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Compare free conservatory roof repair quotes from Cardiff roofers. Covering Canton, Roath, Grangetown, Llanishen, Splott, Whitchurch...
Updated: 12 Nov 2026
12 Nov 2026
Cathays: Lantern Ridge & Capping Service on larger roof (~18m²) Lantern / Skylight. Leak at lantern base due to failed seal. Neighbour access arranged. Homeowner preparing to sell.
8 Nov 2026
Inspection: Broken/Slipped Roof Pane — Glass, approx. 14 square metres (Llanishen). Thermal stress crack after cold snap. Full scaffold needed due to height/obstructions. worsened over the past month. Ongoing maintenance request.
7 Nov 2026
Splott: Ridge Cap Refix on about 24m² Tiled Warm Roof. Sealant failure at hip/ridge junction. Scaffold tower likely (two-storey rear). first noticed during a cold snap.
4 Nov 2026
Leak at Glazing Bar — Polycarbonate (T-shaped), small roof (8m²) (Grangetown). Panel slipped under storm load. Front driveway, easy ladder access. Request from landlord of rental property.
3 Nov 2026
Inspection: Abutment Soaker Replacement in Cathays on 9m² Flashing / Wall Abutment (L-shaped) conservatory roof. Issue: Sealant-only detail failing at movement joint. Access: Over conservatory extension — requires roof ladder. reported again after temporary DIY repair failed. Request from landlord of rental property.
31 Oct 2026
Llandaff: Wall Abutment Re-seal on about 20m² Flashing / Wall Abutment (Edwardian). Staining on internal reveal at abutment. Tight courtyard – debris removal by hand.
27 Oct 2026
Glazing Bead Refit & Seal in Llanishen on larger roof (~20m²) Glass conservatory roof. Issue: Minor scratches/etching reducing clarity. Access: Through garage, internal ladder route. persistent since spring. Request from landlord of rental property.
25 Oct 2026
Lantern Ridge & Capping Service in Splott on approx. 16 square metres Lantern / Skylight conservatory roof. Issue: Thermal movement opening cap joints. Access: Rear garden only, narrow ladder access. only apparent after snow melt. Request from landlord of rental property.
23 Oct 2026
After Storm Damage: Fit Leaf Guards to Outlets — Box Gutter / Drainage, about 10m² (Penylan). Failed joint tape at internal corner. Access via side gate, limited space for tower. Homeowner preparing to sell.
20 Oct 2026
Llandaff: Secure Loose Glazing Bar Cap on approx. 9 square metres Polycarbonate. Blocked gutters/downpipes after storms. Through garage, internal ladder route. problem ongoing since last autumn. Request from landlord of rental property.
18 Oct 2026
Top Capping Leak Investigation in Pontcanna on about 9m² Glass conservatory roof. Issue: Water tracking in at top capping. Access: Rear garden only, narrow ladder access. after last week’s heavy rain. Homeowner preparing to sell.
16 Oct 2026
Llanishen: Inspection: Outlet Reseal on about 14m² Box Gutter / Drainage. Standing water/ponding in box gutter. Full scaffold needed due to height/obstructions. 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 |
|---|---|---|
| Flashing / Wall Abutment | 6 | 20% |
| Tiled Warm Roof | 4 | 13% |
| Gaskets & Trims (uPVC) | 2 | 7% |
| Box Gutter / Drainage | 3 | 10% |
| Lantern / Skylight | 6 | 20% |
| Polycarbonate | 4 | 13% |
| Glass | 5 | 17% |
(Number of quote requests received in and around Cardiff over the previous 12 weeks)
9 Nov 2026
Loose ridge cap and draught at verge on Tiled Warm Roof corrected; ventilation path confirmed. Autumn/Winter weather likely contributed.
| Step | Description | Minutes |
|---|---|---|
| Remove & clean | Lift ridge/verge trims; clean. | 12 |
| Re-fix | Re-bed/clip ridge; secure verge. | 24 |
| Vent check | Confirm airflow; finish seal. | 13 |
Estimated time: ~49 minutes
1 Nov 2026
General make-good to flashing/abutment on Flashing / Wall Abutment following Staining on internal reveal at abutment. Autumn/Winter weather likely contributed.
| Step | Description | Minutes |
|---|---|---|
| Inspect | Identify weak points. | 9 |
| Make-good | Seal/refix as required. | 23 |
| Test | Light hose test; photo log. | 11 |
Estimated time: ~43 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
12 Nov 2026
Newport - 10.7 miles
12 Nov 2026
Pontypridd - 11.0 miles
10 Nov 2026