Our goal is to change the modern world and create sustainable & nature friendly energy solutions for future generations.

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About Us

Since 1974, our family owned company has set out to offer a complete home improvement service throughout Lincolnshire and surrounding areas. We manufacture products of exceptional quality and are renowned for choice, excellent customer service and value for money.

Our Vision

Being one of the UK’s largest window and door manufacturers, Starglaze understands the importance of our role in sustainability. From the products we manufacture to our deliveries, we make it our mission to improve our business consistently. We understand that homes across the UK contribute towards 21% of the country’s carbon emissions. Our vision is to insulate homes better, drastically reducing the UK’s carbon footprint.

Our Solutions

We manufacture more energy efficient windows and doors. From recycling sustainable materials to reducing packaging and operational waste, we aim to realise our vision of a greener, brighter future. From uPVC to aluminium and steel, our market leading products have all been manufactured to be highly energy efficient.

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Lower carbon manufacture using recycled materials


Making homes more energy efficient


100% recyclable and widely recycled

Use our energy calculator to find out how much you could save on your energy bills!

Energy Saving Calculator

Use our energy calculator to find out how much you could save on your energy bills!

Our Most Efficient Profiles

Our popular uPVC casement windows are multi-chambered, using double and triple glazing for enhanced thermal efficiency. Allowing you to rely less on central heating with expertly made, A-energy rated windows.

Making the Switch

We are committed to reducing our carbon emissions by switching to renewable and more sustainable energy sources. To achieve this, we manufacture with sustainability in mind and produce home improvements that are energy efficient.

Beyond lowering energy usage, we invest in our manufacturing process, like solar panels, which have already contributed to a 101,105kg carbon offset. Our partners share our commitment to the sustainable fabrication of windows and doors. We are united on all fronts to make the switch.


When our premium quality products reach the end of their long product life, we ensure that they can enjoy life anew through recycling post consumer waste. We support our customers by recovering uPVC, aluminium and steel materials. This way, little to no material ends up in a landfill.

We are doing our bit to lower our carbon footprint through recycling and manufacturing using sustainable materials. New generations of products like ours contribute to a circular economy. Try out our energy saving calculator to see the difference our products make.

View Our Factory

Deceuninck - Recycling uPVC & Circular Recycling Creation

As one of our key supply partners, our relationship with Deceuninck forms a critical part of our sustainability efforts. Aiming to cut CO2 and greenhouse gas emissions from their operations by 2050, we can align with their strategy and continue offering our customers their UK-leading sustainable window and door systems. 

By investing in state-of-the-art technology and low emission single deliveries, we can ensure we continue to deliver sustainable solutions to homeowners and businesses. With their help, we can prevent adding to landfills by reusing 100% of the post-manufacturer and consumer waste they collect during their recycling process.

Smart Architectural Aluminium - Aluminium Window Carbon Footprint

Providing 100% recyclable aluminium systems, Smart Systems are another of Starglaze’s sustainable supply partners. Using responsibly sourced aluminium and a minimal energy recycling process, we can continue to recycle up to 24% of aluminium used within old products. Smart is committed to eco-friendly practices at every stage of their operations, including making their aluminium recycling process energy efficient and reducing consumption. 

To prioritise sustainability, they source green products, invest in renewable energy manufacturing, and continually reduce carbon emissions. In 2018, they fully electrified their factories and added wind turbines for sustainable energy. They also minimise their environmental footprint by reducing chemical usage, implementing cleaner processes, and reusing materials. Additionally, they utilise natural rainwater to conserve water and energy in their manufacturing.

Saint-Gobain - Lower Glass Carbon Manufacture

Saint-Gobain, our glass partner, has committed to achieving net zero carbon emissions by 2050. By 2030, they intend to halve their water usage, cut carbon emissions, and use recyclable materials and packages across their product range.

At Saint-Gobain, they recycle 100% of their glass in-house to reduce post-industrial waste and create an alternative energy source. They also repaired their UK furnaces in 2022 to significantly increase capacity, particularly for their low-carbon glass made from recycled glass and renewable energy. Manufacturing their Planitherm range, they can offer next generation thermal performance by blocking external heat from entering homes.

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