Envelopes from Twofold Ltd

Looking for a wide range of envelopes to suit almost any purpose?

We offer a wide selection of machine compatible, bespoke and self-seal envelopes in a range of sizes, window sizes and positions. You can take advantage of our FREE storage for up to 12 months, allowing you to make savings on larger orders and schedule call off when you need them through the year. We deliver almost everywhere in the UK and in most cases can deliver next day if ordered before 1.30pm.

Sending confidential documents?

Twofold can supply you with envelopes that feature a unique “Checksecure” opaque, which is specifically designed for the protection of confidential or sensitive documents. Combined with the dark security opaque, the checksure text pattern prevents envelope scanning by powerful light sources such as halogen bulbs, and cannot be scanned using solvent applications such as “Scan Mail” spray. All that will be revealed is the security opaque, where a standard blue opaque will reveal the contents of the envelope.

Our range of consumables is designed to enhance our machines, ensuring maximum product performance and longevity.

Benefits of choosing Twofold for your envelopes:


Next day delivery

Call before 1.30pm for guaranteed next day delivery to anywhere in the UK.

Free storage for 12 months

allowing you to take advantage of bulk discounts.

Competitive prices

We’re always checking costs to give you the best possible price.

Machine compatibility

for trouble free processing, and to prevent time wasted through jammed envelopes.

Efficient and professional service

Our team are ready to answer your calls or emails to get you the envelopes you need.

For the best envelope prices, storage, and next day delivery, call on

0118 951 9800

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What is CheckSecure™?

Twofold has developed the CheckSecure™ envelope to have a unique design for the protection of financial and sensitive documents. The only way to see the documents enclosed is to open the envelope and remove them. Both you and your customers will benefit from the security of this opaque printing, and you can send out your post with confidence. Your customers will appreciate that you have put their confidentiality first when sending communications in the post. All of our CheckSecure™ envelopes are fully compatible with Twofold mailroom equipment to reduce downtime and let you run your business without costly delays.

Want to find out more? Get in touch.

Storage and distribution

Twofold offers a free storage facility for up to 12 months. Storing envelopes with us ensures that customers benefit from the low prices when ordering in bulk without having to worry about the storage space. All stocked envelopes are delivered on a next day service. To guarantee next day delivery please call before 1.30pm.


Each time you require your envelopes, you simply ‘call off’ the required amount from your existing stock. You can contact us either online via our ‘call off’ request form, or via email, phone or fax. Simply let us know the required envelope code and amount and we’ll deliver your envelopes to you the next working day.

Alternatively, you can set up a ‘call off’ arrangement where we will ship your goods on a set date each week or month, whichever you prefer.

Our experienced envelope team will keep you updated on your stock levels and contact you when stocks are running low.

Overprinting Service

Whether it is a simple logo, indicia or an intricate design of many colours, overprinted envelopes provide a professional look and can create striking designs that create that all important “wow” factor.You’ll improve open rates and it’s an added opportunity for marketing by displaying your business before them mail has even been opened.


Using a Printed Postage Impression (PPI) on your envelopes will enable your organisation to send out large volumes of mail quickly and efficiently without the laborious task of having to stamp each individual item.

By enhancing the presentation of your mail you’ll be able to promote a professional image for your organisation.

Our envelope team is highly experienced and dedicated to giving you the best advice and products. We understand our customers’ requirements and ensure that every client receives an efficient and professional service.

All overprint orders produce a design proof for approval and nothing will go to print until the order is signed off by you, ensuring prompt delivery and peace of mind.

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Case study

Departments all saving time and money using a single document capture platform


This particular council situated in the south east region is one of the largest employers in England with an annual budget of £800 million.


Like many authorities this council was ‘running on paper’. Receiving over a million documents a year by paper or email they needed to be keyed into core council systems then the document stored in the enterprise wide EDRMS.

Read more

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