Missouri Roofing Rules: What Homeowners Should Know
Missouri leaves much of the checking to homeowners. This guide walks Oakville, MO owners through the state rules on insurance-paid roofs, your right to cancel after a denial, who may speak for you on a claim, and how permits work around south St. Louis County. Each point names the law or office behind it.
Prefer to talk? Call now(314) 555-0191In Brief
The short version, with details further down.
Who Can Legally Roof in MO
No state agency licenses or registers roofing contractors in Missouri. Lawmakers have filed bills to change that several times. The most recent, HB 1348 in 2025, proposed statewide registration of roofing contractors, got a committee hearing, and did not become law. If a company claims to hold a Missouri state roofing license, ask what it means, since no such license exists.
A few cities fill part of the gap. In Arnold, MO, no contractor may do permitted work without an annual license from the city. Crestwood, MO asks contractors for a business license of its own. Everywhere else, these checks do the work a license would:
Why Deductible Deals Are Illegal
Under subsection 2 of RSMo 407.725, a roofer can't advertise or promise to cover or rebate any slice of your deductible as a way to land the job. The statute reads that promise broadly: an allowance, a discount off the price, or a gift, credit, bonus or even a "referral fee" paid to you or anyone connected to the property counts too.
When a roofer quietly absorbs a deductible, the money usually comes from somewhere else: a padded insurance estimate or a thinner job than the one described. Breaking any part of RSMo 407.725 is an unfair practice under the Missouri Merchandising Practices Act. It is also why this site never offers homeowners a reward, rebate or credit of any kind.
If the Insurer Says No
Many storm roofs are signed before the insurer has ruled on the claim. Missouri protects you if that ruling goes against you. When the contract is to be paid by insurance and a written notice from your insurer denies part or all of the claim, you may cancel up to midnight on the fifth business day after that notice arrives.
The roofer has to tell you about this right before you sign. The contract must include a notice of it in bold type of at least 10 points, along with a detachable "Notice of Cancellation" form you can fill in and send. If an insurance-paid contract shows up without both, ask why before you sign.
After you cancel, the roofer has 10 days to return your payments, deposits and any note you signed. The only exception is emergency work, such as tarping to stop further damage, that you agreed in writing was needed.
Subsection 6 keeps roofers out of the negotiation: they can't represent you on a claim, bargain with your insurer for you, or advertise either service. Expect a roofer to record and price the damage, then leave the settlement to you and the insurance company. A public adjuster licensed under RSMo 325.015 is the outside party who may represent you. The Department of Commerce and Insurance (DCI) consumer line is (800) 726-7390.
A separate federal rule covers sales made at your door. The FTC Cooling-Off Rule gives you three business days to cancel many sales over $25 made at your home.
Storm-Resistant Roof Programs
Missouri has no state grant for a new roof, and no law makes insurers discount a policy for impact-resistant shingles. Carriers differ on older roofs, and some cover them at actual cash value instead of full replacement cost. DCI's "Raising the Roof" tool compares how insurers cover roofs, which helps before you shop for a policy or a roof.
This Old House recommends Class 4 impact-resistant shingles for Missouri homes. No town in this area requires them. Treat Class 4 as an optional upgrade, and ask your own carrier whether it would change your premium.
City Permits and Local Rules
With no city government of its own, Oakville, MO gets building permits from St. Louis County Public Works. The same goes for Mehlville, Lemay, Concord, MO, Affton and Sappington. Section 105.1.2 of the County's building code (Ordinance 27,654) names two re-roof cases that need a permit: a roof pitched below 4:12, and any job that changes the roofing type, shingles to metal for example. Your roofer should confirm the job with the County and pull any permit it needs.
Green Park, Sunset Hills, Crestwood, MO and Fenton, MO contract with the County, which issues their building permits. Sunset Hills, Crestwood, MO and Fenton, MO run a city zoning review first, and Crestwood, MO also requires a contractor's business license. A quick call before work starts can save a delay.
Arnold, MO is in Jefferson County and has its own Building & Code Compliance Division (636-282-2378). Every contractor there needs a yearly City of Arnold license. Arnold's 2025 building code update draws the line at 25 shingles: swap out more than that and the work is classed as a replacement. If any part of the roof needs replacing, the whole roof gets replaced, except where a parapet wall or similar permanent break splits it into sections. Plan on a city permit.
Rules FAQ
Do I need a permit to replace shingles with shingles in Oakville, MO?
That depends on the roof. The County's code lists two cases that need a permit: a low-slope roof under 4:12 and any change in roofing type. Codes get updated, and details like decking work can matter, so have your roofer confirm with St. Louis County before the tear-off and pull any permit the job requires.
A roofer knocked on my door after a storm. What should I do?
Take a card and skip signing anything that day. Run through the checks above, get at least one other written estimate, and read the contract for the bold cancellation notice if insurance is involved. Remember the federal three-day cooling-off right for many sales made at home, and Missouri's five-business-day right after a written claim denial.
Can a roofer lower the price to cover my deductible?
No. Missouri treats a discount or allowance offered that way as a deductible rebate, which RSMo 407.725 bans. The same goes for gift cards, credits or cash to you or anyone tied to the property. A roofer can bid competitively on the work itself, but it can't absorb money you owe under your policy.
Is this site a roofer or an insurance helper?
Neither. Roof Replacement Oakville MO connects homeowners with independent local roofers, and those roofers pay us for each referral. We don't do roofing work, give legal advice or touch insurance claims. No money changes hands between you and us in either direction.
Sources
Official pages behind this guide, read October 1–2, 2026. This page is a plain-language summary, not legal advice.
Talk Through the Rules
Rules make more sense with your own roof in front of you. Request a free inspection, and one independent roofer who works in Oakville, MO will be put in touch with you. Bring the paperwork questions from this page to that visit along with the written estimate.