Free design mock-up · Free UK delivery · Buy online or get a quote
About Mailer Boxes Co

About Us

We make custom packaging and custom clothing for UK brands, from first idea to the box on the doorstep.

Packaging and apparel, made for growing brands

Mailer Boxes Co started with a simple idea: small and growing brands deserve the same quality packaging as the big names, without huge minimums or complicated ordering. Today we make custom printed mailer boxes, rigid boxes, cartons, bags and food packaging for online shops, subscription services, PR agencies and retailers across the UK.

As our customers grew, many asked if we could make the products inside the box too. That is why we launched custom apparel: T-shirts, hoodies, matching sets, outerwear, denim, caps and socks, made to order from 20 pieces per style and shipped in matching branded packaging.

How we work

  • Free design help. Every order includes artwork support and a free mock-up.
  • Made to order. Your size, your print, your fabric. Nothing comes off a generic shelf.
  • Clear pricing. Our product pages show bulk “From” prices, and your quote shows the exact cost.
  • Reliable delivery. Orders are delivered across the UK in 12–14 working days.

Our sister brands

Mailer Boxes Co is part of a group of packaging businesses that also includes KwickPackaging and Polo Packaging, serving customers in the UK and the USA.

Ready to start? Request a packaging quote or an apparel quote, or get in touch.

Custom printed packaging
Free design helpMock-ups and artwork support on every order.
Made to orderYour size, your print, your fabric.
UK deliveryTracked, in 12–14 working days.
Responsible materialsRecyclable board and kraft options.

Let’s make something together

Send your idea — we’ll reply within 24 hours with a mock-up and price.

Get a free quote