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Compare free conservatory roof repair quotes from Cardiff roofers. Covering Canton, Roath, Grangetown, Llanishen, Splott, Whitchurch...
Updated: 28 Sep 2026
28 Sep 2026
Polycarbonate Edge Trim Repair — Polycarbonate, larger roof (~15m²) (Canton). Perished glazing bar gaskets. Steep garden slope complicates ladder setup. persistent since spring.
23 Sep 2026
Lantern Drainage Slot Clean — Lantern / Skylight, 10m² (Heath). Ridge junction weeping under driving rain. Access via side gate, limited space for tower. first noticed during a cold snap. Small business owner needs urgent repair.
23 Sep 2026
Failed Roof Unit Replacement in Cathays on 22m² Glass (T-shaped) conservatory roof. Issue: Glazing beads not seated evenly after movement. Access: Front driveway, easy ladder access. persistent since spring. Ongoing maintenance request.
20 Sep 2026
Polycarbonate Edge Trim Repair in Penylan on small roof (9m²) Polycarbonate conservatory roof. Issue: Condensation forming within multiwall channels. Access: Tight courtyard – debris removal by hand. Ongoing maintenance request.
16 Sep 2026
After Storm Damage: Skylight Condensation Investigation — Lantern / Skylight, larger roof (~16m²) (Cathays). Ridge junction weeping under driving rain. Tight courtyard – debris removal by hand. after last week’s heavy rain.
15 Sep 2026
Abutment Soaker Replacement — Flashing / Wall Abutment, approx. 22 square metres (Llandaff). Loose fixings pulling flashing away from wall. Conservatory roof fragile - boards required. noticed during recent storms.
12 Sep 2026
Splott: UV-Damaged Trim Replacement on approx. 24 square metres Gaskets & Trims (uPVC). Leaks appearing only in heavy downpours. Rear alley access but no vehicle parking. first noticed during a cold snap. Request from landlord of rental property.
9 Sep 2026
Standing Water – Regrade Box Gutter in Cathays on larger roof (~16m²) Box Gutter / Drainage conservatory roof. Issue: Pooling water around box gutter outlet. Access: Shared boundary access agreed with neighbour. leak only visible during prolonged downpours.
8 Sep 2026
After Storm Damage: Ridge Cap Refix in Penylan on about 10m² Tiled Warm Roof (Lean-to) conservatory roof. Issue: Missing or slipped lightweight tiles. Access: Shared boundary access agreed with neighbour. Ongoing maintenance request.
5 Sep 2026
Draft-Proof Roof Perimeter in Roath on larger roof (~24m²) Gaskets & Trims (uPVC) (T-shaped) conservatory roof. Issue: Incompatible sealant used previously – not bonding. Access: Access via side gate, limited space for tower. Request from landlord of rental property.
3 Sep 2026
Penylan: Underlay Patch & Rebatten (localised) on approx. 18 square metres Tiled Warm Roof. Noisy rain on polycarbonate reported. Front driveway, easy ladder access.
1 Sep 2026
Abutment Soaker Replacement — Flashing / Wall Abutment, approx. 22 square metres (Ely). Loose fixings pulling flashing away from wall. Rear garden only, narrow ladder access. noticed while cleaning roof panels. Homeowner preparing to sell.
| Job | Basis | Typical Range |
|---|---|---|
| Replace one polycarbonate panel | per panel | £161 - £321 |
| Replace one glass roof unit | per unit | £268 - £535 |
| Box gutter clean & reseal | job | £128 - £268 |
| Lead flashing renewal | job | £214 - £428 |
| Replace glazing bar gaskets | per bar | £86 - £161 |
| End cap replacement set | set | £64 - £128 |
| Internal reseal against leaks | job | £161 - £321 |
| Full polycarbonate roof re-sheet | 20m² | £1,926 - £2,996 |
| Lightweight tiled roof conversion | 20m² | £6,420 - £10,700 |
| Add insulation & plaster ceiling | 20m² | £1,605 - £2,675 |
Guide prices only. Actual quotes vary by access, substrate condition, detailing, and material choice.
| Type | Number | Share |
|---|---|---|
| Glass | 4 | 13% |
| Polycarbonate | 6 | 20% |
| Flashing / Wall Abutment | 6 | 20% |
| Box Gutter / Drainage | 3 | 10% |
| Gaskets & Trims (uPVC) | 5 | 17% |
| Lantern / Skylight | 4 | 13% |
| Tiled Warm Roof | 2 | 7% |
(Number of quote requests received in and around Cardiff over the previous 12 weeks)
29 Sep 2026
Localised leak on Polycarbonate traced to gasket shrinkage. Joints cleaned and re-sealed; drainage paths cleared.
| Step | Description | Minutes |
|---|---|---|
| Trace | Hose test; identify ingress point. | 18 |
| Seal | Replace/augment gaskets; apply sealant sparingly. | 28 |
| Drainage | Clear box gutter/outlets; final check. | 13 |
Estimated time: ~59 minutes
21 Sep 2026
Light clean and joint refresh to address Condensation forming within multiwall channels on Polycarbonate.
| Step | Description | Minutes |
|---|---|---|
| Clean | Warm soapy wash; rinse. | 21 |
| Joint tidy | Lift cap; wipe; re-seat and clip. | 21 |
| Seal | Seal minor gaps; inspect end tapes. | 13 |
Estimated time: ~55 minutes
We always recommend hiring qualified Cardiff conservatory roof specialists for leaks, replacements or structural issues. For confident homeowners with the right tools and PPE, small maintenance jobs such as clearing gutters, replacing end caps, or resealing trims may sometimes be attempted yourself.
We’re still gathering supplier information for Cardiff.
In the meantime, you can search for conservatory roof suppliers in Cardiff on Google Maps.
Note: Listings are for convenience only; we do not recommend or endorse any individual supplier.
Barry - 6.5 miles
25 Sep 2026
Newport - 10.7 miles
24 Sep 2026
Pontypridd - 11.0 miles
22 Sep 2026