Family owned & operated, Alert Door Service. has been proudly serving San Francisco & the Peninsula since 1980. Replacing torsion springs is just one of our many specialties. Call us or visit our showroom for a free estimate on your new garage door.


Contact Details

  Website
  City San Mateo , CA
  Zip Code 94401
  Address 925 North Amphlett Boulevard
  Phone Number (650) 342-7521