Cal-Delta PlumbingPlumber in Antioch, CA

Cal-Delta Plumbing is ranked #20 of 323 plumbers in Antioch by CR Score, with 60 out of 100 as of October 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.

Cal-Delta Plumbing is open 7 days a week. Its listed hours are Monday to Friday, 8 AM – 5 PM; Saturday and Sunday, open 24 hours. On Saturdays it is open Open 24 hours, and on Sundays Open 24 hours. Hours come from the business listing; holiday hours may differ.

Serves Antioch and 12 towns within 25 miles: Tiburon, Sausalito, Strawberry, Richmond, Chinatown, Tamalpais-Homestead Valley, El Cerrito, Corte Madera, Albany, Tamalpais Valley, Mill Valley and San Pablo. The list is based on the business's location and the usual service radius for plumbing. Confirm your address is covered when you call.

Cal-Delta Plumbing has a rating of 5.0 from 20 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 Cal-Delta Plumbing on (925) 234-6941. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.