Compare Window Types
Compare different window types side by side to find the perfect replacement solution for your home
Popular Comparisons
Casement vs Tilt and Turn
Compare Casement and Tilt and Turn window styles for efficiency, features and suitability.
Casement vs Sash
Compare Casement and Sash window styles for efficiency, features and suitability.
Awning vs Casement
Compare Awning and Casement window styles for efficiency, features and suitability.
Bay vs Casement
Compare Bay and Casement window styles for efficiency, features and suitability.
Sash vs Tilt and Turn
Compare Sash and Tilt and Turn window styles for efficiency, features and suitability.
Awning vs Tilt and Turn
Compare Awning and Tilt and Turn window styles for efficiency, features and suitability.
How Size Affects Window Replacement Costs
Window size is one of the most significant factors affecting replacement costs. Below we show how prices typically increase with larger window dimensions.
Standard Window Sizes & Costs
| Size Category | Dimensions (Width × Height) | Casement | Sash | Tilt & Turn |
|---|---|---|---|---|
| Small | 600mm × 900mm | £400 - £600 | £550 - £750 | £500 - £700 |
| Medium | 1000mm × 1200mm | £600 - £800 | £750 - £950 | £700 - £900 |
| Large | 1200mm × 1500mm | £800 - £1,000 | £950 - £1,200 | £900 - £1,100 |
| Extra Large | 1800mm × 2100mm | £1,000 - £1,400 | £1,200 - £1,600 | £1,100 - £1,500 |
*Prices include supply and installation for standard double glazed windows. Custom sizes, glazing options, and additional features will affect the final cost.
Cost Factors for Window Replacement
Window Type Impact on Cost
Fixed Windows
The most affordable option as they don't open (-20% vs casement)
Casement Windows
Standard pricing, used as the baseline for comparisons
Tilt and Turn Windows
+15-25% compared to casement due to complex mechanisms
Sash Windows
+30-40% compared to casement due to traditional design
Bay Windows
+50-100% due to complex installation and multiple panels
Additional Cost Factors
Glazing Options
Triple glazing adds 15-25% to window cost
Security Features
Enhanced locks and laminated glass add 5-15%
Installation Complexity
Difficult access or structural changes add 10-30%
Window Quantity
Multiple windows can reduce per-unit cost by 5-15%
Energy Efficiency
Low-E coatings and warm edge spacers add 5-10%
Making Your Decision
When comparing window types, consider multiple factors beyond just price. Look at energy efficiency ratings, security features, ventilation options, and aesthetic appeal to make an informed decision.
Key Comparison Points:
- Initial purchase and installation costs
- Energy efficiency and potential savings
- Warranty length and coverage
- Security features and ratings
Consider These Factors:
- Window style compatibility with your home
- Maintenance requirements
- Ventilation needs for different rooms
- Local climate conditions