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Double glazing cut to specified size and is now in place. Good communication, there was a brief, couple of days, delay in fulfilling the order, they were good enough email to let me know.
good quality product
Ch,
5 hours ago
Verified
Great prices,great service delivery…
Great prices,great service delivery wise etc
Really well packaged
👍
Stu Gordon ,
6 hours ago
Verified
Material cut exactly to size
Material cut exactly to size, well packaged, no scratches or any other damage. Will be using them again.
david,
10 hours ago
Verified
Exact and we'll packed 🙂
Ordered a custom sized sheet to protect a wall from bike tyres. Arrived extremely well packed and the edges of the sheet were nicely finished, no roughness or chipping.
J. Stuart,
14 hours ago
Verified
Great service
Great service, really easy to get exactly the size and shape of wood you need, delivered to your door in a few days. I’d definitely use them again.
Amy Louise,
14 hours ago
Verified
All as requested Ply cut to size
All as requested
David James,
15 hours ago
Verified
It all happened smoothly except you put…
It all happened smoothly except you put my order in a place for collection and there was therefore a delay in my receiving the pieces but it was then quickly delivered.
Christine,
15 hours ago
Verified
Quick and accurate delivery
Quick and accurate delivery
customer,
17 hours ago
Verified
Brilliant company
Easy to order, well packed and fitted perfectly. Would highly recommend.
Chris C,
22 hours ago
Great customer service
I ordered 2 large items to use as desktops for my children's rooms. Unfortunately one of the items arrived broken but the customer service team were fantastic. I spoke with them that day and they quickly arranged a replacement, which came a week later. The desktops are great, I'd happily use cutmy again.
Steph Marsh,
1 day ago
Verified
Service perfect and easy
Service perfect and easy
Solange Fonseca,
1 day ago
Verified
Great shelves
Product was just what l ordered and perfect measurements.
Only nuisance was that I had paid for quick stand it took longer to arrive
Denise Rine,
1 day ago
Verified
Just brilliant
Just brilliant, especially for novices :) Simple, straightforward, easy site/instructions, excellent competitive pricing, helpful website... got everything I needed to a 1mm exacting spec!! Fast delivery. Highly recommended. Bish bash bosh.
Mrs F,
1 day ago
Verified
An excellent job
An excellent job. What arrived, perfectly packed was exactly what I ordered.
Alan,
1 day ago
Verified
Excellent Customer Service.
Excellent Customer Service.
When one experiences an issue with a product or service, one wishes to be able to contact a business and get a response.
In this case, CutMy met my expectations and endeavoured yo resolve the issue as expediently as they could.
Chris May,
1 day ago
Verified
Quick delivery of good quality, cut marine ply
Quick delivery of cut marine ply. Site was easy to use and the ply was good quality.
Elizabeth Westray,
1 day ago
Verified
Perfect
Easy, perfect
Jo Bennett,
1 day ago
Brilliant company
Brilliant company! I ordered 3 pieces and one of them had a minor scratch the size of a 50p coin. I told them about the scratch, but I didn't ask for a replacement (although they offered a replacement straight away), thinking I could remedy it. It turned out that the scratch was quite deep, and no amount of fine sanding made it disappear. About a month had passed when I went back to them and asked for a replacement. They were more than happy to send me a replacement, which I received today!! Their product, delivery, and customer services are top-notch. I highly recommend them. Thank you!!!
Mr Tashi Murik,
1 day ago
Verified
All good
All good. Product as described and delivered promptly.
Tim Perkins,
3 days ago
Verified
Perfect fit for my table glass
Perfect fit for my table glass. They advised to give allowance of 2mm each side which I did thankfully because it wouldn’t have fit! Excellent service
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.
