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During 2024 we celebrated our Centenary Year, click the button to see what we have been up to and to view the full town flyover video.

Building quality

since 1924

ABOUT US

A legacy of craftsmanship and innovation.

We believe high quality is never an accident. With nearly a century of experience, our roots run deep in Guernsey. Many of our projects are key to the island’s culture and history. From the Island War Memorial in 1926 to award-winning historical building projects like St. James Concert and Assembly Hall and The Island Archive at the former St Barnabas Church, our work stands the test of time.

We are a modern business with traditional values. Our highly skilled team and first-class sub-contractors ensure premium solutions are crafted for a diverse portfolio. Our honest and transparent approach makes us the first choice for new build and refurbishment of residential, commercial and heritage building projects.

Trust us for unparalleled craftsmanship, tailored solutions, and a lasting legacy of quality.

Team

David Duquemin BSc (Hons) MRICS FCIOB
David Duquemin BSc (Hons) MRICS FCIOB

Chairman

Darren du Jardin 
MCIOB
Darren du Jardin
MCIOB

Managing Director

Richard Smith BSc (Hons) MRICS ACI Arb
Richard Smith BSc (Hons) MRICS ACI Arb

Commercial Director

Meet the skilled and dedicated team behind C.A. Duquemin who bring a wealth of experience and passion to every project we undertake.

Guernsey to Sark Swim

Guernsey to Sark Swim

9 Aug 2025

Jack Duquemin swims from Guernsey to Sark raising over £1600.00 for Charity.

Marathon Victory

Marathon Victory

11 Apr 2025

Victory at the Guernsey Marathon – Construction Cup Champions!

Board changes for 2025

Board changes for 2025

16 Dec 2024

From January 2025 David Duquemin will become Chairman with Darren du Jardin Managing Director.

News

Featured Projects

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Thelema

Le Hurel


 

Les Prevosts

Construction

Our team’s experience, expertise and pride ensure your vision is built to the highest quality.

Project

Management

Our full-service and trusted project management approach ensures transparency, reliability, and a best value outcome.

Planning

Meticulous planning forms the foundation of successful projects. Our long-lasting relationships with architects, surveyors and other building professionals leads to seamless execution and outstanding results.

EXCEPTIONAL SERVICE

Building quality 
since 1924.

Join us in celebrating a century of building quality in Guernsey.
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