01628 481786 enquiries@pjaw.co.uk


From it’s early beginnings in the 1950’sPJA Williams has always undertaken extension and alteration projects, these can yield dramatic transformations to properties providing additional and better use of space as well as upgrading the services to modern standards, all at a relatively modest cost compared to a rebuild.

In common with our new build homes we offer the same level and quality of fit out, including the same options on High Tech and Green technology systems, which now even include car charging facilities! We believe with this strong and long standing track record we are able to offer our clients something extra.

By their nature there are different challenges when undertaking alteration works, compared to new builds, particularly on older properties. This is due mainly to the hidden issues which no initial survey could detect.

However, we have the in-house skills and experience gained over many years, this allows us to anticipate many of these the issues adapting the designs as work progresses.

Drawing on our skills we are able to do this in the most effective way to minimise effects on both the design and cost.

Recent Extension & Alteration Projects

Brinfield – Henley-on-Thames

Brinfield – Henley-on-Thames

Major conversion and extension of an existing garage block to create a Gymnasium and Changing area, Galleried living area with specialised Music/Media room. Wooden floors throughout.Bespoke Oak framed folding doors leading to swimming pool with landscaped remodelling...

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Latchmoor Way – Gerrards Cross

Latchmoor Way – Gerrards Cross

The project was a 1950's 3 bedroom detached house,which had some alterations over the years however was in serious need of major modernisation. Our client had recently purchased the property and wanted improved accommodation and complete updating. The key requirements...

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P.J.A Williams & Sons Construction Ltd
87 Newfield Gardens

T: 01628 481786
M: 07969 779428
E: alan@pjaw.co.uk