Beneath every street runs the infrastructure a city depends on. Most of it was laid decades ago — and most of it has never been seen since. Cornerstone Terra renews sewerage and stormwater networks from the inside. No excavation. No road closures. No disruption.
Sewerage and stormwater lines carry a city's health beneath every street. When they fail, the traditional answer is excavation — millions in cost, months of closed roads, and the destruction of assets that still had decades of life left in them. Trenchless rehabilitation changes the economics entirely: the network is inspected, cleaned, repaired and re-lined from the inside, while the street above carries on as normal.
Inspection, cleaning, repair and lining — all through existing access points.
No trenches, no road closures, no service interruption above ground.
Crawler cameras inside the line — joint by joint, defect by defect, until the whole network is mapped and coded.
Structured condition surveys down every access chamber, feeding one consistent picture of the network.
High-pressure cleaning that restores capacity and prepares lines for inspection and repair.
Focused assessment where lines meet — the joints where most networks quietly begin to fail.
Local repairs where damage is contained; full cured-in-place lining where the pipe needs a new life.
Above ground, our drones survey the assets and alignments that trucks cannot reach.
For years, clients asked the Cornerstone team the same question after every pipeline survey: so who fixes it? That answer kept being handed to someone else. Not anymore. Cornerstone Terra closes the loop.
CCTV crawlers, manhole surveys and drone flights map the network's true condition.
Every defect coded, graded and evidenced — a record built to tender and audit standards.
Cleaning, patch repair and CIPP lining restore the network without breaking ground.
The same team that diagnoses your network now rehabilitates it. One standard of evidence, from first camera run to final handover.
Cornerstone Terra is part of the Cornerstone family, alongside Cornerstone Middle East — the technical inspection and testing consultancy trusted by developers, municipalities and facilities teams across the region. Terra brings that same standard of evidence to contracting: every defect documented, every repair verified, one record from first camera run to final handover.
Abu Dhabi, United Arab Emirates
Working UAE-wide