Barn Conversion – High performance Windows

The Brief:

To install top quality, oak framed, high performance windows in a 300 year old barn to ensure maximum light whilst not tampering with the vintage look of the property.

What We Did:

We had to remove the old rotting frames, being careful not to damage the elaborate brick work of the barn.

We manufactured made-to measure frames to ensure the perfect fit – to eliminate any chance of drafts or condensation and to maximise the natural light.

We treated the frames with a special oil and wax finish to seal and weather proof them and protect them from UV damage.

We installed the windows with the minimum of fuss and took away the old windows from the site.


The customer was delighted with the results and our service.

“I would thoroughly recommend Onyx Joinery – Philip and Lee were so professional from the start. The windows are beautiful and very high quality” Mr. S of Oxfordshire