Replacement Double Glazed Units

UK Sealed Units Verified independent store

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Replace the glass - not the whole window. Our made-to-measure double glazed units restore clarity, insulation, and performance - at a fraction of the cost of full window replacement. Manufactured in-house at our West London factory using premium materials, every unit is built to last and backed by a 25-year warranty. Why Choose Our Sealed Units? 🇬🇧 UK Manufactured Every unit is built in-house to strict UK quality standards, giving us full control over consistency and performance. 🛡 25-Year Warranty All sealed units come with an industry-leading 25-year warranty - giving you long-term peace of mind. 📏 Made to Your Exact Size Every unit is manufactured to your precise millimetre measurements to ensure a perfect fit. 🔥 Superior Thermal Efficiency Argon gas-filled units with Low-E coating help retain heat, reduce energy bills, and improve comfort. 🔇 Noise Reduction Enjoy a quieter indoor environment by reducing outside noise. 💧 Condensation Prevention Advanced sealing technology eliminates internal misting and condensation. Glass & Build Specification Built to Match Any Existing Unit All of our double glazed units are manufactured using high-performance materials designed for durability, insulation, and long-term reliability. We offer complete flexibility to match your exact requirements - whether you're replacing standard glass or matching an existing specialist unit. Glazing Type Our sealed units are manufactured using two panes of high-quality glass, bonded together with a warm edge spacer to improve insulation and reduce condensation. Glass Thickness Options The most common glass thickness is 4mm, but we can manufacture units using glass thicknesses from 4mm up to 10mm, depending on your requirements. Glass Patterns & Styles We can match any glass pattern required - ideal for replacing existing decorative or privacy glass without changing the look of your property.If you're unsure of the pattern, simply send us a photo - we'll identify it for you. Glass Tint Options We can supply units in any tint required, allowing you to match existing windows or achieve a specific appearance. Clear Glass Blue Tint Grey Tint Satin/Frosted Tint Glass Types Available We manufacture units using a wide range of glass types to suit both residential and trade applications.✔ Standard Float Glass✔ Toughened Safety Glass✔ Laminated Safety Glass✔ Acoustic Glass✔ Low-E Energy Efficient Glass✔ Obscure & Privacy Glass✔ Specialist Glass Types on RequestNot sure what type of glass you need? Send us a photo with your quote - we'll identify it and confirm the correct specification before production. Sizing Made to measure in millimetres - any size, any shape. Compliance Manufactured to comply with UK Building Regulations. Warranty 25-year manufacturer's warranty on all sealed units. Suitable For 🪟Window Replacements 🚪Door Panels 🏠Residential Homes 🏢Commercial Projects 🏛️Heritage & Conservation 🔨Trade & Contractors 🔍 How to Measure for a Replacement Unit To order the correct replacement unit, measure the existing glass unit - not the frame opening. ✔ Measure the width and height of the existing glass in millimetres ✔ Measure the overall thickness of the sealed unit - not just one pane of glass (typically 24mm or 28mm) ✔ Note the glass type (clear, frosted, tinted) and any special requirements ✔ Double-check all measurements before ordering If possible, you may remove the unit to measure it more accurately - but this is not always required. Not sure? Submit your measurements and a photo using the "Get Your Free Custom Quote" button - our team will check everything and confirm the correct specification before production begins. Frequently Asked Questions How do I know what size to order?Measure the existing glass pane directly - width, height, and thickness in millimetres. If you're unsure, send us your measurements and a photo and we'll advise the correct size. Can you help check my measurements before I order? Yes - simply submit a quote request with your measurements and a photo of your existing unit. Include any questions in the 'Additional Details' section, and our team will check everything and confirm the correct specification before production begins. What thickness should I order?The most common sizes are 24mm and 28mm overall unit thickness. Measure your existing unit or check your frame rebate depth to confirm. Can I get frosted or tinted glass?Yes - we offer clear, blue tint, grey tint, satin/frosted, and self-cleaning glass options. Specify your preference when requesting a quote. Are the units compliant with UK Building Regulations?Yes - all units are manufactured to comply with current UK Building Regulations. What warranty do I get?Every sealed unit comes with a 25-year manufacturer's warranty as standard. How quickly will my order be ready?We offer fast turnaround times. Contact us with your specifications for an accurate lead time. Can you supply trade quantities?Yes - we regularly supply glaziers, window fitters, and contractors. Contact us to discuss trade pricing and volume orders. Send us your dimensions, thickness, and glass type - we'll come back with a competitive quote, fast. Get a Custom Quote Show more