Frontenac roofs cost what the transitions cost, not what the square count suggests. The city is 2.88 square miles in central St. Louis County, ZIP 63131, with 3,612 residents at the 2020 census. Most lots are an acre. Most roofs are wide hips with dormers, chimneys, and sidewalls where a two-story section meets a one-story run. The shingle is the easy part. The leak is almost always a valley, a cricket, or a counterflashing joint.
Where a Frontenac roof actually fails
On a simple gable, the field wears out evenly. On a Frontenac house the field can still look fine while water is entering at an open valley, behind a wide chimney with no cricket, or at the sidewall flashing. We photograph those details and price them as line items. A low bid on a house like this is usually low because those lines are missing.
We install new metal flashing rather than reuse the old metal. That is the corner most often cut on complex roofs in this part of the county. Where a mortar joint needs counterflashing let into the brick, that is in the estimate with the reason attached. We do not smear caulk over failed metal and call it a repair.
Color, pitch, and the street view
A broad hip roof in Frontenac is visible across a long lawn. Color and profile matter. We bring full-size samples to the house and look at them against the brick and trim in daylight. We do not pick the color from a paper swatch in an office. Where slate, tile, or standing seam is already on part of the house, the junction gets flashed. We will say when a section should be left alone.
Neighbors with the same roof problems are on our Ladue, Des Peres, Town and Country, Clayton, Kirkwood, and Creve Coeur pages. Frontenac is not a separate trade. It is a more detailed version of the same work.
Storm claims on a complicated roof
Hail still bruises architectural shingles here. The difference is the adjuster walk. A quick lap around a Frontenac roof misses the dormer cheek, the chimney back, and the dead valley. We mark those, photograph them, and meet the adjuster up there. Call 314-429-6000 if water is active. We photograph damage before any tarp goes on.
Landscaping is part of the job on these lots. Materials get staged on plywood, beds get covered, and the property is magnet-swept. A Frontenac replacement is often two to four days, depending on pitch and the number of transitions. You get that schedule before we start.
What is in the Frontenac estimate
- Every valley, dormer, chimney, and sidewall photographed, measurements taken on the roof
- New metal flashing priced, not reused
- Crickets behind wide chimneys where water would otherwise sit
- Deck inspection, with sheathing replacement priced before tear-off
- Ventilation sized to the attic, not one ridge vent run out of habit
- Lifetime workmanship warranty, and manufacturer registration on qualifying Owens Corning, CertainTeed, and GAF systems
- City of Frontenac permit and inspection handled by us
A finished replacement near this part of the county is Carillon Court in Creve Coeur — GAF Timberline HDZ, Williamsburg Gray, 37 squares, gutters included. Closer in, Forsyth Boulevard (Owens Corning Supreme, Onyx Black) is the kind of smaller, detailed roof we also do.
Frequently asked questions
- Why do Frontenac roof bids vary so much?
- Because the flashing lines are either in the bid or they are not. We price valleys, crickets, counterflashing, and decking in writing so you can compare the same scope against another contractor.
- Can you match one section instead of replacing the whole roof?
- Often, and we show the match at the house before you commit. If that color is no longer made, we say so.
- Do you protect the driveway and the landscaping?
- Yes. Plywood under the material pile, beds covered, magnet sweep before we leave. These lots are not an afterthought.
- Is the inspection free in Frontenac?
- Free. Photographs of every slope and a written report, no obligation, whether you are filing a claim or planning a replacement.
Read the Frontenac roofing guide on our St. Louis Roofing site for the longer version of how these roofs fail.