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Compare free conservatory roof repair quotes from London roofers. Covering Croydon, Harrow, Bromley, Enfield, Hounslow, Islington...
Updated: 30 Mar 2026
30 Mar 2026
Harrow: Inspection: Broken/Slipped Roof Pane on larger roof (~14m²) Glass (L-shaped). Blown unit with condensation between panes. Steep garden slope complicates ladder setup.
28 Mar 2026
Downpipe/Spout Unblock & Test in Islington on about 6m² Box Gutter / Drainage (P-shaped) conservatory roof. Issue: Cold spots and heat loss in winter. Access: Shared boundary access agreed with neighbour. persistent since spring. Ongoing maintenance request.
27 Mar 2026
Lantern Base Seal Renewal in Harrow on approx. 10 square metres Lantern / Skylight conservatory roof. Issue: Leak at lantern base due to failed seal. Access: Access only via conservatory itself (internal). Ongoing maintenance request.
23 Mar 2026
Mortar Joint Rake & Repoint — Flashing / Wall Abutment, approx. 10 square metres (Islington). Staining on internal reveal at abutment. Access only via conservatory itself (internal).
23 Mar 2026
Capping Strip Repair in Bromley on 22m² Gaskets & Trims (uPVC) (T-shaped) conservatory roof. Issue: Perimeter draughts at closure trims. Access: Through garage, internal ladder route. first noticed during a cold snap. Homeowner preparing to sell.
21 Mar 2026
Glazing Bead Refit & Seal in Bromley on about 10m² Glass conservatory roof. Issue: Minor scratches/etching reducing clarity. Access: Shared boundary access agreed with neighbour.
17 Mar 2026
Hounslow: Abutment Soaker Replacement on about 22m² Flashing / Wall Abutment. General ageing of seals and trims. Shared boundary access agreed with neighbour. Request from landlord of rental property.
15 Mar 2026
Harrow: Box Gutter Leak Repair on about 15m² Box Gutter / Drainage. Condensation visible on cool mornings. Steep garden slope complicates ladder setup. Small business owner needs urgent repair.
14 Mar 2026
Richmond: Polycarbonate Panel Repack & Refix on about 14m² Polycarbonate (P-shaped). Screw fixings pulling through after wind uplift. Narrow side passage; debris removal tricky. Ongoing maintenance request.
10 Mar 2026
Enfield: End Cap Set Replacement on approx. 12 square metres Gaskets & Trims (uPVC) (Orangery). Perimeter draughts at closure trims. Scaffold tower likely (two-storey rear). first noticed during a cold snap.
9 Mar 2026
Replace Perished Gaskets — Gaskets & Trims (uPVC), approx. 18 square metres (Hackney). Missing clips allowing cap lift. Full scaffold needed due to height/obstructions.
7 Mar 2026
Internal Drip – Trace & Test — Box Gutter / Drainage, 8m² (Harrow). Standing water/ponding in box gutter. Conservatory roof fragile - boards required. appeared suddenly after recent heatwave.
| Job | Basis | Typical Range |
|---|---|---|
| Replace one polycarbonate panel | per panel | £141 - £282 |
| Replace one glass roof unit | per unit | £235 - £470 |
| Box gutter clean & reseal | job | £113 - £235 |
| Lead flashing renewal | job | £188 - £376 |
| Replace glazing bar gaskets | per bar | £75 - £141 |
| End cap replacement set | set | £56 - £113 |
| Internal reseal against leaks | job | £141 - £282 |
| Full polycarbonate roof re-sheet | 20m² | £1,692 - £2,632 |
| Lightweight tiled roof conversion | 20m² | £5,640 - £9,400 |
| Add insulation & plaster ceiling | 20m² | £1,410 - £2,350 |
Guide prices only. Actual quotes vary by access, substrate condition, detailing, and material choice.
| Type | Number | Share |
|---|---|---|
| Flashing / Wall Abutment | 6 | 20% |
| Box Gutter / Drainage | 5 | 17% |
| Gaskets & Trims (uPVC) | 7 | 23% |
| Lantern / Skylight | 4 | 13% |
| Polycarbonate | 4 | 13% |
| Tiled Warm Roof | 2 | 7% |
| Glass | 2 | 7% |
(Number of quote requests received in and around London over the previous 12 weeks)
30 Mar 2026
Leak at lantern base on Lantern / Skylight resolved by removing failed sealant, resealing and clearing frame drainage.
| Step | Description | Minutes |
|---|---|---|
| Strip & clean | Remove old sealant; clean frame base. | 14 |
| Reseal | Apply new bead; ensure continuity. | 23 |
| Drainage | Clear slots; confirm outflow. | 8 |
Estimated time: ~45 minutes
21 Mar 2026
General make-good to flashing/abutment on Flashing / Wall Abutment following General ageing of seals and trims.
| Step | Description | Minutes |
|---|---|---|
| Inspect | Identify weak points. | 10 |
| Make-good | Seal/refix as required. | 20 |
| Test | Light hose test; photo log. | 8 |
Estimated time: ~38 minutes
We always recommend hiring qualified London 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 London.
In the meantime, you can search for conservatory roof suppliers in London on Google Maps.
Note: Listings are for convenience only; we do not recommend or endorse any individual supplier.
Watford - 15.3 miles
31 Mar 2026
Slough - 20.1 miles
31 Mar 2026
Basildon - 26.9 miles
27 Mar 2026