Secondary diy glazing is a popular way of improving the insulation of existing windows. It works by trapping a layer of air between the existing window and a separate acrylic pane, which acts as an effective insulator to reduce heat transfer and outside noise.

There are many different types of DIY secondary glazing kits available, ranging from the ultra-cheap and unobtrusive (though not always good looking) to higher quality, professional-grade solutions which can look very similar to double-glazed windows and offer an excellent payback on energy bills. Whichever type of kit you choose, it’s important to measure your existing windows carefully and to check whether planning permission is required as this may vary by region.

The DIY Guide to Secondary Glazing: Enhancing Comfort and Efficiency on Your Own Terms

It’s also worth researching window suppliers well to ensure that they have a good track record and positive customer reviews. Some of the UK’s best known window installers such as Everest and Anglian now offer a range of made-to-measure secondary glazing which is optimized for insulation and soundproofing.

For example, ecoGlaze secondary glazing for fixed, sliding, and hinged windows is an efficient and cost-effective alternative to replacement uPVC windows. It is designed to be simple to fit and requires no professional installation, making it a viable option for any homeowner. This system is designed to be both practical and effective, with a very high thermal efficiency and acoustic rating, and it is approved for use in listed buildings and in conservation areas.