On average, you can expect to pay between £60 and £150 per unit for a standard size replacement. Larger or more specialised units might cost between £150 and £300. These prices typically include supply, fitting, and disposal of the old unit.

Mr Larkin added, “We’d definitely recommend Star Glazing to anyone needing replacement sealed units in Towcester. It’s affordable, fast, and you don’t have to replace the whole window.”

By replacing only the sealed units, you save money, reduce waste, and get the same great result: clear, energy-efficient windows. It’s a quick process too.

When choosing energy-efficient windows, understanding U-values is essential. But what are U-values in double glazed sealed units, and why do they matter?

If you’re experiencing misty, fogged-up, or broken double glazing, Star Glazing™ are your first choice for replacement sealed units in Milton Keynes. Whether you want to improve energy efficiency, enhance home aesthetics, or fix damaged glass, replacing sealed units is often more cost-effective than installing entirely new windows.