WINDOWS
A guide to window types, materials and approximate costs
CHOOSING THE RIGHT WINDOWS
Windows are one of the most important architectural elements of any property. The right choice can transform both the appearance and performance of your home, improving natural light, thermal efficiency, and kerb appeal.
This guide covers the main window types we work with, along with indicative pricing to help you budget your project. Every property is different, so we recommend booking a consultation for an accurate quote tailored to your specific requirements.
WINDOW TYPES
Sash Windows
Traditional sliding sash windows crafted from premium hardwood. Ideal for period properties and conservation areas. Available in single or double-hung configurations with modern draught-proofing and security features.
- Period authentic detailing
- Draught-sealed for efficiency
- Cord, spring, or spiral balance systems
- Single or double glazed options
Indicative price: £1,200 - £3,500 per window
Casement Windows
Side-hung or top-hung windows that open outward. A versatile choice for both traditional and contemporary properties. Can be designed with multiple opening lights and fixed panels.
- Flush or stormproof options
- Multi-point locking systems
- Various glazing bar patterns
- Hardwood or engineered timber
Indicative price: £800 - £2,500 per window
Aluminium Windows
Slim-profile aluminium frames offering maximum glass area and clean, modern aesthetics. Thermally broken profiles provide excellent insulation while maintaining structural strength.
- Ultra-slim sightlines
- Thermally broken profiles
- Powder-coated in any RAL colour
- Low maintenance
Indicative price: £1,500 - £4,000 per window
Steel Windows
Crittall-style and heritage steel windows offering the thinnest possible frames. Perfect for industrial aesthetics or replacing original steel windows in period properties.
- Minimal frame profiles
- Hot-dip galvanised finish
- Heritage and modern designs
- Fire-rated options available
Indicative price: £2,000 - £5,000 per window
Roof Windows & Skylights
Bring natural light into loft conversions, extensions, and flat-roofed spaces. Available in fixed, opening, and walk-on specifications with various glazing options.
- Centre-pivot or top-hung
- Electric or manual operation
- Blackout blind options
- Various sizes available
Indicative price: £500 - £3,000 per unit
Bifold & Sliding Doors
Create seamless indoor-outdoor living with large-format glazed doors. Available in aluminium, timber, or composite materials with slim sightlines and smooth operation.
- Multiple panel configurations
- Threshold options for level access
- High security multi-point locks
- Various frame materials
Indicative price: £3,000 - £15,000+ depending on size
GLAZING OPTIONS
The type of glass you choose affects thermal performance, noise reduction, and security.
Double Glazing
Standard specification with two panes of glass separated by an insulating gap. Argon-filled cavities and low-E coatings improve thermal performance.
U-value: 1.1 - 1.4 W/m²K
Triple Glazing
Three panes of glass for superior thermal and acoustic insulation. Recommended for exposed locations, noise reduction, or achieving Passivhaus standards.
U-value: 0.5 - 0.8 W/m²K
Acoustic Glass
Laminated glass with acoustic interlayers to reduce external noise. Ideal for properties near busy roads, flight paths, or urban areas.
Noise reduction: up to 45dB
Self-Cleaning Glass
Special coating that uses UV light and rainwater to break down and wash away dirt. Reduces maintenance on hard-to-reach windows.
Reduced cleaning frequency
DISCUSS YOUR PROJECT
Every window project is unique. Contact us to discuss your requirements and receive a detailed quotation based on your specific property and specifications.