Leading trade and commercial fabricator Astraseal and spacer bar specialists Technoform Glass Insulation (TGI®) are celebrating a remarkable manufacturing achievement.

In less than five years, TGI has supplied Astraseal with over one million metres of warm edge spacer bar. If laid out flat in a straight line, the 1.2 million metres would equate to approximately 750 miles in length – or from Astraseal’s HQ in Wellingborough, all the way to Venice.

Astraseal’s continued success has meant their orders of TGI®-Spacer have grown every single year, with an average year-on-year increase of 11%. The firm, which specialises in a full range of glazing products across uPVC and aluminium, currently produces over 3,000 sealed units every week.

“Our sealed unit manufacture makes up a vital and successful part of our business, allowing us to ensure a quality product and control our entire supply chain, delivering turnarounds that exceed customer expectations,” comments Colin Stanley, Operations Director at Astraseal.

“Reaching this milestone with our order quantities increasing year-on-year, shows not only how fast our IGU manufacture has grown but also the high regard our products and services are held in. We achieve this through constantly investing in our business to deliver a greater overall service for our customers. That includes investing in new machinery, greater facilities and high-specification components from incredible brands like TGI.”

In recent months, Astraseal has made several high-profile investments to bolster its sealed unit production. The firm purchased a brand-new bar bender which can bend aluminium, steel or warm edge spacer every 28 seconds. This means Astraseal can bend an impressive 1,000 bars on a single nine-hour shift. They have also purchased an intelligent desiccant filler which brings ultimate precision to Astraseal’s operation.

David Kimberley, Product Manager at TGI comments: “We would like to congratulate Astraseal on this fantastic achievement. It’s great to see our products helping one of the industry’s most proactive and respected fabricators grow from strength to strength. We anticipate further success in our partnership together, as we rapidly approach two million metres.”

With one of the biggest portfolios in the industry, Astraseal has built a strong reputation for high-quality aluminium and uPVC products including windows, doors and conservatories. For over 30-years, operating from Wellingborough, Northamptonshire, Astraseal’s ethos has been to offer exceptional products with customer service that goes above and beyond.

For more information call Astraseal on 01933 227233 or visit