Verify Coverage Everywhere
Grid testing measures signal strength across every part of the building — confirming reliable radio communication for first responders even where concrete, steel, and low-e glass block signal.
Schedule a Consultation Why it matters on your project
No Passing Grid Test, No Certificate of Occupancy
If your building includes a Public Safety DAS, most Texas jurisdictions require a passing grid test before final inspection. A failed test late in the schedule means remediation, retesting, and delayed turnover.
Catch Gaps Before Inspection
Stairwells, basements, and mechanical areas are the most common failure points. Identifying weak zones early prevents costly rework and delays at final inspection.
Prove Code Compliance
Testing documents compliance with IFC 510 and NFPA 1221/1225 coverage requirements — the evidence your AHJ needs to approve occupancy.
Streamline Project Closeout
A complete report package — coverage maps, data logs, calibration records, annotated floorplans — is delivered ready for AHJ submission alongside commissioning documents.
IFC 510 · Emergency Responder Radio Coverage NFPA 1221 / 1225 · Emergency Communications Systems AHJ-Ready · Documentation for Final Inspection
How it works
The Grid Testing Workflow
Schedule testing after DAS installation and before final inspection — with buffer for retesting and AHJ review.
01
Define the Grid
Each floor is divided into uniform tiles — tighter in stairwells and critical life-safety areas.
02
Calibrate Equipment
Spectrum analyzers are tuned to your jurisdiction’s emergency radio frequencies.
03
Collect Data
Technicians walk every grid cell, recording signal strength and quality metrics.
04
Analyze & Remediate
Weak zones are identified and corrected — often during the same mobilization.
05
Report for AHJ
You receive a complete, submission-ready compliance package for approval.
The self-performed advantage
Why GCs Choose One Team Instead of Three Subs
✓
Single point of contact
One team owns the DAS build and the verification — no coordinating a separate testing sub.
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Faster turnaround
Coverage gaps are identified and corrected during the same mobilization, not weeks later.
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Cost control
Bundling installation and testing reduces subcontractor overhead and markup stacking.
✓
Local AHJ experience
Our technicians know regional code interpretations and approval processes across Texas.
✓
Consistent quality
Calibrated equipment and standardized procedures aligned with AHJ expectations, every time.
New on the NCS blog
Why Grid Testing Matters for Public Safety DAS — and What It Means for Your Next Project
What a grid test is, how it supports IFC 510 and NFPA 1221/1225 compliance, why stairwells and basements fail most often, and how self-performed testing streamlines closeout.
Get started
Have a Project with Public Safety DAS on the Spec?
Talk to our DAS experts about upcoming projects, grid testing scope, or a quote. Self-performed testing starts at $1,000, depending on building size and complexity.