The 8 Best Self Seal Window Envelopes (2023 reviews)

Here, we present envelope that manages to win our hearts. It's the blue summit supplies bottom window and it's widely considered as one of all-around great envelope you can buy. This envelope works well for Quickbooks checks. It is perfectly fits quickbooks checks, or other computer printed checks. It fits in the windows as it should without it being cut off. The new box is only 10" long and has 4 pieces of cardboard separating the checks into groups of 8.5 x 11 and it will fit, but not folding in thirds. It is so nice to be able to flip the flaps over and have the envelope sealed.

The size is perfect for Quickbook checks, and even has a little bit of extra room. It works for QB pro plus it is easy to come open. It is perfectly and the flap closes securely.

Why We Like This:

A great low-cost alternative to qb envelopes
Perfect for quickbooks payroll and billing
Easy to use and easier to along and seal
Adhesive is clean and looks professional

Best For invoice: Aimoh super Secure Seal

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The aimoh super secure seal is satisfactory and appropriate and fits well with your daily usage. These envelopes are professional looking and simple to stuff and seal. It is perfect for quickbook generated checks. The adhesive is good, but it gets all over your fingers when removing the tabs. The self sticking strip bonds nice and secure.

The envelopes are sturdy and can handle the abuse of bulky letters and papers. The removable strip does not come off cleanly and some of the adhesive comes off with the strip, leaving gaps in the seal. It comes off with the strip, leaving gaps in the seal.

Why We Like This:

Sticky, gummy glue residue all over your hands
Works great for quickbooks statements and invoices
Seams good, windows good, seals good

Best For company: Aimoh Self Seal Window Envelope

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The aimoh self seal window envelope's superior materials makes sure that it ages well with use. Aimoh’s double window security tinted self seal check envelopes uses a premium adhesive peel and seal designed strip to create a strong, secure self-sealing seal. It is perfect fit for quickbooks business checks and no glue to lick on the flap. These fit snugly so that cheques don't move around while in transit but are still reasonable to stuff.

These envelopes are great for QB checks. It is manufactured from heavyweight extra white sturdy wove stock paper, combining a professional security tint pattern and smooth finish. There is plastic on the windows. These are secure and the adhesive holds well. It is ideal for business and home office use.

Why We Like This:

Thick envelopes and super great adhesive
Works great with deluxe triple business checks
Good brand reputation

Best For Business Check: HERKKA Self Seal Window Envelope

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The herkka self seal window envelope gives the top-tier envelope a run for their money by offering flagship specs at a much more affordable price. Instead of pealing off a strip to expose a sticky surface or licking a glue strip, these envelopes have a narrow flap that flips up to expose a sticky surface that matches up to the normal flap that all envelopes have. The seal is very good and the envelopes have a security design printed on the inner surface to protect the contents from prying eyes. They have the color pattern printed all on the inside to help hide sensitive information to help keep things private as well. The adhesive feels like it is slightly stronger than a " repositional " adhesive. The security is cool looking and functional. The windows are clear and align well with the checks printed from Quick Books. The flap adhesion holds tight when closed, but if you forget to put something in it, you can open it carefully if it's done very soon after closing.

Why We Like This:

Great window envelopes and no licking required
Make paying the bills much easier
Delivers what they promise

Best For Mailing Invoices: HERKKA super Secure Seal

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These are really solid envelopes, and a whole lot of them. They are great envelopes for the business world. It is designed with peel & seal closure—no moisture needed and a premium security tint to protect sensitive information and a super strong self-seal strip. It does not dry up over time and the adhesive stays for a long time. There is a divider for every 100 envelopes, making it easier to keep up with the quantity.

These self stick, security envelopes are perfect for QuickBooks invoices. It is much faster to peal the adhesive strip and stick the end. The envelope seals well but you can still open it (carefully) if you accidentally seal it.

Why We Like This:

Delivers what they promise
Good investment for long term

Best For bulk mailings: Columbian Self Seal Window Envelope

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Compared with other envelope in this category, the columbian self seal window envelope has a convenient design. These tinted envelopes have a reflex blue pattern that obscures the details of what's inside. They are just wide enough to fit a standard sized sheet of paper. It has a strip opening. The peel and stick on the back is great in both the apply and pull off. It has a scrambled blue pattern printed on the interior that conceals the contents.

The standard piece of printer paper is slightly bigger than these envelopes making it useless for anything else. They use the kind of adhesive that doesn't need to be wet. It is perfect for quickbooks checks.

Why We Like This:

Comes packaged well and no papercuts
Peel and stick back is a nice addition
Forms line up perfectly in the windows
Fits quickbooks checks and has pre-glued closure

Best For print: Blue Summit supplies Self Seal Window Envelope

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Next on the list, we've got yet another envelope that manages to win our hearts. It's the blue summit supplies self seal window envelope and it's widely considered as envelope that has the most suitable features. They tend to take a little more time than the other type to get the check inserted and sealed. They adhere well, they’re easy to fill and you save so much garbage by the lift to seal method. The envelope is 9.5 wide so the document can slide around. It is easy to use so you can send invoices and statements quickly with no wasted plastic strips from the peel and seal design. The security print is good and they are self sealing without a "pull strip" which is nice.

Why We Like This:

Perfect for mailing invoices, quickbooks invoices, billing statements, checks, and other business mail
Enough room for return envelopes so you can get paid faster
One of the new comers and featured product

Best For letter: Columbian Self Seal

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We would, of course, be remiss if we didn't mention columbian self seal for regular usage. The Columbian #8 5/8 Security Envelope is a great addition to any office. These business envelopes are made of 24 lb white wove paper with side seams for a professional appearance. The combination of sticking them together and the glues automatically sticking and sealing is overall very nice but it needs to be done in a better way, that is other than the way it is folded currently.

These are easy to seal envelopes. The transparent windows are very nice. A special redi-seal closure doesn’t require any moisture to seal. These are perfect value for your business if your invoice, billing, or other paper documents are like 8x10 inch in size.

Why We Like This: