Mainmark Update: COVID-19 (Coronavirus)

Mainmark is continuing to monitor government updates as the impact of the COVID-19 pandemic continues. We are adhering to advice from relevant authorities and are committed to the ongoing health and wellbeing of all our staff and customers. Rest assured that we are now operating as normal with appropriate health and safety measures in place.

Read more

Problems we solve

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

icon cracked walls

Cracked Walls

Solutions for structural damage due to sinking foundations

icon sinking floors

Sinking Floors

Solutions for subsidence under your home

icon jammed door

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.

stabilisation banner


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.

underpinning banner teretek


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.

void filling services

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

“Many thanks for your completion works report. We are very pleased that the results are positive and have achieved the required stabilisation of the ground to proceed with the roof extension.

May I take this opportunity to compliment you and your team on a highly professional and exceptionally conscientious process of working on this project. The team on site, lead by P___, was a pleasure to have in the building, their process was at all times careful of our working and living environment but also clearly intend on achieving the very best results. At one point P___ said “I treat the work as if it was my own home”. This was felt and much appreciated by us. Please do tell the team that we were really happy with their work throughout.

I am certainly happy to recommend your services.”

Melanie, Hoxton. January 2020

“Thank you for doing the work. Please pass my gratitude on to the Engineers and D____. They were all very helpful and polite. It was nice to deal with you as a company. I also have a structural engineer who is waiting for me to personally give him feed back on your company and works carried out as he has a list of clients who need your services.
Thanks again to you all.”

Keith & Roz Nuneaton, Warwickshire. July 2019

“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