10 Year Guarantee Available
Made In Britain
30+ Years In Business
We'll Match uPVC Window Prices
10 Year Guarantee Available
Made In Britain
30+ Years In Business
We'll Match uPVC Window Prices
Rationel products combine the beauty of timber with the strength and durability of aluminium, delivering exceptional energy efficiency and a stylish, contemporary aesthetic.
Designed in Denmark and precision-manufactured for superior performance, Rationel windows and doors are perfect for modern homes, extensions and sustainable building projects.
With slim frames, natural finishes and outstanding insulation, Rationel brings Scandi simplicity and warmth into every room, while offering a smart, low-maintenance solution for years to come.
Keeps homes warm and comfortable throughout the year, reducing heat loss and helping to lower energy bills
Maximises natural daylight and provides wide, uninterrupted views — perfect for creating bright, modern living spaces
Is engineered to withstand harsh UK weather, ensuring long-lasting durability with no repainting required
Combines responsibly sourced timber with fully recyclable aluminium, offering an eco-friendly window solution without compromising performance
Include robust, high-security locking systems fitted as standard, giving homeowners confidence and peace of mind
Helps to keep homes quieter, making these windows an excellent choice for properties near busy roads, rail lines or urban areas
Designed for modern architecture and extensions with sharp, minimal lines.
Designed to complement cottages, character builds and softer architectural styles.
Every Rationel product is made-to-measure for a seamless result.
Want to see products up close, choose finishes and talk through your options face-to-face?
Visit our Peterborough showroom, explore full-size displays, view materials, and speak with our glazing experts. book your visit in advance or just drop in during opening hours.
Planning your next home improvement or self-build projects?
Get in touch with the team today on 01733 555040
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