Articles on windows and their servicing

Draught from a window: why and what to do

A seal, adjustment or installation joints — how to find the cause of a draught and fix it in one visit.

Window won’t close: common causes and fixes

The sash catches, the handle stops halfway or the window needs force — what it means and how to fix it.

The handle spins freely: what it means

A worn spindle or hardware gearbox — how to tell them apart and what replacement costs.

A fogged glass unit: why and what to do

Mist between the panes means a lost seal. How to tell it from condensation and how replacement works.

Why You Must Never Put Anything Under a Window or Door Sash

A wedge under the sash breaks hinges and hardware. A real case: a broken hinge and the right fix — a reinforced hinge mounted in the hardware groove.

Glass Unit Replacement of Any Size: Plastic, Wood, Aluminium Windows, Roof Windows and Facade Structures

A cracked or fogged-up glass unit doesn't always mean you need a new window. Here's how to replace a glass unit of any size in any type of window or structure.

Professional Entrance Door Restoration: Hinge Replacement, Adjustment and Geometry Restoration

Creaking, sagging and poor closing don't always mean you need a new door. Here's how professional restoration brings back reliability and correct geometry.

Window frame reconfiguration without removal or reveal damage

A window frame's construction can be changed without removing the window or damaging the reveals. Here's when this is needed and what advantages this approach offers.

Latest articles on windows

Thermal shock — why glass can crack in a new window

Glass can crack without an impact — due to so-called thermal shock. Learn the causes, the characteristic cracks and how to protect a window from overheating.

How to check a glass unit at home?

A simple home test with a match — how to find out whether your window has energy-efficient Low-E glass. The four-flame-reflection method.

Weak spots that can cause problems

Typical window installation mistakes and their consequences — the seal, windowsill fitting and unprotected assembly foam. How to fix draughts, condensation and mould.

Why windows fog up and how it relates to heating

Condensation on windows is often not a window defect — the main cause is heating and air circulation. Learn the causes and practical solutions.