WBS - Cardiff Builders’ Merchants. Since 1946.

Welcome to Whitchurch Builders Supplies (WBS) - the independent Cardiff Builders' Merchants here for you since 1946.

Open to Trade & Public
Supplying quality building materials and supplies to Cardiff & South Wales since 1946.
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75+ Years
Decorative Stone & Chippings
Brows our wide-range of gravel, chipping, stone and cobble.
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Pay & Collect Aggregates
Select Local Pickup at checkout and collect within 2 working hours.
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Quality Brands That Won't Let You Down.

Stocking the #1 Brands

WBS stocks the biggest building and DIY brands at competitive prices. Our partners ensure that stock levels are plentiful so we can supply you with your building needs.

Just Added

We are adding products to our new website daily, so come check back to see what's new. You'll notice that some products are awaiting images. Fear not, product images are being added ASAP, but we wanted to make our products available for our customers who know what they need!

Marshalls Concrete Facing Brick

£0.75 - £312.00 excl. VAT

Barleystone Breffni Smooth Concrete Facing Brick

£0.75 - £360.00 excl. VAT

Rockfaced Concrete Blocks

£2.00 - £245.00 excl. VAT

Hollow Dense Concrete Block 7.3N 215mm

£3.50 - £154.00 excl. VAT

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Reduce Building Material Waste & Save Money

Material Calculators

Our calculators can help you order the correct quantity, saving time and money on unnecessary materials and additional deliveries. Easily share results with your building professionals.

Use Calculators

The WBS Family

Experts in Building Supplies

Join the growing family of satisfied customers who have experienced the unique blend of professional and personal service that only a family-run business can offer.

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Quality Building Supplies for Professionals & DIYers Since 1946.

Whitchurch Builders Supplies value every building project, so we take a personalised approach to each customer. Being a family-run business for 75+ years, you're not just a customer but part of the family when you work with us.

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Very good builders merchants and have a great variety of stock.
Craig Edwards
Very helpful and friendly. The best yard I've visited.
Max Lyte
Great local suppliers of all building materials.
Alastair Rayment
Really helpful in answering my questions and had a great delivery service.
Kelly-Anne Norrington
Excellent service. They rang us on leaving to say they would deliver within half an hour! They were very pleasant to deal with.
Carol Hulton
Phoebe at Whitchurch Builders was a great help. She found exactly what I wanted and helped with the measurements. I had my delivery the next day. I am pleased with the chippings. I definitely recommend this company. Thank you.
Yolande Flavin
I bought timber fencing materials. Great value for money and helpful staff.
Mark Richards
Got everything you need! Will use regularly.
Phil Hulton
Local family run business. A very busy store with exceptional, friendly and helpful service by Gareth, Mike and Len. Highly recommend for all your construction needs.
Mark Sutton
Very impressed with the service here. Mike went to a lot of trouble to source exactly what I wanted despite it being only a small sale. Thank you. Very much appreciated.
Liz Wilding
Phoned up to get some bulk bags delivered as needed asap and other suppliers saying they couldn’t deliver for several working days. Guy on the phone was really friendly and helpful and they turned out far cheaper too so i was glad i wasn’t able to order through the other supplier in the end. Phoned about 4pm and the delivery came at 8am the following day! Delivery guy was just as good too. Will be going to them first in future.
Matthew Lee
Great company, best builders' merchants in Cardiff. Nice staff and a great bunch in the yard.
Dave Sullivan
I have used other builders' merchants in Cardiff but none compare. All materials priced competitively and they stock everything you need.
Liam Gaughan
Staff are very helpful and friendly. Well supplied yard. Prices competitive.
Susan Huckson

Very good builders merchants and have a great variety of stock.
Craig Edwards
Very helpful and friendly. The best yard I've visited.
Max Lyte
Great local suppliers of all building materials.
Alastair Rayment
Really helpful in answering my questions and had a great delivery service.
Kelly-Anne Norrington
Excellent service. They rang us on leaving to say they would deliver within half an hour! They were very pleasant to deal with.
Carol Hulton
Phoebe at Whitchurch Builders was a great help. She found exactly what I wanted and helped with the measurements. I had my delivery the next day. I am pleased with the chippings. I definitely recommend this company. Thank you.
Yolande Flavin
I bought timber fencing materials. Great value for money and helpful staff.
Mark Richards
Got everything you need! Will use regularly.
Phil Hulton
Local family run business. A very busy store with exceptional, friendly and helpful service by Gareth, Mike and Len. Highly recommend for all your construction needs.
Mark Sutton
Very impressed with the service here. Mike went to a lot of trouble to source exactly what I wanted despite it being only a small sale. Thank you. Very much appreciated.
Liz Wilding
Phoned up to get some bulk bags delivered as needed asap and other suppliers saying they couldn’t deliver for several working days. Guy on the phone was really friendly and helpful and they turned out far cheaper too so i was glad i wasn’t able to order through the other supplier in the end. Phoned about 4pm and the delivery came at 8am the following day! Delivery guy was just as good too. Will be going to them first in future.
Matthew Lee
Great company, best builders' merchants in Cardiff. Nice staff and a great bunch in the yard.
Dave Sullivan
I have used other builders' merchants in Cardiff but none compare. All materials priced competitively and they stock everything you need.
Liam Gaughan
Staff are very helpful and friendly. Well supplied yard. Prices competitive.
Susan Huckson

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Trade Account

Exclusive Access to Trade Prices

Personalised prices in-store and online. Apply for a trade account with Whitchurch Builders Supplies and become part of the family.

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Help & Customer Support

The WBS Team are here to help you...

Delivery Information
Find all the details you need to ensure a smooth and timely delivery experience.
FAQs
Quick and straightforward answers to our most frequently asked questions.
Get a Quote
Are you seeking a personalised quote matching your specific budget and requirements?