Gumthorn is a specialist contractor providing advanced spray-applied culvert lining solutions for the refurbishment and structural strengthening of existing concrete and brickwork culverts. We deliver these services nationwide, supporting a wide range of sectors to restore culverts to peak performance and longevity. We apply proven culvert spray-applied lining systems, including hybrid silicate linings and sulphate-resistant cementitious renders. These create a seamless, chemical-resistant, fully waterproof barrier that protects against corrosion, erosion, and further degradation while reinforcing the culvert’s overall integrity.

Culverts, especially in confined or wastewater environments, often deteriorate over time due to neglect, chemical exposure, and hydraulic stresses. Our reinforced spray-applied systems not only boost load-bearing capacity and improve flow efficiency but also deliver effective waterproofing—preventing pollutant leaching and reducing the risk of downstream environmental contamination.

For aging or damaged culverts, our high-quality linings provide a cost-effective, minimally disruptive alternative to full replacement. This approach restores structural function, extends service life, and avoids major excavation or downtime.

Our team is fully trained and equipped for confined-space work, including breathing apparatus (BA) certification and strict adherence to health & safety protocols. This ensures safe, efficient, and compliant delivery every time.

For aging or damaged culverts, our high-quality linings provide a cost-effective, minimally disruptive alternative to full replacement. This approach restores structural function, extends service life, and avoids major excavation or downtime.