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Window Envelopes

Find a wide range of window envelopes at Cartridge People, including C4 and DL window envelopes.

Window Envelopes
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We found 28 products
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5 Star Office Peel and Seal DL Windowed Wallet Envelope 100gsm - White (500 Pack) 906608

5 Star Office Peel and Seal DL Windowed Wallet Envelope 100gsm White 500 Pack 906608 129739 F
500
Pack
  • Size: DL (220x110mm)
  • Convenient peel and seal closure
  • Pack of 500 durable, 100gsm envelopes
  • Blue opaque interior for added privacy
£17.49
£14.57 ex. VAT
£14.57
£17.49 inc. VAT
£17.49
£14.57 ex. VAT
£14.57
£17.49 inc. VAT

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Order now for dispatch tomorrow

Q-Connect Self Seal C5 Windowed Pocket Envelope 90gsm - White (500 Pack) 2820

Q Connect Self Seal C5 Windowed Pocket Envelope 90gsm White 500 Pack 2820 152998 F
500
Pack
  • Pack Size: 500 envelopes per pack
  • Paper Quality: Made from 90gsm white paper
  • Window Feature: Includes a 90 x 45mm window for address visibility
  • Self Seal Closure
  • Document Compatibility: Ideal for A4 (folded) or A5 (unfolded) documents
£19.83
£16.52 ex. VAT
£16.52
£19.83 inc. VAT
£19.83
£16.52 ex. VAT
£16.52
£19.83 inc. VAT

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Order now for dispatch tomorrow

Self Seal C5 Windowed Envelope 90gsm - White (500 Pack)

Self Seal C5 Windowed Envelope 90gsm White 500 Pack 755368 F
500
Pack
  • Pack of 500: Ideal for both business and personal mailing needs.
  • C5 Size & 90gsm: Standard C5 envelope size with a quality 90gsm paper weight.
  • Self-Seal & Window: Features a convenient self-seal closure and clear window.
  • UK Made & Sustainable: Ethically sourced, renewable paper manufactured in the UK.
£18.86
£15.72 ex. VAT
£15.72
£18.86 inc. VAT
£18.86
£15.72 ex. VAT
£15.72
£18.86 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Self Seal C5 Windowed Pocket Envelope 90gsm - White (500 Pack) 9000020

Q Connect Self Seal C5 Windowed Pocket Envelope 90gsm White 500 Pack 9000020 461801 F
500
Pack
  • Size C5 (229 x 162mm) - Fits A5 & folded A4
  • 500 Pack - Ideal for business & home use
  • 90gsm Paper Weight - Durable & reliable
  • Self-Seal & Window - Convenient & professional
£19.32
£16.10 ex. VAT
£16.10
£19.32 inc. VAT
£19.32
£16.10 ex. VAT
£16.10
£19.32 inc. VAT

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Order now for dispatch tomorrow

5 Star Value Self Seal C5 Windowed Pocket Envelope 90gsm - White (500 Pack) 652516

5 Star Value Self Seal C5 Windowed Pocket Envelope 90gsm White 500 Pack 652516 889018 F
500
Pack
  • Size: 229x162mm C5 envelopes – ideal for standard letters
  • Paper Weight: Crafted from durable 90gsm paper
  • Convenient Seal: Features a quick and easy Pocket Press Seal
  • Large Pack: Includes a generous 500 envelopes per pack
£21.78
£18.15 ex. VAT
£18.15
£21.78 inc. VAT
£21.78
£18.15 ex. VAT
£18.15
£21.78 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Self Seal C5 Windowed Pocket Envelope 100gsm - White (500 Pack) 9007500

Q Connect Self Seal C5 Windowed Pocket Envelope 100gsm White 500 Pack 9007500 461804 F
500
Pack
  • Size: C5 (229 x 162mm) - Ideal for A5 & folded A4 documents.
  • Self-Seal Closure: Eliminates the need for moistening.
  • Clear Window: Allows easy content identification.
  • Pack of 500: Perfect for business or home use.
£21.09
£17.57 ex. VAT
£17.57
£21.09 inc. VAT
£21.09
£17.57 ex. VAT
£17.57
£21.09 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Peel and Seal C5 Windowed Pocket Envelope 100gsm - White (500 Pack) KF03290

Q Connect Peel and Seal C5 Windowed Pocket Envelope 100gsm White 500 Pack KF03290 280223 F
500
Pack
  • Pack of 500: Ideal for bulk mailing needs
  • C5 Size with Window: Fits A4/A5 documents and features a 45x90mm window
  • 100gsm Paper: Offers a professional and quality feel
  • Peel and Seal Closure: Ensures secure and tidy mailing
£21.45
£17.87 ex. VAT
£17.87
£21.45 inc. VAT
£21.45
£17.87 ex. VAT
£17.87
£21.45 inc. VAT

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Order now for dispatch tomorrow

Q-Connect Gummed C5 Windowed Machine Envelope 90gsm - White (500 Pack) KF02898

Q Connect Gummed C5 Windowed Machine Envelope 90gsm White 500 Pack KF02898 106366 F
500
Pack
  • Suitable for mailing machines
  • Dimensions: 162 x 238mm (Oversized C5)
  • 500 envelopes per pack
  • Durable 90gsm paper
£21.06
£17.55 ex. VAT
£17.55
£21.06 inc. VAT
£21.06
£17.55 ex. VAT
£17.55
£21.06 inc. VAT

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Order now for dispatch tomorrow

Plus Fabric Self Seal C5 Windowed Envelope 120gsm - White (500 Pack) C26870

Plus Fabric Self Seal C5 Windowed Envelope 120gsm White 500 Pack C26870 103524 F
500
Pack
  • Pack of 500: Contains 500 white C5 envelopes.
  • Durable Paper: Made from 120gsm paper for document protection.
  • Self-Seal Closure: Features a convenient, no-lick self-seal.
  • C5 Size with Window: Fits A5 or folded A4 documents; includes a 100x40mm address window.
£79.23
£66.02 ex. VAT
£66.02
£79.23 inc. VAT
£79.23
£66.02 ex. VAT
£66.02
£79.23 inc. VAT

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Order now for dispatch tomorrow

Self Seal C5 Windowed Box Envelope 90gsm - White (500 Pack) WX3406

Self Seal C5 Windowed Box Envelope 90gsm White 500 Pack WX3406 369642 F
500
Pack
  • C5 Size & 500 Pack: Standard C5 envelopes, supplied in a convenient boxed pack of 500.
  • 90gsm Quality Paper: Made from substantial 90gsm paper for a reliable and professional feel.
  • Self-Seal Closure: Features a convenient self-seal closure, eliminating the need for glue or tape.
  • 90x45mm Window: Includes a clear 90 x 45mm window for easy address visibility.
£19.40
£16.17 ex. VAT
£16.17
£19.40 inc. VAT
£19.40
£16.17 ex. VAT
£16.17
£19.40 inc. VAT

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Order now for dispatch tomorrow

5 Star Office Envelopes Pocket Self Seal Window 90gsm C5 White (500 Pack) 940411

5 Star Office Envelopes Pocket Self Seal Window 90gsm C5 White 500 Pack 940411 477453 F
500
Pack
  • Size: C5 (229x162mm) - ideal for daily mailing.
  • Secure & Private: Blue opaque interior shields contents.
  • Convenient: Self-seal closure for quick use.
  • Professional Finish: 90gsm paper with clear address window.
£21.61
£18.01 ex. VAT
£18.01
£21.61 inc. VAT
£21.61
£18.01 ex. VAT
£18.01
£21.61 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Peel and Seal DL Windowed Wallet Envelope 100gsm - White (500 Pack) KF03000

Q Connect Peel and Seal DL Windowed Wallet Envelope 100gsm White 500 Pack KF03000 280225 F
500
Pack
  • Pack Size: 500 envelopes
  • Paper Weight: 100gsm for quality feel
  • Closure Type: Convenient peel and seal
  • Size: DL – ideal for A4/A5 sheets
£19.35
£16.12 ex. VAT
£16.12
£19.35 inc. VAT
£19.35
£16.12 ex. VAT
£16.12
£19.35 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

5 Star Value Self Seal C5 Windowed Pocket Envelope 100gsm - White (500 Pack) 553258

5 Star Value Self Seal C5 Windowed Pocket Envelope 100gsm White 500 Pack 553258 889030 F
500
Pack
  • Pack Size: 500 envelopes
  • Size: C5 (229 x 162mm)
  • Paper Weight: 100gsm
  • Closure Type: Press Seal
£23.58
£19.65 ex. VAT
£19.65
£23.58 inc. VAT
£23.58
£19.65 ex. VAT
£19.65
£23.58 inc. VAT

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Order now for dispatch tomorrow

5 Star Office Peel and Seal C5 Windowed Pocket Envelope 100gsm - White (500 Pack) 906624

5 Star Office Peel and Seal C5 Windowed Pocket Envelope 100gsm White 500 Pack 906624 116103 F
500
Pack
  • Size: C5 (229x162mm)
  • 500 envelopes per pack
  • 100gsm paper with blue opaque interior for privacy
  • Features a window for address visibility
£27.83
£23.19 ex. VAT
£23.19
£27.83 inc. VAT
£27.83
£23.19 ex. VAT
£23.19
£27.83 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Recycled Self Seal DL Windowed Envelope 100gsm - White (500 Pack) KF3505

Q Connect Recycled Self Seal DL Windowed Envelope 100gsm White 500 Pack KF3505 133660 F
500
Pack
  • Eco-Friendly: Made from 100% recycled 100gsm paper.
  • Convenient: Self-seal closure for easy use.
  • Size & Format: DL size, fits A4/A5 folded documents.
  • Pack Size: Contains 500 envelopes.
£18.94
£15.78 ex. VAT
£15.78
£18.94 inc. VAT
£18.94
£15.78 ex. VAT
£15.78
£18.94 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Gummed C5 Windowed Machine Envelope 80gsm - White (500 Pack) KF71434

Q Connect Gummed C5 Windowed Machine Envelope 80gsm White 500 Pack KF71434 100318 F
500
Pack
  • Size: 162 x 238mm (Oversized C5)
  • Contains 500 white envelopes per pack
  • Features a 45 x 90mm address window
  • Made from strong 80gsm paper with a gummed closure
£20.15
£16.79 ex. VAT
£16.79
£20.15 inc. VAT
£20.15
£16.79 ex. VAT
£16.79
£20.15 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Peel and Seal C5 Windowed Pocket Envelope 115gsm - Manilla (500 Pack) KF97370

Q Connect Peel and Seal C5 Windowed Pocket Envelope 115gsm Manilla 500 Pack KF97370 168857 F
500
Pack
  • Bulk Pack: Contains 500 manilla envelopes for extended use.
  • Peel & Seal Closure: Features a convenient, no-moisture closure.
  • Recycled Paper: Made from 85% recycled paper for an environmentally conscious choice.
  • A4/A5 Compatible: Suitable for A4 sheets folded or unfolded A5 sheets.
£22.33
£18.61 ex. VAT
£18.61
£22.33 inc. VAT
£22.33
£18.61 ex. VAT
£18.61
£22.33 inc. VAT

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Order now for dispatch tomorrow

Plus Fabric Self Seal DL Windowed Wallet Envelope 120gsm - White (500 Pack) C22570

Plus Fabric Self Seal DL Windowed Wallet Envelope 120gsm White 500 Pack C22570 127190 F
500
Pack
  • Pack of 500: Contains 500 white DL envelopes.
  • 120gsm Paper: Crafted from robust 120gsm paper for reliable mailing.
  • Self-Seal Closure: Features a convenient self-seal closure for secure contents.
  • Fits A5/A4: Comfortably fits A5 sheets folded once, or A4 sheets folded twice.
£57.48
£47.90 ex. VAT
£47.90
£57.48 inc. VAT
£57.48
£47.90 ex. VAT
£47.90
£57.48 inc. VAT

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Order now for dispatch tomorrow

5 Star Office Self Seal DL Windowed Wallet Envelope 90gsm - White (500 Pack) 907190

5 Star Office Self Seal DL Windowed Wallet Envelope 90gsm White 500 Pack 907190 117501 F
500
Pack
  • Size: DL (220x110mm) - ideal for standard letters
  • Self-Seal: Quick and convenient closure, saving time
  • Privacy Feature: Blue opaque interior for added confidentiality
  • Pack Contains: 500 durable, 90gsm envelopes
£21.06
£17.55 ex. VAT
£17.55
£21.06 inc. VAT
£21.06
£17.55 ex. VAT
£17.55
£21.06 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Plus Fabric Peel and Seal DL Windowed Wallet Envelope 120gsm - White (500 Pack) B22170

Plus Fabric Peel and Seal DL Windowed Wallet Envelope 120gsm White 500 Pack B22170 101672 F
500
Pack
  • Ideal for correspondence with a robust 120gsm paper construction
  • Features a 39 x 93mm address window for clear recipient details
  • Includes a tear strip for effortless opening
  • Perfectly sized for A5/A4 folded sheets, with a large 500 envelope pack
£65.31
£54.42 ex. VAT
£54.42
£65.31 inc. VAT
£65.31
£54.42 ex. VAT
£54.42
£65.31 inc. VAT

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Order now for dispatch tomorrow

Basildon Bond Peel and Seal C5 Windowed Pocket Envelope 120gsm - White (500 Pack) J80119

Basildon Bond Peel and Seal C5 Windowed Pocket Envelope 120gsm White 500 Pack J80119 114434 F
500
Pack

  • Pack of 500 white C5 pocket envelopes.

  • Made from 100% recycled 120gsm paper – eco-friendly!

  • Features a biodegradable address window & peel and seal closure.

  • Fits unfolded A5 sheets or folded A4 documents.

£60.26
£50.22 ex. VAT
£50.22
£60.26 inc. VAT
£60.26
£50.22 ex. VAT
£50.22
£60.26 inc. VAT

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Order now for dispatch tomorrow

Evolve Recycled Self Seal C5 Windowed Envelope 100gsm - White (500 Pack) RD7084

Evolve Recycled Self Seal C5 Windowed Envelope 100gsm White 500 Pack RD7084 221800 F
500
Pack
  • Eco-Friendly: Made from 100% recycled 100gsm paper.
  • Convenient: Features a self-seal closure and 45x90mm window.
  • Size: C5 envelopes, ideal for A4/A5 documents.
  • Quantity: Pack of 500 envelopes.
£41.55
£34.62 ex. VAT
£34.62
£41.55 inc. VAT
£41.55
£34.62 ex. VAT
£34.62
£41.55 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Basildon Bond Peel and Seal DL Windowed Wallet Envelope 120gsm - White (500 Pack) A80117

Basildon Bond Peel and Seal DL Windowed Wallet Envelope 120gsm White 500 Pack A80117 113356 F
500
Pack
  • Eco-Friendly: Made from 100% recycled 120gsm paper.
  • Convenient Closure: Features a peel & seal closure for secure mailing.
  • DL Size: Suitable for A5 or A4 sheets folded appropriately.
  • Pack of 500: Contains 500 white envelopes per pack.
£52.29
£43.57 ex. VAT
£43.57
£52.29 inc. VAT
£52.29
£43.57 ex. VAT
£43.57
£52.29 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Plus Fabric Peel and Seal C5 Windowed Envelope 120gsm - White (500 Pack) E24970

Plus Fabric Peel and Seal C5 Windowed Envelope 120gsm White 500 Pack E24970 113869 F
500
Pack
  • Pack of 500 white C5 envelopes for professional mailing.
  • Made from durable 120gsm paper with a peel and seal closure.
  • Fits A5 documents unfolded, or A4 folded once.
  • Includes clear address window & easy-open tear strip.
£87.30
£72.75 ex. VAT
£72.75
£87.30 inc. VAT
£87.30
£72.75 ex. VAT
£72.75
£87.30 inc. VAT

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Order now for dispatch tomorrow

5 Star Eco Recycled Self Seal C5 Windowed Pocket Envelope 90gsm - White (500 Pack) 940406

5 Star Eco Recycled Self Seal C5 Windowed Pocket Envelope 90gsm White 500 Pack 940406 477452 F
500
Pack
  • Eco-Friendly: Made from 100% recycled 90gsm paper.
  • C5 Size: Dimensions of 229 x 162mm.
  • Self-Seal & Window: Features a convenient self-seal closure and clear window.
  • Pack of 500: Includes 500 envelopes per pack.
£31.19
£25.99 ex. VAT
£25.99
£31.19 inc. VAT
£31.19
£25.99 ex. VAT
£25.99
£31.19 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Plus Fabric Self Seal C6 Windowed Wallet Envelope 120gsm - White (500 Pack) F22670

Plus Fabric Self Seal C6 Windowed Wallet Envelope 120gsm White 500 Pack F22670 117423 F
500
Pack
  • Secure Mailing: Self-seal closure and opaque blue interior for confidential documents.
  • Durable Quality: Crafted from 120gsm paper for reliable handling.
  • Convenient Features: Includes a 39 x 93mm address window for easy addressing.
  • Bulk Pack: Contains 500 C6 sized envelopes for ample supply.
£61.79
£51.49 ex. VAT
£51.49
£61.79 inc. VAT
£61.79
£51.49 ex. VAT
£51.49
£61.79 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Self Seal C5 Windowed Pocket Envelope 90gsm - White (500 Pack) KF02718

Q Connect Self Seal C5 Windowed Pocket Envelope 90gsm White 500 Pack KF02718 177003 F
500
Pack
  • Pack Size: 500 envelopes (20 packs of 25)
  • Paper Weight: 90gsm white envelopes
  • Closure Type: Self-Seal for convenience
  • Suitable For: A4 (folded) or A5 documents
£43.08
£35.90 ex. VAT
£35.90
£43.08 inc. VAT
£43.08
£35.90 ex. VAT
£35.90
£43.08 inc. VAT

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Order now for dispatch tomorrow

Self Seal C5 Windowed Envelope 90gsm - Manilla (500 Pack) C590500MW

Self Seal C5 Windowed Envelope 90gsm Manilla 500 Pack C590500MW 809034 F
500
Pack
  • Pack of 500: Contains a generous 500 high-quality manilla envelopes.
  • C5 Size: Specifically sized at 229x162mm to fit A5 documents.
  • Self-Seal Closure: Features a convenient self-seal adhesive flap for easy use.
  • 90gsm Paper Weight: Crafted from durable 90gsm manilla paper for reliable mailing.
£43.69
£36.41 ex. VAT
£36.41
£43.69 inc. VAT
£43.69
£36.41 ex. VAT
£36.41
£43.69 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Window Envelopes

Find the window envelopes for your business or personal needs with our extensive range. Including various sizes, from popular DL and C5 to C4 and C6, you’ll also find sealing options like gummed, self seal and peel & seal.

Choose from a range of paper weights, including 70gsm, 80gsm, 90gsm and 120gsm options and benefit from convenient pack sizes, from economical smaller packs up to larger packs.

Ideal for invoices, letters and important documents, our window envelopes offer a professional finish. We stock both white and manilla envelopes with windows. Browse our selection to find the right size, weight and sealing method for efficient and secure mailing.

Discover our full range of envelopes, for the secure sending of correspondence at home or work.