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Excellent fast service and well packaged. Cuts look magnificent!!
Mark Manson,
2 hours ago
Verified
Just done everything I asked.THX
Just done everything I asked.THX
Kevin Cuff,
4 hours ago
Verified
Easy ordering process, friendly customer service
I found CutMy through an Internet search as I was looking for a piece of wood to mount on my wall. The website was easy to use, letting me chose pre-drilled holes, rounded edges, and showed a visualisation.
Due to circumstances I was unable to collect the piece as originally planned. When I contacted customer services they were very helpful and sorted out delivery.
Very happy and will certainly use again.
Keith P.,
5 hours ago
Verified
Very happy with my purchase
Very happy with my purchase. It was easy to navigate the website, I needed 4 sheets of plywood, 2 of which I needed with corner cut outs. Items were well packed and arrived in perfect condition - they fit in to position fine and look great.
Elaine,
7 hours ago
Verified
The product was used to replace a…
The product was used to replace a damaged glass top to my garden table. The size was perfect, it looks good and delivery was excellent. Overall very happy that I have found Cut My.
Groves,
7 hours ago
Verified
Excellent website and service
Excellent website and service. I accidentally ordered incorrect tabletop once which unfortunately could not be repurposed but then I did get the right one and it was perfect. As a suggestion, I think cutmy can provide more value to their customers by selling related products. Like for example, I wish they sold wood screws along with the tabletop I ordered. This is a no-brainer and for someone who didn't do much DIY it was a hassle finding the right screw size for the tabletop. But overall, I would totally use their service again.
Eakan,
8 hours ago
Verified
Great price
Great price, accurately cut to size, well wrapped and delivered quickly. Variety of sizes and cut to size, perfect for my job.
Charlie,
8 hours ago
Verified
Great product
Easy to enter dimensions and choose material reasonable turnaround time and precise sizes will order again
Rory j McNeir,
8 hours ago
Verified
Immingham
Very simple process and speedy well packed delivery. Would use again
Trevor Briggs,
8 hours ago
Verified
Great, swift service!
Found this company online. Competitive price, good communications and a really swift process.
My table looks perfect again,
Thank you.
MarianF,
9 hours ago
Verified
At last I’ve discovered a company that…
At last I’ve discovered a company that will cut wood to my specifications at a price I can afford. I will be using them again in the near future. Thanks!
Dianne Fox,
9 hours ago
Verified
Great product and service.
The pieces arrived well packaged and in good time. They are accurate to spec and the finish is as expected. I would definitely recommend Cut My and will happily use them again for any future requirements.
Sharan,
14 hours ago
Verified
Very happy
Well packaged. Well delivered. Arrived quickly. Received exactly what I ordered.
Richard Lewis Dury,
1 day ago
Verified
Quick delivery
Quick delivery. Exact specifications met. Primed and ready to go.
FHW,
1 day ago
Verified
Order
Mistake with original order was quicky resolved and suitable replacement issued.
Mielnik Mark,
1 day ago
Verified
Product exactly as ordered
Product exactly as ordered, perfect fit for an extra shelf inside my kitchen cupboard
Amy Howard,
1 day ago
Perfect
Perfect. Cut perfectly. Packed perfectly. Delivered quickly without fault. Credit where its due. Perfect.
Vyv,
1 day ago
Verified
Great customer service
Great customer service. Fab products cut to size
Liz Taggart,
1 day ago
Verified
Good product
Good product, and service. But don’t expect an email reply… to any questions
Telephone is the only way to get attention
Steve Churcher,
1 day ago
Verified
Prompt service from order to reciept of…
Prompt service from order to reciept of product.
Product well finished and good quality
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.
