Dormer Windows — Stratford
Dormer Installation & Repair Specialists
Dormer windows create three separate waterproofing challenges simultaneously: the flat or pitched roof over the dormer structure, the cheek flashings on the vertical sides, and the apron flashing at the base where the dormer meets the main roof slope. All three interfaces must be correctly specified and executed for the dormer to remain watertight over its design life. A poorly waterproofed dormer is one of the most persistently problematic roofing situations we encounter — intermittent leaks that are hard to locate and easy to incorrectly repair.
We install new dormer window structures and carry out targeted waterproofing repairs on existing dormers across Stratford and Warwickshire. For new dormers on conservation area properties in Stratford's Old Town, we advise on planning requirements before any structural work begins — a dormer added without the appropriate consent can require costly removal. For leaking existing dormers, we assess all three potential failure points systematically before proposing any remedial work.
New Dormer Installations
A new dormer installation begins with assessment of the structural rafter arrangement in the existing roof, planning status confirmation, and specification of the dormer size and roof covering. For rear dormers on standard Stratford semis outside conservation areas, this is typically a straightforward permitted development project. For conservation area properties or larger loft conversion dormers, planning and structural engineer input is required before the roofing work begins.
Dormer Waterproofing Repairs
The most common dormer repair we carry out in Stratford is lead cheek flashing failure on older dormers. The lead flashing on the vertical cheeks of a dormer must be dressed over the tile or slate surface below and wedged into the timber cheek cladding above. Original lead on dormers built in the 1960s and 1970s is now typically at or past end of life. We re-dress with code 4 lead to correct lap dimensions and wedge into a proper chase rather than surface sealing, which is the correct long-term repair.
AccessAccess, Scaffolding & Permits in Stratford
Dormer work needs scaffold for safe access to the cheeks and top and to control the opening; it is itemised in the quote. Scaffold is specified for: new dormers and cheek re-cladding — anything needing sustained access at height - always itemised in your written quote, never a hidden extra, and we arrange it.
Victorian terraces off the Alcester Road and the Old Town lanes usually mean rear-access scaffold and permit-controlled pavement space, while the post-war Bishopton and Clopton estates give straightforward front access with room for a skip on the drive. Pavement scaffold and skip permits go through Stratford-on-Avon District Council; allow a few working days on streets like Sheep Street, Chapel Street, Church Street where space is tight.
Good to knowDisruption, Mess & Weather
Re-covering is contained and quiet; a new dormer involves internal work, dust and a week or two of scaffold, and we sheet the room and clear up daily. You do not need to stay home for external work - we just need power and access agreed in advance.
The Avon Valley's damp makes a fully impermeable dormer top — GRP or EPDM — and correctly lapped lead at the cheeks especially important against wind-driven rain. The Avon Valley's humidity slows drying times through autumn and speeds moss growth on shaded, north-facing slopes near the watermeadows.
Covering CV37, CV35, CV36, B49, B50 and surrounding postcodes.
