Builders Penarth

ABC Wales are your local specialist builders based in Penarth.

We strive to provide a range of quality building services at affordable prices. Our fully qualified tradesmen have many years’ of experience when it comes to building works.
Over the years, our building company has gained a reputable name in the industry, providing quality service and a personal and bespoke approach. Whether you are looking to add additional space to your property through a loft conversion or extension, or need a new bathroom installation, our builders can help you. To enquire about your individual requirements, contact ABC Wales today. Let us help you transform your home.

new roof on new home in Cardiff

Loft Conversions

Loft conversions are an ideal solution to extend your living space without the need of an extension. This option can be less stressful and more affordable than a complex extension. A loft conversion will also help to increase the value of your property as well as improve the style and aesthetics of your property.

loft conversion

Complete Attic Conversion Service

As reputable building contractors in Penarth, we pride our business on offering a complete service. We will see your loft project through from initial consultation through to completion and there will be no need to employ any other trades people.

Our service includes an initial consultation to discuss your unique requirements, including the installation of a stairwell; followed by a survey including all measurements being taken. Once we have gathered all the required information, we will provide you with an inclusive quotation.

Our Structural Engineer will draw up plans and a report which will indicate designated window locations and load bearing areas which will form part of the loft extension. However, as long as your loft stays within strict limitations, you may not even need planning permission. If planning permission is not required, we will still submit plans to ensure building regulations are adhered to.

Loft Floor

The loft floor is an essential aspect of any attic conversion. The new floor will be installed in accordance with the structural engineer’s specifications.

All materials will comply with building regulations.

Dormers and Windows

If dormers are required, they will be designed to the specification set out at the initial consultation. 

We can help advise you on the best windows for your loft room.   We will supply and fit all roof-lights, which will be FENSA approved and guaranteed.


Stairs are subject to very tight building regulations. Part of the initial consultation will involve discussing different stairways, depending on the space available and layout of your property. We are highly experienced in fitting a wide range of stairways to suit all tastes and budgets.


We fit top of the range insulation to ensure your loft room keeps the heat in.

Ventilation & Fire Regulations

The loft attic must be ventilated in line with building regulations and we will fit hard wired electric smoke detectors as required to ensure your new room complies with fire regulations.

Interior Finishing

Our expert team will finish your loft room to the highest standards. Walls are plaster boarded and plastered, ready for decoration. If required, skirting boards will be fitted to match any existing skirting board in your property to ensure the flow of your home is consistent. Doors that comply with building regulations will be fitted in the style of your choice.

Contact us for Loft Conversions

If you are thinking about having a new loft conversion, please call us to discuss your requirements and book a survey and quotation. Our friendly builders will be able to provide ideas and discuss your unique requirements. To arrange a free consultation email or call us now on 07885 286417.


From replacing roof tiles to installing an entirely new roof, our expert builders can help you. We specialise in an array of roofing services to help to maintain your property. Thanks to our industry experience, we can work with a range of roofing designs and materials, from pitched to flat roofs. As well as repairing or replacing your roof, we can also install the roof windows of your choice. 

New roof being installed on a home

House Extensions

House extensions provide a cost-effective and simpler alternative to moving to a bigger property and will also add value to your property. Extensions provide homeowners with all the benefits of moving to a bigger home without needing to. By extending your home with ABC Wales, we can guarantee an increase in living space as well as a stunning home transformation. We understand that an extension of your home is a personal and rewarding experience. As a result, our professional builders strive to meet all of your individual requirements throughout this process. From initial quotation, through to completion, we work closely with you to ensure all requirements are met and that the extension is built within the agreed budget and timescales.

house extension interior showing finished interior and roof windows

We offer a complete service including building services, electrical and plumbing work as required. Your new extension will be finished to the highest standards including the fitting of doors that meet fire regulations, skirting boards, plasterboarding and plastering, ready for decoration.

Bathroom Design

We can help design and plan your bathroom, so you have the bathroom you have always dreamed of. At the initial consultation we will perform a survey to check the layout and location of drainage and soil pipes.

We offer a supply and fit service, and a fit only service, so whether you buy a bathroom off the shelf or need us to provide the full service, we can help. For affordable bathroom design and installation, call us today on 07885 286417.

new contemporary bathroom installation

Bathroom Fitters

Transform your home today with a stunning new bathroom installation from ABC Wales. Our bathroom fitters can install your dream bathroom for you. From plumbing services to flooring and tiling, we can offer the full installation service. Whether your old bathroom needs a new lease of life, or your existing bathroom requires general plumbing repairs, our builders have all the knowledge and experience to resolve the issue.

Kitchen Design and Fitting

Transform your property with a new kitchen. We can fit your new kitchen to the highest standards. We offer a complete service, so we can help you design you dream kitchen and source the materials for you. Alternatively, if you want to buy an off the shelf kitchen and have us fit it for you, we can help.

Our professional builders offer a full kitchen installation service, down to the very last detail. From installing new kitchen cabinets to fully refurbishing your entire kitchen, ABC Wales can help you to transform your kitchen space.

contemporary newly fitted kitchen

Complete Kitchen Installation Service

We offer a complete kitchen installation service. As well as fitting your new kitchen we can also perform all electrical and plumbing works, meaning you will not need to hire and coordinate any additional tradespeople.

Let us help transform your kitchen. Call ABC Wales on 07885 286417 or email us to arrange a free consultation.


ABC Wales offer a first class stair installation service. We have many years’ of experience in installing a range of stunning staircases from both leading stair manufacturers and expert joiners. Ranging from solid wood staircases to staircases with metal banisters and glass steps, our experts have experience with them all.

As well as fitting new staircases, we can also repair your existing staircase.To book a free consultation, please contact us on 07885 286417.

new staircase

Contact ABC Wales

If you require additional information regarding our building services, please do not hesitate to contact us on 07885 286417. Our expert building contractors will be happy to offer their knowledgeable advice on any queries you may have. For the best quality building services, make ABC Wales your first call. We look forward to hearing from you soon.

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