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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 24 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

Blake Purely Everyday Peel and Seal DL Windowed Envelope 100gsm - White (50 Pack) 23884/50PR

Blake Purely Everyday Peel and Seal DL Windowed Envelope 100gsm White 50 Pack 23884 50PR 434292 F
50
Pack
  • Size: Dl
  • Quantity: 50 Envelopes per Pack
  • Closure: Convenient Peel & Seal
  • Features: Includes a window for clear address visibility
£3.84
£3.20 ex. VAT
£3.20
£3.84 inc. VAT
£3.84
£3.20 ex. VAT
£3.20
£3.84 inc. VAT

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Order now for dispatch tomorrow

Q-Connect Peel and Seal C4 Windowed Envelope 120gsm 25mm Gusset - White (125 Pack) KF02891

Q Connect Peel and Seal C4 Windowed Envelope 120gsm 25mm Gusset White 125 Pack KF02891 181459 F
125
Pack
  • Suitable for A4 documents
  • 120gsm heavyweight paper for durability
  • 25mm expanding gusset accommodates bulky mail
  • Secure peel and seal closure
£33.96
£28.30 ex. VAT
£28.30
£33.96 inc. VAT
£33.96
£28.30 ex. VAT
£28.30
£33.96 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

5 Star Office Peel and Seal C4 Windowed Envelope 90gsm - White (10 Pack) FS600450

5 Star Office Peel and Seal C4 Windowed Envelope 90gsm White 10 Pack FS600450 912083 F
10
Pack
  • Pack Size: 10 high-quality C4 envelopes
  • Paper Weight: 90gsm white paper
  • Closure Type: Convenient peel and seal
  • Dimensions: 324 x 229mm (C4 size)
£3.01
£2.51 ex. VAT
£2.51
£3.01 inc. VAT
£3.01
£2.51 ex. VAT
£2.51
£3.01 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

5 Star Office Peel and Seal C4 Windowed Envelope 120gsm 25mm Gusset - White (125 Pack) 930183

5 Star Office Peel and Seal C4 Windowed Envelope 120gsm 25mm Gusset White 125 Pack 930183 284129 F
125
Pack
  • Professional Quality: Crafted from 120gsm paper for a polished finish.
  • Secure & Convenient: Features a peel and seal closure – no moisture needed.
  • Accommodates Bulkier Items: 25mm V-base gusset expands for catalogues, certificates & reports.
  • C4 Size & Pack of 125: Dimensions 324x229x25mm, with a pack containing 125 envelopes.
£28.07
£23.39 ex. VAT
£23.39
£28.07 inc. VAT
£28.07
£23.39 ex. VAT
£23.39
£28.07 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

5 Star Office Peel and Seal C5 Windowed Pocket Envelope 80gsm - White (25 Pack) FS600407

5 Star Office Peel and Seal C5 Windowed Pocket Envelope 80gsm White 25 Pack FS600407 912085 F
25
Pack
  • Pack Size: 25 high-quality white envelopes
  • Closure Type: Convenient peel and seal – no licking needed!
  • Window Size: 45 x 90mm for clear address visibility
  • Paper Size Compatibility: Fits A4 (folded) or A5 (unfolded) sheets
£2.47
£2.06 ex. VAT
£2.06
£2.47 inc. VAT
(1)
£2.47
£2.06 ex. VAT
£2.06
£2.47 inc. VAT
(1)

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Order now for dispatch tomorrow

Q-Connect Peel and Seal C4 Windowed Envelope 100gsm - White (250 Pack) KF03292

Q Connect Peel and Seal C4 Windowed Envelope 100gsm White 250 Pack KF03292 280221 F
250
Pack
  • Size: C4 (324 x 229mm) - Fits standard A4 documents.
  • Paper Weight: 100gsm - Offers a professional finish.
  • Closure: Peel and Seal - Ensures a secure closure.
  • Pack Quantity: 250 - Ideal for everyday mailing needs.
£21.15
£17.62 ex. VAT
£17.62
£21.15 inc. VAT
£21.15
£17.62 ex. VAT
£17.62
£21.15 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 Office Peel and Seal C4 Windowed Pocket Envelope 90gsm - White (250 Pack) H90027

5 Star Office Peel and Seal C4 Windowed Pocket Envelope 90gsm White 250 Pack H90027 161334 F
250
Pack
  • Pack Size: 250 C4 (324x229mm) envelopes
  • Self-Seal & Secure: Features a self-seal closure and blue opaque interior for privacy.
  • Paper Quality: Made from 90gsm paper – lightweight but durable.
  • Professional Finish: Ideal for businesses and home offices with a window patch for addresses.
£22.14
£18.45 ex. VAT
£18.45
£22.14 inc. VAT
£22.14
£18.45 ex. VAT
£18.45
£22.14 inc. VAT

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Order now for dispatch tomorrow

Plus Fabric Peel and Seal C4 Windowed Envelope 120gsm 25mm Gusset - White (100 Pack) C27566

Plus Fabric Peel and Seal C4 Windowed Envelope 120gsm 25mm Gusset White 100 Pack C27566 139221 F
100
Pack
  • Suitable for A4 documents with a 25mm expanding gusset.
  • Made from durable 120gsm bright white paper.
  • Features a convenient 45 x 100mm address window.
  • Pack of 100 C4 envelopes with a peel and seal closure.
£85.29
£71.07 ex. VAT
£71.07
£85.29 inc. VAT
£85.29
£71.07 ex. VAT
£71.07
£85.29 inc. VAT

Order now for dispatch tomorrow

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

Blake Purely Everyday Peel and Seal C5 Windowed Envelope 100gsm - White (100 Pack) 23084/100PR

Blake Purely Everyday Peel and Seal C5 Windowed Envelope 100gsm White 100 Pack 23084 100PR 752567 F
100
Pack
  • Pack Size: 100 C5 envelopes
  • Convenient Closure: Features a reliable peel and seal
  • Clear Addressing: Includes a window for address visibility
  • Paper Weight: Made with 100gsm paper
£9.57
£7.97 ex. VAT
£7.97
£9.57 inc. VAT
£9.57
£7.97 ex. VAT
£7.97
£9.57 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

5 Star Office Peel and Seal C4 Windowed Pocket Envelope 100gsm - White (250 Pack) 906640

5 Star Office Peel and Seal C4 Windowed Pocket Envelope 100gsm White 250 Pack 906640 139577 F
250
Pack
  • Size C4 (324x229mm) - ideal for standard documents.
  • Pack of 250 envelopes for ample supply.
  • Peel & seal closure for quick and secure mailing.
  • Blue opaque interior provides added confidentiality.
£28.07
£23.39 ex. VAT
£23.39
£28.07 inc. VAT
£28.07
£23.39 ex. VAT
£23.39
£28.07 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Plus Fabric Peel and Seal C4 Windowed Pocket Envelope 120gsm - White (250 Pack) L23970

Plus Fabric Peel and Seal C4 Windowed Pocket Envelope 120gsm White 250 Pack L23970 144938 F
250
Pack
  • Size: C4, designed for A4 documents
  • Paper Weight: Durable 120gsm paper stock
  • Closure: Secure peel and seal flap with tear strip
  • Pack Quantity: 250 envelopes per pack
£86.72
£72.27 ex. VAT
£72.27
£86.72 inc. VAT
£86.72
£72.27 ex. VAT
£72.27
£86.72 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Basildon Bond Peel and Seal C4 Windowed Pocket Envelope 120gsm - White (250 Pack) K80121

Basildon Bond Peel and Seal C4 Windowed Pocket Envelope 120gsm White 250 Pack K80121 126455 F
250
Pack

  • Pack of 250 C4 white envelopes for professional mailing.

  • Made from 120gsm 100% recycled paper – an eco-friendly choice.

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

  • Opaque green interior ensures confidentiality; fits unfolded A4 documents.

£57.49
£47.91 ex. VAT
£47.91
£57.49 inc. VAT
£57.49
£47.91 ex. VAT
£47.91
£57.49 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

New Guardian Peel and Seal C4 Windowed Envelope 130gsm - Manilla (250 Pack) F24203

New Guardian Peel and Seal C4 Windowed Envelope 130gsm Manilla 250 Pack F24203 123600 F
250
Pack
  • Size: C4 – fits unfolded A4 documents
  • Secure Closure: Features a reliable Power-Tac peel & seal
  • Heavyweight Paper: Made from strong 130gsm manilla paper
  • Convenient Features: Includes tear strip & 40x100mm address window
£67.16
£55.97 ex. VAT
£55.97
£67.16 inc. VAT
£67.16
£55.97 ex. VAT
£55.97
£67.16 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

Order now for dispatch tomorrow

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

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

5 Star Office Peel and Seal DL Windowed Envelope 80gsm - White (25 Pack) FS600388

5 Star Office Peel and Seal DL Windowed Envelope 80gsm White 25 Pack FS600388 912087 F
25
Pack
  • Pack of 25 high-quality white DL envelopes.
  • Peel and seal closure for easy and secure fastening.
  • Fits A4 sheets folded twice & A5 sheets folded once.
  • 80gsm paper with a clear 35x89mm address window.
£2.98
£2.48 ex. VAT
£2.48
£2.98 inc. VAT
£2.98
£2.48 ex. VAT
£2.48
£2.98 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

Order now for dispatch tomorrow

Order now for dispatch tomorrow

County Stationery Peel and Seal DL Windowed Envelope 80gsm - White (1000 Pack) C505

County Stationery Peel and Seal DL Windowed Envelope 80gsm White 1000 Pack C505 523187 F
1000
Pack
  • Size: DL - Ideal for standard letters and documents.
  • Quantity: 1000 envelopes per pack (20 packs of 50).
  • Convenient Closure: Features a quick and easy peel and seal closure.
  • Paper Weight: Made with 80gsm paper for a quality feel.
This item is out of stock

County Stationery Peel and Seal DL Windowed Envelope 80gsm - White (1000 Pack) C505

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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.