Magnetic Standard Secondary Glazing Kit
The Magnetic Secondary Glazing kit available right here at The Plastic People is one of the simplest and quickest ways to secondary glaze your existing windows without any planning permission or expense. Our solution is an easy to remove magnetic secondary glazing system that provides cost effective heat insulation, helps reduce condensation and still allows instant access to your window.
This glazing kit consists of an acrylic window panel (cut to size) from your dimensions and self-adhesive magnetic tape (which you need to add) once you establish your window perimeter. We have two lengths of Magnetic Glazing Tape for Standard kits, 5m and 1m lengths. Refer to our user guides below on this page for measuring, fitting and to get the best results.
Important Guides!
Download our new Secondary Glazing PDF guides including Measuring Guide (Standard), Measuring Guide (Extreme) & Secondary Glazing Installation Guide for an insight into how to measure and install your Secondary Glazing kit for the best results.
Important - Buyer Beware
For panels with a perimeter less than 4500mm, use 3mm acrylic with Standard tape. For panels with a perimeter greater than 4500mm, use 4mm acrylic with Extreme tape. For perimeters over 5000mm we recommend additional support as magnetic tape alone will not be enough to support the panel which could potentially detach and break.
Finding The Right Kit
For panels over 4500mm perimeter we recommend our Extreme Glazing Kit.
Please click the links above to help you measure up and work out the perimeter of your panels.
What Is Secondary Glazing?
Secondary glazing works as an additional layer of glazing for your existing windows. If measured and fitted correctly, it will essentially form a double glazed solution for your windows - that in turn helps with heat retention, condensation reduction and security.
Plastic secondary glazing is a much more cost-effective alternative when you compare it to glass - and when you can cut it to any size or shape you need it to be - then installation should be a straightforward and safe process. Secondary double glazing should always be fitted on the interior side of your window.
How Effective Is Secondary Glazing?
There are a number of reasons why DIY secondary glazing is a great investment.
First of all, you don’t need to replace your existing window pane to add secondary glazing yourself. This saves the cost you would incur when adding a double glazed glass window.
Again, if fitted and sealed correctly - secondary glazing will do a useful job of retaining indoor heat, reduce condesation and save money on heating bills. You’ll also find that secondary glazing does a good job of preventing indoor draughts that could cause a chill.
How Magnetic Secondary Glazing Works
We supply clear as glass acrylic for secondary glazing panels because it is lighter yet much stronger (17x) than glass and provides near perfect optical clarity. Double glazing made to measure is the perfect choice for any window shape or dimensions.
We suggest at least 2mm acrylic, although 3mm and 4mm acrylic will give more rigidity and should be chosen for larger windows.
Enter the sizes you need for your secondary glazing pane above then select the number of rolls of magnetic tape you require. The magnetic tape comes in a pack containing 5m of white steel tape to attach to your window frame and 5m of magnetic tape (with a white backing) to attach to your acrylic panel.
DIY double glazed windows provide easy, quick and cost effective heat and noise insulation too, along with instant access to the window making cleaning and ventilation simple.
How To Measure And Order DIY Secondary Glazing
Measuring up for our DIY secondary glazing is simple:
- Measure the length and width of the glass window pane that you want to secondary glaze. Measure the visible glass then add at least 25mm to the length and width measurements. This allows for space to attach the magnetic tape to your window frame.
- Enter your measurements into our Cut To Size Quote Tool above and complete your order.
How To Install DIY Secondary Glazing
Our simple DIY secondary glazing is straightforward to fit:
- When your order arrives and you’re happy to start, begin by cutting and sticking the black part of the magnetic tape to the edges of your new clear as glass acrylic window pane. The magnetic tape comes as a coil, so just measure off the length needed for each edge of your window, cut and stick down into position.
- Hold the acrylic window pane up to your window so that it overlaps your window frame equally on each edge.
- Using a pencil, draw around the acrylic window pane onto your frame. Now cut and stick the white metal strip of the magetic tape to your window frame - stick it just inside the pencil marks.
- Finally, lift your acrylic glazing pane to the window and click into place.
- Always fit your secondary glazing to your main window frame, not to the opening part of the window.
Is Magnetic Secondary Glazing Suitable For Listed Buildings?
- Because this type of secondary glazing does not require any planning permission it is an ideal solution for immediately tackling draughts and condensation in listed buildings.
Important Considerations
- Please check your existing window frame to see that you have at least 20mm of mounting surface available all the way round.
- We do not recommend our magnetic plastic secondary glazing solution for sloping windows or ceiling/roof windows.
- During the warmer months you may want to take down your panels. When doing so check your installation tape around your windows and store your panels flat to avoid warping until when you want to re-install.
Important Guides!
Download our new Secondary Glazing PDF guides including Measuring Guide (Standard), Measuring Guide (Extreme) & Secondary Glazing Installation Guide for an insight into how to measure and install your Secondary Glazing kit for the best results.
Image by Freepik
Secondary Glazing FAQs
Will secondary glazing eliminate condensation?
Condensation occurs when moisture in warm air settles on colder surfaces, such as windows. Secondary glazing cannot eliminate condensation completely, because it does not remove moisture from the air. However, by keeping heat inside your home and insulating windows (a common condensation point), secondary glazing can reduce the most noticeable effects.
Will secondary glazing help reduce noise from outside?
Opinions vary, but generally, single glazing with a secondary panel provides better insulation than standard double glazing, and double glazing with a secondary panel is better than triple glazing at reducing external noise.
Will secondary glazing make my home warmer?
Yes — secondary glazing, like double glazing, can prevent around 60% of window heat loss, keeping your home warmer.
Will secondary glazing work on larger windows?
For large windows (e.g., 1200mm × 1200mm or bigger), you can add support by placing a couple of screws immediately below the secondary glazing panel to prevent slipping or detachment.
For large or draughty windows, we recommend the Magnetglaze Extreme kit, which is ideal for insulating bigger windows.
If you are buying online, payments can be made securely by credit, debit card and PayPal.
You can display pricing as 'excluding' or 'including' VAT on our website. A break-down at final check-out will illustrate all the costs incurred including shipping and VAT. Any VAT exception would be established based on geographic location (postcode) at the time of ordering.
You're very welcome to visit one of our trade counters in Leeds if you'd like to view materials or discuss your requirements.
To keep our prices as competitive as possible, all orders are placed online via our website. This ensures full accuracy of sizes, specifications, and quantities, and allows us to maintain our low online pricing.
If you'd prefer not to order directly through the website, we're happy to help via email. Simply send your requirements to service@theplasticpeople.co.uk, and we can provide a quotation that can be added directly to your online basket for checkout.
Our team is also available on 0113 249 2222 to offer advice on material selection or product suitability prior to ordering.
Our team is also available on 0113 249 2222 to offer advice on material selection or product suitability prior to ordering.
We offer three delivery options, Standard (from £9.96), Next Day (from £24.00) and Named Day (from £33.00). Delivery options will be dependent on material availability, lead-time and geographic location.
When ordering, an estimated delivery date will be offered before payment. Depending on material, any fabrication work needed (polished edges, drilled holes, rounded corners) and geographic location; you'll have the opportunity to choose a delivery option to suit you at checkout. You can even collect in-person.
To track your DX consignment have your tracking number, calling card number, consignment number or customer reference ready. You may also be asked for your delivery postcode.
To track your DHL consignment have your tracking number, calling card number, consignment number or customer reference ready. You may also be asked for your delivery postcode.
Yes. When proceeding to check-out you'll have the option of collection, we are based in Leeds (LS9 0DX). Our Collection Point is open from 8.00am until 4.00pm Monday to Thursday and 8.00am until 3.00pm on Fridays. We are closed on weekends and bank holidays. We'll email you when your order is ready to collect.
Protective Films
All plastic sheet products will have a Clear, Blue or White protective film on both sides or a combination of all three. This is to protect during transit and needs removing before usage. Sometimes it can be difficult to peel off but use a thumbnail gently on any corner to lift and peel. Alternatively gently wet any corner with a cloth to separate film and peel.
Adhesives & Sealants
When using any adhesives or sealants with your plastic sheet product great care must be taken in ensuring its compatibility. Some products can react adversely and either not bond/seal properly or would cause the acrylic to cloud or become white at the bond line. Refer to our web pages for advice if unsure. Check your sealant/adhesives ‘use by date’ to ensure its still current for best performance in your project.
Delivery Damages
You have 14 days from receiving your order to report any visible damages. Please email a photograph of the damage along with your order number and contact details as soon as possible to service@theplasticpeople.co.uk. We'll arrange a refund or replacement for you as soon as we receive this. Please keep your packaging and do not use the damaged goods, so they can be collected and returned to us if necessary.