5 Ways K Design and Build can improve your home

We recently completed very different extensions to the rear of two homes.
The first involved knocking through a wall to expand the kitchen/breakfast area on the ground floor, while upstairs we built an additional bedroom with en-suite bathroom. The project included the fitting of a new kitchen as well as the plastering and skimming of all internal walls and fitting of skirting boards throughout.
The second extension created additional dining space to the existing kitchen/dining area, with Velux windows on either side of a vaulted roof adding to the open feel of the new space. A bespoke bi-folding door in the corner created superb light and flow, with the door sill fitted to sit flush with the patio and decking to ensure a smooth, no-step exit into the garden.

We like a challenge, which is exactly what we got with this roof on an internal loft conversion. It was a hip roof ­– meaning all sides slope down towards the ground – but with a very rare intersection point, with two valleys running off it, meaning a lot of complex joint. A true test of craftsmanship and concentration!


It’s one thing to fit a new staircase, it’s quite another to change position and angle of the new staircase to allow extra space to be added to one of the bedrooms. We did this by fitting the new staircase with a 90-degree kite – in other words, the stairs turn at a right angle. Just another example of our versatility.


Roof spaces come in all shapes and sizes, so every loft conversion is different, as we discovered with two recent jobs. The largest [1] involved adding three bedrooms and a bathroom to a property as well as knocking down an internal wall to create a free-flowing feel from the kitchen into the rest of the living space.
The smaller conversion was equally challenging, as it involved installing a cranked beam to support the building of protruding dormer windows on a pitched roof [2]. By carrying out thermal calculations, we were able to use Celotex solid insulation – fitted above the rafters as opposed to the underside, as with standard soft insulation.

We don’t just build, we repair, and the leak on this flat-roof chimney was particularly tricky to fix. We used single-ply roofing membranes, which are more resistant to weather and come with a 15-year guarantee. In repointing the chimney itself, we used the weather-struck joint technique rather than bucket-handle pointing, as the finish – sloped rather than curved – is more weather-resistant. For extra protection, we also replarged – finished covering the surface with mortar – which supports the chimney pots and seals over the top of the chimney outer edges to create the weather seal.

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