There are different cowls for different chimneys. Most are designed to keep pests out and enhance the draw of the chimney. We will always fit a stainless steel cowl with a strap so that it will last and not blow off in high winds or rot with the salty air.
A vent cap should be fitted to disused chimneys. These allow the chimneys to breathe without getting damp and prevent birds accessing and building nests.
Please call for an estimate for supply and fitting.
Anti Perch spikes can also be fitted to Pots and stacks to stop birds from landing.