Mainmark Update: COVID-19 (Coronavirus)

In response to the evolving situation regarding COVID-19, we would like to assure our customers that Mainmark is continuing to operate as appropriate across United Kingdom, according to official advice from relevant authorities, with applicable health and safety measures in place. Our team is also working through contingency plans should advice from authorities change our working arrangements and operational capacity. For now, if you are concerned about our representatives and technicians attending your home or business premises, please contact our customer service team on 0800 9750507 and we will work with you to make alternative arrangements.

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Problems we solve

Finding the best solution for each ground problem requires an experienced and tailored approach.

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Cracked Walls

Solutions for structural damage due to sinking foundations

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Sinking Floors

Solutions for subsidence under your home

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Jammed Doors / Windows

Solutions for unlevel homes due to foundation damage

sinking floors

Foundation Subsidence

Solutions for shifting ground or erosion


Mainmark provide services which are less intrusive to your business or life, are technically competent, quick and cost effective. We raise, re-level, and re-support homes and other buildings.

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Mainmark specialises in soil stabilisation and ground stabilisation to improve support for residential buildings, commercial and industrial facilities, public and heritage buildings, and infrastructure such as roads, bridges and powerlines that are suffering from ground instability.



Mainmark specialises in re-levelling slabs and structures to bring buildings back to correct levels and also strengthen any weak ground under and around the perimeter of the foundations. This helps to ensure a stable base and helps to avoid any recurring sinking issues.

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Mainmark’s approach to foundation repair uses unique underpinning techniques that are like keyhole surgery. Having previously used Uretek®, we now utilise our proprietary Teretek® engineered resin solution as it is a fast and reliable alternative to concrete underpinning.  It addresses subsidence by re-levelling concrete slab floors, strip footings, raft slabs, waffle-pod slabs, infill slabs, and driveways.

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Void Filling

Mainmark offers a variety of solutions for filling underground voids and holes in order to stabilise strata in tunnels and to strengthen the foundations under buildings and other on-ground structures such as railways, roads and bridges.

We're happy to have helped

“Good assumption that we are pleased with the work and the result. Outstanding service undertaken with a team who seem to get satisfaction at doing a worthwhile job where the results are immediately clear. Our sincere thanks.”

Alan and Chrissie, Lymington. February 2020

“The works at the property are now completed, flooring etc all sorted out so the tenants should be pleased. The cracks will need to be filled and decorated, probably give a couple of months to allow for any slight movement.

Thank you for your assistance today, much appreciated! Well done guys great job.”

M_____, Rayners Lane. February 2020

“Everyone was absolutely brilliant, I am so pleased. The crew arrived and worked very hard- there was no messing about, they got straight on with it. I want to thank everybody involved from start to finish.”

Brenda, London. May 2019

“Please pass on our thanks to your team who were very professional and approachable throughout.”

Robert & Christine, Chelmsford, Essex. November 2018

“I’d like to compliment T__ and his colleague (I’ve forgotten his name unfortunately) on their personable and professional approach to the work. It’s not often you get to say it was a pleasure having tradesmen wandering around your property. They discussed all the options, pros and cons with me and made sure I understood what could be achieved. I felt completely at ease asking them the most basic questions. They even managed to use the gaps between paving slabs to minimise the damage caused by drilling.”

Peter, Wakefield, Yorkshire. June 2019