles; and (8) Replacement of roof decking.' (Prior Code Sec. 15-206; Ord. 1465, passed 8-21-2006; Ord. 1830, passed 7-2-2018.) Re-siding an existing house is therefore squarely listed among work exempt from permit.
Window replacement, same opening No permit Enlarging or cutting an opening Permit required
Sec. 150.025(D)(5) exempts 'Replacement of windows' outright, with no size, count or value qualifier.
Illinois sets this, not Swansea — and we are not going to print a number we have not read
This is set in Springfield, not here. The Illinois Energy Conservation Code is adopted statewide by the Capital Development Board, and under the Energy Efficient Building Act no unit of local government — home rule or not — may regulate residential energy standards either more or less strictly than the state does. The Board adopted the 2024 edition, in force since 30 November 2025. It reaches alteration, renovation and repair work for which the municipality or county requires a building permit, limited to the part of the house being modified, and there is no Illinois exemption for replacement windows as such.
The unamended 2024 code figure for this climate zone is U-0.28. But Illinois publishes its own amendments to that code, it has amended that very table before, and we have not been able to open the current amendment document. So we are not going to state U-0.28 as the number enforced here. Buy to the ENERGY STAR figure below and the question does not arise; if you need the exact legal minimum, the Capital Development Board’s energy code office is on 217-685-4079.
For comparison, ENERGY STAR asks for U-0.25 or lower with an SHGC of 0.40 or lower everywhere in this metro, which is stricter than every code edition in force here. And the code only bites when the sash and the glazing are replaced together — replace the glass alone in an existing sash, or add a storm window over the top, and it does not apply.
Contractor registration Not published
Swansea Chapter 150 has no general contractor registration section. It does contain a 'Registration of owners' section (Sec. 150.008 - property owners, not contractors), trade-specific 'Applications, licenses and permits' sections for electrical (Sec. 150.044) and mechanical/fuel gas (Sec. 150.065), plumbing permits (Sec. 150.085), a plumbing 'Requirement of bond' section, and a 'Conformity to state license statute required' section under the plumbing regulations. Nothing reaching a siding or window contractor was found. The section texts for the electrical and mechanical licence provisions were not individually opened, so this is a qualified answer.
What the permit costs
No fee applies to the work in question, because no permit is required. Swansea's Table of Fees (Sec. 150.004) covers building, electrical, plumbing and mechanical permit fees, fire inspection fees, civil engineering review costs, sewer tap-in fees, occupant fees and demolition charges - it contains NO line for siding, windows, roofing or residential remodel, consistent with the Sec. 150.025(D) exemption.
Local quirks
Swansea is the only jurisdiction in this metro that expressly exempts replacement of windows, siding, shingles and roof decking from any building permit - no permit, no fee, no inspection for a straight re-side or same-opening window job. The exemption dates to Ord. 1465 (2006) and was carried forward by Ord. 1830 (7-2-2018). Swansea also runs the oldest residential code in this metro (2006 IRC, Sec. 150.023 as revised by Ord. 1887, 8-17-2020), tied with Waterloo. The Residential page hedges generally - 'Remodeling existing residences is generally allowed but may need a building permit' - which reads as contradicting the categorical Sec. 150.025(D) exemption; the codified ordinance is the authority and the web page is the looser text.
Who to call
- Building dept
- 618-234-0044
- Official
- Dan Thomas, Building & Zoning Director (618-722-2207 / 618-234-0044 ext. 107; dthomas@swanseail.org)
- Permits
- Department page
How Swansea compares with the rest of St. Clair County
Same county, same climate, same houses. Not the same rules.
| Place | Permit to re-side | Permit for a window | Window must meet |
|---|---|---|---|
| Swansea | No | No | — |
| Belleville | Yes | Yes | — |
| Fairview Heights | Yes | Yes | — |
| O'Fallon | Not published | Not published | — |
Work we have done in Swansea
We have no finished work in Swansea to show you yet. This fills in as jobs land, and not before.
Where these facts came from
Everything on this page about Swansea was read off a published source. Where a question has no published answer we have said so rather than filling the gap.
Sources: swanseail.org · swanseail.org · swanseail.org · codelibrary.amlegal.com · codelibrary.amlegal.com · codelibrary.amlegal.com · codelibrary.amlegal.com · cdb.illinois.gov · cdb.illinois.gov · cdb.illinois.gov · regulations.justia.com · regulations.justia.com · law.justia.com · law.cornell.edu · energysense.uillinois.edu
Looking at a job in Swansea?
We measure egress and safety glazing on the visit, not after the order goes in.
Tell us about the house
We answer the phone. If we miss you, we call back.