Check the correct St. Louis roofing permit authority, material-change and sheathing questions, historic review, and the records to request from your contractor.
Establish who governs the property
“St. Louis roof permit” is not a complete permit question. Start with the property’s actual jurisdiction, then describe the material and extent of work. Do not transfer a City of St. Louis answer to a county municipality because both addresses say St. Louis. Ask the contractor to identify the department that will decide whether your scope requires a permit.
Keep the answer in the project file with the address and written scope. You are trying to avoid a preventable mismatch: a proposal priced as a simple covering replacement that later becomes a different project because the material, structure, or approval requirements were never discussed.
Read the City’s criteria carefully
The City’s residential permit criteria identify roof work that changes the covering material or replaces more than 25% of the sheathing among the listed permit triggers. The same page notes different rules for historic districts and flood zones. Use the actual scope to request a determination; a brief description such as “new roof” can mean different things.
City emergency or recovery guidance may address a particular situation. If two official pages appear to give different answers for your work, send the address and scope to the Building Division. Do not resolve the discrepancy by choosing whichever sentence makes the project easier to schedule.
For County properties, confirm the local process
The County’s published building code addresses roof covering permits and coordination with municipalities that contract for County enforcement. That does not establish that every property has the same application route. Ask the municipality and County which approvals your address and proposed work require.
Request the contractor’s answer before comparing an “all included” quote with one that excludes permits. You need to know who applies, which review is included, and whether the proposal anticipates a separate local approval. Keep any response tied to the current scope instead of relying on a permit determination from a different job.
Plan for the concealed-deck question
Some decking conditions are not visible before removal. Ask for the contractor’s process if the discovered repair quantity differs from the estimate: photographs, measurement, pricing, homeowner approval, and any required discussion with the building department. The contract should define who can authorize additional work and how the roof will be protected while decisions are made.
A practical comparison: one bid includes a limited repair allowance and another says all deck work is extra. Ask both contractors to price the same assumption and explain how additional quantities are documented. An unspecified allowance should not become a claim that the entire deck is sound or that a permit will never be needed.
Check historic review before choosing a substitute
The Cultural Resources Office reviews exterior-work permit applications for City Landmarks and structures in City Historic Districts. If that applies, ask about review before ordering a substitute for an existing slate, tile, or other visible roof material.
Include photographs, the existing material, and the proposed replacement in the discussion. A product that looks similar in a small sample is not evidence of approval. Keep the approval decision separate from the contractor’s opinion about installation suitability and from any insurance claim decision about payment.
Agree on the completion records
Before work begins, request the permit number if applicable, inspection responsibilities, and the records that will be supplied at completion. If the work is determined exempt, retain that determination with its scope assumptions. Do not mistake an application receipt for an issued permit or a paid invoice for a completed municipal review.
Request a St. Louis roof inspection and ask for the permit and deck-repair assumptions to be visible in the proposal. Our cost estimator helps compare matching scopes. This guide uses official information checked September 7, 2026; the relevant authority determines requirements for the actual project.
Published by
Lapeyre Roofing Editorial Team
Homeowner guides
Our editorial team publishes homeowner guides with sources linked in the article. For a recommendation about your roof, request an inspection of the property.
