Flat roof repair or replacement
A practical way to think about repeated leaks, isolated damage, ageing coverings and long-term value—without guessing from the ground.
Read the guideUnderstand the problem · Ask better questions
Clear, safety-first guides to help you understand the problem, ask better questions and make a more confident decision about your roof.

The J5 advice hub
No scare tactics and no DIY roof-climbing instructions. Just practical information based around common roofing questions.
A practical way to think about repeated leaks, isolated damage, ageing coverings and long-term value—without guessing from the ground.
Read the guideWhat rubber roofing is, where it works, why fitting details matter and what sensible maintenance looks like.
Read the guideSimple, safety-first steps to limit disruption indoors and give your roofer useful information—without getting on the roof yourself.
Read the guideReady when you are
Every roof is different. Call J5 or send a few details for advice about your property.