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Compare free conservatory roof repair quotes from Cardiff roofers. Covering Canton, Roath, Grangetown, Llanishen, Splott, Whitchurch...
Updated: 19 Oct 2025
19 Oct 2025
Mortar Joint Rake & Repoint (Edwardian) — Flashing / Wall Abutment, 10m² (Penylan). Open chase where roof meets house wall. Rear alley access but no vehicle parking.
19 Oct 2025
Roath: Panel Reseat & Reseal on about 22m² Polycarbonate (P-shaped). Noisy rain on polycarbonate reported. Narrow side passage; debris removal tricky. Small business owner needs urgent repair.
19 Oct 2025
Wall Abutment Re-seal — Flashing / Wall Abutment (P-shaped), larger roof (~24m²) (Splott). Water tracking behind flashing on heavy rain. Through garage, internal ladder route.
13 Oct 2025
Misted Double-Glazed Roof Unit — Glass, 20m² (Splott). Leaks appearing only in heavy downpours. Front driveway, easy ladder access. Homeowner preparing to sell.
10 Oct 2025
Urgent: Counter-Flashing Install/Refix — Flashing / Wall Abutment (P-shaped), 8m² (Splott). Mortar failure along abutment line. Access only via conservatory itself (internal).
10 Oct 2025
Llanishen: Rebed Ridge System (clip/adhesive) on about 6m² Tiled Warm Roof. Fixings backed out on south-facing pitch. Neighbour access arranged.
2 Oct 2025
Cathays: Step Flashing Repair on approx. 10 square metres Flashing / Wall Abutment. Open chase where roof meets house wall. Access via side gate, limited space for tower. worsened over the past month.
1 Oct 2025
End Cap Replacement & Reseal in Llandaff on about 24m² Polycarbonate (Orangery) conservatory roof. Issue: Condensation forming within multiwall channels. Access: Narrow side passage; debris removal tricky.
1 Oct 2025
Urgent: Chase & Repoint Abutment in Pontcanna on larger roof (~22m²) Flashing / Wall Abutment (L-shaped) conservatory roof. Issue: Undersized flashing not covering profile. Access: Access via side gate, limited space for tower.
24 Sep 2025
Polycarbonate Roof Leak Investigation — Polycarbonate, about 10m² (Pontcanna). Perished glazing bar gaskets. Neighbour access arranged. first seen this winter. Ongoing maintenance request.
24 Sep 2025
Skylight Flashing Reseal — Lantern / Skylight (P-shaped), 22m² (Llanishen). Sealant smear over old silicone not bonding. Front driveway, easy ladder access. Insurance inspection pending.
23 Sep 2025
Polycarbonate Panel Replacement in Pontcanna on 20m² Polycarbonate (Gable-front) conservatory roof. Issue: Algae build-up holding moisture at joints. Access: Full scaffold needed due to height/obstructions. noticed while cleaning roof panels. Request from landlord of rental property.
| 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 |
|---|---|---|
| Tiled Warm Roof | 4 | 15% |
| Gaskets & Trims (uPVC) | 1 | 4% |
| Box Gutter / Drainage | 5 | 19% |
| Flashing / Wall Abutment | 7 | 26% |
| Lantern / Skylight | 3 | 11% |
| Glass | 3 | 11% |
| Polycarbonate | 4 | 15% |
(Number of quote requests received in and around Cardiff over the previous 12 weeks)
20 Oct 2025
Localised leak on Polycarbonate traced to gasket shrinkage. Joints cleaned and re-sealed; drainage paths cleared. Autumn/Winter weather likely contributed.
| Step | Description | Minutes |
|---|---|---|
| Trace | Hose test; identify ingress point. | 17 |
| Seal | Replace/augment gaskets; apply sealant sparingly. | 24 |
| Drainage | Clear box gutter/outlets; final check. | 16 |
Estimated time: ~57 minutes
13 Oct 2025
Minor draught/leak on Glass addressed by repacking and resealing beads. Autumn/Winter weather likely contributed.
| Step | Description | Minutes |
|---|---|---|
| Check | Inspect beads; identify gaps. | 15 |
| Repack | Adjust packers; refit beads. | 20 |
| Seal | Run neat perimeter bead. | 10 |
Estimated time: ~45 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
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Pontypridd - 11.0 miles
16 Oct 2025