Roofing, gutters, downspouts
(314) 220-2333Keys Roofing works Chesterfield and the rest of west St. Louis County. This site is the job written down before it starts: what comes off, what goes back on, who inspects it, and the things a Missouri roofer is not allowed to promise you.
A roof is the largest single surface anybody owns and it is the one nobody ever looks at. It gets sold in driveways, in a hurry, usually a week after a storm, and almost always by somebody holding a tablet with a number already on it. That is a terrible way to buy something that has to sit there through twenty Missouri springs. So this is the opposite arrangement. Every sheet in this set covers one part of the work, in plain language, with the parts that are inconvenient for a roofer left in.
Keys does three things and only three: roof replacement, roof repair, and gutters with downspouts. No siding, no windows, no commercial buildings. The shingles are Atlas and Malarkey. The phone is (314) 220-2333 and a person answers it.
Plenty of contractors in this metro will quote a roof and then, standing in your driveway, offer to do the gutters, the siding, the soffit, the deck and the fence. Sometimes that is a genuinely broad company. More often it is one crew that does whatever was said yes to. Keys is narrow on purpose, and the narrowness is the point: the same people are on roofs every working day of the year, which is the only way anybody gets good at the details that decide whether a roof leaks.
Full tear off to the decking, deck inspected and repaired, new edge metal, ice and water barrier at the eaves and valleys, synthetic underlayment, starter course, field, new flashing at every penetration, hip and ridge cap over a ridge vent where the ridge will carry one.
Flashing, pipe boots, step flashing at a sidewall, a slipped or blown course, an isolated soft spot in the deck. Repair is the right answer more often than a salesman will tell you, and sheet A03 sets out exactly when it stops being the right answer.
Seamless gutter, hangers, fall, downspouts and discharge. Sized to the roof that is actually feeding them rather than to whatever was on the house before. Sheet A09 covers sizing, guards and where the water is supposed to end up.
Not offered
Siding, windows, decks, fences, painting, commercial roofing, underground drainage, tree work and masonry are all outside what Keys does. If a job needs one of them, it needs somebody else, and saying so up front is cheaper for everybody than finding out on the day.
Chesterfield is not an old town in the way that the city neighbourhoods east of here are old. The bulk of what stands in it is late twentieth century subdivision building: two storey houses on generous lots, brick on the front elevation and lap siding around the back, and rooflines that are far more complicated than they look from the kerb. A house like that typically carries a main hip or gable with two or three secondary gables crossing it, a front porch roof, a garage bay roof, a dormer or two, and a bay window with its own little roof over it.
Every one of those junctions is a valley, a hip, a ridge, a sidewall or a headwall, and every one of them is a place where water is being asked to change direction. Field shingle almost never fails first. Details fail first. That is why the cost and the risk on a Chesterfield roof sit in the linear feet of transition rather than in the square footage of plain slope, and why two houses with the same measured area can be genuinely different jobs. Sheet A02 goes through the housing stock and what each roof shape does to the work.
This is the sequence on a normal single family tear off. It is written out because a homeowner who knows the order can tell, from the ground, whether steps are being skipped. Nearly every serious roofing complaint in this market comes down to one of these nine being done fast instead of done.
Honest note
No crew picks up every nail on the first pass. Roofing nails are small, they bounce, and grass swallows them. A good crew sweeps with a magnet, sweeps again, and tells you to call if you find one. A crew that promises a perfectly clean lawn has not done many roofs.
Chesterfield is one of the municipalities that contracts its building inspection function out to the St. Louis County Department of Public Works rather than running its own inspectors, and it layers its own Municipal Zoning Approval step in front of the county process. In practice that means a roofing job here can touch two desks rather than one, and it is the property owner, not the crew, who is left with the record of what was and was not done properly.
The county baseline that most roofs in this area fall under is straightforward. A like for like asphalt shingle replacement on a slope of 4:12 or steeper does not require a building permit. A shallower slope does. A change of roofing material does. Replacing more than a quarter of the decking does. Those are thresholds worth knowing before somebody tells you not to worry about it. Sheet A05 goes through the whole path, and says plainly which parts you should confirm yourself with the county building division rather than take from a roofing website, including this one.
The other thing worth knowing: Missouri has no state roofing licence. Bills to create one were filed as SB 1022 in 2016, SB 153 in 2019 and SB 326 in 2021, and every one of them failed. Any licensing that exists in this metro is municipal registration, city by city, and the requirement changes when you cross a line on a map.
The National Oceanic and Atmospheric Administration logged 125 hail events in St. Louis County between 2020 and 2025, with a largest reported stone of 2.5in and an average reported stone of 1.32in. Those are counts of reports, not of insured losses, and hail reporting density tracks population density: a stone that falls where people are gets logged, and a stone that falls over the Missouri River bottoms does not. It is a real record and it is a lopsided one, and any roofing company that quotes it without saying so is using it as a scare number. Sheet A11 lays the whole record out, sourced, with the caveats attached.
Keys does not represent you on a claim, does not negotiate with your insurer, and does not handle the paperwork for it, because RSMo 407.725 bars a roofing contractor in Missouri from any of that. The same section separately forbids a roofer from advertising that it will pay your deductible or rebate part of it. What a contractor may properly do is photograph and measure the roof, write a scope of work, and be on the roof with the adjuster as the contractor. If a company in your driveway offers you more than that, it is offering you something the statute does not allow it to offer.
Chesterfield contracts its building inspection function to the St. Louis County Department of Public Works, and it adds a Municipal Zoning Approval step of its own before a county permit is issued. The county baseline is that a like for like asphalt shingle replacement on a slope of 4:12 or steeper does not require a building permit, while a shallower slope does, a change of roofing material does, and replacing more than a quarter of the decking does. Confirm the current requirement with the county building division and with Chesterfield city hall before work starts, because it is the property owner who lives with the record.
No. Missouri has no state roofing licence. Bills to create one were filed as SB 1022 in 2016, SB 153 in 2019 and SB 326 in 2021, and all three failed. Anything that looks like licensing in this metro is municipal contractor registration, which means the requirement changes when you cross a city line. Ballwin and Kirkwood, for two, run their own.
Atlas and Malarkey. Those are the two lines Keys carries, and this site does not name any other manufacturer as something Keys installs, because it does not.
No, and no roofer in Missouri may offer to. RSMo 407.725 bars a roofing contractor from representing or negotiating on a property owner's insurance claim. What Keys does is document the roof with photographs and measurements, write a scope of work, and be on the roof with the adjuster as the contractor. The claim itself stays between you and your insurer.
Most single family roofs in west St. Louis County are a one day tear off and reinstall, and a large complicated roof with a lot of cut up planes, dormers and penetrations runs into a second day. Weather moves it. Nobody should be laying shingle into rain, and a crew that offers to is telling you something about how the rest of the job will go.
Ten more sheets, each one a part of the job. They are written to be useful whether or not you ever call Keys, which is the only reason a homeowner has to read a roofing company's website twice.