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A modern red-brick detached house with a gabled roof and a spacious driveway surrounded by greenery.

Pontypridd builders with five years' building experience

Direct contact from first quote to final handover. Core specialists in extensions, loft conversions and resin driveways. Larger projects and smaller repairs handled.

How the first conversation usually goes

Call and talk it through

Tell us what you need, what is there now and what you want the property to do better.

We size up the job

We look at the space, access and condition so the quote reflects the work properly.

Work starts with a plan

Once agreed, we schedule the build and keep communication direct from start to finish.

Space-making, structural and driveway work

Bright attic room with wooden flooring, large windows, and a doorway leading to stairs.

Dormer Loft Conversions

Create fuller headroom and floor space in the roof with a dormer conversion built for a proper everyday room.

Modern kitchen extension with large sliding glass doors opening onto a paved courtyard, surrounded by brick houses and greenery.

Side Return Extensions

Widen a cramped ground floor by making use of the side return, with light planned in from the start.

Bright loft space with a skylight, light wood flooring, and a small desk area, leading to a hallway with a bedroom at the end.

Loft Conversions

Turn wasted roof space into a proper room with loft work shaped around headroom, stairs, insulation and fire safety.

Close-up of a sliding glass door leading to a modern patio with brick and stucco walls.

Building work that solves real problems at home

If your house feels too tight, too dated, or full of awkward corners, you do not always need to move. We carry out building work in Pontypridd and across Cardiff and the surrounding towns, helping homeowners add space, improve layouts, and sort the jobs that have been put off for too long.
Our main specialisms are house extensions, loft conversions, and resin driveways, and we keep the conversation direct from the first quote through to the finished job.

Our reviews

Read our reviews on Yell

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One builder for major projects and smaller jobs

Some jobs need months of planning. Others are smaller but still need doing properly. We take on both. That means you can come to us for a full extension, a loft project, structural changes, a driveway rebuild, a resin overlay or a targeted repair. The work is different, but our approach stays the same: look closely at the property, scope the job honestly and keep you informed so you know what is happening and what comes next.

Open-plan living area with wooden floors, a dining table, modern kitchen, potted plants, and a grey sofa.

What you get when you bring us in

Clear project oversight

The same small team stays involved from the quote to the final finish.

Work matched to the job

From major builds to local repairs, we take on work at the right scale.

Driveway options explained

We talk through full resin builds, bound finishes and overlays clearly.

A modern red-brick detached house with a gabled roof and a spacious driveway surrounded by greenery.

Speak to us about the work you need done

Call us to discuss extensions, lofts, driveways or repairs and we will help you work out the sensible next step.

Contact us

JCW Design & Build Limited

2 Oakland Terrace, Cilfynydd, Pontypridd CF37 4HB, UK

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    JCW DESIGN & BUILD LIMITED, registered as a limited company in England and Wales under company number 12419672. Registered Company Address: 42 Oakland Terrace, Cilfynydd, Pontypridd, United Kingdom, CF37 4HB.

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