
If you live in the UK, you’ll know how common damp is - and not just outside. Indoors, it often shows up as peeling paint, musty smells, and those telltale yellow or brown stains on ceilings and walls.
These signs of water damage might not seem serious at first, but left untreated, they can lead to mould, crumbling plaster and permanent damage.
Luckily, you can tackle it with Thompson’s
If water’s already making its way inside, you need something that works right away. Thompson’s Emergency Leak Fix is a fast-acting, thick formula that can be easily applied onto most surfaces.
Simply clear the area of any dust, dirt or algae, then apply the product to create an instant watertight barrier that remains in place until you’re ready for a more permanent solution. See more detailed application details here.
It’s ideal for quick patches on gutters, felt, tiles and joints – all areas where sudden leaks are all too common. Plus, it cures quickly to form a flexible and durable seal that won’t crack or peel, giving you peace of mind in the worst weather.

If you’re experiencing water damage that can’t wait, Thompson’s Emergency Roof Seal delivers a heavy-duty fix. Designed to bridge cracks and fill gaps, it can be used in adverse weather conditions and is effective immediately. Use it on garages, sheds and flat roofs where the weather can do the most damage over time.
For roof jobs that require more than a quick fix, Thompson’s 10 Year Roof Seal offers serious long-term protection. This flexible, UV-resistant coating shields your roof for up to a decade and becomes rainproof in just six hours. It’s ideal for flat or pitched roofs, garages, sheds, and outbuildings; anywhere long-term durability is a must.
Start with a clean, dry surface. Apply a thick, even coat and follow up with a second layer for optimal results. It’s easy to apply with a brush or roller, delivering a tough, waterproof finish that withstands heavy rain, frost and sun. In a climate as unpredictable as the UK’s, this kind of protection isn’t just reassuring – it’s essential.
Find more details about how best to apply Thompson’s 10 Year Roof Seal here.
Whether you need an emergency quick fix or a complete roof overhaul, Thompson’s has a solution that matches the scale and urgency of your leak.