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Whitchurch Builders & Decorators Supplies
One of the longest serving Builders' Merchants in Cardiff and South Wales, with over 60 years experience in providing building supplies for trade and DIY. We offer friendly, expert advice, and we are confident that you'll find our building supplies top quality and competitively priced! We deliver our building supplies throughout South Wales, often with same day delivery.

For a Builders' Merchant with an extensive range of quality, industry recognised products and unparalleled levels of customer service, visit Whitchurch Building Supplies, Cardiff. I had a lot of work done out my back garden. The face brick we were using were out of production from the other company. Whitchurch builders went out of their way to get me more of the same blocks. They are very friendly and helpful. I will always use this company as they are good on price, and on time with their deliveries.
Services
There are many simple yet effective ways to insulate your home, which can significantly reduce heat loss while lowering your heating bills. Choosing the correct insulation material is important to ensure your home is properly insulated. Our Cardiff yard has a large selection of insulation products & materials for DIY through to the building trade.
We supply lintels suitable for internal or external applications and for all construction methods: solid wall, timber frame or brick and block. Our lintels are available in a wide choice of sizes to ensure that we have the item you need. We offer free delivery in the Cardiff area and can offer advice on the type and size of lintel you need.
Our wide range of high quality concrete building blocks come in a variety of sizes, strengths and densities to allow you complete your project using the most suitable application. We also stock Edenhall bricks which offer a rich palette of facing brick colours in all shades, from white to blue and everything in between!
From gravel, to stone, to crushed rock, we have every application covered. Stone, gravel and crushed rock have a wide variety of uses in most building projects in the civil, commercial, residential or industrial construction sectors. It is extensively used to help improve and strengthen drainage and walking surfaces by mixing it with other materials or adding it as a porous filler.
Fixings of one sort or another are in constant use in workshops, on site or in the home. Whitchurch Builders Supplies sells a comprehensive selection of the best fixings, fastenings, nuts, bolts, rivets, staples and screws and our knowledgeable staff will provide advice if required. As one of the most established builders merchants in Cardiff, we are sure to have exactly the fixing or fastening product you need.
Reviews (8)
Liam Gaughan
Liam Gaughan
Jan 29, 2022
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Been using witchurch builders for approximately 2 years. I have used all other merchants in Cardiff but none compare.
I used to shop around for the best prices but witchurch builders has all materials priced very competitively and stock everything you could need.
From making the order in the shop to being loaded in the yard, quick and simple with a lot of workers in the yard to assist with loading it showing you where your product is.
Regards to the delivery service witchurch builders offers,from small to large lorries given a day and a morning or afternoon slot you can Guarantee it will be
Steffan Wilkins
Steffan Wilkins
Jan 23, 2022
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Fantastic.. always got what you want, plenty of variety of products. Very knowledgeable about building products and what you might need, service you won't get at b&q..
Phillip Davies
Phillip Davies
Jan 18, 2022
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Firstly I’d clarify this is generally a good company and I’ll be using them again for other products. This review is based on my most recent order for untreated softwood. The wood itself seems decent quality but unfortunately the delivery has rendered it unusable for the purpose I bought it for. The order was delivered on a truck laden with wet stone chips but unfortunately the stone chips were loaded on to the wood. On inspection the wood is now wet and covered in ice, dented, stained with stone dust and possibly permanently compromised for woodworking purposes. At best it’ll need to be
James Smith
James Smith
Dec 11, 2021
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Lovely local builders yard, really helpful staff, will definitely be going here instead of the big box stores in future!
Simon Bennett
Simon Bennett
Dec 01, 2021
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Excellent Merchants friendly and very helpful team, have many items in stock and always willing to help, ask them about the post mix, mortar mix and general purpose concrete.
Tricia Dixon
Tricia Dixon
Jul 27, 2021
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The people at this business are incredibly knowledgeable and extremely helpful. I cannot recommend them highly enough.
Liz Burge
Liz Burge
Apr 22, 2021
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Have used WBS twice and have been extremely impressed. Both orders were delivered promptly. The second order I ordered too much and rang to see if they would take a ton of gravel back which they confirmed they would. They collected the same day and provided the refund less delivery charge. Extremely impressed. Both people I spoke to were very helpful and friendly.
Jenny Bradford
Jenny Bradford
Sep 08, 2020
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Second to none service, was half way though the build of my tiki hut when lockdown came, needed addition timber to secure my roof and sides and tarpaulin, was originally told 2 wks for delivery, after a few windy days I was worried my roof would blow off and all hard work was down the drain, thankfully after speaking to owner he has managed to deliver within 6 days to me, I really appreciate their service, thank you so much