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We are committed to maximising success for our customers in every commercial project we deliver

Based on our history of proven delivery on large and complex office projects, along with our continually innovative and collaborative approaches to each project’s challenges, John Sisk & Son’s experience in the commercial building sector has always offered confidence to our clients.

In leading commercial cities around Ireland and the UK (Dublin, Cork, London, Manchester, Birmingham) our ability to work in tight locations has enabled us to deliver an extensive range of iconic offices and mixed-use developments, and we are recognised by our global customers as world leaders in safe and effective delivery.

Our status as Ireland’s long-term number one provider of construction services has been extensively earned through decades of operations across Ireland, the UK and mainland Europe. Ever since our earliest beginnings in 1859, John Sisk & Son has always trusted in the skills and vision of our people to drive our relentless spirit of innovation.


Santander, Milton Keynes

We are committed to maximising success for our customers in every commercial project

Royal Academy of Arts (RA), London

Royal Academy of Arts (RA) London


50 Bolsover Street, London

Other Commercial Case Studies

Air Street, London

70 St Stephen's Green

Wembley Arena

Station Building 2, Dublin

Arthur Cox

Hilton Hotel

One Commercial Street, London, UK

Contact us and see how we can work together

Image of Ajaz Shafi
Ajaz Shafi

Chief Operating Officer (COO), UK Construction and Civil Engineering

Ajaz is a civil engineer with over 30 years’ experience working for major contracting organisations in the UK, Hong Kong, India and the Middle East delivering a range of challenging and complex infrastructure and building projects.

Ajaz joined Sisk in 2013, initially managing the company’s UAE division before taking up the position as Managing Director for the UK South business where he drove the growth of that business in London, Birmingham, and the Ox-Cam arc.