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WELCOME TO

LARSEN

At Larsen Building Products, we have been manufacturing quality building products since our establishment in 1975.

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INNOVATIVE

RESEARCH
& DEVELOPMENT

Technical excellence is at the heart of what we do at Larsen, thanks to our in-house Research & Development team.

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MANUFACTURED IN

BELFAST

We’ve operated as a family-owned business for over 5 decades in Belfast’s thriving docklands, distributing products to our loyal customers across NI, ROI & GB.

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100000

Over 100,000 Tons Produced Annually

50 Years in
Business

70+
Employees

About Us

Larsen Building Products has been setting the standard in professional building solutions since 1975. From our roots in Antrim, Northern Ireland, as a family-owned business, we’ve grown into a cutting-edge buildings products manufacturer, delivering quality solutions to the diverse needs of the construction market.

What started as a company supplying Admixtures to concrete plants, now has an extensive full product catalogue for industries such as Tiling, Flooring, Streetscape, Mortar and much more.

Service

Larsen delivers exceptional service, combining prompt deliveries with 45+ years of construction expertise for unmatched technical support.

Research

Larsen invests heavily in product innovation, using advanced R&D methods to tailor solutions to user needs.

Quality

Larsen’s quality policy guarantees products meet strict standards through rigorous testing before dispatch.

Health & Safety

Larsen upholds the highest health and safety standards, continuously improving to meet all regulations.

Environment

Larsen responsibly manages chemicals to reduce environmental and health impacts, striving for more sustainable products.

Fibreflex ™ Semi-Rapid Set+

Microfibre Reinforced | Fully Flexible | S1 Rated

Discover the 3 Ways to Mix! Containing Advanced HydroGel Technology, Larsen Fibreflex™ Semi-Rapid Set+ (Pink Pro Bag) produces a full bodied tile adhesive with increased hold. Ideal for Large & Extra Large Format Tiles.

Fibreflex ™ Semi-Rapid Set+

Microfibre Reinforced | Fully Flexible | S1 Rated

Granite paving at Lewisham Gateway in the heart of Lewisham, London, was installed using Larsen’s BS 7533 Eco Streetscape Paving Mortar System; including Priming Slurry, Fine Bedding Concrete & Flowable Jointing Mortar Smooth.

BESTSELLERS

CUSTOMER FAVOURITES

Explore most wanted products across our divisions from Builders Merchants to Tiling, Streetscape, Flooring, Highways and more below. Tap a product to find out more!