Casement Windows Price Guide London 2025

Complete Cost Breakdown for London Homeowners

Casement Window Pricing for London Properties

Casement Window Pricing for London Properties

Understanding casement window costs helps London homeowners make informed decisions. Prices vary based on size, material choice, glass specifications, and installation complexity.

Material Matters: uPVC, Aluminium, and Timber

The choice of frame material is the single largest factor influencing the cost of your casement windows.

uPVC Casement Windows: Generally the most cost-effective option, uPVC is highly popular in London for its excellent thermal efficiency, minimal maintenance, and longevity. Expect the lowest starting price point with uPVC.

Aluminium Casement Windows: These are typically priced higher than uPVC. They offer a sleek, modern look with very slim frames, making them a top choice for contemporary properties or those seeking maximum glass area.


Timber Casement Windows: Often the most expensive option, timber is favoured for period properties in conservation areas and for its classic aesthetic. While the initial cost is higher, premium engineered timber offers superior natural insulation and is highly durable with proper maintenance

Budgeting for Quality and Longevity

While budget considerations are important, investing in quality casement windows pays long-term dividends for London properties. Energy-efficient models reduce heating costs and durable materials minimise maintenance expenses.

Budgeting for Quality and Longevity

Hidden Costs and Installation Factors in London

London-specific installation complexities can impact the final price. Always ensure your quote includes the following variables to avoid unexpected costs:

Installation Difficulty: Properties in Central London or high-rise blocks may require specialist equipment (like scaffolding) or extended labour time due to access constraints, increasing the installation cost.

Disposal of Old Units: Reputable installers should include the cost of safely removing and environmentally disposing of your old windows, which must meet local council regulations.

Customisation and Period Features: If your property requires bespoke colours, Georgian bars, obscure glass, or needs to comply with conservation area guidelines, this will add to the price but ensures compliance and a cohesive look.

Structural Alterations: If the project requires adjusting the window opening or installing new lintels, this structural work will incur additional costs.

Getting Accurate Quotes and Comparing Options

When seeking quotes for casement windows, ensure you're comparing like-for-like specifications. Request detailed breakdowns that include materials, glass type, hardware, installation costs, and any additional services. Be wary of quotes that seem unusually low, as they may indicate inferior materials or inexperienced installers. A reputable company will provide transparent pricing and explain the value behind their quoted prices.

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