Which? Advice No advertising, no bias, no hidden agenda
How to buy double glazing

How to buy double glazing

  • How the law protects you from dodgy installers
  • Why paying with a credit card or with finance gives you extra protection
  • Your options if you’re unhappy with your windows
  • Why you should look for 'insurance-backed' guarantees

What's in this guide

Your rights

The laws and regulations you can use to deal with problems

How to complain

Step-by-step guides to help you get the result you want

Sample letters

Templates of letters you can use to complain about problems

 FAQs

Commonly asked questions and answers about double glazing