Signals of blocked gutters

Damp and mould

Water running down the outside of your house can cause mold to grow inside and out.  Water can penetrate through the wall and cause damage to paint and wallpaper.  This can go unnoticed if hidden behind furniture.

Leaky roofs and saggy ceilings

Clogged gutters can result in water that stands for hours, or longer, blocking the flow of water from the roof.  This can leak into ceiling cavities and cause ceilings to sag and eventually collapse, ruining internal decoration and your home’s contents.

Splash back damage

Water that spills or leaks from a blocked gutter onto the ground can cause water to splash back and damage your property. The affected area can suffer from penetrating damp, peeling paintwork, wood rot and unsightly cosmetic damage.

Sagging driveways

Just as large roots can lift the concrete blocks of your driveway into the air, clogged gutters can result in pooling water that breaks down the concrete from the top. This might cause sagging driveways or even large cracks to appear.

Brickwork and pointing damage

An overflowing gutter can result in water pouring down the wall, causing damage to brickwork and pointing, penetrating damp and damage to wall ties.  Moss growing on the well walls adds to the problem by retaining water and not letting the walls dry out.

Rotting wood

Clogged gutters can also rot wood fascia.  When the water build up and stands stagnant for even just a few hours, the wood will start to break down and decompose, causing serious problems.

Cracks in the foundation

Blocked gutters can force water downwards directly onto the foundation wall, which can lead to major cracking, mould growth and rot along the surrounding fascia. Wet areas around the foots can cause the soil to swell and shrink, increasing the risk of termite attack and movement.

Ruined landscaping

Expensive landscaping can be destroyed in hours by clogged gutters as the water exits the gutters with sufficient force to dig holes, resulting in over-watered plants and unsightly dips in the topography of your yard.


Removing moisture and debris from your gutters is one of the most effective steps you can take to keep your home insect-free, along with twigs, leaves and other materials that pests love to use as both shelter and a food source.