I replace failed double glazed sealed units that are full of condensation, steamed/fogged up or simply broken down. I replace your individual sealed unit glass panes into your existing windows and door frames.
Unfortunately your double glazed windows and doors will not last for ever – FACT! A good manufactured sealed unit in our opinion should last 10 – 20 years. All sealed units will eventually fail and the cheapest and cleanest way to cure the problem is to replace them when they do.