It pays to examine all gutter brackets and clips to ensure no water will drip on to walls.

Attach the section to the house by reassembling the parts and pressing the section into the gutter brackets.

The manufacturer's catalogue will specify the fixing distance for the gutter brackets: normally these will be every 1m (or 3ft), with extra brackets at corners and where the outlets are fitted.

After removing the old gutter (and the molding beneath it, if the gutter is wooden), drive a nail or install a gutter bracket at the point you determine will be the high point of the run along that wall, which should also be the longest run in the system.