Mainmark has built a reputation, second to none, in the successful remediation works necessary to help ensure the stable foundations of public buildings for generations to come. These works can be particularly delicate and complex and so we have developed innovative and cost-effective solutions using a key-hole surgery approach that provides quick, non-invasive results.

Mainmark’s advanced technologies stabilise and support the ground beneath the structure, giving the heritage building a new lease of life.

For large or complex buildings, our integrated computer grouting technique enables a precisely controlled, gradual level correction process, minimising damage to often fragile masonry, glass and complex steel or concrete structures. Lifts of greater than 500mm are achievable with Mainmark’s unique solutions.

In many cases, the building can continue to be enjoyed by the public during remediation. Our experienced team can repair cracks in the walls, lift and re-level sinking floors and re-support structures, focusing on one area of the building at a time.

Our innovative key-hole methods are used. Small diameter holes are drilled through the ground slabs and foundations of the building which then allow grout injectors to be inserted. Flexible pipework connects these to computer controlled valves and hence to the grout pumps, and multiple survey points are installed and located across the building. These are continuously monitored by robotic survey instruments or laser levels to control the grout pumping and the gradual levelling of the structure.

Mainmark’s engineered resin injection is also another fantastic solution for many public buildings such as churches and libraries suffering from natural ground subsidence. This unique technology uses an insertion delivery method to raise, re-level, and re-support buildings and is a fast, non-invasive and overall cleaner alternative to traditional underpinning.