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    • Project Portfolio: Modernizing Concrete Wine Cellar Access

    Project Overview

    • Client: Matt, Residential Renovation

    • Location: Nationwide Supply- London

    • The Problem: A rustic, awkward wooden door covering a rectangular opening above semi-circular concrete steps.

    • The Dio-Met Solution: A bespoke Hinged Glass Floor System with internal "visual masking".

    • Finish: RAL Powder-coated Frame with Back-Painted Glass Borders.

    Semi Circular Concrete Wine Cellar Glass Door
    Semi Circular Concrete Wine Cellar Glass Door

    The Retrofit Challenge: Bridging the Gap Between Square and Round Many underground wine cellars—particularly those with pre-cast concrete liners—feature a rectangular floor opening that transitions into a spiral or semi-circular staircase. Traditional wooden doors are often bulky, difficult to open, and hide the cellar’s character.

    Matt’s project was the perfect candidate for a retrofit glass hatch. By using a rectangular frame, we maximized the structural support on the existing floor joists while using a specialized aesthetic treatment on the glass to maintain the "circular" feel of the cellar below.

    Spiral Wine Cellar Glass Hatch
    Spiral Wine Cellar Glass Hatch

    Technical Expert Insight: Solving the "Concrete Void" Aesthetic

    The most frequent issue when replacing a wooden door with a glass hatch is the visibility of the concrete substrate or "raw" opening edges.] Unlike a new-build where everything is flush, a renovation often reveals untidy masonry. To solve this, we don't just supply a clear piece of glass; we utilize back-painted internal borders. By applying a ceramic frit to the underside of the glass in a semi-circular pattern, we create a "mask" that hides the rectangular concrete corners while framing the circular staircase perfectly. Furthermore, since these concrete cellars can be damp, we ensure all hinges and gas struts are positioned to avoid moisture-trap points, ensuring a smooth "Open-Sesame" operation that lasts for decades without the maintenance required by timber.

    Why Choose Dio-Met for Cellar Renovations?

    • World-Leading Direct Supplier: We manufacture in Sheffield and ship our wine cellar doors nationwide and worldwide.

    • Simple "Competent Person" Install: Our hatches arrive fully assembled. If you can level a frame and secure fixings, you can install a Dio-Met hatch.

    • Bespoke Visual Masking: We tailor the painted borders to suit your specific cellar diameter, hiding any ugly structural gaps.

    Explore More from Dio-Met

    Contact the Specialists Don't settle for a basic wooden trapdoor. Upgrade your home with a world-class glass cellar entrance.