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.
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.”
All prices are guides — we always provide a free, itemised quote before any work begins. No hidden fees.
Minor tile work to full valley repairs
Full re-roof, materials and labour
GRP, EPDM or felt, size dependent
Clean, repair or full replacement
Repointing, flashing, pot replacement
Same-day response, 24/7 availability
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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