Installation buyer guide
What to check before installing double glazed windows.
Before installing double glazed windows, check whether the existing frames are beyond sensible repair, what glass specification is needed, how the windows will open, whether ventilation and security are covered, and what the quote includes. Replacement should solve a clear performance, security or condition problem.
Short answer
Before installing double glazed windows, check whether the existing frames are beyond sensible repair, what glass specification is needed, how the windows will open, whether ventilation and security are covered, and what the quote includes. Replacement should solve a clear performance, security or condition problem.
Visible proof customers can recognise
Start with the reason for replacement
The strongest installation briefs come from a real need: failed frames, poor security, persistent draughts, old glazing, difficult operation or a better door-and-window layout. Vague replacement pages do not convert as well as pages that explain the decision.
Make the quote comparable
Ask what is included: frame style, glass type, handles, trickle vents, trims, disposal, access and making good. This keeps the conversation practical and reduces the chance of comparing two very different quotes.
Common decisions this page covers
- Frame condition
- Glass specification
- Opening style
- Security hardware
- Ventilation
- Installation details
Related pages
Questions customers ask
- Do I need full replacement or repair?
If the frame is sound and the fault is a sealed unit, hinge, lock, handle or seal, repair may be enough. Full replacement is sensible when the frame, security or long-term performance has failed.
- What should I send for an installation quote?
Send the property location, photos, number of windows or doors, the reason for replacement and any preferred style or glass requirements.
- Can A&E advise on repair before replacement?
Yes. The business takes a repair-first approach and can explain when replacement is the better long-term answer.
Tell us what needs fixing or replacing.
Include the fault, location, photos and whether the property is secure. That gives the team the best chance of advising quickly.