Welcome toCentexExcavation

Backfilling a Foundation

How to backfill a foundation the right way: free-draining material, compacted lifts, the footing drain, and grading that keeps water away from the wall.

Installing a French Drain

How a French drain works and how to install one the right way: planning the outlet, trench depth and width, pipe slope, washed gravel, and filter fabric.

How to Prepare a Site for a Concrete Slab

A step-by-step guide to preparing a site for a concrete slab: excavation depth, subgrade prep, base material, compaction, and vapor retarder installation.

How to Install a Silt Fence

A practical guide to installing silt fence the right way: location, trenching, post spacing, J-hooks, splices, fabric height, and the maintenance that keeps sediment on site.

How to Estimate an Excavation Job

A step-by-step look at how excavation contractors build a bid: earthwork takeoffs, swell, production rates, equipment and hauling costs, overhead, profit, and contingency.

Installing a Driveway Culvert

How a driveway culvert is installed, from sizing the pipe to the watershed and choosing the material to minimum cover under traffic, slope, bedding, backfill, and end treatments that stop washouts.