Red clay installation — Caldwell County, 2025
We'd failed two perc tests with a different company. Trench came out the next morning, flagged a shallow hardpan layer we'd missed, and redesigned the drain field on the spot. Permit cleared in four days.
Dale Whitfield
Rural Homeowner — Burke County, NC
Soil Classification
Cecil Sandy Clay Loam
System Type
1,000-gal Conventional w/ Pressure Distribution
Drain Field
420 linear ft — Level C Soil
Days to Completion
7 calendar days
Soil Classification
Mecklenburg Clay
System Type
1,250-gal Septic w/ Gravity Drain
Drain Field
360 linear ft — Level II Soil
Days to Completion
9 calendar days
My inspector flagged the old system three days before closing. I called four installers. Trench was the only one who could give me a written scope and a permit application same day. We closed on time.
Renata Okonkwo
Real Estate Buyer — Iredell County, NC
Aggregate Performance — 1,200 Installs
Average Response Time
From first inquiry to a licensed tech on the phone. Measured across 387 jobs.
Warranty Claim Rate
Industry average sits at 6–9%. Our installs hold because the design work comes first.
Repeat or Referred
Of every ten jobs, four come from a past client or someone they sent directly.
Soil Classification
Gaston Silty Clay Loam
System Type
1,500-gal Low-Pressure Pipe
Drain Field
480 linear ft — Level III Soil
Days to Completion
6 calendar days
We run residential pours across three counties and we keep Trench on speed dial. They show up licensed, they pull the permit before the inspector arrives, and they don't leave until the county signs off. Every time.
Travis Hembree
General Contractor — Catawba County, NC
Forty acres of red clay and a lot that had been sitting vacant for twelve years. They ran the perc, pulled soil cores in three locations, and had a design that worked the first time. My well driller said he'd never seen it move that fast.
Mitch Garland
Rural Landowner — Lincoln County, NC
Soil Classification
Wilkes-Enon Complex
System Type
1,000-gal Conventional w/ Serial Distribution
Drain Field
390 linear ft — Level C Soil
Days to Completion
11 calendar days
By the Numbers — County Records, 2024–2025
First-Pass County Approval
Permits that clear on the first submission — no redraws, no resubmittals, no delays.
Median Install Timeline
First call to signed-off working system. Across all soil types and county jurisdictions.
We had a failing mound system from 1997. Trench decommissioned the old one, ran a new lateral field sixty feet upslope, and handled every conversation with the county health department. I never made a single call myself.
Sheila Drummond
Rural Homeowner — Alexander County, NC
Soil Classification
Pacolet Sandy Clay Loam
System Type
Mound System Replacement — 1,250-gal
Drain Field
510 linear ft — Level II Soil
Days to Completion
14 calendar days
Soil Classification
Madison-Braddock Complex
System Type
3-Lot Variance — Engineered Systems
Drain Field
3 × 440 linear ft — Engineered Design
Days to Completion
18 calendar days
The subdivision I'm developing had three lots the county said were marginal. Trench ran supplemental perc tests, filed variance requests on two of them, and got all three approved. That's six figures of value they pulled out of the ground.
Jerome Patel
Land Developer — Caldwell County, NC
From first call to a working, permitted system in the ground. Median across 1,200+ installs.
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