Velux installation, replacement and flashing repair across Canterbury and East Kent. Correct flashing kit for Canterbury's clay tile stock. Conservation area advice. Free surveys.
Most Canterbury roof problems show up as a damp patch, a dislodged tile visible from the street, or grit from the roof in the gutters. Here is how to tell a repair from something bigger.
When it is not the answer: If more than about a third of the covering has failed — widespread nail sickness across a whole slope — repairing tile-by-tile is money wasted. Read the full guide.
We trace the leak to its real source — often a metre up-slope of the internal stain — rather than patching the symptom.
A fixed price with the cause, the fix and any access clearly listed. No call-out fee.
Non-urgent repairs booked within a few days; genuine leaks made weathertight same-day.
The failed element is renewed in matched materials and the surrounding area checked.
Debris cleared, work shown to you, and the repair guaranteed in writing.
| Job | Typical duration |
|---|---|
| Slipped or cracked tiles | 1–2 hours |
| Lead flashing renewal | Half a day |
| Rear valley rebuild | 2–3 days |
| Chimney flashing | Half to one day |
Wet or high-wind days pause tiling; we build weather margin into every booking and make leaks safe first.
Most Canterbury repairs run from a tower or roof ladder; scaffold is quoted only where the job needs safe standing time at height. Scaffold is specified for: chimney-side repairs, full valley rebuilds and anything beyond a day at height - always itemised in your written quote, never a hidden extra, and we arrange it.
Canterbury’s medieval core and the Victorian terraces off Wincheap and St Dunstan’s often mean tight frontages, shared rear access and conservation-street constraints, so scaffold and skip placement take planning. Pavement scaffold and skip permits go through Canterbury City Council; allow a few working days on streets like Palace Street, Burgate, St Dunstan’s Street where space is tight.
Installation · Replacement · Leak repair · Correct flashing spec
Canterbury's loft conversion market has grown steadily as homeowners seek to add space without moving, and roof windows are central to most loft conversion specifications. The city's Victorian and Edwardian terraces in St Dunstan's, Wincheap and Hales Place are particularly active for loft conversions, as their steep pitched roofs (typically 40–45 degrees) provide good head height and maximise the usable floor area.
The most common Velux-related job we attend in Canterbury is a leak diagnosis — and in the majority of cases the window itself is not the problem. The standard Velux EDL flashing kit fitted to flat or low-profile concrete tile is not compatible with Kentish plain clay tile, which has a significantly deeper profile. When the wrong flashing kit is installed, gaps open at the flashing/tile junction within a few years and allow water ingress that is frequently misdiagnosed as a failed window. We identify and correct this regularly across Canterbury's period housing stock.
New Velux installation (all sizes and specifications), replacement of failed or end-of-life units, flashing replacement and repair on existing windows, conservation area planning advice and application support, loft conversion roof window packages including multiple units and fixed/opening combinations, and solar-powered and electric remote-operated Velux specification.
“Velux in our loft conversion had been leaking for two winters. Every roofer said it needed a new window. Canterbury Roofing correctly identified it as a flashing failure, replaced the kit and it has been bone dry since. Saved me £600.”
“Two new Velux windows installed in our Victorian terrace in St Dunstan's. They checked the planning position first, used the correct clay tile flashing kit, finished in a day. No issues whatsoever.”
“Replaced a failed Velux unit on our 1960s bungalow in Barton. Measured correctly, supplied the right size, fitted properly. No fuss, tidy work.”
| Job | Typical range | Notes |
|---|---|---|
| Slipped or cracked tiles | £150–£300 | Per visit, incl. access |
| Ridge tile re-bed (section) | £250–£500 | Matched mortar |
| Lead flashing repair | £250–£600 | Correct lead code |
| Valley repair / re-line | £400–£900 | Tiles lifted both sides |
| Chimney flashing renewal | £300–£600 | Scaffold may apply |
| Emergency make-safe | £150+ | Out-of-hours premium applies |
Worked example: Three slipped tiles and a loose ridge section on a 1930s semi in Hales Place: about £280 in a single visit.
No deposit on repairs under £500. Nothing paid before materials are on site. Itemised VAT invoice on completion.
Covering CT1, CT2, CT3, CT4 and surrounding postcodes.
Workmanship on the repaired section is covered for 10 years in writing; any replacement tiles carry their manufacturer warranties on top.
If a fault appears in covered work, we come back and put it right. No quibbling, no re-charge.
Usually a day of ladder or tower work and a little tile debris — we sheet below the work area and clear before we leave. You do not need to stay home for external work - we just need power and access agreed in advance.
Repairs run year-round; temporary weatherproofing goes on the same day if rain stops work. The Stour valley holds humidity, so drying times lengthen in autumn and moss returns fast on north-facing and tree-shaded roofs.
A single Velux roof window installation in Canterbury including the window unit, flashing kit, internal lining and decoration typically costs £700–£1,400 depending on window size, roof type and height. Conservation area properties requiring slate or clay tile flashing kits rather than standard lead may be at the higher end. Replacement of existing Velux units costs £400–£800 depending on size and age.
In most cases, roof windows that do not project beyond the existing roof plane are permitted development. However, properties in Canterbury's conservation areas, listed buildings, and properties in Article 4 direction areas may require prior approval or listed building consent before a roof window is installed. We check the planning position as part of the free survey and will advise on the correct process for your property.
Yes. Leaking Velux windows in Canterbury are almost always a flashing failure rather than a window failure — the window itself rarely leaks. We carry out Velux flashing replacement using manufacturer-approved kits, which restores the watertight seal without replacing the window. If the window glass or mechanism has failed we can replace the complete unit.
Velux EDW (profiled tile) flashing kits are specified for Kentish plain clay tile and interlocking clay tile roofs in Canterbury. Standard EDL flashing kits are used on concrete interlocking tile. Using the wrong flashing kit is the most common cause of Velux leaks on Canterbury properties — we always specify the correct kit for the roof covering before quoting.
Roof windows in conservation areas require careful assessment. As a general principle, windows on the rear roof slope that are not visible from the street or a public area are more likely to be permitted development. Front elevation roof windows or those visible from the street may require consent and must not project beyond the roof plane. We advise on this as part of every conservation area survey.
Yes — we cover the surrounding towns and villages across East Kent:
No call-out fees. No obligation. An honest quote from a local Canterbury roofer who turns up when they say they will.
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