Archives: Case Studies

Three roof windows installed side by side on a low-pitch tiled roof, with a plastic sheet covering part of the left-hand window apron area

Leaks at the Bottom of Roof Windows on a Low-Pitch Roof: How to Diagnose and Fix Them Properly

A homeowner has five roof windows fitted into a low-pitch kitchen roof, all installed about five years ago. Three of them have started letting water into the roof space, not through the glass itself but down near the bottom apron – the moulded flashing piece that sits below the window and laps over the roof

Leaks at the Bottom of Roof Windows on a Low-Pitch Roof: How to Diagnose and Fix Them Properly Read More »

Old square cast-iron floor gully set into cracked concrete in a Victorian side return, with a black plastic soil pipe and a grey waste pipe discharging into it from above.

Repairing a Sunken Clay Gully in a Victorian Side Return: Diagnosis and Options

A homeowner in a late-Victorian London terrace has damp showing up on the inside wall of the side return, right by where the main rainwater downpipe and the kitchen waste (sink, washing machine, dishwasher, boiler condensate) both discharge into an old square clay gully set into a concreted side return. The gully has sunk slightly,

Repairing a Sunken Clay Gully in a Victorian Side Return: Diagnosis and Options Read More »

Close-up of a centre-pivot roof window friction hinge mechanism showing the curved metal pivot arm and fixing screws on a dark frame

Velux Centre-Pivot Roof Window Won’t Stay Open: Diagnosing and Fixing Weak Hinge Friction

A homeowner has recently had a new extension built with two large centre-pivot roof windows fitted. They've bought the opening pole, but when they push the window open it swings straight back shut under its own weight. Both windows are behaving the same way. They're not sure whether this is something they can sort themselves

Velux Centre-Pivot Roof Window Won’t Stay Open: Diagnosing and Fixing Weak Hinge Friction Read More »