Sustainable Retaining Wall Construction

Smarter precast. Smaller impact.

We don’t believe in overclaiming

But we do believe in doing things better, and that includes how we design and manufacture our retaining wall systems.

From the geometry of each unit to the energy that powers our factory, we’re working hard to reduce the carbon footprint of every retaining wall we supply and install.

Painted precast retaining walls in residential project

Lower-carbon concrete, already in use

All our retaining walls are made with a reduced-carbon mix, designed to deliver the same strength and finish, but with considerably less cement.

And we’re not stopping there. The CBS Group is actively developing cement-free concrete alternatives, with promising results already seen in production trials.

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50%

Up to 50% less cement already achieved in standard concrete mixes

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60%

Targeting 60% cement reduction across all production

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94 kg

Eco-concrete mixes that produce just 94 kg CO₂ per m³, compared to 340 kg in traditional concrete

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250 kg

That’s a saving of 250 kg CO₂ per m³, already making a measurable difference on projects

Cleaner production processes

Every product is cast using self-compacting concrete, with up to 75% of the water coming from recycled sources. No vibration. No slurry. No excess waste.

We’ve also been using recycled aggregates in selected batches since 2013, and we’re scaling this up wherever it meets performance standards.

Designed to reduce waste and cut emissions

Our wall systems are designed to optimise material use and minimise unnecessary transportation. That adds up to cleaner builds, safer sites, and fewer unnecessary materials.

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Lighter unit weights and longer wall sections reduce the number of deliveries needed

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Smart wall geometry and a leaner mix design equals less concrete per unit

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In-house reinforcement production ensures better quality control and reduces transport loads from suppliers.

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No-fix installation means no resin anchors, no grout, and no drilling on site.

Powered by renewables

Our factory in Belgium runs in part on solar and wind energy, with COâ‚‚ savings that benefit every product we supply in the UK.
  • 6,320 tonnes COâ‚‚ saved annually via wind
  • 301 tonnes COâ‚‚ saved through solar energy (shared across concrete and steel plants)
  • Enough renewable energy generated each year to power over 2,800 homes
That energy is used to manufacture our retaining walls and reinforcement steel, cutting operational carbon emissions at the source.
Wind turbine in precast factory

The Company We Keep

Built To Last

A sustainable wall isn’t just about how it’s made. It’s about how long it lasts. Our retaining walls are:
  • Designed to Eurocode standards
  • CE marked to EN 15258
  • Rated for 50+ years of service life, with bespoke designs available up to 120 years
Longer lifespan – equals fewer replacements, which results in lower carbon emissions over the entire life of the wall.
Sustainable precast concrete products
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