RATING
—Researched, not yet rated. Ratings are added in a later St. Louis edition.
See the St. Louis list ↗PRIMARY TRADE
General remodeler3 of 21 St. Louis siding installers with a record present themselves the same way on their own homepage (observed 2026-10-13).
STATE LICENSE
NoneMissouri has no state siding license, so there is no state license record to check. St. Louis County licensing was not checked for this edition; ask the city or county where the house is whether the job needs a permit.
Missouri Division of Professional Registration: boards ↗ · City of St. Louis Building Division boards of examiners ↗ · St. Louis County government ↗ · observed 2026-10-13
“Whether you need to replace builder grade siding , older masonite siding, or update the look of your home, Mosby has a team of siding specialists who are educated and certified in the installation of various types of siding, including vinyl siding, fiber cement siding, natural and engineered wood siding, cedar siding, trim, and flashing.”
Mosby Building Arts lists siding work (installation, replacement) and names vinyl, fiber cement, wood, engineered wood (LP), cedar and Harbor Siding.
Where this company fits
Service area: St. Louis-area communities including Kirkwood, Chesterfield, Ballwin, Clayton, Ladue, Webster Groves, Wildwood and Frontenac
Materials: vinyl, fiber cement, wood, engineered wood (LP), cedar, Harbor Siding.
Siding work: installation, replacement.
Question for your estimate: Ask for the workmanship-warranty term in writing; whether the job needs a city permit and who pulls it; how old siding, house wrap and flashing are handled; a completed siding project near you.
Evidence limit: Researched 2026-10-13 for the first St. Louis edition; not rated. Company statements are not verified performance. Missouri has no state siding license; St. Louis County licensing was not checked.
- Listed location
- Kirkwood, MO
- Business address (company website)
- 115 W. Argonne Ave., Kirkwood, MO
- Best fit
- Design-build remodeler with siding specialists and a ten-year workmanship term
Against the St. Louis field
- Primary trade
- General remodeler3 of 21 St. Louis siding installers with a record present themselves the same way on their own homepage (observed 2026-10-13).
- Materials named
- 6The median St. Louis record names 2 siding materials.
- Workmanship warranty
- Term published6 of 21 St. Louis records publish a specific workmanship or labor warranty term in the pages reviewed.
- James Hardie
- Not named12 of 21 name James Hardie on their own site. The manufacturer directory was not checked for this edition.
What the published information covers
Company statementThis checklist describes information found in the sources reviewed. “Not located” does not mean the contractor lacks the service or warranty.
Documented in reviewed sources
Siding page names vinyl, fiber cement, natural and engineered wood and cedar siding, with Harbor Siding and LP Building Products.
Documented in reviewed sources
Siding page covers replacing builder-grade or masonite siding and new installation.
Not located in reviewed sources
Specific installation step not located in reviewed sources.
Not located in reviewed sources
Named completed local siding project not located in reviewed sources.
Documented in reviewed sources
Siding page lists “a 10-year workmanship warranty.”
Record history
Every dated observation behind this record. Later editions add lines here when a rating, directory status or published detail is recorded.
Read the underlying sources
- Mosby Building Arts homepage ↗
Observed 2026-10-13. Company-advertised information. St. Louis design-build remodeling firm offering a 10-year workmanship warranty on completed remodeling projects; its first studio is at 115 W. Argonne Ave. in Kirkwood. - Siding Companies St. Louis ↗
Observed 2026-10-13. Company-advertised information. Siding replacement page naming vinyl, fiber cement, natural and engineered wood and cedar siding, Harbor Siding and LP products, and a 10-year workmanship warranty.
Published warranties and manufacturer mentions are company statements; directory listings and Google ratings are dated observations, not a guarantee of the outcome of your project. See the method and its limits.
Questions about Mosby Building Arts
Where is Mosby Building Arts located?
Mosby Building Arts lists 115 W. Argonne Ave., Kirkwood, MO on its own website (observed October 13, 2026). Its stated service area is St. Louis-area communities including Kirkwood, Chesterfield, Ballwin, Clayton, Ladue, Webster Groves, Wildwood and Frontenac.
Is Mosby Building Arts rated by Siding Contractor Benchmark?
Not yet. Mosby Building Arts was researched on October 13, 2026 for the first St. Louis edition. St. Louis records are researched, not yet rated; ratings are added in a later edition.
Does Mosby Building Arts install James Hardie siding?
James Hardie was not named on the pages we reviewed on October 13, 2026, and the manufacturer directory was not checked for this edition.
Does Mosby Building Arts need a state siding license in Missouri?
No. Missouri has no state siding license; the Division of Professional Registration has an Electrical Contractors board but no siding or general contractor board (observed October 13, 2026). St. Louis County licensing was not checked for this edition. Whether a re-siding job needs a permit depends on the city or county where the house is; ask there.
Does Mosby Building Arts publish a workmanship warranty?
Yes. Siding page lists “a 10-year workmanship warranty.”
CITE THIS RECORD
Siding Contractor Benchmark, “Mosby Building Arts — St. Louis siding contractor record,” observed 2026-10-13, https://sidingcontractorbenchmark.com/st-louis/contractors/mosby-building-arts/
Spotted an error? Correct this record.