Diamond Window Systems has celebrated 25 years with Eurocell.

Based in Kirkby-in-Ashfield and founded by managing director, Richard Lee, in January 1998, Diamond Window Systems began as a small family operation with just two people. Today, it has grown into a manufacturer of PVC-U windows, doors, and conservatory roofs for the trade and DIY markets, employing a team of 20.

Richard commented. “We’ve always focused on providing trade-quality products and service to both installers and homeowners alike. It’s about giving customers the best of both worlds – professional standards with a personal touch.”

Diamond Window Systems became an official Eurocell fabricator in 2000.

“It felt like the natural fit,” said Richard. “Eurocell understood what we were trying to achieve, a dependable supply chain, consistent product quality, and a partner we could trust. That trust has only deepened over the years.”

According to Richard, one of Diamond Window Systems’ greatest strengths is its people. The close-knit team includes several family members and long-serving colleagues, with some having been part of the business for more than two decades.

“We’ve got team members who’ve been with us 25 or 26 years,” said Richard. “My wife, sister-in-law, and son all work here too. It really is a family operation in every sense.”

That sense of loyalty and unity has been key to the company’s longevity. “We’ve faced ups and downs, but we’ve always pulled together. That’s what makes it special – we’ve grown by staying steady, reliable, and true to who we are.”

In recent years, Diamond Window Systems has invested in new machinery and expanded its manufacturing capabilities under a four-year supply agreement with Eurocell. Looking ahead, the company is exploring opportunities in aluminium fabrication, while maintaining its focus on steady, sustainable growth.