Cardiff · South Wales · Est. 20+ Years
Cardiff's Trusted Builder.
Residential and commercial construction across Cardiff and South Wales. Two decades of craftsmanship. Every detail done right.
Trusted by Local Customers Over 20 Years
What You Need To Know About R&Z Construction
R&Z Construction has been delivering exceptional builds across Cardiff and South Wales for over two decades. Residential at heart, expanding into commercial. Every project is treated with the same care and precision.
See the Difference We Make
Residential extensions, full renovations, commercial builds. Drag the slider to reveal the transformation.
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Newport · South Wales
Single Storey Rear Extension
Full single storey rear extension adding an open-plan kitchen and dining space. Foundations, blockwork, roof, windows and full internal finish delivered as one package.
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Penarth · South Wales
Commercial Fit-Out & Refurbishment
Full commercial refurbishment including new partitioning, suspended ceilings, M&E works and bespoke reception fit-out. Handed over on time with minimal disruption to the client.
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Cardiff · South Wales
Full Home Renovation
Complete residential renovation covering kitchen, bathrooms, flooring and full redecoration throughout. Coordinated across all trades from start to finish with zero sub-contractor headaches for the client.
What Services We Offer For You
From new builds to full renovations, we handle every stage of your project across Cardiff and South Wales. Quality construction, fixed prices, no surprises.
New Builds
From foundations to final finish, we deliver complete residential and commercial new builds across Cardiff and South Wales. Every project is managed end-to-end with precision and care.
Full Renovations
Transforming existing properties from the ground up. Whether it's a full gut-and-rebuild or a whole-house modernisation, we handle structural, mechanical and decorative works in one coordinated project.
Loft Conversions
Unlock the unused space above you. We design and build dormer, hip-to-gable and Velux loft conversions that add real living space and significant value to your home — with minimal disruption.
House Extensions
Single storey, double storey, side return or wrap-around — we plan and build extensions that feel like a natural part of your home. Fully managed from planning permission through to handover.
Commercial Builds
Expanding into the commercial sector with the same exacting standards that define our residential work. Office fit-outs, retail units, and light industrial builds delivered on time and within budget.
Project Management
Not just builders — we manage the full construction process. Trades coordination, material procurement, building control, and client communication handled by Reza personally on every project.
Built on Results, Trusted by Clients
Two decades in the industry means we’ve seen every challenge a build can throw at you. We show up, we deliver, and we stand by our work long after the last brick is laid.
Sarah M.
Homeowner, Cardiff
“R&Z handled our full home renovation from start to finish. The standard of work was outstanding and Reza kept us updated every step of the way.”
James T.
Landlord, Newport
“Professional, reliable and great value. They completed our commercial fit-out on time and within budget. Would recommend without hesitation.””
Contact Us For a Quote
Finance & Risk Transformation
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Our Partners
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Have A Project Idea In Your Mind?
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