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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 19 products
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Q-Connect Self Seal DL Windowed Envelope 80gsm - White (250 Pack) KF07557

Q Connect Self Seal DL Windowed Envelope 80gsm White 250 Pack KF07557 610339 F
250
Pack
  • Q-Connect DL Window Envelopes - 250 pack for office or home use.
  • Clear window for easy address visibility.
  • Self-seal closure - no licking needed!
  • Suitable for A4 (folded twice) & A5 (folded once) sheets.
£8.76
£7.30 ex. VAT
£7.30
£8.76 inc. VAT
£8.76
£7.30 ex. VAT
£7.30
£8.76 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Self Seal C4 Windowed Envelope 90gsm - White (250 Pack) KF3501

Q Connect Self Seal C4 Windowed Envelope 90gsm White 250 Pack KF3501 113881 F
250
Pack
  • Suitable for A4 documents
  • Self-seal closure for easy and secure mailing
  • Contains 250 envelopes per pack
  • Crafted from 90gsm white paper
£21.31
£17.76 ex. VAT
£17.76
£21.31 inc. VAT
£21.31
£17.76 ex. VAT
£17.76
£21.31 inc. VAT

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Order now for dispatch tomorrow

Self Seal C4 Windowed Envelope 90gsm - White (250 Pack) WX3501

Self Seal C4 Windowed Envelope 90gsm White 250 Pack WX3501 187888 F
250
Pack
  • C4 Size: Ideal for A4 documents.
  • 90gsm Paper: Offers a professional finish.
  • Self-Seal Closure: Ensures secure and efficient mailing.
  • Clear Window: 40 x 105mm for easy address visibility.
£21.50
£17.92 ex. VAT
£17.92
£21.50 inc. VAT
£21.50
£17.92 ex. VAT
£17.92
£21.50 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Self Seal C4 Windowed Envelope 90gsm - Manilla (250 Pack) C490250MW

Self Seal C4 Windowed Envelope 90gsm Manilla 250 Pack C490250MW 809032 F
250
Pack
  • Quantity: 250 high-quality envelopes per pack
  • Size: C4 (324x229mm) - fits standard A4 documents
  • Closure: Convenient self-seal adhesive flap – no licking needed
  • Paper Weight: Durable 90gsm paper
£15.86
£13.22 ex. VAT
£13.22
£15.86 inc. VAT
£15.86
£13.22 ex. VAT
£13.22
£15.86 inc. VAT

Order now for dispatch tomorrow

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 Self Seal C4 Windowed Envelope 100gsm - White (250 Pack) KF3535

Q Connect Self Seal C4 Windowed Envelope 100gsm White 250 Pack KF3535 113355 F
250
Pack
  • Size: C4
  • Paper Weight: 100gsm
  • Features: Clear address window (40 x 105mm)
  • Closure: Self-seal adhesive flap
£22.18
£18.48 ex. VAT
£18.48
£22.18 inc. VAT
£22.18
£18.48 ex. VAT
£18.48
£22.18 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

5 Star Value Self Seal C4 Windowed Pocket Envelope 90gsm - White (250 Pack) 638566

5 Star Value Self Seal C4 Windowed Pocket Envelope 90gsm White 250 Pack 638566 889017 F
250
Pack
  • Size: C4 (324x229mm)
  • Pack of 250 white envelopes
  • Features a convenient window for clear addressing
  • Secure press seal closure for easy use
£22.14
£18.45 ex. VAT
£18.45
£22.14 inc. VAT
£22.14
£18.45 ex. VAT
£18.45
£22.14 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

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Q-Connect Self Seal C4 Windowed Basketweave Pocket Envelope 115gsm - Manilla (250 Pack) KF3534

Q Connect Self Seal C4 Windowed Basketweave Pocket Envelope 115gsm Manilla 250 Pack KF3534 137017 F
250
Pack
  • Pack of 250: Ideal for frequent mailing needs
  • C4 Size and 115gsm Paper: Suitable for A4 documents with a professional finish
  • Self-Seal Closure: Quick, secure, and eliminates the need for licking
  • Clear Window (40x105mm): Enhances address visibility for streamlined mailing
£22.05
£18.37 ex. VAT
£18.37
£22.05 inc. VAT
£22.05
£18.37 ex. VAT
£18.37
£22.05 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

5 Star Value Self Seal C4 Windowed Pocket Envelope 100gsm - White (250 Pack) 553274

5 Star Value Self Seal C4 Windowed Pocket Envelope 100gsm White 250 Pack 553274 889020 F
250
Pack
  • C4 Size: 324x229mm
  • Paper Weight: 100gsm for reliable performance
  • Press Seal Closure: No licking needed for a secure bond
  • Pack of 250: High-quality white window envelopes
£21.53
£17.94 ex. VAT
£17.94
£21.53 inc. VAT
£21.53
£17.94 ex. VAT
£17.94
£21.53 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

Q-Connect Self Seal C4 Windowed Pocket Envelope 90gsm - Manilla (250 Pack) 9017501

Q Connect Self Seal C4 Windowed Pocket Envelope 90gsm Manilla 250 Pack 9017501 461802 F
250
Pack
  • Size: C4 (324 x 229mm) - Ideal for A4 documents
  • Secure and Convenient: Self-seal adhesive flap for easy closure
  • Durable Quality: Crafted from 90gsm paper for reliable protection
  • Pack of 250: Manilla envelopes, perfect for business or home use
£17.91
£14.92 ex. VAT
£14.92
£17.91 inc. VAT
£17.91
£14.92 ex. VAT
£14.92
£17.91 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

Evolve Recycled Self Seal C4 Windowed Pocket Envelope 100gsm - White (250 Pack) RD7892

Evolve Recycled Self Seal C4 Windowed Pocket Envelope 100gsm White 250 Pack RD7892 157122 F
250
Pack
  • Eco-Friendly: Made from 100% recycled 100gsm paper.
  • Size & Format: C4 envelopes designed for A4 documents.
  • Convenient Closure: Features a self-seal closure – no licking needed.
  • Pack Size: Includes 250 envelopes per pack.
£37.58
£31.32 ex. VAT
£31.32
£37.58 inc. VAT
£37.58
£31.32 ex. VAT
£31.32
£37.58 inc. VAT

Order now for dispatch tomorrow

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 Self Seal C4 Windowed Pocket Envelope 120gsm - White (250 Pack) H27070

Plus Fabric Self Seal C4 Windowed Pocket Envelope 120gsm White 250 Pack H27070 127526 F
250
Pack
  • Size: C4, ideal for A4 documents
  • Material: Durable 120gsm paper construction
  • Closure: Convenient self-seal design
  • Pack: Includes 250 white envelopes
£147.43
£122.86 ex. VAT
£122.86
£147.43 inc. VAT
£147.43
£122.86 ex. VAT
£122.86
£147.43 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

New Guardian Self Seal C4 Windowed Envelope 130gsm - Manilla (250 Pack) M27503

New Guardian Self Seal C4 Windowed Envelope 130gsm Manilla 250 Pack M27503 125027 F
250
Pack
  • Pack Size: 250 manilla envelopes
  • Paper Weight: Durable 130gsm paper
  • Envelope Size: C4, fits unfolded A4 documents
  • Closure Type: Self-seal with 40x100mm address window
£57.89
£48.24 ex. VAT
£48.24
£57.89 inc. VAT
£57.89
£48.24 ex. VAT
£48.24
£57.89 inc. VAT

Order now for dispatch tomorrow

Order now for dispatch tomorrow

Self Seal C4 Windowed Envelope 90gsm - White (250 Pack)

Self Seal C4 Windowed Envelope 90gsm White 250 Pack 755370 F
250
Pack
  • C4 Size & 250 Envelopes: Ideal for standard correspondence.
  • 90gsm White Paper: Provides a professional and quality feel.
  • Window & Self-Seal: For easy addressing and secure closure.
  • UK Made & Sustainable: Ethically sourced paper from renewable forests.
This item is out of stock

Self Seal C4 Windowed Envelope 90gsm - White (250 Pack)

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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.