Licensed contractors in Castro Valley, California

Contractors with an active California license and a business address in Castro Valley (Alameda County). Each listing shows what the state has on file.

• Wonderlin Roofing Systems INC
  Roofing · #642517
  Active Insurance current
• Wong Plumbing
  Plumbing · #1158954
  Active No insurance on file
• Woodberry Development Company
  General Contractors · #600258
  Active No insurance on file
• Wu Construction
  General Contractors · #863143
  Active No insurance on file
• Xotek INC
  General Contractors · #700664
  Active Insurance current
• Yee Cheung
  General Contractors · #855650
  Active No insurance on file
• Your Carpenter Friend
  Carpentry & Cabinets · #1145911
  Active Insurance expiring soon
• Zachary Boelsterli
  General Contractors · #1077803
  Active No insurance on file
• Zeek's Discount Glass INC
  Windows & Glass · #1086133
  Active Insurance current
• Zifu Property Construction
  General Contractors · #1126513
  Active No insurance on file
• Zolie Builders INC
  General Contractors · #1107148
  Active No insurance on file

Last checked against state records on Oct 4, 2026. How we get this data.