Commercial Motorized Blinds & Shading
Automated shading across whole facades — glare control, solar heat rejection, and daylight harvesting at building scale.
Learn more →Commercial
Buildings that run themselves.
Offices, restaurants, retail, hospitality, multi-tenant, and worship spaces. Etrenzik designs and installs the low-voltage systems that make a commercial property efficient to operate, safe to occupy, and pleasant to be in — built to code, documented, and serviceable.
Commercial work has a different set of constraints than residential. Systems have to be code-compliant and inspectable. They have to be serviceable by someone who is not us. They have to tolerate turnover in the facilities staff. And they have to keep working during business hours, because downtime has a dollar figure attached.
That shapes how we design. We favor standards-based, well-documented systems over clever proprietary ones. We label everything and hand over as-builts. We phase work around your operating hours. And we coordinate with the architect, GC, electrical contractor, and AHJ from the beginning rather than showing up at the end.
Commercial Services
10 systems we design and support.
Networked Lighting Control
Code-compliant commercial lighting control — occupancy sensing, daylight harvesting, scheduling, and zone-level metering.
Learn more →Commercial Video Surveillance
Enterprise IP camera systems with the resolution, retention, and search tools to actually resolve an incident.
Learn more →Access Control & Credentialing
Credential-based door control with schedules, audit trails, and code-compliant egress — across one site or many.
Learn more →Building Automation & Integration
The layer that makes lighting, shading, HVAC, AV, and security behave as one building rather than five systems.
Learn more →Structured Cabling & Network Infrastructure
Certified copper and fiber, enterprise Wi-Fi, managed switching, and a properly built MDF — the platform everything else needs.
Learn more →Fire, Life Safety & Mass Notification
Detection, emergency communication, and mass notification integrated with access control, HVAC, and building systems.
Learn more →Conference Room & Presentation AV
Meeting spaces that connect on the first try — consistent across every room, and serviceable by your own staff.
Learn more →Distributed AV & Digital Signage
Any source to any display across the building — for restaurants, retail, hospitality, worship, and multi-zone venues.
Learn more →Sound Masking & Acoustic Privacy
Engineered background sound that makes open offices workable and conversations in private offices actually private.
Learn more →Not sure where to start?
Most projects begin with one system and grow. Tell us the problem you are trying to solve and we will tell you what it actually takes.