A leaking roof might seem like a small problem, but left unchecked, it can cause serious damage to your home. Water finds its way into ceilings, walls, insulation, and even electrics—leading to costly repairs.
At South Hams Roofing Services, we help homeowners across Devon identify and fix leaks before they escalate. Here’s how you can spot the warning signs early.
Water Stains on Ceilings & Walls
One of the clearest signs of a roof leak is a brown or yellow stain spreading across your ceiling or running down interior walls. These patches often get darker after rainfall and may expand over time.
Don’t ignore even small marks—what looks like a tiny stain could mean water is spreading much further behind the plaster.
Damp or Musty Smells in the Loft
If your loft smells damp or musty, moisture could be seeping in through cracked tiles, faulty flashing, or poor ventilation. Check for:
Damp insulation
Discoloured timber
Water droplets on rafters or felt
A regular check of your loft, especially after heavy rain, can help you catch leaks early.
Dripping Water
It might sound obvious, but dripping water in the loft or upstairs rooms is a sure sign your roof has a problem. Even if it only happens during heavy rain, it’s a red flag that water is finding its way through your roof covering.
This kind of leak won’t fix itself—act quickly before it damages your electrics, ceilings, and flooring.
Moss, Algae, and Exterior Damage
Sometimes the signs of a roof leak are visible from outside. Look out for:
Missing, cracked, or slipped slates and tiles
Damaged lead flashing around chimneys or valleys
Blocked or overflowing gutters causing water to back up
Moss or algae growth that indicates trapped moisture
Even if you can’t see water inside yet, these external issues can lead to leaks over time.
Peeling Paint and Bubbling Plaster
If water is seeping into your walls, you may notice peeling wallpaper, blistering paint, or bubbling plaster. These are often mistaken for general damp, but the root cause is often a leaking roof.
Left untreated, the moisture can spread throughout your property, leading to mould growth and damage to your home’s structure.
What to Do if you Suspect a Leak
If you spot any of the above signs, don’t delay. Roof leaks don’t go away on their own—they only get worse.
Here’s what you should do:
Note down where and when the problem occurs (after rain, in certain rooms, etc.)
Avoid climbing on the roof yourself—it’s unsafe and may cause further damage.
Call a professional roofing contractor for an inspection.
At South Hams Roofing Services, we can carry out a thorough roof survey—including drone surveys for hard-to-reach areas—and provide a clear plan for repair.
We Fix Roof Leaks Across Devon
From small repairs to full replacements, our experienced team covers all aspects of roofing, including:
