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Cost Of Sash Windows: Average Price Ranges And Cost Factors 

Cost Of Sash Windows

The average for a single sash window typically falls between £825 and £1,398. Several factors influence the range, including the choice of materials, the window’s dimensions and bespoke features.

We’ll review the factors shaping these timeless installations, offering insights to help your decisions. Whether you’re inclined towards a traditional charm or a contemporary allure, comprehending the dynamics of costs ensures a clear path to stylish and functional windows, framing your view with clarity.

Average Cost of Sash Windows Depending on Types

The cost of sash windows fluctuates based on their specific type. Please check the chart below to know their cost range.

Window style

Cost Range

Single-Hung Sash Window

£150 to £650

Double-Hung Sash Window

£300 to £750

Sliding Sash Window

£400 to £1000

Box Sash Window

£400 to £800

Tilt and Turn Sash Window

£300 to £500

Mock sash windows

£200 to £1200

Venetian sash windows

£400 to £550

Factors That Influence Sash Window Cost:

Here are the elements shaping the pricing of sash windows as we delve into the factors influencing their cost.

1. Profile:

The profile of a sash window defines its character. Elaborate designs and intricate details, often found in traditional or period styles, contribute to a higher cost. Homeowners seeking a bespoke or historically accurate appearance may opt for a more complex profile, appreciating the craftsmanship involved. Modern profiles, though simpler, can offer a sleek aesthetic at a comparatively lower price point.

2. Size and Weight:

The size and weight of a sash window are pivotal in determining both material requirements and construction complexity. Larger windows demand more resources and skilled labour for their creation, leading to higher costs. Additionally, the choice of hardware and support mechanisms must be robust enough to accommodate the increased size and weight.

3. Material:

The material chosen for sash windows significantly influences their cost. Timber, known for its classic appeal, may be more expensive than uPVC or aluminium. While timber offers a traditional look, uPVC and aluminium are favoured for their durability and low maintenance. Homeowners must weigh their aesthetic preferences against budget considerations when selecting the material for their sash windows.

Sash windows with double glazing (1200 X 1200mm) and various materials may incur costs, as outlined below.

Window material

Cost range


£300 – £1,065


£390 – £1,390


£450 – £1,600

4. Glass:

Glass is a pivotal component affecting both the functionality and cost of sash windows. Opting for double-glazed or energy-efficient glass may incur higher upfront costs, but these investments often translate into long-term benefits. Enhanced insulation and energy efficiency can contribute to lower utility bills, making glass an important consideration for homeowners looking for a cost-effective and sustainable solution.

5. Astragal vs. Georgian Bars:

The decision between astragal bars and Georgian bars introduces an element of personal taste and historical accuracy. With their panes, Astragal bars create a traditional aesthetic reminiscent of classic sash windows. In contrast, Georgian bars offer a distinct grid pattern that suits a more modern or tailored look. Choosing between these decorative elements can impact the overall cost, but it often reflects the homeowner’s stylistic preferences.

6. Colour:

The sash windows’ colour contributes significantly to a property’s visual appeal. While standard colours may be included in the base cost, custom or non-standard colours can incur additional expenses. Specialised paints or finishes may be required to achieve specific shades, and the durability of these custom treatments can also influence costs. Homeowners balancing aesthetics and budget considerations must carefully weigh the impact of colour choices on the overall cost of their sash windows.

7. Other Customisation Options:

Beyond standard features, homeowners can choose from various customisation options to tailor their sash windows to specific preferences. Special hardware, unique finishes, and bespoke detailing are available. These customisations add a personal touch and uniqueness to the windows but may cost additional. Homeowners valuing individuality and specific design elements should consider these options when budgeting for their sash windows.

8. Installation:

Professional installation is a critical aspect of the overall cost of sash windows. Skilled labour and any necessary preparatory work contribute to the expense. Well-executed installation ensures the windows fit seamlessly, providing optimal functionality and longevity. While it may be tempting to cut costs on installation, investing in a qualified professional pays dividends in terms of the windows’ performance and durability. Homeowners should consider installation as a crucial component of the overall budget for their sash windows, prioritising quality craftsmanship for a lasting investment.

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Wrapping up

Understanding the cost of sash windows involves recognising key factors. The average price varies based on size, materials, and customisations. Smaller windows can be budget-friendly, while larger or custom designs may cost more. Timber, uPVC, and aluminium influence costs differently, offering choices for various budgets. Don’t forget the impact of additional features like astragal bars or unique finishes. To ensure a fair deal on sash windows, gather quotes from local suppliers in Derbyshire, considering both quality and price. Ultimately, sash windows are an investment blending style and function, and by weighing these cost factors, you can make an informed decision that enhances both your home and your budget.

Director at Chesterfield Window Centre | Website

In 2005, I founded Chesterfield Window Centre with a vision to redefine the window and door industry through a commitment to quality, innovation, and customer satisfaction. The journey began with a deep understanding of the market, identifying gaps, and envisioning a business that not only meets but exceeds customer expectations.

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