Why the Same Crack Keeps Coming Back
Most people who call us about drywall have filled the same spot before, sometimes more than once. The filler was not the problem. A repair only lasts if whatever caused the damage has stopped, and if the new material is fixed to something that is not moving.
Working out what caused it
Cracks tell you something by their shape and position. Fine hairline cracks along a joint line usually mean a taping failure or seasonal movement. Diagonal cracks running from the corner of a door or window suggest structural movement. Staining with a soft or bulging surface means water, and water means finding the source before anything else happens.
Nail pops, where fixings push a small circle of filler out of the surface, generally mean timber that has dried and shrunk since it was fixed. That is straightforward to correct properly and almost impossible to correct by filling the pop alone.
Water damage and why it needs patience
Board that has been wet has lost strength even after it looks dry, and the paper facing will often have separated from the core. Repairing a wet ceiling before the leak is fixed and the structure has dried out simply hides the problem while it continues.
We find and stop the source, allow the area to dry properly, check the timber behind for rot, then cut out and replace the affected board. Painting over a dried stain without replacing failed board is a short-term measure and we will say so.
Making a patch that does not show
The visible edge of a bad repair is almost always the result of building filler up too thick and too narrow. A patch stands slightly proud, the light catches the ridge, and the eye finds it immediately even under paint.
A good repair is built up in thin coats and feathered a long way out, often two or three times wider than the damage itself. It takes more visits and more drying time, and it is the reason a properly repaired wall reads as a wall rather than as a patch.
Matching what is already there
Older walls are rarely flat and often textured. A perfectly flat modern patch in the middle of a slightly undulating old wall can look as wrong as a bad one, because it does not match its surroundings.
We match level and texture to the wall we are repairing rather than to an ideal, blending the repair into what exists. On textured or artexed surfaces we will tell you honestly when a full skim across the whole area will look better than any patch could.
How we price repair work
Small repairs are usually quoted from photographs and a short phone call, and often several can be done in one visit for less than the sum of separate call-outs. It is worth listing everything you want looked at rather than calling about one crack.
Where we suspect an underlying cause such as a leak or structural movement, we say so before starting and quote the investigation separately. We would rather lose a small repair job than take money for a fix we know will fail.