At Fitter Windows, we understand that when it comes to enhancing your home’s appearance, it’s not just about the frames – what you see through them matters just as much. Whether you’re investing in new double glazed windows, upgrading your uPVC windows, or considering aluminium windows, the quality of glass you choose plays a crucial role in how vibrant and clear your views will be. That’s why we’re excited to share the secrets of Pilkington Optiwhite, a premium low-iron glass that can truly transform the way you experience natural light and outdoor scenery from your home.
Why Low-Iron Glass Matters for Your Double Glazing
Most standard glass products naturally contain iron, which gives them a slight green tint. While this is subtle, it can dull the look of everything you see through your window. If you’re fitting double glazing, especially in prominent features like uPVC sash windows, French windows, or tilt and turn windows, the greenish haze can subtly alter the colours of your garden, sky, or cityscape. This is where Pilkington Optiwhite comes into play.
Pilkington Optiwhite is a high-performance low-iron glass that has had much of the iron removed during manufacture. The result is a crystal-clear, ultra-white glass that lets through more natural light, with less colour distortion. This exceptional clarity means your double glazed windows offer not only better aesthetics but a richer and brighter view outside, making your home feel more open and inviting.
As experts in fitting uPVC casement windows, secondary glazing systems, and aluminium frames, we often recommend Pilkington Optiwhite for those looking to maximise light and clarity. If you want your home’s windows to complement your décor and boost natural daylight, this glass choice can make a noticeable difference. Curious about how Pilkington Optiwhite could elevate your views? Get in touch with our team today for personalised advice.

How Pilkington Optiwhite Enhances Your Home’s Features
Imagine your new French windows charmingly opening onto your garden. Now imagine that same beautiful scene with colours that pop and light that floods into your interior, thanks to the ultra-clear Pilkington Optiwhite glass. Unlike standard glass, which can cast a slight tint over the landscape, Pilkington Optiwhite provides a truer, more authentic colour rendition, making the blooms in your flowerbeds look more vibrant and the sky a more brilliant blue.
When used in tilt and turn windows or uPVC sash windows, the advantage is equally clear. These types of windows are often installed in living rooms, kitchens, or extensions where you spend a lot of time. The increased light transmission from Pilkington Optiwhite creates a bright and uplifting atmosphere, subtly enhancing your home’s overall ambiance. This clarity also benefits secondary glazing when you want to preserve period window details without compromising on view quality.
Beyond aesthetics, Pilkington Optiwhite also pairs well with energy-efficient double glazing units. It maintains excellent thermal performance without sacrificing the crisp, clear finish that your home deserves. Whether you’re upgrading for energy savings, noise reduction, or sheer visual appeal, incorporating this low-iron glass will help your investment feel even more worthwhile. Ready to see what your home could look like with this superior glass? Head to our online quote-building engine to get your free quote in seconds.

Why Choose Fitter Windows for Your Pilkington Optiwhite Installation
With so many options available, picking the right glass and window combination can feel overwhelming. At Fitter Windows, we bring years of experience in fitting top-quality double glazed windows, including uPVC casement windows, aluminium windows, and bespoke secondary glazing. We pride ourselves on helping B2C customers across the UK find the perfect match for their homes, with professionalism and care in every project.
When you choose us for your Pilkington Optiwhite window installation, you benefit from expert guidance on product choices, precise fitting using industry-best practices, and a focus on customer satisfaction. We work closely with you to select the best frame material for your style—whether that’s low-maintenance uPVC windows that offer excellent durability or sleek aluminium windows with a modern finish—and combine these with the crystal-clear beauty of Pilkington Optiwhite glass to truly elevate your home’s appearance.
Our team also understands the importance of compliance with building regulations and local planning requirements. From minor replacement jobs to full window upgrades involving French windows or uPVC sash windows, we ensure that every installation meets the highest standards, giving you peace of mind alongside stunning views.
Ready to enhance your home with the clarity of Pilkington Optiwhite? Look on our website to learn more about how our window fitting services can transform your property, or get in touch with our friendly team today for a no-obligation consultation.

Discover the Difference with Pilkington Optiwhite Today
If you want your double glazing project to stand out from the ordinary, choosing Pilkington Optiwhite glass is a simple yet powerful upgrade. By cutting down on green tint and boosting light transmission, this low-iron glass helps you enjoy your surroundings in richer detail and unparalleled brightness. Whether you prioritise classic uPVC sash windows, elegant French windows, or practical secondary glazing, pairing your frames with Pilkington Optiwhite will elevate your views and add value to your home.
At Fitter Windows, we’re passionate about delivering exceptional double glazed windows that combine beauty, functionality, and energy efficiency. Get in touch with us today to discuss your next window project and find out how Pilkington Optiwhite can make your views pop like never before. Request a quote or arrange a site visit with our friendly experts. We look forward to helping you open your home to the world in the clearest way possible.
Categories: Double Glazing, Updates, Windows, Windows & Doors
Tags: double glazing, windows