R12 Window Cleaning

R12 Window Cleaning is a family-owned company offering window cleaning for homes and businesses, along with gutter cleaning, gutter guard installation, pressure washing, solar panel cleaning, bird abatement and outdoor lighting service. Owner Tim Zickuhr runs the business, and many customers describe him and his crew as thorough, punctual and courteous. Reviewers often mention roof-level gutter work and window cleaning for two-story homes.

R12 is licensed and insured and offers free estimates by phone. Pricing is listed as competitive, with check and invoice billing available for commercial accounts. The company serves Contra Costa, Alameda and Santa Clara counties and is based on Crocket Drive in Brentwood, where the owner says he enjoys working. Gutter cleaning comes with a one-year guarantee.