Roof leaks: causes, signs and fixes
A leaking roof rarely gets better on its own. Here's what causes leaks, how to spot one early, and how we fix them.
Get a free quoteCommon causes of roof leaks
- Cracked, slipped or missing tiles and slates
- Perished lead flashing around chimneys, roof penetrations and abutments
- Split or blocked valleys where two roof slopes meet
- Worn felt or EPDM on flat roof sections
- Leaking skylights and Velux windows
- Loose or missing ridge and hip tiles
- Condensation building up in poorly ventilated roof voids
Signs to watch for
- Damp patches or staining on ceilings and walls
- A musty smell in the loft
- Daylight showing through roof boards
- Missing or displaced tiles visible from the ground
- Water pooling on a flat roof after rain
How we fix roof leaks
We start with a proper inspection to find the actual source — not just the room where the damp patch appears, since water can travel along timbers before it shows. Once we know the cause we explain the options and the cost before starting any work, with no call-out charge either way.
Frequently asked questions
What are the most common causes of a roof leak?
Damaged or missing tiles, perished flashing around chimneys and roof penetrations, blocked or split valleys, and worn-out felt on flat roofs are the most common causes we see.
How do I know if my roof is leaking?
Watch for damp patches on ceilings, musty smells in the loft, daylight visible through the roof boards, or water staining around chimneys and skylights.
Can a small leak wait, or should I call straight away?
Even a small leak can let in enough water to damage timber and insulation over time, so it's worth getting it looked at quickly rather than waiting.
Do you charge for coming out to look at a leak?
No — there is no call-out charge, and quotes are always free.
Will you help with an insurance claim?
Yes, for storm or wind damage we can provide photos and a written assessment to support your claim.
Got a roof leak?
Call York Roof Leaks for a free, no call-out-charge quote — we cover York and villages within around 15 miles.
Call 0330 223 7665 Get a free quote