Conserv-A-Tech has completed a flat-roof extension featuring Sheerline Bespoke’s S1 roof lantern and flat roof system, showcasing the strength of the long-standing partnership between the two companies.

According to Conserv-A-Tech, the flat roof project, which features a 3,000mm x 1,670mm S1 lantern in anthracite grey with Ambi Sunshade Blue Low E glass installed at a 25° pitch, demonstrates the premium performance and installer-friendly engineering the Stevenage firm has come to rely on from Sheerline Bespoke.

For Conserv-A-Tech managing director, Eric Knappett, the S1 remains the go-to choice for roof lanterns on high-performance projects.

“On this installation, as with many others, we chose the S1 Lantern because it delivers the perfect balance between cutting-edge thermal performance and sleek architectural design,” Eric explained.

“From the moment we unbox the components, it’s clear why the S1 has become a leading choice in high performance lanterns. We’ve tried the rest and undoubtedly this is the best and we are proud to promote it across our projects.”

The flat-roof extension presented several technical considerations, but the S1’s precision-engineered design helped simplify the build.

“The S1 is incredibly installer-friendly,” Eric said. “It eliminates the big issues we see with alternative lanterns on the market, like future glass slippage, drip-end distortion, and even drop-offs. Knowing the product won’t create problems further down the line is a major advantage for us and for the homeowner.”

The project combined the S1 with Sheerline Bespoke’s flat roof system, a pairing that created a clean, contemporary look while delivering exceptional thermal performance. The Ambi Sunshade Blue Low E glass provided the homeowner with effective solar control, ensuring comfort throughout the year while enhancing the modern appearance of the extension. Homeowner feedback was equally positive.

“They were very impressed with the progress and the speed our team progressed the installation,” Eric added. “They were delighted with the finished result, particularly the S1 roof lantern, which really lifts the whole space.”

For Eric, the technical excellence of the products is matched by the service he receives from the team at Sheerline Bespoke.

“I’ve known Chris Baron (operations director) and Chris Cooke (commercial director) for many years, and their knowledge and commitment to any design is what sets them apart. The personal communication and the speed of response to any technical help we need is why I’ve stuck with them for many years.”

Chris Baron at Sheerline Bespoke, said: “Their craftsmanship and attention to detail make Eric and the Conserv-A-Tech team the perfect partner for showcasing the performance and design benefits of our S1 Roof Lantern and Flat Roof System.

“We’re delighted to support them on projects like this and look forward to helping them deliver more premium solutions throughout 2026 and beyond.”