We are Marquis & Sons Construction

Marquis & Sons Construction is a trusted, family-run building company based in Cardiff, proudly serving South Wales with over 50 years of combined experience in the construction trade.

We take on all aspects of building work, including domestic and commercial projects, renovations, extensions, landscaping, insurance work and full project management. Whether it’s a single-room upgrade or a large-scale development, our commitment is the same – every project matters.

Much of our work comes through referrals and returning clients who value our honest advice, clear communication and quality craftsmanship. At Marquis & Sons, we don’t just build – we deliver work you can rely on, from a team that takes pride in every detail.