Clarkson Valley is a city of about 2.7 square miles in Chesterfield Township, St. Louis County. It incorporated in 1950. The 2020 census counted 2,609 people and 911 housing units. ZIP code 63005. Most people never type the city name into a search, because the mailbox often says Chesterfield or Ballwin. This page is for the houses that are actually inside the city limits.
The ZIP is not the city
63005 is also a Chesterfield ZIP. City Hall publishes its meeting address as 15933 Clayton Road, Ballwin, MO 63011. A Clayton Road house can be Clarkson Valley, Ballwin, or Chesterfield depending on the lot. We confirm the municipality before we file the permit, because each city permits its own roofs. If the house is in Chesterfield, that is the page. If it is in Ballwin, use that one. This page is only the City of Clarkson Valley.
The subdivisions the city itself lists — Forest Club, Crown Manor, Highgrove, Herworth, Jennycliffe, Fairlake, Chippenham, Fox Chapel, Valley Road, and the short streets off them — are the housing stock this page is about. Monarch Fire and Metro West split coverage by street. That is how small and how precise the boundary is.
What fails on these roofs
The city was still a village of 157 people in 1970. By 1990 it was 2,508. Most of the houses went up in that boom: wide hips, long valleys, and white oaks over the roof. The open field of the shingle is rarely the first failure. Valleys pack with acorns and leaves, water sits, and the underlayment wears through at the bend. South and west slopes lose granules where the canopy opens. A low bid on a house like this is usually low because the valley and flashing lines are missing.
These are not the steep two-story gables of a Ballwin subdivision, and they are not the cut-up dormer roofs of Frontenac. They are large-lot hips with tree cover. We photograph every valley and every sidewall before we price the job. If one valley can be repaired and the rest of the roof has life left, the report says repair.
Hail on a city of 900 houses
A hail line that crosses Chesterfield into Wildwood does not skip Clarkson Valley. With about 900 houses, one storm can put a large share of the city into claims at once. Bruising in the shingle mat does not show from the driveway. We mark test squares, count hits, and photograph soft metals — gutters, vents, and downspouts — because those dents date the storm. We meet the adjuster on the roof. If the first scope misses code items, we write the supplement.
Call 314-429-6000 if water is coming in. A person answers, including at night. We photograph the opening before any tarp goes on. Once the roof is dried in, the claim photos are gone. There is no trip charge for an inspection here.
What is in the written estimate
- Free on-roof inspection, photographs of every slope, whether or not you hire us
- Valleys, sidewalls, and chimney flashing priced as line items, not folded into a square price
- New metal flashing, not the old metal reused
- Deck inspection, with sheathing replacement priced per sheet before tear-off
- City of Clarkson Valley permit. The city adopted the 2024 International Residential Code, with local amendments, on July 7, 2026. We pull the permit the job requires and meet the inspection
- Lifetime workmanship warranty from John Beal Roofing, separate from the manufacturer warranty
- Owens Corning Platinum Preferred, CertainTeed SELECT ShingleMaster, and GAF Master Elite credentials, so qualifying systems can be registered
Landscaping is part of the job on these lots. Materials get staged on plywood, beds get covered, and the property is magnet-swept before we leave.
Nearby work, named as nearby
We have not published a completed-job page with a Clarkson Valley street address. The closest jobs we can show are on the same routes: Clayton Road in Ballwin (Owens Corning Duration), Forest Crest Drive in Chesterfield (Owens Corning Duration, Pacific Wave, 31.33 squares), and Crestmont Circle in Wildwood (IKO Dynasty). Same crews. Same warranty. We will not label a Chesterfield job as a Clarkson Valley job.
Cities on this side of the county
Clarkson Valley sits between Chesterfield, Ballwin, Ellisville, and Wildwood. The corridor page is West County roofing. Headquarters is 12181 Prichard Farm Road, Maryland Heights. Family-owned since 1947. BBB Torch Award recognized. Best Value Guarantee — best value or we pay you $200.
Frequently asked questions
- Is my Chesterfield mailing address actually Clarkson Valley?
- It can be. Clarkson Valley uses ZIP 63005, the same ZIP Chesterfield uses, and City Hall's published street address is on Clayton Road in Ballwin. We confirm the municipality from the house, not the ZIP, before we file a permit.
- Do you charge a trip fee to Clarkson Valley?
- No. Clarkson Valley is inside our regular St. Louis service area, between Chesterfield, Ballwin, and Ellisville. The inspection and the written estimate are free.
- Can oak debris in one valley be a repair instead of a replacement?
- Often. One packed valley is a repair. Bruising across the slopes, or a shingle at the end of its life on the south and west faces, is a replacement. The written report says which, with photographs.
- Who permits a roof in Clarkson Valley?
- The City of Clarkson Valley. The city adopted the 2024 International Residential Code, with local amendments, on July 7, 2026. We pull the roofing permit the city requires and meet the inspection.