Vendor Selection

What to Verify Before Hiring a Commercial Exterior Services Contractor

Part of the guide Vendor Selection, Compliance, and Procurement

The short answer

Verify seven things before the first visit: who does the work, insurance, the safety program, at-height qualification, experience on buildings like yours, coverage in every market you need, and whether they can get through your procurement onboarding.

The seven checks

VerifyAsk forRed flag
WorkforceAre crews W2 employees?Unnamed subcontractors
InsuranceCertificate naming the property, plus required endorsementsA slow or missing certificate
Safety programThe written program and a site-specific planCannot describe it in detail
At-height qualificationTechnician certification; do they ask for your anchor documentation?Never asks about anchors
Safety performanceEMR and TRIR, if your process uses themWill not share them
ExperienceReferences at your height and scaleNo comparable references
Coverage and onboardingOwn crews in each market; can they complete your platform onboarding?Vague answers

Why it matters

When an uninsured or undertrained crew gets hurt on your property, the exposure does not stay with them. The lowest bid often reflects corners cut on insurance, training or safety. See red flags in exterior services proposals.

Go deeper on each check

How S&K answers them

  • 100% W2 crews: trained, insured S&K employees, never subcontractors
  • Certificates of insurance on request, and documentation you can hand to ownership, insurers or auditors
  • Documented safety: classroom and hands-on training, site-specific safety plans, technicians certified before at-height work
  • Equipment inspected and serviced on a routine schedule
  • One contract, one invoice and one point of contact across a portfolio

Score every bidder with the vendor qualification scorecard, or read the full Vendor Selection, Compliance, and Procurement guide. To qualify S&K, ask for our certificates of insurance and safety documentation, or request a quote.

Frequently asked questions

What should I check before hiring a commercial cleaning or exterior contractor?

Workforce, insurance, safety program, at-height qualification, safety performance, references on similar buildings, and coverage in your markets.

Why does it matter if a contractor uses subcontractors?

Subcontracted crews bring uncertainty about training, coverage and who is liable if there is an incident.

Should the contractor ask about my roof anchors?

Yes. For rope descent work, OSHA requires the contractor to obtain the building owner's written anchor confirmation first.

Ready to scope your building?

Tell us about the property. We route every request to the local team that will walk the site.