Cornerstone Exterior CleaningWindow cleaner in Santa Ana, CA

Cornerstone Exterior Cleaning is ranked #25 of 299 window cleaners in Santa Ana by CR Score, with 60 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.

Cornerstone Exterior Cleaning is open Monday to Saturday. Its listed hours are Monday to Saturday, open 24 hours. On Saturdays it is open Open 24 hours and closed on Sundays. Hours come from the business listing; holiday hours may differ.

Serves Santa Ana and 12 towns within 15 miles: Irvine, Laguna Woods, Laguna Hills, Lake Forest, Aliso Viejo, Laguna Beach, Mission Viejo, Foothill Ranch, Tustin, Costa Mesa, North Tustin and Newport Beach. The list is based on the business's location and the usual service radius for window cleaning. Confirm your address is covered when you call.

Cornerstone Exterior Cleaning has a rating of 4.8 from 25 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 Cornerstone Exterior Cleaning on (619) 433-5973. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.