Problems

Condensation between panes means your sealed unit has failed. Diagnose the cause and find out whether you can replace the unit yourself or need a pro.

Window draughty? Find the cause fast — failed seals, gaps in silicone, faulty handles — with step-by-step DIY diagnosis and fixes for UK homeowners.

Door not closing properly? Diagnose the cause — swollen timber, loose hinges or latch misalignment — and fix it yourself with this UK DIY guide.