Underground and concrete. Off your critical path.
One in-house crew from first cut to haul-off.
Through completion
We stay until it's done.
Single-trade excavators dig and leave. We stay through completion: survey, excavate, install, backfill, restore. One crew, every phase.
The sequence
Trench. Duct bank. Vault. Pour.
Two ways we show up
Below grade. At the pour.
Two divisions under one name. Most jobs need both, and one relationship covers both.
Division 01
Underground
Excavate → install → backfill → haul-off. Duct banks for N+1 redundancy. Hydro excavation within 6 inches of live infrastructure. Dry utilities, wet utilities, site restoration. In-house from the first cut.
Division 02
On-Site Concrete
Volumetric mixing on your site, to your spec. Standard, rapid-set, flowable fill, thermal encasement. Your crew places. We make sure the mix is right. Dispatch in 2 to 3 days. No waiting on plant schedules.
Why Cornerstone
Proven on the work that matters.
Data centers, water treatment, commercial builds across DFW. More than two decades of underground and concrete work for the contractors who build North Texas.
Data centers
Duct banks, vaults and thermal encasement on hyperscale timelines.
Water treatment
Trenching, utility placement and hydro excavation at operating plants.
Commercial builds
Underground utilities on fixed leasing timelines.
Who we work with
Next step
Same crew. Same sequence.
Electrical contractors and general contractors get the same team and the same process. Send the scope and we'll take it from there.
Contact: estimating@cornerstonecos.com