Standard cleaning maintains your facility. Deep cleaning restores it. Most commercial facilities need a thorough deep clean four times a year — and the timing and focus of each session should change with the season. Here is how to plan each one.

Spring: Reset After Winter

Winter brings tracked-in salt, sand, and moisture. By March, carpets have absorbed months of residue, entrance mats are saturated, and HVAC filters have been working overtime.

Spring deep clean priorities:

  • Carpet hot-water extraction to remove winter grime
  • Floor stripping and re-waxing (especially high-traffic corridors)
  • HVAC vent cleaning and filter replacement
  • Window cleaning (inside and exterior-facing surfaces)
  • Upholstery and fabric chair cleaning

Summer: Prepare for Reduced Occupancy

Many offices see lower occupancy in summer as staff takes vacations. This makes summer the ideal window for disruptive deep cleaning work that is difficult to schedule during full occupancy.

Summer deep clean priorities:

  • Post-event cleaning if the space is used for summer gatherings
  • Deep pantry and kitchen clean, including refrigerators and appliances
  • Restroom tile re-grouting or deep grout cleaning
  • Carpet spot treatment and furniture repositioning for wear pattern redistribution

Fall: Pre-Winter Preparation

Before cold weather arrives and windows stay closed, address the areas that will accumulate through winter.

Fall deep clean priorities:

  • Entryway and mat system deep clean before salt season begins
  • HVAC system inspection and duct cleaning
  • Upholstery deep clean before cold-weather increased occupancy
  • Storage room and archive area organization and cleaning
  • Exterior-facing window cleaning before winter weather makes it impractical

Winter: Post-Holiday Reset

The return from the holiday break is the ideal moment for a thorough reset. Offices that have been quiet for two weeks often need more cleaning than expected — dust settles during low-activity periods, and kitchens may have accumulated residue from holiday events.

Winter deep clean priorities:

  • Full kitchen and breakroom deep clean
  • Conference room furniture deep clean
  • Carpet touch-up and spot treatment
  • Light fixture cleaning (dust accumulates on surfaces during holiday closure)
  • Hard-surface floor buffing and polish refresh

Scheduling Around Your Calendar

The best time to schedule each seasonal deep clean is during a period of naturally lower occupancy: the week before school resumes, a long weekend, a known travel period, or immediately following a major company event. Most professional cleaning providers can accommodate weekend or holiday timing at standard rates with advance notice.