The ultimate guide to window frame types: Why steel frames stand out

• 16 December 2024
• News

Understanding the frame of a window

A window frame is a crucial component that influences everything from a home’s energy efficiency to its architectural character.

Homeowners in the UK are bombarded with numerous choices when selecting window frames, each material offering distinct advantages and considerations.

This blog will explore various window frame materials, with particular attention to steel frames and their unique benefits. We’ll examine how different frame types affect thermal performance, maintenance requirements and overall aesthetic appeal.

The evolution of window frame materials

Traditional timber windows

Timber windows have been a part of British architecture for centuries. While these classic frames offer natural beauty and character, particularly in period properties across London and other historic areas, they require regular care and maintenance throughout their lifetime. In some instances, the window sash and jamb in timber frames will need regular attention to maintain functionality.

The rise of uPVC

One material which has become increasingly popular with UK homeowners is uPVC. Although these types of windows can offer some practical benefits, they lack the super slim profiles and architectural elegance associated with window frames manufactured with steel.

Aluminium frames

Aluminium frames are seen as a more contemporary option but as they have a higher thermal conductivity, compared to other materials, this can affect their energy efficiency – unless properly treated with thermal barriers.

Steel frames – the premium choice

Why steel windows stand apart

Steel window frames, particularly those manufactured by heritage brands like Crittall Windows, offer unparalleled benefits that set them apart from other materials. The entire window system benefits from steel’s inherent strength, allowing for incredibly slim profiles, expansive glass areas and superior structural integrity.

Superior strength and durability

Steel frames are approximately three times stronger than aluminium alternatives. This exceptional strength means steel windows require little maintenance while offering outstanding longevity.

Thermal performance and energy efficiency

Advanced thermal performance

Following innovative engineering, steel windows have evolved dramatically since they were first launched in 1849. Modern solutions, designed by specialist manufacturers, can now achieve outstanding thermal performance using either a traditional thermal break or new innovative solution (like the Crittall Windows’ Corporate W20 TE® rolled steel profile). Both types significantly reduce heat transfer between the inside and outside of a property and mean homeowners can enjoy the classic aesthetics of steel windows without compromising on energy efficiency.

Superior glazing options

When it comes to glazing, steel frames accommodate various options. Plus, the robust nature of steel means these frames support a heavier pane of glass with ease, allowing for enhanced insulation without needing bulky profiles. This versatility in glass (including standard glass and double glazing) enables homeowners to achieve impressive Window Energy Ratings, contributing to reduced energy bills throughout the year.

Design flexibility and aesthetic appeal

Architectural versatility

Modern steel windows offer remarkable design flexibility that can suit various architectural styles. Steel frames can be crafted to complement the style of your home perfectly.

Colour options and finishes

Steel frames can also be finished in an extensive palette of colours. While iconic black steel frames are still a top choice, we offer a wide range of colours so homeowners can find a solution that suits their personal style.

Structural benefits and installation

Support capabilities

The inherent strength of steel means these frames can support substantial structural glazing requirements. The window panels can span greater distances without the need for additional support, creating cleaner sight lines and more impressive architectural statements.

Installation considerations

Professional installation of steel windows requires expertise and precision. Reputable manufacturers work with approved installers who understand the specific requirements of steel window installation, ensuring optimal performance and longevity.

Environmental benefits and sustainability

Sustainable manufacturing

Steel windows represent an environmentally conscious choice for modern homeowners. At Crittall Windows we utilise high-grade recycled steel in our production processes, significantly reducing the environmental impact of our window manufacturing. The durability of steel means these windows rarely need replacing, further enhancing their environmental credentials.

Energy conservation

The combination of slim profiles and excellent thermal performance makes steel windows particularly energy efficient. This not only reduces energy consumption for heating but also decreases the need for artificial lighting during daylight hours.

Maintenance and longevity

Minimal upkeep

An incredible advantage of steel windows is their low maintenance requirements. Unlike timber windows, steel frames finished with modern coating, require minimal attention to maintain their pristine appearance. A simple cleaning routine is all that’s needed to keep these windows looking their best throughout the seasons.

Weather resistance

Modern steel windows are hot-dip galvanized and polyester powder coated to protect the frames against corrosion and weathering. This treatment ensures these windows maintain their performance and appearance even in challenging British weather conditions.

Investment considerations

Long-term value

While the initial investment in steel windows is higher than other types of materials, like uPVC or standard aluminium, the long-term value is incredible. The exceptional durability of steel frames and their timeless appeal means they often outlast other window types by decades. This longevity equates to significant cost savings over the lifetime of the property.

Increasing UK property value

Steel windows from prestigious manufacturers can significantly enhance property values. This is because their architectural appeal and heritage status makes them particularly desirable in both period renovations and modern developments across London and the wider UK market.

Making your selection

Professional consultation

When considering steel windows, working with experienced manufacturers and their approved partners is essential. A quality supplier will provide detailed guidance on frame styles, glazing options and finish selections that best suit the property’s style and requirements.

Quality assurance

Choosing windows from established manufacturers will also affect the type of customer service you receive. Leading companies maintain strict control throughout the manufacturing process, from initial design through to final installation, ensuring every window meets exacting standards.

Why do steel frames stand out?

As mentioned above, the frame of a window plays a crucial role in both the practical performance and aesthetic appeal of a property. While different types of materials offer different benefits, steel frames stand out for their unique combination of strength, elegance and longevity. Their slim profiles, exceptional durability, and outstanding thermal performance make them an excellent choice for both traditional and contemporary properties.

For homeowners on the hunt for new windows that offer character, minimal maintenance and superior performance, steel frames represent the unbeatable window design and manufacturing. Whether you’re undertaking a renovation project, building a new home, or replacing existing windows, steel frames deserve serious consideration for their ability to enhance both the function and beauty of your property. Get in touch today to discover our full range of internal and external steel windows today.