Process
Why We Partner with Other Specialty Contractors
Concrete trucks, equipment rental, drywall — we bring the right partner for each job. Here's how that helps you get better work without paying a markup.
Updated April 17, 2026
A small foundation and waterproofing crew can't specialize in everything. The honest way to handle that is to partner with people who are better at specific pieces than we are — and bring them in when it matters.
When we bring in partners
- Smaller concrete pours (2–5 cubic yards): We use Liquid Stone's volumetric mixers for this. Their trucks mix on-site to exactly what you need. No short-load fees, no waste, no waiting on a batch plant 45 minutes away.
- Large concrete pours: When you need 10+ yards of mix with consistent slump over a few hours, we work with established ready-mix partners who can stage multiple trucks.
- Drywall finish: After egress windows and interior work, specialized drywall crews come in for the clean finish — tape, mud, paint to match your existing walls.
- Heavy excavation: When a job needs equipment we don't own, we rent or contract rather than forcing a workaround that costs you more.
What this means for you
- You get specialists doing specialized work — not generalists faking expertise.
- We don't mark up partner labor. What they charge us is what you pay.
- Timelines stay realistic because we aren't pretending a two-person crew can do everything at once.
- Quality stays higher because each phase is done by people who do that phase every week.
Who we partner with
- Liquid Stone (Louisville / Southern Indiana) — volumetric concrete. liquidstonecrete.com
- Drywall finish, excavation, and other specialty partners local to Southern Indiana.
If you want to know specifically who's doing a piece of your job, ask us — we'll tell you.
How this shows up in an estimate
Line-item. You see exactly what Cornerstone is doing, what a partner is doing, what the materials cost. No black box.
Free inspection: (812) 850-5320.