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Compare free conservatory roof repair quotes from London roofers. Covering Croydon, Harrow, Bromley, Enfield, Hounslow, Islington...
Updated: 29 Dec 2025
29 Dec 2025
Annual Box Gutter Service in Hounslow on 9m² Box Gutter / Drainage conservatory roof. Issue: Backfall towards the lantern base. Access: Rear garden only, narrow ladder access. Insurance inspection pending.
25 Dec 2025
Inspection: Cavity Tray Check Above Roofline in Kingston upon Thames on about 8m² Flashing / Wall Abutment conservatory roof. Issue: Split lead causing capillary drip. Access: Access only via conservatory itself (internal).
24 Dec 2025
Outlet Reseal — Box Gutter / Drainage, about 22m² (Barnet). Bird nesting material blocking weirs. Over conservatory extension — requires roof ladder. became worse after summer expansion/contraction. Homeowner preparing to sell.
21 Dec 2025
Polycarbonate Panel Replacement in Hackney on 8m² Polycarbonate conservatory roof. Issue: Algae build-up holding moisture at joints. Access: Rear alley access but no vehicle parking. Small business owner needs urgent repair.
19 Dec 2025
After Storm Damage: Skylight Flashing Reseal in Islington on approx. 20 square metres Lantern / Skylight conservatory roof. Issue: Misted unit within lantern requiring swap. Access: Steep garden slope complicates ladder setup. noticed while cleaning roof panels. Insurance inspection pending.
16 Dec 2025
Chase & Repoint Abutment in Enfield on approx. 22 square metres Flashing / Wall Abutment (Lean-to) conservatory roof. Issue: Staining on internal reveal at abutment. Access: Front driveway, easy ladder access. Small business owner needs urgent repair.
14 Dec 2025
Failed Roof Unit Replacement — Glass (Gable-front), about 16m² (Harrow). Thermal stress crack after cold snap. Tight courtyard – debris removal by hand. reported again after temporary DIY repair failed.
11 Dec 2025
Bromley: Skylight Flashing Reseal on about 20m² Lantern / Skylight (T-shaped). Water marks on plastered upstand beneath lantern. Scaffold tower likely (two-storey rear). problem ongoing since last autumn.
11 Dec 2025
Barnet: Warm Roof Re-seal at Eaves on larger roof (~24m²) Tiled Warm Roof (P-shaped). Loose verge detail letting in wind-driven rain. Conservatory roof fragile - boards required. Request from landlord of rental property.
9 Dec 2025
Replace Lantern Glass Unit in Bromley on larger roof (~24m²) Lantern / Skylight conservatory roof. Issue: Flashing lifted on one side. Access: Conservatory roof fragile - boards required. problem ongoing since last autumn.
6 Dec 2025
Croydon: Lead Flashing Renewal on small roof (9m²) Flashing / Wall Abutment (Gable-front). Split lead causing capillary drip. Access only via conservatory itself (internal). appeared suddenly after recent heatwave. Homeowner preparing to sell.
3 Dec 2025
Overflow Baffle/Deflector Install — Box Gutter / Drainage, 10m² (Hackney). Perished mastic at outlet. Rear garden only, narrow ladder access.
| 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 |
|---|---|---|
| Gaskets & Trims (uPVC) | 2 | 7% |
| Tiled Warm Roof | 6 | 20% |
| Box Gutter / Drainage | 7 | 23% |
| Polycarbonate | 4 | 13% |
| Glass | 3 | 10% |
| Flashing / Wall Abutment | 4 | 13% |
| Lantern / Skylight | 4 | 13% |
(Number of quote requests received in and around London over the previous 12 weeks)
31 Dec 2025
Ponding in box gutter serving Box Gutter / Drainage eliminated by local reline and improved fall; outlets enlarged where possible. Autumn/Winter weather likely contributed.
| Step | Description | Minutes |
|---|---|---|
| Clean & assess | Remove sludge; check joints and fall. | 17 |
| Reline/grade | Install liner; adjust battening to improve fall. | 37 |
| Outlet & test | Resize/clear outlet; water test. | 22 |
Estimated time: ~76 minutes
24 Dec 2025
Perished mastic at outlet on Box Gutter / Drainage renewed; leaf guard installed to prevent repeat blockage. Autumn/Winter weather likely contributed.
| Step | Description | Minutes |
|---|---|---|
| Strip | Remove old sealant; dry area. | 9 |
| Reseal | Apply mastic/liner patch. | 17 |
| Guard | Fit leaf guard; test flow. | 7 |
Estimated time: ~33 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 Dec 2025
Slough - 20.1 miles
28 Dec 2025
Basildon - 26.9 miles
28 Dec 2025