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Compare free flat roof repair quotes from Cardiff roofers. Areas covered include Canton, Roath, Grangetown, Llanishen, Splott, Whitchurch...
Last updated: 2 Mar 2026
2 Mar 2026
Cathays: Steel/Aluminium Roof Patch on larger area (~28m²) Metal. Seam/joint split. Narrow side passage; debris removal tricky.
1 Mar 2026
Cathays: Flat Roof Felt Repair on about 14m² Felt. UV-cracked cap sheet. Side alley access (tight). worsened over the past month.
24 Feb 2026
Bitumen Roof Patch in Pontcanna on larger area (~14m²) Corrugated roof. Issue: Rust around fixings. Access: Scaffold tower likely (two-storey rear). worsened over the past month.
22 Feb 2026
GRP Crack Repair — GRP, approx. 10 square metres (Heath). Pinholes after impact. Front driveway, easy ladder access. Homeowner preparing to sell.
19 Feb 2026
GRP Topcoat Reseal in Grangetown on about 20m² GRP roof. Issue: Loose edge trims. Access: Narrow side passage; debris removal tricky. Request from landlord of rental property.
16 Feb 2026
Llanishen: Rubber Roof Seam Fix on about 24m² EPDM. Edge lifting (adhesive failure). Side alley access (tight). after last week’s heavy rain.
14 Feb 2026
Grangetown: GRP Topcoat Reseal on 32m² GRP. Condensation issues suspected. Narrow side passage; debris removal tricky.
12 Feb 2026
PVC Membrane Patch in Heath on approx. 16 square metres PVC roof. Issue: Puncture in field area. Access: Side alley access (tight). Request from landlord of rental property.
10 Feb 2026
Penylan: Fibre Cement Leak on about 12m² Corrugated. Perished lap sealing. Rear garden only, narrow ladder access. Request from landlord of rental property.
7 Feb 2026
Cathays: Fibre Cement Leak on 20m² Corrugated. Rust around fixings. Narrow side passage; debris removal tricky. Small business owner needs urgent repair.
4 Feb 2026
GRP Topcoat Reseal in Ely on larger area (~18m²) GRP roof. Issue: Loose edge trims. Access: Through garage, internal ladder route. after last week’s heavy rain. Request from landlord of rental property.
3 Feb 2026
GRP Crack Repair — GRP, 15m² (Penylan). Hairline cracks in topcoat. Narrow side passage; debris removal tricky.
| 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 |
|---|---|---|
| GRP | 7 | 23% |
| Asphalt | 3 | 10% |
| EPDM | 3 | 10% |
| PVC | 5 | 17% |
| Metal | 4 | 13% |
| Felt | 3 | 10% |
| Corrugated | 5 | 17% |
Based on quote requests logged for Cardiff in the last 12 weeks.
26 Feb 2026
Perished laps re-sealed and missing fixings replaced on Corrugated roof. Work carried out at two-storey height.
| Step | Description | Minutes |
|---|---|---|
| Clean | Clean lap areas. | 13 |
| Seal | Apply lap mastic/tape; compress. | 21 |
| Fixings | Replace/retighten fixings. | 13 |
Estimated time: ~47 minutes
18 Feb 2026
Minor seam attention on EPDM. Local re-bond and termination fixings re-sealed. Autumn/Winter weather likely contributed.
| Step | Description | Minutes |
|---|---|---|
| Clean & check | Clean seam; check for contamination. | 12 |
| Re-bond seam | Apply primer/adhesive; roll seam. | 21 |
| Termination | Tighten bar; seal fixings. | 14 |
Estimated time: ~47 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
Note: Merchant listings are provided for convenience; we don’t endorse any particular supplier.
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