CORE DRILLING
CORE DRILLING PRFESSIONALS
Serving Fresno, Clovis, Sanger , and the Central Valley
Clean, Round Holes Through Solid Concrete
We core drill through concrete slabs, walls, and footings clean, exact holes sized to fit conduit, plumbing, gas lines, and drains, with no cracking or chipped-out mess around the edge. Holes go through rebar and wire mesh, and locations are marked and confirmed before the drill spins, so every core lands exactly where the plans call for it. It's often paired with saw cutting on remodels and tenant improvements, one crew handling both. Every job starts with a free on-site quote.
Free On-Site Walkthrough
It starts with a free walkthrough. We look at the thickness, the rebar, the access, and the scope, then hand you one straight number. No surprises, no change-ups on demo day.
Don't Go Around Go Through
Core drilling makes precise, round holes through concrete, through slabs, walls, and footings without breaking anything around them. It's how new plumbing, electrical conduit, gas lines, and drains get routed through concrete that's staying put. DemoRex provides core drilling throughout Fresno, Clovis, Sanger, and the Central Valley, for residential remodels and commercial projects alike, as a standalone service or as part of a bigger demolition or tenant improvement job.
The holes are drilled to the size the trade needs. Small cores for conduit and water lines up to large-diameter cores for drains, sewer runs, and venting. The drill cuts a smooth, exact circle, so there's no cracking, no chipped-out mess around the hole, and no oversized patch job afterward. The pipe fits the hole, the hole fits the plan, and the concrete around it stays as strong as it was before we showed up.
Core drilling goes through what's actually in the concrete, not just the concrete itself, rebar, wire mesh, and thick pours are all drillable. Holes can go through floors for new plumbing runs, through foundation and stem walls for lines entering the building, and through block or poured walls for conduit, venting, and sleeves. On remodels and tenant improvements, core drilling and saw cutting usually work side by side: the saw handles the trench lines, the core drill handles the penetrations, and the plumber or electrician walks into a space that's ready for them.
Location is everything on these holes, and that's treated seriously. The spots get marked and confirmed before the drill spins, measured to the plans or to your plumber's layout, because a core in the wrong place helps nobody. Drilling creates water and slurry as it cuts; containing and cleaning that up is part of the service. One hole or forty, one visit handles it.
Precision You Can See Straight Through
A core hole tells you everything about the work the moment you look through it, a perfect, even tunnel straight through the concrete, no rough edges, no cracking radiating out from the cut. That kind of precision doesn't happen by accident; it's controlled, steady drilling, checked against the layout before the bit ever touches the surface. One hole finished, another already underway, that's what a job looks like when every core lands exactly where the plans called for it, every time.