ZIPLEVEL® FOUNDATION & SLAB ELEVATION SURVEYS.
In Greater Houston and Brazoria's expansive Beaumont gumbo clay, guessing at foundation settlement by rolling a marble on the floor can cost you $25,000+. We map room-by-room floor elevations to 0.05-inch precision using a pressurized ZipLevel® PRO-2000 altimeter—included FREE ($0.00) on every full home inspection.
Inspector Mack • TREC #23070
Inspector Mack's Briefing: Why 'Free Foundation Repair Quotes' Are Sales Pitches—Not Inspections
How independent ZipLevel® altimetry separates harmless cosmetic shrinkage cracks from L/360 structural slab deflection.
"Never call a foundation pier company first during your Option Period—commission salespeople sell piers. An independent TREC #23070 ZipLevel® survey gives you unbiased elevation numbers so you know whether a crack is cosmetic settling or requires a licensed Texas Professional Engineer (P.E.) and seller credit."
6-Point Foundation & Structural Evaluation Protocol
Room-by-Room ZipLevel® Mapping
Zeroed at the central slab reference point and measured across perimeter corners, hallways, and load-bearing walls with floor-covering offsets noted.
Step Cracks, Frieze & Cable Ends
Inspection of brick mortar stair-step cracks, expansion joint opening at top vs. bottom, spalled post-tension cable pockets, and slab corner wedge pops.
Doors, Windows & Attic Bracing
Racked door reveals that rub or fail to latch, 45-degree drywall shear cracks over headers, separated ceiling miter joints, and pulled attic purlin struts.
Root Transpiration & Ponding Soil
Identifying mature live oaks drawing moisture from one corner of the slab while negative yard grading or broken gutters overswell the opposite side.
Piers, Sills, Joists & Vapor Barriers
Crawlspace evaluation (+$95 modifier) for leaning masonry piers, crushed wood shims, fungal decay, high crawlspace humidity, and girder deflection.
Timber/Concrete Pilings & Tie-Downs
Elevated coastal home inspection (+$125 modifier) for piling plumbness, groundline rot, rusted through-bolts, Simpson hurricane straps, and breakaway walls.
ZipLevel® Foundation Survey & Foundation Modifier Schedule
ZipLevel® Slab Survey
Included complimentary on every full Single-Family, Townhome, Duplex, and Investor Home Inspection.
Pier & Beam Crawlspace
Subfloor entry (where accessible) to inspect piers, beams, sills, shims, under-floor plumbing & moisture.
Elevated Stilt / Pilings
Timber or concrete coastal pilings, cross-bracing, galvanized/stainless bolts, and hurricane tie-down straps.
Annual Home & Slab Check
Unbiased ZipLevel® elevation baseline, 4K drone roof & FLIR® thermal audit for current Texas homeowners.
Foundation Inspection & ZipLevel® Frequently Asked Questions
Is a ZipLevel® foundation survey the same as a Structural Engineer (P.E.) letter?▼
Our TREC #23070 ZipLevel® foundation inspection renders an official TREC performance opinion ("Performing as Intended" vs. "Deficient / In Need of Further Evaluation") backed by 0.05-inch floor elevation measurements—at $0 extra cost with your home inspection. If our readings reveal abnormal structural deflection, you then have objective proof during your Option Period to require a stamped Texas Structural P.E. repair design paid by or credited from the seller.
Should I add a Sewer Camera Scope if a Houston home has foundation movement?▼
Yes—100%. Foundation movement and under-slab plumbing breaks feed each other: a leaking drain swells expansive clay into an interior upheaval dome, and foundation jacking/lifting frequently shears old cast-iron or PVC drain lines. Adding our 200ft HD Sewer Camera Scope (+$175 bundled) or Hydrostatic Test (+$225 bundled) protects you from a $15,000+ post-closing tunnel repair.
INSTANT QUOTE ESTIMATOR
Select your property size below for guaranteed Texas inspection pricing. Every full inspection includes our $350+ diagnostic suite (FLIR® Thermal, 4K Drone, ZipLevel®) at zero extra charge.
Entering your address transfers your property details directly into dispatch & Stripe checkout with zero re-typing.
- ✓FLIR® Thermal Imaging (Moisture & Hotspots — $150 Value)
- ✓4K Aerial Drone Roof Scan (Steep & 2-Story — $200 Value)
- ✓ZipLevel® Foundation Survey (Precision Elevation Delta)
- ✓Same-Day PDF Report (Guaranteed Delivery by 9:00 PM)