The short answer
How often should gutters be cleaned? At least once a year, ideally in late autumn once the leaves have fallen. Buildings near trees, or with flat roofs or box gutters, usually need a second clear in spring. Leaving gutters longer risks overflowing water, damp inside the building and damage to the fabric.
Gutters are easy to forget, because nobody looks at them until something goes wrong. On a commercial building, that usually means water pouring down the front of the building, a damp patch in an office, or a leak onto stock or machinery. A simple, regular clear prevents all of that.
What decides how often gutters should be cleaned
- Trees. The biggest factor. A building next to mature trees can need clearing twice a year or more; one on an open industrial estate may only need a yearly check.
- Roof type. Moss from tiled and sheet roofs washes into the gutters. Box gutters and valley gutters on industrial units hold debris, and when they overflow the water often ends up inside the building.
- Birds. Pigeons and other birds nest in and behind gutters, and their nests block the outlets quickly.
- Weather. A dry summer builds up leaves and debris, and the first heavy autumn rain is when blocked gutters overflow.
- Past problems. If a gutter has overflowed before, clear it more often and check the downpipes too.
What happens if gutters aren’t cleared
- Overflowing water runs down the walls instead of the downpipes, staining the building and soaking brickwork and mortar.
- Damp and mould can get into the walls and show up inside, which is unpleasant for staff and expensive to put right.
- Leaks inside are common with box gutters, where an overflow can drip straight onto stock, machinery or ceilings.
- Rotten fascias and soffits, and peeling paint, where water sits against them.
- Standing water on flat roofs, which adds weight and shortens the life of the roof covering.
- Slip hazards where water drips onto entrances and walkways, and freezes in winter.
How commercial gutters are cleared safely
Nobody should be clearing gutters from a ladder with a bucket and trowel. It means working at height with one hand free while carrying heavy, wet debris, and that’s how falls happen.
We clear gutters from the ground with the SkyVac gutter vacuum system. A powerful vacuum on a long pole lifts out leaves, moss, nests and silt from gutters up to about 45ft high. A camera on the pole shows the gutter before and after, so you can see the job is done. For anything higher, we use a cherry picker with an IPAF-trained operator.
A simple plan for your building
- Book a clear every autumn, once the leaves are down.
- Add a spring clear if you’re near trees, or if a gutter has overflowed before.
- Ask for the camera photos, so you have a record for your maintenance log.
- Book it alongside your window cleaning, so one contractor and one visit covers both.
We clean gutters on any commercial building, whether or not we already clean your windows. Commercial gutter cleaning.
Questions
When is the best time of year to clean gutters?
Late autumn, once most of the leaves have fallen. If your building is surrounded by trees, add a clear in late spring as well.
Can gutters be cleaned from the ground?
Yes. We use the SkyVac gutter vacuum system, which clears gutters up to about 45ft high from the ground, with a camera to check the result.
How can I tell if a gutter is blocked?
Look for water spilling over the edge in heavy rain, plants growing out of the gutter, stains down the walls, or damp patches inside near the roofline.
