Window Envelopes

Shop window envelopes for efficient and professional mailing at The Green Office. Designed with a transparent address panel, these envelopes allow the recipient’s details to be displayed directly from the document inside, eliminating the need for manual addressing or labels.

Window envelopes are widely used for business correspondence, including invoices, statements and letters, helping streamline mailing processes and improve efficiency.

Envelopes with address windows for faster mailing

Window envelopes feature a clear panel that aligns with the address printed on the enclosed document. This allows the address to show through without additional printing or labelling, saving time and reducing errors in high-volume mailing environments.

They are commonly used in offices, finance departments and mailrooms where efficiency and accuracy are essential.

Ideal for invoices, statements and business letters

Window envelopes are a standard choice for sending invoices, billing statements, payslips and general correspondence. Their design ensures that the correct address is always visible, improving delivery accuracy and reducing administrative effort.

They are particularly useful when combined with pre-printed or automated document systems.

Available in DL, C4, C5 and other sizes

Our range includes popular sizes such as DL, C4 and C5, suitable for different document formats. DL envelopes are ideal for A4 letters folded into thirds, while C5 and C4 options allow for larger documents with minimal or no folding.

Choosing the correct size helps ensure documents fit properly and are presented professionally during delivery.

Different window positions and formats

Window envelopes are available with different window placements, including left-hand, right-hand and centred windows. This allows compatibility with a wide range of document layouts and printing templates.

Options include wallet and pocket styles, as well as gummed, self-seal and peel-and-seal closures for convenience.

Suitable for high-volume business mailing

Window envelopes are designed for efficiency, making them ideal for businesses that send large volumes of mail. They are commonly used with automated systems and bulk mailing processes to reduce handling time and improve workflow.

For high-volume operations, you may also find our machine envelopes useful, or explore our listing paper for continuous printing applications.

Professional appearance and organisation

Using window envelopes helps maintain a consistent and professional appearance across your business communications. They ensure addresses are clearly displayed and aligned, improving presentation and reducing the risk of delivery errors.

For general mailing needs, you can also browse our plain envelopes or padded bags for added protection.

Eco-friendly window envelope options

Many window envelopes are available with recycled paper and environmentally friendly materials, helping reduce environmental impact while maintaining performance. Some designs use recyclable films or biodegradable materials for the window panel.

For more advice on reducing waste and improving sustainability in your workplace, read our guide to eco-friendly office supplies for a sustainable workplace.

Why choose window envelopes from The Green Office?

• Transparent window for easy address display
• Ideal for invoices, statements and business letters
• Available in DL, C4, C5 and other sizes
• Compatible with high-volume mailing systems
• Eco-friendly options available

Browse our full range of window envelopes and find efficient, eco-friendly solutions for professional business mailing.