Grabenhorst GradingLandscaper in O'Fallon, MO

Grabenhorst Grading is ranked #29 of 66 excavating contractors in O'Fallon by CR Score, with 50 out of 100 as of November 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

Grabenhorst Grading is open Monday to Friday. Its listed hours are Monday to Friday, 6 AM – 6 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

Serves O'Fallon and 6 towns within 15 miles: Lake Saint Louis, Dardenne Prairie, Wentzville, Saint Peters, Weldon Spring and Saint Charles. The list is based on the business's location and the usual service radius for landscaping. Confirm your address is covered when you call.

Grabenhorst Grading has a rating of 4.9 from 8 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

Call Grabenhorst Grading on (636) 281-3317. The business is at 1400 Hwy P, O'Fallon, MO 63366. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.