Big City WashPressure washing company in Diamond Bar, CA

Big City Wash is ranked #27 of 144 pressure washing companies in Diamond Bar by CR Score, with 57 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.

Big City Wash is open 7 days a week. Its listed hours are Monday to Saturday, 6 AM – 8 PM; Sunday, 8 AM – 5 PM. On Saturdays it is open 6 AM to 8 PM, and on Sundays 8 AM to 5 PM. Hours come from the business listing; holiday hours may differ.

Serves Diamond Bar and 2 towns within 15 miles: Big Bear City and Big Bear Lake. The list is based on the business's location and the usual service radius for pressure washing. Confirm your address is covered when you call.

Big City Wash has a rating of 5.0 from 3 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.