ACJ Retaining Solutions Ltd working in collaboration with Green Gravity Walls, now offers a proven alternative. We can repair failing timber crib walls without ripping out the entire structure – drastically reducing cost, waste, and disruption.
For years, the only option when a timber crib wall failed was full demolition and rebuild. This meant:
Huge costs Major disruption on site Long construction times
This is a breakthrough for developers, asset owners, and engineers who want a sustainable, long-term solution.
Across the UK, timber crib walls are now reaching the end of their lifespan. While these structures were once a popular choice, their long-term durability is limited — and there are several reasons why problems emerge sooner than expected.
Timber degradation – When inferior or poorly protected timber is used, it begins to weaken far earlier than planned, leaving the wall vulnerable.
Insufficient preservation – Even treated timber can break down if preservation methods weren’t properly applied or have deteriorated over time.
Unsuitable infill – If the stone used inside the crib contains too many fine particles, it tends to hold moisture. Trapped moisture accelerates the decay of surrounding timber.
Poor drainage design – Without effective drainage, water pressure builds up behind the wall. This not only stresses the timber but can also wash out sections of the structure.
Construction defects – Walls that were not installed to the correct specification often show signs of instability much sooner than expected.
These issues mean that timber crib walls are only ever a short- to medium-term solution. Once signs of bulging, cracking, or movement appear, full collapse may not be far away. Traditionally, the only option has been to rip out the entire wall and rebuild — a costly, disruptive process.
Our approach changes that. We can provide a smarter, sustainable repair that extends the life of these walls without starting from scratch.
We provide a modern solution that:
✅ Extends the wall’s service life with minimal intervention
✅ Avoids the need for demolition and complete rebuild
✅ Keeps projects moving with less disruption
✅ Delivers a carbon-neutral, Environment Agency-approved outcome over time
Whether your timber crib wall has already failed or is just beginning to show signs of weakness, we’re here to help. Simply use the form below to share your details — and if possible, include up to 2 clear photos, wall dimensions, and the approximate installation date. Our team will review your information and provide expert advice on the most cost-effective repair options available.
Please enter the average length and height of your wall to estimate how many ECO-MSE bags you'll need.
