C. Merz Excavating & GradingExcavating contractor in Petaluma, CA

C. Merz Excavating & Grading is ranked #3 of 45 excavating contractors in Petaluma by CR Score, with 58 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.

C. Merz Excavating & Grading is open 7 days a week. Its listed hours are Monday to Friday, 7 AM – 7 PM; Saturday, 8 AM – 7 PM; Sunday, 12 PM – 7 PM. On Saturdays it is open 8 AM to 7 PM, and on Sundays 12 PM to 7 PM. Hours come from the business listing; holiday hours may differ.

Serves Petaluma and 10 towns within 25 miles: Sebastopol, Windsor, Healdsburg, Larkfield-Wikiup, Roseland, Santa Rosa, Rohnert Park, Cotati, Calistoga and Cloverdale. The list is based on the business's location and the usual service radius for excavating and grading. Confirm your address is covered when you call.

C. Merz Excavating & Grading has a rating of 5.0 from 10 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 C. Merz Excavating & Grading on (707) 888-9704. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.