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First time used Cut My . My order was delivered quickly and exactly as ordered well wrapped to avoid any damage. I would not hesitate to recommend this company and will certainly use them again in future.
Mr Kevin O'Shaughnessy,
6 minutes ago
Verified
Very good and happy with quality of product and service provided
I ordered a bespoke table top after not being able to find the right size and shape I was looking for. There are lots of different finishes to choose from and combinations so alot more flexible and creative than the mainstream furniture suppliers.
I dealt with James re a couple of questions for the tabletop, very helpful and easy to deal with. It only took a week or so for the table top to arrive.
The only thing I would say is when the table top was delivered there was no packaging atall. Fortunately there was no damage but laminated MDF is very easy to chip or scratch so I would at least expect cardboard corners. The delivery driver was very pleasant. I was very happy with the quality of the table top and would definitely use again and recommend to others.
C Gholub,
14 minutes ago
Verified
Perfectly cut and good value
Perfectly cut and good value. Delivered on time
Penny,
2 hours ago
Verified
Excellent product
Excellent product, well packaged and swiftly delivered.
Mrs Mary Linane,
13 hours ago
Verified
Excellent service
Excellent service
John Chicken,
13 hours ago
Verified
Quick delivery and very good item
Quick delivery and very good item
Janet Ford,
14 hours ago
Verified
Excellent product
Excellent product
Angela D'Ippolito,
15 hours ago
Verified
Arrived promptly and the colour and…
Arrived promptly and the colour and size were as ordered and anticipated.
There was too much tape and sticky items which stuck to the shelf and took a lot of hard work to remove. The shelf was slightly damaged but I did not attempt to retun it as this is hidden from view and does not make a difference to the overall appearance. I would use this service again.
Vicky Schofield,
16 hours ago
Verified
Start to finish, amazing
Great easy to use website. Fantastic communication and the product quality was brilliant. All round, we are very pleased with our purchases and would highly recommend this company. We bought new table tops and a shelf to add to our motorhome.
Mrs Amanda Munro,
16 hours ago
Verified
Excellent value and a high quality…
Excellent value and a high quality product. Fits perfectly !!
Mickey Paul,
16 hours ago
Verified
Quick delivery and excellent product
Quick delivery and excellent product
ANDY WOOLLON,
16 hours ago
Easy to order
Easy to order , good price and quality, fast delivery. Used before 3 or 4 times. Excellent.
Doug Easton,
16 hours ago
Verified
Very good service and competitive…
Very good service and competitive price. All Perspex for splashback delivered as promised. I recommend!
Adam Haffner,
18 hours ago
Verified
Easy to order and quick delivery
Easy to order and quick delivery.
Mine is going to be used under a fish tank for more stability.
Sd,
18 hours ago
Verified
Good company
Really happy with the wood and Flexi glass I ordered. There was a slight error with one of my pieces of wood which they sorted out very quickly and to my preference.
Fast and very good price compared to other online cut to order services.
Antony ,
18 hours ago
Verified
Did the job perfectly
Exactly what I wanted and at a good price . Speedy delivery
Julie Woodhead,
19 hours ago
Verified
Makes life easy
Easy to order and very useful to have it cut to size, no grappling with an 8x4 sheet. Items were very well packed with strong protection for the vulnerable edges and arrived promptly.
Malcolm ,
20 hours ago
Verified
Superb cutting on the mark.
Superb cutting and delivery service thanks to all.
Richard Jeffery,
22 hours ago
Verified
Great quality kitchen plinth cut…
Great quality kitchen plinth cut exactly to supplied measurements
Larry,
1 day ago
Verified
Excellent
Excellent service exactly what we wanted. Postage is expensive. Overall happy with purchase.
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.
