Flat Roof Repairs

Honest triage first — repair what's worth repairing.

Flat roof repair starts with a question pitched roofs rarely pose so starkly: is this covering worth repairing? Because flat coverings are single skins with finite lives, the answer is genuinely sometimes no — and a roofer who patches a finished roof without saying so is selling you the same visit annually.

The faults we repair with a clear conscience: local splits and punctures, lifted or failed joints in felt, blisters that have opened, cracked GRP at trims and upstands, failed edge trims letting water behind the fascia, and flashing failures where the flat roof meets a wall. All are honest repairs on a covering with life left in it.

The faults that tell the truth about age: crazing and blistering across the area, bare felt where the mineral surface has gone, ponding that returns within hours of rain, and a deck that feels soft or springy underfoot — that last one means water is already in the structure. There we'll quote the repair if one exists, and the replacement alongside, with our honest recommendation.

Benefits

Why choose Flat Roof Repairs

Straight answer on repair versus replacement, with numbers
Like-for-like repairs that bond to your covering
Edge, trim and junction faults — the usual culprits — fixed properly
Ponding causes identified, not just symptoms patched
Deck condition checked before money is spent above it

Features

What's included

Felt patching and joint re-torching
EPDM bonded patch repairs
GRP re-lamination and topcoat repairs
Edge trim and drip replacement
Upstand and abutment flashing repairs

Repair options

Repair or replace

Rules of thumb we work to: one fault on a covering under two-thirds of its expected life — repair. Multiple faults, or a covering past its era (any mineral felt from the last century qualifies) — price both ways, lean replacement. Water in the deck — replacement, because no covering fixes a wet structure. And on garages, where a season\'s grace is sometimes all that\'s wanted, we\'ll say plainly what a cheap patch will and won\'t do. Related: water coming through the ceiling.

Common questions

Frequently asked

Where is my flat roof most likely leaking? +

At its edges and details, in this order: the junction with the house wall, edge trims and drips into the gutter, around any skylight or pipe, then joints in the field of the roof. Genuine mid-sheet failures are the rarity — which is useful, because details are cheaper to fix.

Is liquid "flat roof paint" a real repair? +

Liquid coatings have legitimate professional uses on sound roofs needing a life extension. Brushed over cracks and wet felt from a tub, they're a cosmetic that fails in a season or two. If a coating is proposed, ask what's being done about the faults underneath it first — that answer tells you everything.

The ceiling stain is nowhere near any visible damage — how? +

Water that gets through a flat covering travels along the deck and drips at joints in the boards, often metres from the entry point. It's the flat-roof version of the pitched roof's wandering leak — and why we trace from the entry point down, not from the stain up.