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Got what I ordered. Took a bit for delivery. But as the saying goes the best things are worth waiting for. Fantastic service..will use again definitely..
Keith Chandler,
20 minutes ago
Verified
My experience was excellent
My experience was excellent. Staff keep you updated and very supportive
Joan,
27 minutes ago
Verified
Helpful and Speedy
They were very helpful responding really promptly enabling me to get it all sorted and have my custom splashback the same day .
CAT_BVB,
44 minutes ago
Verified
Great value, easy to fit secondary double glazing
Great value, easy to fit secondary double glazing
Rob H,
2 hours ago
Verified
Competitive price
Competitive price, Good quality & well packed. One of the few companies offering a cut out hole for a sensible price
Andy,
2 hours ago
Verified
Very professional
Very professional, very quick and the final outcome was excellent. Wish I bought more things now
Jonathan Hewitt,
7 hours ago
Verified
Great service !
Site was really easy to use good price and all cut to the size i wanted and quick dispatch.
Mandy,
10 hours ago
Verified
Excellent product ✅
Excellent product ✅
Excellent service ✅
Excellent price ✅
What more do you want !!!
Philip Saunders,
11 hours ago
Verified
Easy to order very quick delivery…
Easy to order very quick delivery perfectly cut to size and exactly as expected. Perfect Many thanks.
Mr Graham Smith,
11 hours ago
Verified
Great service and the piece I ordered…
Great service and the piece I ordered was for a table in my canpervan in a black finish. Looks great! Amazing quality and good price.
Aaron Haywood,
11 hours ago
Verified
Fast and accurate
Fast and accurate
I have ordered a few times and am a satisfied customer
Nancy Walker,
12 hours ago
Verified
A good quality product and I would…
A good quality product and I would definitely buy again from cut my. I’d have given 5 stars but unfortunately a delay in the dispatch due to an issue at their end let me and my client down, meaning the job ran over deadline.
Colin,
12 hours ago
Verified
Easy website to navigate
Easy website to navigate, and very reasonably priced for quality of product. Happy to continue to order from them, which is now over 4 times.
Only negative is make sure you leave at least double there league time on delivery. There estimated times are always 3/5 days later, and the delivery company are always a day late from there delivery date.
Mr Tout ,
12 hours ago
Verified
Really good quality and perfectly cut…
Really good quality and perfectly cut to size. It is more expensive than your protector covers off Amazon etc, but it’s also much better
Ihor,
13 hours ago
Verified
Great service
Great service, measurements spot on & prompt delivery!!
Dean,
13 hours ago
Verified
Idiot-proof website ordering and swift…
Idiot-proof website ordering and swift delivery. Perfect!
David Schutte,
15 hours ago
Verified
Pretty great
Pretty great, never had any issue at all with the cuts. I've been able to make some pretty sturdy shelves and other things. Their support team is pretty great too, very responsive.
Say goodbye to inefficient cooling with our premium custom-cut acrylic window seal. We offer either a crystal-clear 4mm acrylic sheet or a 5mm opal acrylic sheet to create a perfect seal around your air conditioner hose, keeping hot air outside where it belongs. This precision-cut panel closes gaps around your open window, blocking hot air from entering while allowing your AC’s exhaust hose to vent outdoors.
Made from durable, crystal-clear acrylic, it maintains your view while delivering excellent insulation. Order your custom size to fit any window, complete with a custom cut-out hole to match the size of your AC drain hose.
Ideal for renters and homeowners alike, this reusable window seal is easy to install and remove seasonally. Prevent energy waste, keep your room cooler, and reduce your electricity bills with this effective AC window sealing solution.
How to Order Your AC Unit Window Seal
We offer two acrylic options for your AC unit window seal:
4mm Clear Acrylic – A transparent option that allows maximum light into your room while maintaining a clear view outside. 5mm Opal Acrylic – A privacy-friendly sheet that still lets natural light through but obscures the view for added discretion. Ideal if you want privacy without blocking daylight.
Measure Your Window
1. Measure the open window space (the gap you want to cover). 2. Add 40mm to both the width and the height to allow for the 20mm tape area around each edge.
Example: If your opening is 500mm × 600mm, you will enter 540mm × 640mm as your total size.
Select Cutout for AC Hose
Tick "Yes" to Cutout for AC Hose in the additional options.
Choose the correct shape for your AC hose ducting (Rectangle or Circle).
Enter your hose diameter in millimetres.
You can also adjust the cutout position to match your setup.
Add Hook and Loop Tape
Add the Hook and Loop Tape accessory to secure the sheet to your window frame. Each roll is 5 metres long - choose the quantity based on your total window perimeter.
Derek, one of our customers, used our 5mm opal acrylic sheet cut to size to make a custom air con unit window cover for his bedroom. The opal finish was perfect for blocking early morning sunlight while still letting in a soft glow. He fixed the acrylic to the window frame with tape for an easy, removable fit and added a low-cost sliding panel kit (bought elsewhere) to allow access to the window handle. This simple DIY project keeps cool air in, blocks unwanted light, and creates a modern, tidy appearance — showing just how versatile opal acrylic is for custom AC window seals.
Installation
Prepare the Window
Fully open the window you’ll use with your portable air conditioner.
Clean the frame thoroughly to remove dust, dirt, or moisture.
A clean surface ensures the acrylic panel sits flush and any tape or seals adhere well.
Check Your Panel
Verify the dimensions match your window opening.
Confirm the hose hole is the correct size for your exhaust.
Check that the hole is at a usable height for your AC unit.
Install the Panel
Attach the soft (loop) side of the tape to your window frame along the edges.
Stick the rough (hook) side to the edges of the acrylic panel.
Press the panel firmly into place so the tape bonds securely.
Provides easy, tool-free, removable installation—ideal for renters!
Connect the Exhaust Hose
Insert the AC exhaust hose through the pre-cut hole.
Ensure a snug fit.
Optional - Seal any small gaps with foam or tape for maximum efficiency.
Turn on your AC - all done!
Removal & Storage
To remove, simply detach the exhaust hose.
Gently pull the panel free, especially if using hook-and-loop tape.
Clean and dry before storing flat or upright to prevent scratches.
Frequently Asked Questions
Have a question? You can find answers to commonly asked questions about our products, delivery, returns, cancellations and more on our FAQs page
Alternatively, for help and assistance, you can use our Live Chat or reach out to us via email using the contact form on our Contact Us page.
The skirt type window seal that came with my air con unit, was sent flying out of the window along with my sanity!
So I looked for a better solution and found "Cut My". Great website, I did get a little confused when trying to work out where to have the hole cut but as you can see I think I nailed it. I can still partly lower my electric blind to help block the afternoon sun. Great service, and sanity restored.
Verified, Collected by Cut My
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Delivery Options
For 4mm Clear Acrylic Air Conditioner Window Seal
Sorry, we are unable to deliver to this address. To see our service areas, please read our delivery policy.
If you are going to be in the area and would like to proceed with the purchase for collection, please contact us on 01903 389024 or email [email protected].
Estimated Arrival
Estimated Cost
Collection Options
From BN5 9XR
Estimated Arrival
Estimated Cost
Arrival dates and shipping costs shown above are estimates. See exact dates and costs and select your preferred shipping option during checkout. For more details on delivery speeds, pricing, and location, please view our delivery policy.
