Service area · Contra Costa County
Commercial Janitorial & Cleaning Services in Walnut Creek
Walnut Creek's office parks and retail centers set a high bar for appearance. American Building Service (ABS) keeps them clean inside and out, with crews and supervisors who know Contra Costa County.
Buildings we clean in Walnut Creek:
We work across Downtown Walnut Creek, the Ygnacio Valley corridor, and Shadelands. We clean:
- Professional office buildings and business parks
- Retail centers and shopping plazas
- Medical and dental offices
- Financial and professional services offices
- Mixed-use and residential community common areas

Services available in Walnut Creek:
- Nightly janitorial: offices, restrooms, break rooms, and floors
- Day porter: walkways, restrooms, storefronts, and trash areas at retail centers, plus lobbies and common areas at offices
- Power washing: sidewalks, courtyards, parking areas, and trash enclosures
- Window cleaning: storefronts and office glass
- Landscaping and exterior maintenance: grounds upkeep for retail and office properties
Why Walnut Creek property managers choose ABS:
- Retail and office experience. Day porter and exterior programs for single sites or multi-property portfolios.
- Since 1987. Family-owned and focused on the Bay Area.
- Certified. MBE and WBE certified, Avetta compliant, and CSLB licensed (General B).
- Bilingual supervision. English- and Spanish-speaking supervisors on every account.
Frequently asked questions:
- Do you provide day porters for shopping centers?
- Yes. Our porters keep walkways, restrooms, storefronts, and trash enclosures clean during business hours.
- Can one contract cover several properties?
- Yes. We service portfolios of retail and office properties under one property manager.
- What nearby cities do you serve?
- Lafayette, Pleasant Hill, Concord, Danville, San Ramon, and the rest of Contra Costa County.
Get a quote for your Walnut Creek property:
We'll walk your property, confirm the scope, and send a written proposal. Call (510) 418-8752 or request a walkthrough below.
