100% of window glass is recyclable, it also has a lower melting point than glass bottles making it cheaper to process due to the reduced energy costs.

By recycling window glass we could be saving thousands of tones of new virgin sand extraction.

Creates a circular economy around a material that is 100% recyclable

Glass takes an extraordinarily long time to break down in the ground — estimates range from around 4,000 years to over 1 million years, and in landfill conditions it may effectively never decompose.

Why glass lasts so long

Glass is made from silica, which is chemically very stable.

It is non‑biodegradable, meaning no microorganisms can break it down.

Landfills are dry, compacted, oxygen‑poor environments — conditions that slow decomposition even further.

Your old double‑glazing units won’t break down — they’ll sit in the ground for thousands to millions of years, leaching wasted resources, taking up precious landfill space, and contributing to the growing environmental burden we’re leaving behind for future generations.

Every unit buried is a permanent scar on the landscape — glass simply doesn’t decompose.”

Landfills are overflowing, yet perfectly recyclable glass is still being dumped instead of reused.

When recyclable materials are buried, we’re not just wasting resources — we’re accelerating climate and ecological damage.

Recycling glass saves energy, reduces carbon emissions, and protects natural sand reserves — but none of that happens when old units are thrown into landfill.