Some flat roofs only need a sound local repair, others are past it. The deck beneath and how widespread the damage is will tell you which.
Many homes in Hillfields have a garage roof, a rear extension or a porch with a flat covering, and many of those are showing their age. Repair or replace is the question we get most. The honest answer comes from the covering, the deck and the edges, not from a rule of thumb, and here is how we reach it.
What we inspect
We look over the whole surface for splits, blisters, ponding and open joints, then check the edges, upstands and outlets. We probe suspect areas to see whether the deck beneath is firm. Photographs of anything unusual are shared with you, so you can see for yourself what we found. Where we probe, we aim to cause as little disturbance as possible.
Repair is right when
Damage is local and the rest of the covering is firm. A single split, a failed lap, a lifted upstand or a blocked outlet can be mended well, and the repair should hold as long as the surrounding material is sound. On a small garage roof that has simply been neglected, clearing, patching and re-sealing may be enough to put things right for some time. We tell you plainly when a patch is a good use of money.
- Single seam or joint failure
- Torn or punctured patch that can be neatly mended
- Failed upstand or edge trim
- Blocked outlet causing ponding that has stopped water draining away
Replacement is right when
If the covering is cracking in many places, if it has been patched repeatedly, or if the deck has gone soft, repair spends money without solving the problem. Replacement strips the old covering, renews rotten boards, corrects falls and fits a new system. For flat roofs on garages and extensions this is often the lasting answer. In that case spending on repairs only delays the same conclusion.
- Widespread cracking or crazing that has spread across the roof surface
- Soft or rotten decking beneath
- Saturated insulation in the layers beneath the covering
- Repeated failed patches that keep returning after each repair
Materials and falls
Single-ply rubber, fibreglass and felt systems each suit different roofs. We choose by shape, number of penetrations and how the edges are finished. Whichever system is used, falls matter: a deck that holds water will fail again sooner. Where the existing fall is poor, we say what correcting it involves. Materials are explained in everyday terms.
Getting an honest answer
Ask for the reasons behind a recommendation and the alternatives. A roofer who only offers one option without evidence is guessing. We would rather tell you a patch will do than sell a new roof. Where work may need planning or Building Regulations checks, we advise before work starts. We would rather lose a job than oversell one.
Frequently Asked Questions
Can a garage flat roof be repaired when it is old?
Yes, if the deck is dry and sound and the damage is limited. Age alone is not the test. We check condition, then tell you whether a repair is worthwhile or just delaying the inevitable. so the repair choice makes sense.
What if the ceiling below is already stained?
A stain tells us water has been getting in. We check how far the damp has spread in the deck and insulation. Wet or rotten material has to come out, which usually points towards replacement of that section. We show you what we find.
Is replacing only part of a flat roof possible?
Where an extension and a porch have separate roofs, one can be replaced alone. Within a single continuous roof, partial replacement is harder to make watertight, so we advise honestly on what holds up. Honesty about this saves money.
Talk to our team about flat roofing in Hillfields
Every roof is different — the fastest way to get an accurate answer is a quick chat with our team.