MaterialsComposite

Composite Windows

A hybrid material combining the benefits of multiple materials, usually with a timber core and aluminum exterior for low maintenance and good insulation.

Composite windows

Price Range

£600-£3000

Lifespan

30-45 years

Thermal Efficiency

Excellent

Maintenance

Low

Pros and Cons

Advantages

  • Combines advantages of timber and aluminum
  • Excellent thermal performance
  • Low maintenance exterior
  • Premium appearance
  • Long lifespan

Considerations

  • Highest cost option
  • Limited suppliers and installers
  • Repairs can be complex
  • Heavy

Compatible Window Types

Awning Window

Good

Less common but excellent performance

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Fixed Window

Good

Premium option with excellent performance

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Sash Window

Good

Good performance but less traditional appearance

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Bay Window

Excellent

Excellent performance in bay configurations

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Casement Window

Excellent

Premium option offering best of both worlds

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Tilt and Turn Window

Excellent

Premium option with excellent performance

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Pricing Guide

Composite Window Costs

£600-£3000

Per window, including installation

Budget Option

Standard size casement window with basic features

Popular Choice

Standard window with enhanced features and better warranty

Premium Option

Large windows with premium features and extended warranty

Factors affecting price:

  • • Window size and style
  • • Glazing type (double vs triple)
  • • Hardware and security features
  • • Installation complexity
  • • Regional variations

Care and Maintenance

Maintenance Requirements: Low

Regular Maintenance

  • Clean frames and glass regularly
  • Lubricate hinges and locks annually
  • Check and clean drainage channels
  • Inspect seals and weatherstripping

Professional Servicing

  • Annual service check recommended
  • Adjust hinges and mechanisms as needed
  • Replace worn weatherseals
  • Warranty: 20-30 years

Lifecycle Cost Framing

Looking beyond upfront installation cost helps compare true value. The examples below show a practical whole-life framing for a typical home window replacement cycle.

Cost LensCompositePlanning Note
Typical installed range£600-£3000Use local quotes for exact labour variance.
Service life window30-45 yearsLonger lifespan can offset higher initial spend.
Maintenance profileLowHigher maintenance should be budgeted annually.
Warranty envelope20-30 yearsCompare warranty terms, exclusions and installer backing.

Suitability by Home Type

Period & heritage homes

Composite can work well where visual character, detailing and planning context matter.

  • • Prioritise finish and profile compatibility
  • • Check conservation or planning constraints
  • • Match hardware and glazing style to property era

Family suburban homes

Balanced cost, durability and upkeep often drive decisions for multi-window projects.

  • • Focus on warranty + maintenance burden
  • • Compare thermal efficiency against budget
  • • Validate installer aftercare standards

Coastal / exposed locations

Exposure to moisture, wind and salt air raises the importance of material resilience.

  • • Ask installers about local durability track record
  • • Confirm maintenance intervals in writing
  • • Prioritise robust seals and hardware quality

Ready for Composite Windows?

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