DETACHED OUTBUILDING, WORKSHOP & GUEST CASITA INSPECTIONS.
Standard home inspections ignore detached structures. We conduct thorough forensic evaluations of guest casitas, detached garages, metal workshops, pole barns, sub-panels, and buried electrical feeder lines.
Meet Inspector Mack & The Secured Team
Every inspection is led directly by TREC Professional Master Inspectors using calibrated diagnostic gear. We don't just check cosmetic boxes—we map subgrade foundation movement, scan thermal anomalies through solid sheetrock, and scope subterranean lateral lines to defend your earnest money and equity.
Inspector Mack • TDLR & SPCS
Outbuilding Secrets: Slabs, Sub-Panels & Guest Casitas
Inspector Mack breaks down why unpermitted workshops and guest casitas frequently harbor severe electrical and plumbing defects.
"Homeowners love building backyard workshops and guest casitas on weekends without permits. The two most common defects we find are undersized buried electrical wires creating fire hazards and slabs poured without perimeter footings sinking into clay."
WHAT WE SPECIFICALLY AUDIT & DELIVER
Our forensic checklist exceeds standard minimum requirements. Every component is rigorously evaluated and cataloged with high-resolution imagery and severity tiers:
Concrete Slab & Post-Frame Pole Foundations
Checking slab settlement, perimeter grade beam depth, post-frame timber rot in soil, and anchor bolt spacing.
Electrical Sub-Panel, Ground Rods & Feeders
Auditing 4-wire feeder cables, isolated neutral busbar, dedicated grounding electrode rods, and breaker amperage.
Structural Timber/Steel Framing & Wind Bracing
Inspecting wall studs, steel girts, roof purlins, diagonal sway cables, and hurricane tie-downs for windstorm resistance.
Standing Seam, R-Panel Metal & Shingle Roofs
Auditing metal screw neoprene washers, ridge caps, valley flashings, and skylight sealant condition.
Guest Casita Plumbing, Drains & Water Heaters
Testing bathroom fixtures, sewage ejector pump tanks, water heater TPR discharge piping, and freeze protection.
Mini-Split Heat Pumps & Unit Space Heaters
Evaluating ductless mini-split cooling/heating operation, condensate routing, and gas unit heater venting.
Commercial Overhead Doors & Operator Sensors
Testing sectional overhead roll-up doors, safety photo-eyes, manual release cords, and track alignment.
Habitability Standards & Municipal Code Status
Checking bedroom egress windows, smoke detector interconnection, and verifying unpermitted structural modifications.
Texas Gulf Coast Environmental Defect Matrix
Southeast Texas structures face unique environmental stressors that generic national inspection checklists routinely overlook. We specialize in identifying these regional failure modes:
Improper Neutral-to-Ground Bonding in Sub-Panel
Neutral busbar bonded to the equipment ground bar inside a detached outbuilding sub-panel, violating NEC 250.32.
Undersized Direct-Buried Indoor Romex Feeder Wire
Previous owner buried indoor-rated non-metallic (NM) Romex cable in a shallow 6-inch trench without conduit.
Detached Slab Sinking from Missing Perimeter Grade Beams
Pouring a flat 4-inch concrete pad on expansive clay without deepened perimeter grade beams or rebar reinforcement.
Advanced Diagnostic Equipment Suite
Human eyes alone miss hidden electrical hotspots, subterranean pipe collapses, and millimeter-level slab deflections. Every Secured Inspections vehicle is equipped with industrial instrumentation:
ZipLevel® Pro-2000 Altimeter
Measures slab deflection across the outbuilding to detect foundation settling independent of the main home.
SureTest® Circuit Analyzer
Tests for bootleg grounds, neutral-ground bonds, and voltage drop under full 15A/20A shop tool load.
FLIR® E8-XT Camera
Scans mini-split ductless HVAC units and metal roof panels for hidden insulation voids and thermal leaks.
4K Aerial Zoom Drone
Inspects high metal pole barn roofs, cupolas, and agricultural barn exhaust vents.
Actual Field Finding & Financial Impact
Here is an authentic defect documented in our recent inspections, demonstrating how our forensic reports deliver tangible financial leverage:
Sub-Panel Missing Dedicated Ground Rods & Neutral Bonded
Our electrical audit of the detached 1,200 sqft workshop discovered that the 100A sub-panel lacked any grounding electrode rods, and the neutral and ground busbars were bonded together with a green bonding screw. Additionally, the feeder cable was buried only 8 inches deep in PVC conduit.
Frequently Asked Questions: Outbuilding & Guest Casita Inspections
Everything you need to know about this inspection scope, scheduling timeline, and Texas legal protections:
Q1Are detached garages and workshops included in a standard home inspection?▼
Under Texas Real Estate Commission (TREC) standards, detached buildings are explicitly excluded unless specifically added to the inspection agreement. Secured Inspections inspects detached structures upon request.
Q2What is checked in a guest casita or mother-in-law suite?▼
We inspect guest casitas with the same rigorous standard as a primary home: foundation, roof, plumbing fixtures, mini-split HVAC systems, electrical sub-panels, water heaters, and bedroom egress safety.
Q3Why is sub-panel wiring in detached buildings so critical?▼
Detached structures must have an isolated neutral busbar and their own dedicated grounding electrode system (two ground rods). If wired incorrectly, metal surfaces on power tools and appliances can become energized with lethal voltage.
Q4Do you inspect large metal pole barns and agricultural shops?▼
Yes. We inspect steel frame buildings, pole barns, metal workshops, and horse barns—evaluating steel purlins, girts, overhead roll-up doors, and high-bay lighting.
Q5What if the outbuilding was built without municipal permits?▼
Many backyard shops and casitas are built without permits. Our report details whether the structure meets current building and electrical safety codes, helping you understand your liability and insurance risk.
Q6Can I add an outbuilding inspection to my standard home inspection?▼
Yes! You can easily add any detached garage, workshop, pool house, or guest casita to your residential home inspection booking.
Guest House, Casita, Detached Garage & Barn Rate Schedule
Full structural foundation, roof, siding, electrical sub-panel/grounding, plumbing, and HVAC inspection for detached guest quarters, mother-in-law suites, workshops, and pole barns.
Guest House, Casita, Workshop, or Barn Inspection — Bundled
+$175Guest House, Casita, Workshop, or Barn Inspection — Standalone
$275Official Termite & WDI Report (Includes Detached Structure)
+$115Acreage & Country Bundle™ (Water Well + Septic + Termite)
+$480Includes complimentary FLIR® Thermal Scan and 4K Drone Roof Inspection of the secondary structure when bundled with your primary residence.
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)
Ready to Inspect with Inspector Mack?
Lock in your preferred date and morning/afternoon inspection window online. Guaranteed same-day digital delivery before 9:00 PM.
