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Compare free flat roof repair quotes from Cardiff roofers. Areas covered include Canton, Roath, Grangetown, Llanishen, Splott, Whitchurch...
Last updated: 11 Jan 2026
11 Jan 2026
PVC Membrane Patch — PVC, approx. 16 square metres (Llanishen). Seam re-weld required. Rear garden only, narrow ladder access. first seen this winter. Homeowner preparing to sell.
10 Jan 2026
Asphalt Roof Leak — Asphalt, approx. 9 square metres (Llanishen). Crazing on sun-exposed area. Scaffold tower likely (two-storey rear). worsened over the past month.
9 Jan 2026
Felt Roof Leak — Felt, approx. 15 square metres (Cathays). Blistering and splits. Front driveway, easy ladder access. after last week’s heavy rain. Small business owner needs urgent repair.
4 Jan 2026
EPDM Edge Re-bond — EPDM, approx. 12 square metres (Penylan). Split seam at corner. Through garage, internal ladder route. Ongoing maintenance request.
3 Jan 2026
Loose Seams Repair — Metal, approx. 15 square metres (Ely). Loose fixings causing drips. Scaffold tower likely (two-storey rear). after last week’s heavy rain. Ongoing maintenance request.
1 Jan 2026
Pontcanna: Single Ply Leak Investigation on about 24m² PVC. Puncture in field area. Front driveway, easy ladder access. after last week’s heavy rain.
27 Dec 2025
Parapet Asphalt Crack — Asphalt, about 14m² (Roath). Crazing on sun-exposed area. Rear garden only, narrow ladder access. persistent since spring. Insurance inspection pending.
26 Dec 2025
Rubber Roof Seam Fix — EPDM, about 22m² (Roath). Small puncture near outlet. Side alley access (tight).
25 Dec 2025
Asphalt Roof Leak in Penylan on about 10m² Asphalt roof. Issue: Crazing on sun-exposed area. Access: Front driveway, easy ladder access. noticed during recent storms.
20 Dec 2025
Fibreglass Roof Leak — GRP, 32m² (Rhiwbina). Pooling water near outlet. Through garage, internal ladder route. Small business owner needs urgent repair.
20 Dec 2025
Asphalt Roof Leak — Asphalt, about 22m² (Ely). Crazing on sun-exposed area. Narrow side passage; debris removal tricky. after last week’s heavy rain.
17 Dec 2025
Bitumen Roof Patch in Cathays on small section (9m²) Corrugated roof. Issue: Perished lap sealing. Access: Through garage, internal ladder route. first seen this winter.
| Job | Basis | Typical Range |
|---|---|---|
| Small patch repair | job | £128 — £268 |
| Edge reseal (localised) | job | £193 — £375 |
| Felt re-cover (20m²) | 20m² | £1,284 — £1,926 |
| GRP re-cover (20m²) | 20m² | £1,712 — £2,568 |
| EPDM re-cover (20m²) | 20m² | £1,605 — £2,354 |
Guide prices only. Actual quotes vary by access, substrate condition, detailing, and material choice.
| Material | Count | Share |
|---|---|---|
| PVC | 8 | 27% |
| GRP | 5 | 17% |
| Metal | 2 | 7% |
| Corrugated | 3 | 10% |
| Asphalt | 5 | 17% |
| EPDM | 5 | 17% |
| Felt | 2 | 7% |
Based on quote requests logged for Cardiff in the last 12 weeks.
13 Jan 2026
Open seam re-welded with hot-air. Field checked for punctures; perimeter trims inspected and tightened. Autumn/Winter weather likely contributed.
| Step | Description | Minutes |
|---|---|---|
| Clean seam | Clean seam edges; align. | 13 |
| Hot-air weld | Re-weld seam; test with probe. | 24 |
| Perimeter | Check trims; tighten fixings; seal where needed. | 15 |
Estimated time: ~52 minutes
6 Jan 2026
Adhesive failure at perimeter. Edges cleaned and re-bonded with contact adhesive; termination bar tightened and sealed. Autumn/Winter weather likely contributed.
| Step | Description | Minutes |
|---|---|---|
| Edge prep | Lift back; clean mating surfaces. | 23 |
| Re-bond | Contact adhesive; allow flash-off; re-bond. | 24 |
| Terminate | Tighten termination bar; seal fixings. | 16 |
Estimated time: ~63 minutes
We always recommend hiring qualified Cardiff roofers for flat roof repairs - especially for larger leaks, structural issues, or anything above ground-floor level. If you have experience, the right tools and PPE, and the task is minor, some small fixes may be attempted yourself.
Unit 36 Portmanmoor Rd, Estate, Cardiff CF24 5HB
Unit B1, St. Catherine's Park, Pengam Road, Cardiff CF24 2RZ
Gate 2, Whittle Road, Cardiff, CF11 8AT
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