Vendor Selection

Single Vendor vs. Multiple Vendors Across a Building Portfolio

Part of the guide Vendor Selection, Compliance, and Procurement

The short answer

A single vendor gives one contract, one standard and one risk review. Multiple vendors give competitive tension and specialist depth, at the cost of more management and more gaps. Most portfolios do best with one primary vendor and specialists where needed.

Side by side

Single vendorMultiple vendors
Contracts and invoicesOneOne per vendor
StandardsThe same everywhereVary by vendor and market
Insurance and safety reviewOncePer vendor, at every renewal
PricingRecurring program pricing across buildingsCompetitive tension
AccountabilityOne point of contactSplit between vendors
RiskDependence on one providerCoordination gaps

When a single vendor works

  • It has its own crews in every market you need
  • It covers the services you need, including at height
  • It prices each building separately
  • It can scale as you add buildings

When multiple vendors make sense

  • Markets outside a vendor's footprint
  • Specialized work a primary vendor is not set up for
  • Owners who want price competition at renewal

The middle path

One primary vendor for recurring work across the portfolio, with line-item pricing per building, and specialists where the primary is not set up for the work. See when bundling services saves money and national account structures.

How S&K fits

S&K coordinates multi-site portfolios under one contract and one point of contact, with the same standards in every location and local W2 crews. See multi-site and franchise programs.

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

Is one vendor better than several for a property portfolio?

Often, for management and consistency, if the vendor has its own crews in every market and prices each building separately.

What are the risks of a single vendor?

Dependence on one provider and coverage gaps in markets it does not serve. Check its footprint before consolidating.

Can I mix a primary vendor with specialists?

Yes. It is the most common structure for larger portfolios.

Comparing your options?

Talk it through with a local S&K team, or take the free scorecard with you.