DPC Installation in Blyth

Many Blyth terraces still have the old outside toilet or coal house built against the back wall, or a lean-to where one used to be. Those small buildings often share the house wall and sit at yard level, so their floor and walls bridge the damp course along that stretch. When the back kitchen wall is damp, we check what stands against it outside. Sometimes the answer is injecting from inside and cutting a gap; sometimes removing a crumbling coal house does more good than anything done to the house wall. Back yards in Blyth are often concreted right up to the wall at a level above the damp course as well, so even where the coal house has gone, the yard itself can be the bridge. Cutting a channel along the wall and filling it with gravel is a common part of the fix.

Chimney breasts in terraces that burned coal for generations hold salts from the fires, and those salts draw moisture from the air and stain the plaster in a way that looks like rising damp. We test before we inject, because a breast with salt damage needs the plaster replaced with a salt-resistant system rather than a damp course. Where kitchen units sit on a treated wall, they come off, and they can go back once the plaster has had time to dry. We also look at gutters and downpipes on the back elevation, because a blocked hopper or a downpipe discharging at the foot of the wall can soak the base of the brickwork and look exactly like rising damp. Fixing that first saves you paying for an injection the wall does not need.