Most commercial buildings should have their facade soft washed every 12–24 months, with more frequent cleaning for windows, flatwork, and parking decks. See the full schedule below. The cheapest building to clean is one that never got dirty enough for tenants to complain. Here’s the maintenance cadence we recommend to property managers, and the math behind it.
Recommended frequency by surface
- Building facades (soft wash): every 12–24 months. Shaded, north-facing, or tree-adjacent buildings trend to 12; sunny exposures stretch to 24.
- Windows (exterior): 2–4× per year for Class A office and hospitality; 1–2× for industrial and flex.
- Concrete flatwork, entries, drive-thrus: quarterly to semi-annual. Gum, grease, and foot traffic build fast at ground level.
- Parking decks: annual deep clean, semi-annual for entry levels.
- Roofs: soft wash every 2–4 years, or at first visible streaking, since algae shortens shingle and membrane life.
- Dumpster pads and loading docks: quarterly. No one regrets this one.
Humid Southeast climates sit at the aggressive end of every range; algae season here is eleven months long.
Why a cycle beats a crisis
1. Grime compounds. Organic growth feeds on itself: a light film in year one is a colony by year two and a stain that needs restoration pricing by year four. Regular cleaning keeps every visit in the light-wash tier.
2. Surfaces last longer. Algae holds moisture against the substrate, roots into coatings and sealants, and accelerates UV damage. Manufacturers of EIFS, roofing, and architectural coatings all publish maintenance-cleaning requirements. Some warranties quietly depend on them.
3. Budgets like predictability. A scheduled program turns an unpredictable capital surprise into a flat line item, and multi-property or multi-year schedules earn better pricing than one-off mobilizations.
4. Leasing never sees a dirty building. Tours don’t schedule themselves around your cleaning calendar. Curb appeal is a 365-day-a-year job that gets judged in the first eight seconds of a site visit.
The drone advantage on maintenance cycles
Recurring programs used to carry a recurring tax: every visit re-rented the lift, re-rigged the stage, re-closed the sidewalk. A flight crew shows up, stages in two parking spaces, and repeats last year’s mission: same flight paths, same documentation, less setup every time. That’s why our maintenance clients see per-visit costs drop after the first cleaning, not rise.
| Drone maintenance visit | Boom lift / scaffold visit | |
|---|---|---|
| Setup each visit | Same flight paths, same documentation, minimal re-setup | Re-rent the lift, re-rig the stage, re-close the sidewalk, every time |
| Cost over time | Tends to drop after the first cleaning | Recurring rental cost on every visit |
| Workers at height | Zero | Every visit |
| Sidewalk/entrance access | Stays open | Closed during setup and work |
Put your property on a schedule
Tell us the property type and address and we’ll propose a cadence with per-visit pricing: one document you can drop into next year’s budget.
Questions this answers
How often should a commercial building facade be soft washed?
Every 12–24 months. Shaded, north-facing, or tree-adjacent buildings trend toward 12 months; sunny exposures can stretch to 24.
How often should commercial windows be cleaned?
2–4 times per year for Class A office and hospitality properties; 1–2 times per year for industrial and flex space.
How often should parking decks be cleaned?
An annual deep clean, with semi-annual cleaning for entry levels that see the heaviest tire and foot traffic.