Calculate your window replacement cost
Double-glazed window cost by type in Birmingham
UK £500–£1,250 · avg £1,000£497–£1,250 · avg £1,000
UK £700–£1,500 · avg £1,200£700–£1,500 · avg £1,200
UK £600–£1,400 · avg £1,100£600–£1,400 · avg £1,100
UK £600–£1,400 · avg £1,100£600–£1,400 · avg £1,100
UK £1,100–£4,000 · avg £2,500£1,100–£4,000 · avg £2,500
UK £1,500–£5,000 · avg £3,000£1,500–£4,950 · avg £3,000
Whole-house double glazing
What can change a real Birmingham quote?
- Casement, sash, sliding, tilt-and-turn, bay or bow style
- Window dimensions and opening configuration
- uPVC, aluminium or timber frame specification
- Double versus triple glazing
- Number of windows in the order
- Scaffolding or difficult access
- Making good around the openings
Local planning considerations
Actual contractor pricing can vary by access, project scale and specification, so compare itemised quotes against the planning range.
- City-centre, inner-urban and suburban projects can have very different access, parking and delivery conditions.
- Separate structural repairs or remedial work from the headline renovation budget when the existing condition is uncertain.
- Ask contractors to identify waste, scaffold, professional fees and approvals so quotes can be compared against the same scope.
How the regional model works
The broad West Midlands factor is 0.98×, but the live window calculator applies only 30% of that regional difference because replacement-window pricing has a large manufactured-product component. The resulting Birmingham window factor is 0.994×.
Sources
Double Glazing Costs in the UK in 2026
Published / checked: May 2026
Used for: Replacement window ranges by window type and whole-house double glazing benchmarks
Frequently asked questions
How much do replacement windows cost in Birmingham in 2026?
Current double-glazing benchmarks run from about £500 for a basic casement to £5,000+ for larger specialist bow windows. A typical 3-bedroom whole-house project is around £8,000–£15,000 nationally; the modelled Birmingham range is £7,950–£14,900.
How much do 10 casement windows cost in Birmingham?
The national casement benchmark is £500–£1,250 per window. For 10 windows, the calculator's moderated regional factor gives £4,950–£12,450, before triple-glazing or scaffolding allowances.
Why is the Birmingham window factor smaller than the general regional factor?
Frames and glazing units contain a substantial nationally priced manufacturing component, so the calculator applies only 30% of the broad regional difference.
What can increase a window replacement quote?
Sash, bay and bow windows, aluminium or timber frames, triple glazing, upgraded security glass, difficult access, scaffolding and repairs to existing openings can increase the total.