Blog | Industry News | In-Building Wireless
IBWS CALIFORNIA ERCES JURISDICTION GUIDE 2026
Top 25 California Jurisdictions / Markets - ERCES Document Links, Codes, and Practical Notes ERCES requirements in California can vary significantly from one jurisdiction to another. While many jurisdictions adopt the California Fire Code and NFPA 1225, local...
The Building Is Lying To You: Why Many Modern California Buildings Quietly Undermine Emergency Communications
Modern California buildings are extraordinary. They can optimize HVAC systems automatically, dim lighting based on occupancy, monitor water consumption in real time, and track energy efficiency down to individual zones. Glass tint changes with sunlight. Elevators...
Why California ERCES Projects Keep Failing Inspection — and How to Fix That
Every year, ERCES projects across California stall, fail re-inspections, or incur costly rework — not because contractors lack their craft, but because California's compliance landscape is uniquely fragmented. If your projects are encountering unexpected roadblocks at...
Does Your Building Actually Need 5G?
The real question isn’t about speed — it’s whether your building is designed for how carriers operate today. The short answer is yes — but probably not for the reason you’re thinking. When building owners, developers, and contractors ask whether they “need 5G,” they...
Cellular DAS in 2026: Technical Considerations for Modern In‑Building Wireless Systems
Indoor cellular coverage has become more complicated despite the ongoing growth of nationwide 5G networks. The idea that simply increasing carrier density solves indoor coverage problems is no longer accurate. Modern building construction methods, changing spectrum...
Planning For ERCES Early: A Design Decision, Not a Field Fix
(Why early ERCES planning helps architects, contractors, life-safety trades and inspectors avoid late-stage disruption) Architects rarely intend to create problems downstream. Yet ERCES issues often appear late in a project, long after thoughtful design decisions are...
How Cellular DAS Boosts Property Value and Tenant Satisfaction
In today’s connected world, reliable cellular coverage inside a building is no longer a luxury—it’s an expectation. Tenants (or residents), guests, and staff all rely on strong mobile service for communication, safety, and productivity. Yet many commercial and...
From Garage to Penthouse: How We Map Radio Dead Zones in Your Building
When a firefighter, police officer, or EMT's radio goes silent inside your building, seconds can mean the difference between life and death. That’s why every ERCES (Emergency Responder Communication Enhancement System) project begins with a simple yet crucial...
IBWS – Our Approach
This blog has primarily focused on the issues and details of ERCES in California. This is an admittedly technical subject that those in the industry who read this probably don’t have friends and family eager to discuss with them. So, in the interests of taking a break...