At London Fibreglass Co, we provide high-quality fibreglass box gutter systems that are custom-built to protect your property from water ingress. Designed for durability and reliability, our GRP (Glass Reinforced Plastic) box gutters are ideal for both domestic and commercial buildings, especially where traditional guttering fails or is difficult to maintain.

What Are Box Gutters?

Box gutters are concealed drainage channels typically positioned between roof slopes or at the base of parapet walls. Due to their shape and placement, they require high-performance waterproofing to prevent leaks and overflow. GRP is the ideal material for this — it forms a seamless, joint-free surface that resists standing water and weather damage.

Our Box Gutter Services Include:

• New Box Gutter Installations
  We fabricate and install bespoke GRP box gutters that blend with your roofline and ensure efficient drainage.

• Box Gutter Repairs
  We repair cracked, leaking, or failed box gutters, restoring their performance with expert fibreglass application.

• Box Gutter Lining & Recoating
  For older or metal-lined box gutters, we can apply a seamless fibreglass lining to extend lifespan and improve waterproofing.

• Commercial & Industrial Guttering
  We handle box gutter installations for flat-roofed warehouses, commercial units, and industrial sites.