We Accept Card Payments!
As specialists in construction and groundwork, we offer a wide range of professional services for both residential and commercial clients and can assist with all types of projects. Based in Carmarthen, we are ideally positioned to serve clients across the whole of Wales. As an independent family-run business, we aim to offer our clients a completely tailored and personal service with unparalleled levels of attention to detail and client support. Whether you need building work, earthworks, drainage, roofing or anything in between, call us to find out how we can help with your project.
We are proud local Welsh builders with over 30 years of experience delivering high-quality craftsmanship across the region. We understand the unique character of local homes and businesses. Whether you’re planning a new build, renovation or extension, we bring expert skills and a personal touch to every project. Our team is fully qualified, insured and committed to excellence. We use top-grade materials and work efficiently to meet deadlines. Customer satisfaction is at the heart of what we do, and we always communicate clearly, keeping you informed at every stage. From traditional stonework to modern designs, we tailor our services to suit your needs. We also prioritise sustainability, using eco-friendly methods where possible. With deep roots in the community, we take pride in helping local homeowners and businesses create spaces they love. Get in touch today to discuss your project with us!
We provide a comprehensive range of building and construction services, all completed to the highest standard. Our skilled workforce ensures every project is delivered on time and within budget, no matter the scale. We are flexible, working around your schedule to minimise disruption, and we accept card payments for added convenience. From groundwork to full-scale construction, we handle every aspect with precision and expertise. Whether you need a new build, refurbishment, or structural support, we have the knowledge and equipment to get the job done efficiently. Our services include:
Groundwork & Foundations – Excavation, site clearance, underpinning, and raft foundations.
Construction & Structural Work – New builds, roofing, retaining walls, and timber frame installation.
Specialist Services – Diamond drilling, steel fabrications, pile driving, and percolation testing.
Drainage Solutions – Sustainable drainage systems, soakaways, and general drainage services.
To find out how we can help to kickstart your project, get in touch for expert advice and to arrange a free estimate. We offer our services across the length and breadth of Wales, including Carmarthen, Pembrokeshire and the surrounding region. Card payments accepted.
Excellent company. Both professional and friendly. All work carried out had been done to a very high standard at a very good price. I would highly recommend their services and I will continue to use them for any alterations inside and outside of my home.
We’re delighted with the work carried out by Castle Construction at our property which included drainage work, laying a large concrete slab & creating an en suite. Work was completed quickly to a good standard & at very reasonable cost by great guys who were always helpful and a pleasure to have around. We can recommend them wholeheartedly.
I hired Castle Construction to carry out Landscaping and Construction work to my front garden.
The work was completed to a very high standard and Martin and his employees were very professional throughout the work. I can definitely recommend them to anybody looking any building work in the future.
