Most roof problems don't arrive without warning. There are almost always signs — inside the property, outside, or both — that something is beginning to fail. The challenge is knowing what to look for before the damage becomes a water stain on your ceiling or a hefty repair bill. Below are the most common early indicators that your roof may need attention.
What to Look For Inside the Property
- ✓Damp patches or discolouration on ceilings, particularly in upstairs rooms or directly below the loft.
- ✓A musty or earthy smell in the loft — this often points to condensation or water ingress before visible staining appears.
- ✓Daylight visible through the roof when inspecting the loft space with the lights off.
- ✓Insulation that appears wet, compressed, or stained.
- ✓Timber rafters or purlins that look darker than normal — this is a sign of moisture absorption over time.
What to Look For Outside
- ✓Slipped, cracked, or missing tiles or slates — even one missing tile can let in significant water during heavy rain.
- ✓Ridge tiles that are rocking, lifting at the ends, or showing cracked mortar bedding.
- ✓Moss or lichen growth, especially in valleys and lower slopes — these trap moisture against the roof surface.
- ✓Blocked or sagging gutters causing water to back up against the fascia or run down the external wall.
- ✓Lead flashings at chimney stacks or abutment walls that are lifting, cracked, or have open joints.
- ✓Damaged or missing mortar around chimney stacks — this is a very common entry point for water on period properties.
How Often Should You Check?
A quick visual inspection twice a year — once in autumn before the wet season and once in spring — is a good habit for any homeowner. After significant storms, it is also worth checking the loft space and looking up at the roof from ground level. You don't need to get on the roof yourself; binoculars from the street will often reveal slipped tiles, missing ridge sections, or deteriorating flashings.
Water doesn't always enter the roof directly above where it appears inside the property. It can travel along rafters and battens before dripping, which is why a damp patch in one corner of a room might have its source on the opposite side of the roof. A proper survey by a roofer will trace the actual source rather than just treating the visible symptom.
When to Call a Roofer
If you can see slipped tiles, open joints in flashings, or have a damp patch that has appeared after rain, our roof repair service covers exactly this kind of work — it's worth getting a roofer to survey before the problem worsens. Small repairs are almost always significantly cheaper than the water damage that follows if they are left. We carry out free surveys across Brighton, Hove and the wider Sussex area and provide written quotations before any work begins.