How much does double glazing add to the value of a house?

In Summary

• Double glazing can increase your property value by up to 10%, making it a smart investment for homeowners looking to improve their home’s worth
• Energy efficiency improvements from modern double glazing significantly reduce heating bills and create a more comfortable living environment
• Increased kerb appeal from quality window frames and improved aesthetics attracts potential buyers and modernises your property’s appearance
• Superior thermal insulation and acoustic properties provide better heat retention and noise reduction compared to single glazing
• Professional installation by FENSA-approved installers ensures compliance with building regulations and provides peace of mind through comprehensive guarantees

If you’re wondering exactly how much value double glazing adds to your home, research consistently shows an average increase of 10% in property value. With approximately 92% of UK homes already featuring some form of double glazing, the market has shifted towards expecting these energy-efficient features as standard. However, not all double glazing is created equal, and modern systems continue advancing in thermal efficiency and aesthetic appeal.

At Unique Glazing, we source our glass from industry leaders Pilkington Glass, ensuring superior quality in every installation. As manufacturers of both uPVC and aluminium windows, we understand that the right choice of materials and professional installation can make a significant difference to your home’s value, energy bills and overall comfort.

uPVC windows can be finished in a variety of colours.

The benefits of quality double glazing

Installing replacement windows with modern double glazing technology offers multiple advantages that directly impact your property value and daily living experience.

Increasing property value

Estate agents consistently report that homes with quality double glazing windows attract more interest from potential buyers. The addition of double glazing not only provides immediate visual improvements but also signals to buyers that the property has been well-maintained. Period properties particularly benefit from sympathetic window replacement that respects original features whilst providing modern thermal efficiency. This smart move typically yields a return on investment that makes the cost of double glazing worthwhile when you come to sell.

Improving energy efficiency

Energy efficiency refers to how well your home retains heat and reduces the need for additional heating. Modern double glazing dramatically improves your home’s energy efficiency through advanced thermal insulation, with our A++ rated windows achieving U-values as low as 1.1W/m²K. This means significantly reduced heat loss compared to single glazing, leading to lower energy bills and a more comfortable home throughout the year. An improved Energy Performance Certificate rating also adds tangible value when selling your property.

Kerb appeal

The aesthetic appeal of new windows immediately transforms your home’s exterior appearance. Whether you choose sleek aluminium windows or versatile uPVC casement windows, quality replacement windows create a fresh, well-maintained look that catches the eye of potential buyers and neighbours alike. The natural light that modern double glazing allows through also brightens interior spaces, making rooms feel larger and more welcoming, as well as healthier.

Sound reduction

Acoustic insulation is an often-overlooked benefit of modern double glazing. The two panes of glass, separated by an insulating gas layer, significantly reduce external noise pollution. This is particularly valuable in busy areas where traffic noise or neighbourhood sounds can affect your peace of mind and property desirability.

Security

Double glazed windows offer substantially better security than single glazing, with multi-point locking systems as standard on our installations. The increased difficulty in breaking through two panes of glass, combined with robust window frames and advanced locking mechanisms, provides extra protection for your family and belongings, a feature that potential buyers highly value.

What double glazing options are available?

Modern homeowners have excellent choices when selecting replacement windows, with each material offering distinct advantages for different property types and budgets.

uPVC windows

uPVC (unplasticised polyvinyl chloride) is a durable plastic material that has become the most popular choice for window frames across the UK. Its affordability doesn’t mean compromising on quality, modern uPVC provides excellent thermal efficiency and can last up to 35 years with minimal maintenance.

Key benefits include:

• Exceptional value for money
• Outstanding thermal insulation
• Low maintenance requirements
• Available in multiple colours and finishes
• 100% recyclable and environmentally friendly
• Weather-resistant and fade-proof

Casement windows

These traditional hinged windows open outward and are perfect for most property styles, offering excellent ventilation and easy cleaning access.

Flush sash windows

Designed with the sash sitting flush within the frame, these windows provide a sleek, contemporary appearance ideal for modern homes.

Resurgence flush sash windows

Our premium flush sash option combines traditional aesthetics with cutting-edge thermal performance, perfect for period properties.

Sliding sash windows

These vertical-sliding windows replicate the classic Georgian and Victorian style whilst incorporating modern energy efficiency.

Bay and bow windows

These projecting window styles add character and extra interior space whilst flooding rooms with natural light.

Tilt and turn windows

These versatile windows can either tilt inward from the top for ventilation or swing fully open for easy cleaning and maximum airflow.

Aluminium windows

Aluminium frames offer a sleek, contemporary aesthetic with slim profiles that maximise glass area and natural light. These powder-coated frames are available in various colours including our popular Chartwell Green and sophisticated Grey finishes, making them ideal for modern properties and contemporary extensions.

Aluminium casement windows

Clean lines and minimal frame visibility create a striking modern appearance whilst maintaining excellent thermal performance.

Aluminium flush sash windows

The ultimate in contemporary design, these windows sit perfectly flush with the frame for an ultra-modern aesthetic.

Frequently Asked Questions

Will double glazing work in a listed building? Listed buildings require local authority consent for window replacement. We can advise on sympathetic solutions that respect your property’s heritage whilst improving energy efficiency.

How long do modern double glazing windows last? Quality uPVC windows can last up to 35 years, whilst aluminium windows often exceed this with proper maintenance. All our installations come with comprehensive 10-year insurance-backed guarantees.

Do I need a FENSA certificate for replacement windows? Yes, replacement windows must comply with building regulations. As FENSA-approved installers, we provide certificates for all installations, ensuring full compliance and adding value for future sales.

What’s the best type of double glazing for period properties? This depends on your property’s style and any conservation restrictions. Our sliding sash windows and Resurgence flush sash options are specifically designed to complement traditional architecture whilst providing modern thermal efficiency.

Who are Unique Glazing?

We are a family-run business with over two decades of experience manufacturing and installing premium windows, doors and glazed extensions across the South East. From our 6,000 sq ft factory facility, we produce over 400 window profiles weekly, ensuring average lead times of just three weeks for standard installations.

Our comprehensive range includes casement windows, flush sash windows, sliding sash windows, bay and bow windows, plus entrance doors, French doors, bifold doors and conservatories. As FENSA-approved installers and Liniar-approved fabricators with GGFi membership, we provide insurance-backed 10-year guarantees on all installations.

Operating throughout Berkshire, London, Surrey, Oxfordshire and beyond, we’re committed to delivering outstanding quality with competitive pricing and expert customer service.

Ready to discover how much value double glazing could add to your home? Call us on 0800 193 2425 or email sales@uniqueglazing.co.uk for your free, no-obligation consultation.