Commercial Cleaning · NJ & Greater Philadelphia

The cleaning partner you never have to chase.

Healthcare facilities and managed properties trust Cornerstone for spotless spaces, documented results, and crews that show up — every visit, on spec.

5-countyNJ + PA service area
Every visitDocumented & inspected
24-hourRe-clean guarantee
Licensed, bonded & insured
Background-checked, trained crews
Dedicated account manager
Documented quality control
Built for your facility

Many kinds of facilities. One standard of care.

Healthcare facilities and managed properties are our specialty — but every building we service is held to the same documented standard.

For Healthcare Facilities

Clinics, medical offices & urgent care

Where cleanliness is a clinical requirement, not a courtesy — and an inspector could walk in any day.

  • Infection-control aware — proper disinfectant dwell times, color-coded equipment, and high-touch protocols for exam and treatment rooms.
  • Inspection-ready, always — documented checklists per visit so you can prove the room was cleaned, not just say it was.
  • Discreet, after-hours crews who understand patient privacy and never disrupt a waiting room.
For Property Managers

Multi-tenant & managed commercial buildings

Where every tenant is a renewal decision and the lobby is the first thing a prospect sees.

  • One accountable contact for the whole portfolio — no chasing crews building to building.
  • Common areas tenants notice — lobbies, elevators, restrooms, and glass kept to a standard that protects renewals.
  • Consistent across sites — the same spec and reporting whether you manage one building or a dozen.
Also serving across the region
Office SpacesCorporate suites and professional offices.
Churches & WorshipSanctuaries and community spaces, service-ready.
Industrial & WarehousesPlants and facilities kept safe and orderly.
Schools & TrainingClassrooms, charters, and training centers.
The Cornerstone difference

Most cleaners disappear. We leave a paper trail.

The reason facilities fire their cleaner is rarely a single bad night — it's never knowing whether the job got done. We built our service around removing that doubt.

01

Assess & build the spec

We walk your facility, learn your standards and schedule, and turn them into a written scope — so "clean" means the same thing to both of us.

02

Deliver & document

Trained, background-checked crews work to that spec, with a completed checklist filed every visit. Nothing is left to memory.

03

Inspect & adapt

Your account manager reviews quality on a set cadence and adjusts as your needs change — before you ever have to ask.

Scope of services

Everything your building needs, on one contract.

Bundle recurring janitorial with the periodic work most facilities forget to schedule — under one accountable partner.

Commercial janitorial

Recurring nightly or scheduled cleaning kept to a written, repeatable spec.

Window cleaning

Interior and exterior glass that keeps lobbies and storefronts sharp.

Post-construction cleanup

Dust, debris, and finish detailing to make a built-out space move-in ready.

Pressure washing

Entrances, walkways, and exterior surfaces restored to a clean first impression.

Floor care

Strip, wax, buff, and carpet care that protects your finishes from costly wear.

Not sure what your building needs?

Book a free site walk. We'll assess the space and put together a scope and transparent quote — no obligation.

Book a site walk
The Cornerstone guarantee

If it's not right, we make it right — within 24 hours.

A guarantee should be specific enough to hold us to. Here's exactly what ours means.

Flag any missed item and we re-clean it at no charge, within one business day.
Your account manager answers directly — not a ticket queue.
No long-term lock-in. We keep your business by earning it every visit.
Built to be relied on

Capability you can verify. Accountability you can hold.

Documented scopes, trained crews, and a guarantee in writing — so the trust is earned in the work, not promised in a pitch.

Built on standards

Defined scopes, scheduled inspections, and trained crews who hold to the same spec — every building, every visit.

Nothing to lose by trying

A free site walk, a transparent quote, and no long-term lock-in. Hold us to the spec and keep us only if we earn it.

Backed and documented

Licensed, bonded, and insured, with a completed checklist filed every visit. Proof from day one — not promises about the past.

Cover of the free guide: 7 Red Flags Your Janitorial Company Is Cutting Corners
Free guide

Is your current cleaner cutting corners?

7 Red Flags Your Janitorial Company Is Cutting Corners — a quick read that shows you exactly what to watch for, so you can spot a slipping vendor before it costs you an inspection, a tenant, or your reputation.

Get the free guide
Start here

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
1We walk your spaceA 20-minute visit at a time that works for you.
2You get a written scopeA clear plan and a transparent quote — within 24 hours.
3You decideNo pressure, no lock-in. Start when you're ready.