If you’ve ever been left cleaning up after your cleaning crew or been left wondering why your invoice is messed up or [insert problem here]…this guide is for you.

As someone who’s managed millions of square feet of commercial real estate, I’ve learned the hard way that hiring a janitorial vendor isn’t about mops and buckets, it’s about risk, reliability, and reputation. Your janitorial partner is an extension of your team. Choose poorly, and you’ll be cleaning up more than coffee stains.

Over the years, I developed a 5-Point Vetting System that cuts through the sales fluff and exposes the real players. This guide is that system.

Vetting Point 1: Proof of Performance (Not Just a Polished Proposal)

  • Ask for case studies, before-and-after photos, and proof of work with similar clients.
  • Red flag: If all they show you is a tri-fold brochure and a logo sheet, walk away.
  • Make sure to ask for an review their general liability and worker’s compensation insurance certificate.

Vetting Point 2: Staffing Strategy & Supervision

  • Who’s actually doing the work? Are they W-2 employees or subcontractors?
  • What’s their process for supervision, accountability, and backup coverage?
  • Pro tip: Ask to see their training manual. A good company has a good one.

Vetting Point 3: Customized Scope, Not Cookie-Cutter Bids

  • Does their proposal address your building’s unique needs?
  • Or are they just quoting square footage and tossing in “standard services”?
  • The right partner asks about traffic patterns, material types, and tenant behaviors.

Vetting Point 4: Technology + Transparency

  • Do they use apps for inspections, reporting, or time tracking?
  • Modern cleaning is data-driven. If they’re still using clipboards and voicemails, it’s a liability.
  • When something goes wrong (and it will because human beings are involved!), how do they handle it? What’s their process?

Vetting Point 5: Values + Cultural Fit

  • Do they act like a vendor or a strategic partner?
  • Are they the type of people you’d be proud to bring into your leadership meeting?
  • If they’re not aligned with your company’s culture, safety standards, and values, nothing else matters.

Final Word

This system won’t just help you pick a better cleaning company. It will make you look like a rockstar when everyone else wonders how your buildings regularly look good and run smoothly.