Reliable. Responsive. Built on Experience.
As a second-generation, family-owned business with roots in the janitorial industry dating back to 1978, we bring decades of hands-on experience to every account.
Customer service is central to how we operate. You can expect clear communication, dependable crews, and fast response times whenever needs arise.
Trust your facility to oneSource Janitorial.
Servicing accounts throughout the Pacific Northwest — nightly, weekly, or monthly, tailored to you.
Comprehensive nightly, weekly, and monthly janitorial programs plus on-site dayporter services to keep your facility clean around the clock.
Core ServiceSpot cleaning and full truck-mount carpet cleaning to remove deep-set dirt, stains, and allergens — leaving carpets fresh and long-lasting.
Truck-Mount AvailableScrubbing, stripping, waxing, and buffing for all hard floor types. We restore and protect your floors so they always look their best.
All Floor TypesPost-construction cleaning to remove dust, debris, and residue after renovation or new builds — getting your space business-ready fast.
Fast TurnaroundInterior and exterior window washing plus thorough blind cleaning to let the light in and keep your space looking sharp inside and out.
Interior & ExteriorPressure washing, paper products supply, and snow plowing round out our offering — truly one source for all your facility service needs.
Full-ServiceWe built our business on accountability, consistency, and communication.
Dan Williams has been in the janitorial industry since 1978 — bringing decades of hands-on expertise to every account.
Your needs are our top priority. We respond fast to any request, concern, or change — so your facility is never left waiting.
We're a second-generation family business. When you work with oneSource, you deal directly with ownership — no franchises, no call centers, no runaround.
Nightly, weekly, or monthly — we build a service program around your facility's schedule and operational needs.
No matter what your needs may be, oneSource Janitorial can fulfill them. Trust us to keep your office clean.
Contact us today for a free, no-obligation quote. We'll build a custom cleaning plan that fits your facility and schedule.