Where it started

Founded in 1989, JJ Roofing Supplies quickly grew to become North London’s largest roofing merchant, with ten stores and a thriving e-commerce platform. Built on a foundation of quality, expertise, and outstanding customer service, we earned the trust of trade and commercial customers by offering top-tier roofing materials at competitive prices.

With decades of experience in the industry, we saw the need to expand beyond roofing—and so, JJ Building Materials was born. Our new venture brings the same commitment to excellence, now supplying a full range of construction materials to meet the evolving needs of builders, contractors, and DIY enthusiasts alike.

The JJ Family Expansion

From our roots in North London, JJ family has grown into a trusted name for builders, contractors, and homeowners across the UK. With a commitment to quality, reliability, and trade expertise, we have expanded our offering beyond roofing to provide a full range of building materials—ensuring our customers have everything they need for projects of any scale.

Whether you’re working on a new build, renovation, or repair, JJ Building Materials is here to support the UK’s construction industry with top-grade supplies, expert advice, and unbeatable value.

Building Trust

At JJ Building Materials, trust is built on quality, reliability, and expertise. We work closely with leading manufacturers and rigorously select materials that meet industry standards—ensuring our customers get durable, high-performance products they can rely on.

Our team is committed to quality assurance at every stage, from sourcing to supply. Whether it’s timber, roofing, insulation, or drainage, we stand behind every product we sell, so tradespeople and homeowners alike can build with confidence.

Our Core Values

We are dedicated to providing only the highest-quality materials, rigorously tested and sourced from trusted suppliers, ensuring durability and performance for every project.

Our customers’ needs are our top priority. We offer expert guidance, reliable solutions, and responsive support to ensure that every project is a success.

With over 35 years of experience, we’ve built a solid reputation based on trust, transparency, and ethical business practices, striving for excellence in everything we do.

JJ Family Today

Growing Stronger with over 35 years of industry experience, +£3 million in stock value, and 9 branches across London, South East and Hertfordshire, JJ family continues to support builders across the UK with quality products, expert service, and unbeatable value.

  • Over

    35

    Years of Trading

  • With

    £3M+

    Stock Value

  • Operating in

    10

    Branches Across UK

Don't take our word for it

  • I ordered 12 roof tiles, which i could not find anywhere else, only full pallets. This company offers small orders which is great. The postage for such a small parcel is in my opinion too much, £49 but roofer wants £200 to replace 3 tiles, this way i have some spares for years to come. I messed up addresses for delivery and guys were super flexible and made sure that the address was corrected and tiles delivered to the correct one. Good communication, fast delivery. No problem.

    Tomas Klema
    Verified Customer

  • Start to finish Helen was absolutely brilliant and extremely helpful. The effort that she put in was hugely appreciated and made it he process so easy. Will definitely return.

    Phillip Pettitt
    Verified Customer

  • Helen Walsh just wow! Perfect example of how to treat customers. Cannot praise Helen enough on just how fantastic she has been with helping us with our order. From start to finish the service has been seamless and incredibly prompt. Helen you are a true asset to JJ Roofing Supplies.
    Thank you so much! Would recommend this company and Helen to everyone!

    Pure Renovation & Design Ltd
    Verified Customer

  • Wide range of stock. Found what I needed where others struggled. The eves tiles were delivered within two days. Well packaged so no breakages.

    T. Vaughan
    Verified Customer