Branded Envelopes

Professional Mail That Gets Opened

In an age where inboxes are overflowing and digital ads compete for every second of attention, the humble envelope still holds power—especially when it’s branded. At PrintX – The Print Lab London, we transform plain mailers into professional brand assets with crisp printing, premium paper stocks, and sizes tailored to your needs.

Why branded envelopes matter

Instant recognition – recipients know exactly who the letter is from before opening.
Boost open rates – a professional, appealing design encourages curiosity.
Consistent branding – every communication, from invoices to invitations, matches your visual identity.
Professional trust – branded stationery signals reliability and attention to detail.

Sizes and formats we offer

DL (110 × 220 mm) – fits A4 folded into thirds; perfect for letters and invoices.
C5 (162 × 229 mm) – fits A5 or A4 folded once; ideal for brochures and marketing packs.
C4 (229 × 324 mm) – fits A4 flat; for certificates, contracts, and proposals.
Square envelopes – eye-catching for event invites or promotional mailers.

Printing options

Single-colour for minimalist, budget-friendly designs.
Full-colour CMYK for vibrant logos and artwork.
Pantone matching for strict brand colours.
One side or both sides printing.
Bleed printing for designs that extend to the edge (subject to envelope style).

Paper and finishes

Standard white wove (90–120 gsm) – great value for everyday correspondence.
Premium textured stocks – laid, linen, or hammered finishes for a luxury feel.
Recycled stocks – eco-friendly without sacrificing print quality.
Window or non-window styles available.
Finishes: matt, gloss, soft-touch laminate (on printed sheets before conversion).

Adhesive and flap styles

Gummed (lick and seal) – economical for bulk runs.
Self-seal – peel-and-seal strip for convenience.
Wallet or banker flap – choose based on your brand look.

Use cases

Corporate correspondence, invoices, contracts.
Direct mail campaigns and promotions.
Event invitations and save-the-dates.
Certificates, awards, and official documents.
Charity appeals and supporter packs.

Artwork guidelines

Keep key text/logos 10 mm from edges to avoid trimming issues. Supply files in CMYK, 300 dpi; vector formats preferred for sharp results. We provide free print-ready proofs before production.

How we keep costs low

Combine orders for multiple departments into a single print run.
Choose standard sizes to avoid custom die costs.
Print in bulk for lower unit pricing.

Turnaround

Standard: 4–6 working days from proof approval.
Express: 1–3 working days available on select styles.

How to order

Select your size, paper, style, and quantity.
Send your design or let our in-house team create one for you (free with every order).
Approve your proof, then we print, pack, and deliver.

From official documents to marketing mail, branded envelopes ensure your message arrives with the right first impression.