Upgrading your glazing and windows is a big decision—one that affects comfort, energy bills, security, and even the value of your home. Whether you’re renovating a Victorian terrace in Hackney or extending a 1930s semi in Leytonstone, here’s what you need to know before making your choice.

Here are some helpful questions you can ask your specialist to assess their expertise, understand the process, and ensure you get the best service for your home.