Clear advice first
The details make the flat roof.
A flat roof relies on sound falls, outlets, upstands, edge details and compatible materials. We inspect the full area—not only the visible split—before recommending a repair or replacement suited to the roof and its remaining condition.
Flat-roof issues we assess
- ✓Splits, cracks, blisters or lifted laps
- ✓Ponding water and slow drainage
- ✓Leaks at upstands, outlets and roof edges
- ✓Perished felt or damaged membrane
- ✓Failed details around rooflights or abutments
- ✓An ageing garage, porch or extension roof
Choosing the right response
Find the failure point
We review the covering, perimeter, drainage and penetrations to understand why water is entering.
Compare repair and replacement
A local repair may suit an otherwise sound roof; widespread ageing can make replacement better value.
Install compatible details
The chosen system is completed with appropriate falls, edges, upstands and outlets.
Planning a garage or extension roof replacement
Compare the complete roof specification when considering replacement. The covering is only one part of the work; the condition underneath and the drainage details also matter.
- Ask whether the quotation allows for inspecting the deck and pricing any damaged sections separately.
- Confirm the proposed covering and why it suits the existing roof, use and surrounding details.
- Discuss falls, outlets, perimeter edges and connections to walls or rooflights.
- Ask how insulation and ventilation will be assessed as part of the proposed roof construction.
- Agree how the building will be protected while work is under way and how waste will be removed.
Compare the complete flat-roof system
For a felt or membrane roof, including EPDM where suitable, ask about the supporting deck, falls, outlets, upstands and edge details as well as the covering. The specification should suit the building and existing construction. A material name alone does not explain how leaks or poor drainage will be addressed.
When a local flat-roof repair may be practical
A local defect may be repairable where the surrounding covering and deck remain sound and compatible repair materials are available. Multiple failing areas, persistent ponding or a softened deck require a wider assessment. A surface patch cannot correct every underlying problem.
Tell us whether the roof is over a garage, porch, extension or commercial space, the approximate size and where water appears. Mention rooflights, wall junctions and previous repairs. Our inspection service can help establish the relevant condition, while the repair cost guide explains access and scope factors.