There are two reasons why water spills occur which are: the water coming to the drain is too strong, and it overflows the gutter, or there is a blockage somewhere in the drainage system. … It is best to call the roofing contractor to take a good look at your box gutter.

Why do box gutters leak?

There are two reasons why water spills occur which are: the water coming to the drain is too strong, and it overflows the gutter, or there is a blockage somewhere in the drainage system. … It is best to call the roofing contractor to take a good look at your box gutter.

Should box gutters have standing water in them?

Modern conservatory gutters, which are usually a high capacity ogee style, are fitted level and so will always hold water. … Excess water held in the gutter can strain the gutter brackets and lead to them snapping, especially during colder months and if too few brackets have been fitted.