We built a cleaning company around one idea: accountability.
Cornerstone Building Services exists because the most common reason facilities fire their cleaner is not a single bad night — it is never knowing whether the job got done. That is exactly what we are built to fix.
Why Cornerstone
Most commercial cleaning is invisible by design. Crews come after hours, leave no record, and the only feedback loop is a complaint. That works until it doesn't — and by then a facilities director or property manager has spent months chasing a vendor instead of running their building.
We started Cornerstone to run cleaning like the operation it actually is: a written scope, trained and vetted crews, a documented checklist every visit, and one account manager who answers directly. The result is simple. You stop wondering, and you stop chasing.
Today we focus on the two kinds of buildings where that accountability matters most — healthcare facilities, where cleanliness is a clinical requirement, and managed commercial properties, where every tenant is a renewal decision.
You'll never wonder if it got done
Every visit closes with a completed checklist. Every account has a named manager. Every miss is re-cleaned free within one business day.
NJ & Greater Philadelphia
Headquartered in Burlington, NJ, serving a five-county corridor across New Jersey and the Greater Philadelphia area.
Our values aren't decoration.
Each one maps to something you can actually see in the service.
Accountability
A documented checklist every visit. If we say it was done, you can see that it was.
Consistency
The same crews, the same spec, the same standard — visit after visit, building after building.
Trust
Licensed, bonded, insured, and background-checked — the basics a serious facility should never have to ask about.
I started Cornerstone because I watched too many businesses settle for cleaning they couldn't count on — work with no standard, no record, and no one accountable when it slipped. After more than a decade leading commercial operations and managing major accounts for Fortune 100 brands, I built Cornerstone on the discipline that delivered results there: clear standards, documented work, and a team that owns the outcome. My commitment is simple — we earn your trust in the work, on every visit, and we put it in writing.
See the difference before you sign anything.
Book a free site walk and we'll show you exactly what your facility needs — and what we'd do about it.
Book a free site walk