About Us

With the UK’s widest selection of timber window components and accessories, Reddiseals Limited has been a trusted supplier to the joinery industry for over three decades. Established in 1987, we specialise in high-quality sash window solutions, offering an extensive range of components for the restoration and renovation of traditional box sash windows, as well as spiral balances and associated sash window furniture.

In addition to sash windows, Reddiseals also provides a full suite of products tailored for timber casement windows. Our diverse selection, available in various styles and finishes, ensures that we offer the best combination of quality, choice, and value for money.

We pride ourselves on fast and efficient service. We know how important it is to have what you need, when you need it. That’s why we offer next-day delivery across the UK on our entire range, so you can keep your jobs moving without delay. For joiners working internationally, we ship worldwide using UPS, making sure you get the same level of reliable service no matter where you’re based.

At Reddiseals, we are committed to staying ahead of industry trends. We continually expand our range with innovative solutions that support the craftsmanship of tradesmen, joiners, carpenters, and architects across the globe.

We take great pride in our service and long-standing dedication to the woodworking industry. As proud members of the British Woodworking Federation, we uphold the highest standards of professionalism and quality. Our operations are governed by a robust ISO 9001-accredited quality management system, ensuring consistency and excellence in everything we do.