Every trade in-house. Foundation to finish.
ADUs, concrete, additions, foundations, hardscape—Trinity pulls the permits and does the work. No subcontractor handoffs. No markup layers between you and the crew on your site.
Scope by scope. All in-house.
Accessory Dwelling Units
Concrete Work
Home Additions
Backyard units, garage conversions, detached studios. Trinity handles zoning, permits, utilities, and the structural build from slab to roof.
Slabs, flatwork, driveways, retaining walls, and structural pours. Mixed and placed by our own crew—no third-party concrete sub.
Kitchen expansions, room additions, second-story builds. We tie the new structure into the existing home at every layer—framing, utilities, finish.
Foundations
Hardscape Design
Hardscape Installation
New pours, repairs, underpinning, and seismic retrofits. We read the soil, engineer the solution, and place the concrete ourselves.
Site plans, material selection, drainage logic, and layout. Design is done on-site with the actual conditions in front of us—not from a catalog.
Patios, driveways, retaining walls, and walkways set by the same crew that designed them. Base prep, material placement, and grading done in sequence.
Same crew digs it. Same crew finishes it.
When concrete, framing, and hardscape all sit under one company, scheduling problems resolve on-site—not in an email chain between separate subs.
Transparent pricing follows from this directly. No markup layers. You see what each scope costs because we hold each trade.
Know your project. Ready to talk scope?
Bring us the site conditions and the goal. We show up, look at the actual dirt, and give you a straight answer on what it takes.