✓ Royal Mail Authorised Inspector since 2008 | Trading since 2005
Business Envelopes
High quality business envelopes for all business needs
At Mailcoms, we offer a comprehensive selection of business envelopes designed to meet your professional mailing needs. Whether you’re sending important documents, invoices or small items, our envelopes ensure your post arrives securely and in style.
What are business envelopes?
Business envelopes are envelopes businesses use to send items such as printed documents in the post. DL, C5 and C4 envelopes are commonly used for mailing campaigns, official correspondence and important documents.
Other types – such as cardboard envelopes and padded (bubble-lined) envelopes – are ideal for sending more delicate items.
What type of envelope should you use in business?
It depends entirely on what you’re sending. The most widely used are plain DL, C5 or C4 envelopes for general correspondence, invoices and statements, available with or without a window. For DVDs, jewellery, certificates or anything similar, sturdier options like cardboard, pillow and bubble envelopes are more suitable, efficient and cost-effective.
Why choose Mailcoms business envelopes?
First impressions matter. We supply high-quality business envelopes built for professional use – combining durability, security and a polished look so your correspondence always stands out.
Durability & security
Crafted from robust, high-quality materials that handle postal processing while keeping your contents safe and intact.
Professional impression
A sleek, polished design that enhances your professional image and makes the right impression with every delivery.
Variety of sizes & styles
A wide choice of sizes including DL, C5 and C4, with paper and cardboard options to suit different mailing needs.
Free UK delivery
Fast, free UK delivery on orders over £100.
Types of business envelopes available
We stock a range of business envelopes to fit any business and anything that needs sending. Browse the full range below – each links through to buy.
Gummed folding inserting machine envelopes
Regular business envelopes that work with franking and folding-inserting machines for consistent, reliable results. Ideal for letters, invoices and statements, sealed with water. Available in DL and C5, windowed or non-windowed – DL in boxes of 1000, C5 in boxes of 500.
Self seal envelopes
Close and stick without water, with a manual self seal. Ideal for letters, invoices and statements. Available in DL, C5 and C4, windowed or non-windowed – DL in boxes of 1000, C5 in boxes of 500 and C4 in boxes of 250.
Pillow envelopes
A more unique, luxury style (also called a pillow box). Ideal for small or light items such as gifts, chocolates and promotional items, and quick to assemble. Available in DL, C6 and C5 in brown.
Cardboard envelopes
Capacity book mailers built to Royal Mail PiP sizes for extra protection. Ideal for books, magazines, DVDs and thick brochures, with an easy peel-and-seal strip. Available in standard solid board or premium corrugated, in multiple sizes.
Bubble lined padded envelopes
Bubble-lined jiffy bags with internal cushioning, compliant with Royal Mail PiP sizes. Ideal for a wide range of items, with a peel-and-seal strip. Available in white and gold and many sizes, including AirPro and unbranded options.
Franking logo postage envelopes
Missing or struggling to print your franking logo after recent Royal Mail updates? Our custom-printed franking logo envelopes print your logo in full colour alongside your franking impression.
Not sure which envelope you need?
Our UK-based team can help you choose the right envelope for what you’re sending. Call us Monday to Friday, 9am-5pm.