Most commercial exterior cleaning issues are not urgent until they become expensive.
Across the sites we work on, there are a few recurring problems that tend to be overlooked. Left untreated, these issues affect safety, drainage and the long-term condition of the building.
Here are some of the most common things we come across on commercial properties.
1. Blocked Gutters and Poor Drainage
Gutters often fill with leaves, dirt and debris over time. On many sites, this goes unnoticed until water starts overflowing during heavy rain.
This can lead to:
– water ingress into buildings
– damage to cladding and fascia
– pooling around foundations
In practice:
Regular gutter clearing and checks help maintain proper drainage and prevent avoidable damage.
2. Roof Build-Up and Organic Growth
Roofs accumulate moss, algae and debris, especially on buildings that are not regularly maintained.
Over time this:
– traps moisture
– accelerates surface wear
– shortens the life of roofing materials
In practice:
Controlled roof cleaning removes build-up and helps maintain the condition of the roof without damaging the surface.
3. Slippery Carparks and Walkways
High-traffic areas collect oil, grease and grime. When wet, these surfaces become hazardous.
This is common in:
– loading zones
– warehouse access areas
– customer carparks
In practice:
Regular surface cleaning restores traction and reduces the risk of slips and incidents.
4. Build-Up on Building Exteriors
Cladding and exterior walls are exposed to dust, pollutants and environmental residue.
While it may not seem urgent, over time this:
– affects the condition of the surface
– makes buildings harder to maintain
– impacts overall site presentation
In practice:
Scheduled exterior cleaning keeps surfaces in good condition and avoids long-term deterioration.
5. Issues That Are Not Visible from the Ground
Some problems only become clear when viewed from above.
These include:
– blocked gutters at height
– early roof damage
– areas holding water or debris
In practice:
Drone inspections allow these areas to be assessed safely and quickly, without the need for access equipment.
A Practical Approach to Maintenance
Most of these issues are simple to manage when identified early.
The challenge is that they often go unnoticed until they start causing disruption or cost.
A structured approach to exterior maintenance helps avoid that.
Santos Enterprises works with commercial and industrial sites across the North Island, supporting property managers and operators with reliable, well-planned exterior cleaning.
