Envelope inserting and enclosing, matched and personalised in one pass.
Not every mailing needs a polywrap. A single letter, an invoice, a renewal notice or a personalised offer usually belongs in an envelope, and doing that by hand at any real volume is slow and error-prone. Our inserting lines fold, personalise, collate and seal each pack automatically, so a batch of a thousand or a hundred thousand goes out with the right documents in the right envelope, every time.
What envelope inserting actually involves
Our multi-station inserting lines at Dublin 3 take flat or folded sheets, feed them past a series of stations, and build up a complete pack before it's sealed into an envelope. We run everything from a compact DL envelope for a single folded letter up to a C4 for larger documents or multi-page statements, and the machines fold to the right specification automatically rather than relying on pre-folded stock.
Because it's a machine process rather than a manual one, run length isn't really a constraint. A short batch of renewal letters and a full statement run of tens of thousands both move through the same line, at the same accuracy, without anyone standing at a table folding and stuffing envelopes by hand.
Personalisation and matching multiple inserts
The real advantage of a multi-station line is that it doesn't just enclose one document. It can pick up a personalised carrier sheet from our laser printers, add a reply device, and add a separate leaflet or brochure, and match all three to the same recipient automatically, in one pass. There's no manual collating step where someone has to check that the right reply envelope ended up with the right letter.
That matters most for anything with a name, account number or personal offer printed on the main sheet. Because the carrier is laser-personalised before it reaches the inserter, the machine can verify that the matched insert lines up with the address on the envelope, which is the kind of check that's slow and unreliable if it's being done by eye.
When to choose this over polywrapping
Envelope inserting is the right format for single sheets, simple letters, invoices, statements and personal correspondence, anything where the contents need to stay enclosed and the mailing is built around one main document rather than a magazine or catalogue with some bulk to it. For that kind of run, our polywrapping and magazine mailing service is usually the better and cheaper option, since it's built for higher volumes of flat, bulkier items rather than folded letter packs.
If you're not sure which format suits a particular job, tell us what you're sending and we'll recommend the format that keeps cost and turnaround sensible for that specific mailing.
Turnaround and how it fits with the rest of a job
Inserting is rarely the whole job on its own. It usually sits between the data and the postage. We start from clean, validated address data so the right name and address end up on the right pack, and once everything is folded, matched and sealed, it goes straight into our An Post sortation process to qualify for the best available postage rate, rather than being handed off to a separate supplier partway through.
For quotes on inserting jobs, tell us your envelope size, the number of items you're matching per pack and your volume, and we'll come back with a price and running plan, usually the same working day.
Next step
Got a letter or statement run to get moving?
Send us your envelope size, the documents you need matched, and your volume, and we'll come back with a price and running plan, usually the same working day.
Frequently asked questions
Our lines run everything from a DL envelope for a single folded letter up to a C4 for larger documents or multi-page statements. Tell us your format and we'll confirm it's a straightforward run before you commit to it.
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Ready to get a price on this job?
Tell us what you're mailing and we'll come back with a quote, usually the same working day.