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Find trustworthy companies near you that can fit new double glazed windows in your home, or repair your existing windows.
All Which? Trusted Traders have passed our assessment process including credit, reference and background checks. You can read reviews left by their previous customers, which have been verified by our in-house moderators.
Use our simple search tool to find companies in your area, or head to our listings for glaziers in London.
Need more help?
- Read advice from the Which? experts on how to buy double glazing
- Find out how much double glazing costs
- See how customers rated double glazing companies in our survey