Common area maintenance charges — CAM — are how property managers pass the cost of shared building upkeep to tenants on a pro-rata basis. Cleaning is typically one of the largest controllable line items in the CAM reconciliation, and it is also one of the most contested when tenants review their annual CAM statements.

What Cleaning Costs Go Into CAM

In a multi-tenant commercial building, the cleaning costs that legitimately flow through CAM include: lobby and common corridor cleaning, shared restroom maintenance, elevator cab cleaning, stairwell service, and exterior entrance cleaning up to the tenant’s suite door. Cleaning inside individual tenant suites is typically excluded from CAM and billed directly to the tenant or absorbed into base rent.

Day porter service for common areas is a CAM-eligible cost. Day porter service responding to a specific tenant’s requests — cleaning up after a catering event in a tenant conference room, for example — is not.

What Goes Wrong in Scottsdale CAM Cleaning Budgets

The most common CAM cleaning dispute in Arizona commercial leases is over frequency escalation. A property manager signs a cleaning contract at 3×/week for a newly occupied building. Occupancy grows. The manager upgrades to 5×/week without documenting the change in the CAM budget. At year-end reconciliation, tenants see a cleaning cost 40% above the prior year and request backup documentation that does not exist.

The second most common issue: monsoon-season frequency adjustments that are not budgeted. Greater Phoenix and Scottsdale’s monsoon season (June–September) creates dust events that require additional cleaning passes. Buildings on exposed lots — the Loop 101 corridor, properties east of Scottsdale Airpark — see disproportionate cleaning cost spikes in August. Budget these before the season, not after the invoices arrive.

How to Build the Budget Line

A defensible CAM cleaning budget for a Scottsdale multi-tenant building should itemise:

  • Base cleaning contract cost (annual, at contracted frequency)
  • Supply cost if supply procurement is in the cleaning contract
  • Monsoon-season frequency adjustment estimate (5–10% of base contract, depending on site exposure)
  • Day porter service if applicable (separate line from base cleaning)
  • Contingency for scope changes at tenant turnover (typically 3–5% of base)

Obtaining a fixed-price contract rather than a time-and-materials cleaning agreement is the most effective budget control available. Time-and-materials contracts shift cost variability to the property — every monsoon dust event becomes an unpredictable invoice. Fixed-price contracts with scope-defined frequency adjustments let you budget the monsoon adjustment as a known cost, not an open exposure.

Tenant Challenges to CAM Cleaning Costs

Tenants with audit rights — typically any tenant above 5,000 sq ft in a Class A or B building — will review cleaning invoices during a CAM audit. The documentation that holds up to audit: the cleaning contract with itemised scope, signed crew completion logs or electronically-captured visit records, and any written scope-change agreements. The documentation that does not hold up: verbal agreements, one-paragraph invoices without line-item detail, and cleaning company statements that say “services rendered” without frequency or task breakdown.

For a written quote and scope for your Scottsdale building: (866) 958-8773 | Request a quote

About: Scottsdale Building Cleaning Co has served property managers, building engineers, and REIT asset managers across the Scottsdale area for 22 years. For questions or a written quote: (866) 958-8773 | request a quote.