WIRELESS | ERCES & CELLULAR DAS SOLUTIONS

  • Cellular DAS ensures that everyone can make phone calls, including 911, all the time.
  • ERCES are mandated by code for most new commercial and residential buildings in the US.
  • IBWS provides ERCES consulting, engineering and project management services to general contractors, electrical contractors, and building owners for ERCES projects.
  • IBWS is UL and NICET Certified and advocates on your behalf with the Authority Having Jurisdiction (AHJ), contractors and other stakeholders to minimize the cost of ERCES.
  • IBWS can design and install both Cellular DAS and ERCES to ensure seemless cellular and radio availability.

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Solving wireless Signal Problems at your property

WE PROVIDE PRODUCTS & SERVICES TO CONNECT PEOPLE & THEIR DEVICES – SO THEY CAN REMAIN BOTH PRODUCTIVE & SAFE

ERCES

IBWS can provide a cost-effective ERCES for your property when mandated by local ordinances.

Cellular DAS

IBWS can provide a cost-effective solution for property owners who need a Cellular DAS at their location.

In-Building Wireless Solutions is a proud member of the Safer Buildings Coalition, and is proudly NICET Certified

Learn more about your local ERCES regulations on our interactive map –

 – Common ERCES codes and resources

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Education Center

NFPA 1225-2027 Makes Near-Far a Performance Requirement

A building's emergency responder communications system can meet 99% coverage in critical areas and 95% everywhere else, pass every individual radio test at commissioning, and still drop a firefighter's transmission at the worst possible moment. The cause is the...

NFPA 1225-2027: Major ERCES Changes to Watch

An overview of the new edition and what it could mean for California IBWS has reviewed the 2027 edition of NFPA 1225 against the 2022 edition, with particular attention to Chapter 18, In-Building Emergency Responder Communications Enhancement Systems, and the ERCES...

Two New IBWS Reference Guides: Cellular DAS and California ERCES

In-building wireless keeps getting more complicated, and the line between "nice to have" and "required by code" isn't always obvious. To help, IBWS has published two new 2026 reference guides. The short version: ERCES is usually about code compliance, while Cellular...

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...

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...