Case Study - Blairs Window & Doors

Established in 1913, Blairs Window & Doors designs and manufactures timber, aluminium and PVCu products across Scotland. After more than three decades of service, their ageing Harbs machine had reached the end of its useful life, and the business needed a reliable, high-capacity replacement to meet growing production demands. Following a thorough review of the market, Blairs selected IWM and the Soukup Wizard 4L CNC machining centre — a decision that has delivered measurable gains in both productivity and reliability.

Blairs Window & Doors had been running the same Harbs machine for 36 years. While that longevity speaks to the robustness of the original investment, the machine had inevitably become a bottleneck — limiting throughput and posing an increasing reliability risk for a business that manufactures across timber, aluminium and PVCu product ranges throughout Scotland. The decision to replace it was not taken lightly, and Blairs undertook a thorough review of major machinery manufacturers before committing to a new solution.

After researching the available options, Blairs specified the Soukup Wizard 4L CNC machining centre through IWM. The Wizard 4L is a twin-unit configuration comprising two independent machines — one for tenoning and one for profiling — allowing different operations to run simultaneously and giving the business greater flexibility across their window production programme. To give Blairs full confidence before delivery, a pre-delivery inspection was carried out at the Soukup factory, where the team were able to see the machine running and verify it met their requirements before it arrived on site.

Since installation, productivity and reliability have both improved significantly, as confirmed by Joe Boyd at Blairs. In practical terms, the Wizard 4L is capable of producing 30 to 40 one-leaf windows per shift using traditional milling methods, rising to up to 60 knock-down windows per shift — a meaningful step up in output that gives Blairs the capacity headroom to grow. The pre-delivery factory inspection proved its value, reinforcing the team's confidence in the machine from day one.