What keeps roof junctions sealed
Junction traced properly
We inspect the flashing, fixings and adjoining roof surface to find the leak route.
Repair or replacement decided fairly
The best option depends on material condition and the quality of the junction.
Water sent the right way
The finished detail must direct rain back over the roof covering, not behind it.
Tracing leaks at the roof's vulnerable junctions
Flashing seals some of the roof's most vulnerable junctions, including chimneys, wall abutments and roof penetrations. When it fails, rain can get in even if the slates, tiles or flat covering nearby still look respectable enough from the ground. In Swansea, we trace problems such as lifted edges, splits, open joints and staining below junctions by checking the flashing material, the way it is fixed and the roof covering beside it. That matters because the leak may be caused by the joint, the chase, the seal or the way the flashing meets the roof surface.
Repairing the detail so water runs the right way
Some flashing can be refitted or repaired locally if the surrounding detail is sound. In other cases, replacement is the better route because the material has failed or the junction was never directing water properly in the first place. The finished repair needs to integrate cleanly with the covering so water runs over the roof and away, not behind the detail and into the house. That is why flashing jobs are about the whole junction, not just the strip of material with the obvious split.
Frequently asked questions
Where does flashing usually fail on a roof?
Common trouble spots include chimneys, wall abutments and roof penetrations where different materials meet. Problems can show as lifted edges, open joints, splits or staining below the junction. Because these are change points on the roof, even small defects can let in persistent water.
Can flashing be repaired or does it need replacing?
Both are possible, depending on the condition of the material and how sound the surrounding junction is. Some flashing can be refitted or repaired locally. If the material has failed more broadly or the detail was poor to begin with, replacement is often the cleaner answer.
Why do flashing leaks worsen in driving rain?
Wind-driven rain can force water harder against weak junctions and open edges, exposing faults that may seem quieter in lighter weather. That is why customers often notice staining or leaks only during certain conditions, even though the underlying defect has been there for a while.