Service Areas A Cozy Chimney Sweep is proud to provide chimney sweep, air duct cleaning and dryer vent cleaning in the following areas: East Bay Alameda Albany Antioch Berkeley Brentwood Castro Valley Clayton Concord Danville Dublin El Cerrito Emeryville Fremont Hayward Hercules Lafayette Livermore Martinez Moraga Newark Oakland Oakley Orinda Piedmont Pinole Pittsburg Pleasant Hill Pleasanton Richmond San Leandro San Pablo San Ramon Union City Walnut Creek