On 29/07/2015 13:42, Judith wrote:
My garage door has been red for ages but all the neighbours' are white.
It is starting to show its age, and needs repainting; perhaps now is the
time to change the colour and blend in.

What paint should I use to cover the red - are there any special
tricks I should be aware of? It is an up-and-over type.

Wood or metal? Galvanised or plastic coated? Makes a difference.