IFC §510 governs in-building public-safety radio coverage across our 13-state coverage area. New construction has clear acceptance-testing requirements at certificate-of-occupancy. Existing buildings face obligations under five specific triggers — plus statewide enforcement in Florida and the rolling adoption of IFC 2024 §510.2.
Or jump straight to the scoping tool:
Free · No login · Results in under a minute · Powered by Building Signal Check™
Educational scoping tool, not a code determination. Results are probabilistic estimates. Final determination is made solely by your local Authority Having Jurisdiction (AHJ). How this tool works · About our data · Terms
We design and install with manufacturers our customers trust. All installs comply with IFC §510 / NFPA 1225 / UL 2524 where applicable.
Credentials we hold
A representative sample of properties and brands Zion has serviced. Logos used with permission.
Verbatim from public Google reviews of Zion Fire Protection. Click through to read all 130.
"From the ladies that answer the phone to the owner, everyone at this business is super helpful and knowledgeable. They went above and beyond for us. They will definitely have our business from here on out."
"Zion was the kindest, most friendly, efficient experience. From the very first call inquiring about their services, they were so nice and willing to share their knowledge and recommendations."
"Great business for any fire related job. Commercial or residential. First rate service every time and very friendly, knowledgeable staff. Never disappointed with the service big or small."
"We have been using Zion at our church for a number of years. They always provided excellent services and exhibited professionalism. Thank you for your dedicated service in our community!"
From a single grid test to a full design-build, Zion runs every part of the ERCES lifecycle in-house — under one Texas license, one design platform, one accountable team.
We track ERCES code adoption and amendments across 691 jurisdictions in 13 states — Texas (260), Florida (127), California (81), Arizona (50), Oklahoma (50), Massachusetts (15, on 780 CMR §918, not IFC), plus 50 more across NY, IL, GA, NC, TN, WA, and CO. From Dallas to Miami, Los Angeles to New York, Phoenix to Atlanta, Boston to Cambridge. The same database powers our internal estimates and the public-facing Building Signal Check™ tool — with confidence ratings on every record.
Predictable, scheduled, AHJ-ready annual signal-survey testing. PCTEL-instrumented grid testing, deficiency reports, and Fire Marshal submittals — turnkey.
iBwave-certified design, UL 2524 BDA installation, and AHJ acceptance — sequenced so your CO doesn't slip. We close ERCES permits fast.
Fire alarm, sprinkler, special hazards, and BDA from one Texas-licensed contractor. One submittal, one inspection coordination, one accountable partner.
PCTEL-instrumented signal surveys per IFC §510.5.3. Pre-installation baseline or annual recertification.
iBwave-certified DAS layouts, antenna/cable schedules, AHJ frequency authorization, plan submittal.
UL 2524 listed BDAs (RSI / Honeywell / Fiplex), distributed antennas, fire-rated pathway, NEMA enclosures, full grounding.
Acceptance testing, AHJ submittal, monitoring integration, and annual recertification on a recurring schedule.
Joel Sadowsky founded Zion to solve a specific problem: building owners deserve a single Texas-licensed contractor who can run fire alarm, sprinkler, special hazards, and ERCES from one shop — without bouncing between subs and AHJs. The BDA / ERCES division is the newest pillar of that promise.
Texas's 2024 IFC adoption and Florida's January 2025 high-rise retrofit deadline pulled thousands of existing buildings into ERCES annual-testing scope. Enter your address and we'll tell you if yours is likely one of them — in 60 seconds.
Check your building →