Gumthorn provides specialist manhole lining services to refurbish and protect concrete and brick manholes, chambers, wet wells, and pumping stations nationwide.

Using hybrid silicate and sulphate-resistant cementitious systems, we deliver seamless, chemical-resistant waterproof coatings that combat corrosion from H₂S gas, acids, sugars, and industrial effluents—common in water, petrochemical, dairy, beverage, and manufacturing sectors.

Our linings strengthen structures, prevent leaks and degradation, reduce environmental risks, and offer a cost-effective alternative to replacement.

Backed by 15+ years in concrete repairs, leak sealing, waterproofing, and confined-space expertise, Gumthorn guarantees safe, high-quality results that protect your assets and ensure long-term durability.

We provide dedicated manhole sealing, refurbishment, and preventative enhancement solutions for both existing and newly constructed concrete and brick manholes, chambers, wet wells, pumping stations, and below-ground retaining structures. Our services extend to addressing infiltration issues in sectors such as water, petrochemical, and manufacturing, where neglected confined spaces like manholes can lead to leaks, subsidence, overloaded treatment systems, erosion, and potential collapses.

Gumthorn employs advanced sealing techniques, including resin injection, grouting, and waterproof coatings, to deliver seamless, chemical-resistant, waterproof protection that prevents infiltration and extends structure longevity and safety.