About

Water & Pest Technologies is a premier UK manufacturer and supplier of high-performance structural protection solutions. Based in West Yorkshire, our family-run business honours a profound legacy, bringing to life the innovative property flood resilience engineering concepts pioneered by our late son, Luke Alexander Ruddiman.

We began by manufacturing and commercialising Luke’s groundbreaking, UK patented 110mm and 150mm non-return drainage valves. That foundation powers our industry-leading product ecosystem today, which includes the highly acclaimed Buffalo Standard Anti-Flood Air Brick.

The Buffalo air brick is 100% passive and completely battery-free. Independent analysis from PDSVISION verifies that the unit maintains a certified 4156 mm² true internal free area, ensuring full ventilation compliance under Approved Document F while delivering total flood protection.

We don’t just supply products; we actively drive industry standards. In April 2026, our signature technology achieved full Kiwa BSI Kitemark certification (KA-26-1002), proving absolute compliance with BS 851188-1:2019. This achievement places Larson Enterprises Ltd at the absolute forefront of the sector, supported by our status as an Associate Member of the International Property Flood Resilience Association (IPFRA).

Every product we manufacture is engineered with simplicity, usability, and compliance in mind. This standard allows local authorities, housing associations, asset managers, and private homeowners to safeguard properties against structural defects, damp, and the stringent regulatory mandates of Awaab’s Law.

Built on lived experience, deep manufacturing expertise, and a strict dedication to protecting homes and businesses, Water & Pest Technologies continues to deliver verified, certified peace of mind straight from the source.