How to Install Guttering

A practical checklist you can follow for most uPVC gutter systems. Always follow the specific manufacturer instructions for your system.

What you will need

  • Gutter lengths, unions, angles, stop ends, outlet
  • Brackets and appropriate fixings for your fascia material
  • Downpipe, offsets, bends, shoes, and clips
  • Tape measure, spirit level, drill, fine-tooth saw or cutter

Steps

  1. Plan the run and downpipe position. Decide where water needs to discharge and ensure you have a clear path to a drain.
  2. Set the fall. Mark a small fall from the high point towards the outlet so water flows reliably.
  3. Install the brackets. Use the spacing recommended by the manufacturer. Add extra support near fittings.
  4. Cut and fit the gutters. Cut square, remove burrs, and clip into place.
  5. Fit the outlet and downpipe. Clip and secure, then check alignment to avoid strain on joints.
  6. Test. Run water through the system to confirm flow and identify leaks before finishing.

Common mistakes to avoid

  • Too little fall which can cause standing water.
  • Insufficient bracket support near joints and outlets.
  • Overusing sealant on systems that rely on rubber seals.

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