16-Unit Zinsco Panel Replacement & Service Modernization in San Francisco
Max Electric completed a major electrical modernization for a 16-unit apartment building on Gough Street, replacing outdated Zinsco panels and the house panel while relocating electrical equipment to a new code-compliant location.



Modernizing outdated electrical equipment in a 16-unit apartment building
This Gough Street project involved a full service modernization for an older San Francisco apartment building with 16 units. The property had outdated Zinsco panels and a house panel that needed to be replaced with modern service and distribution equipment.
Max Electric retained the existing underground electrical service where it made sense, then relocated the electrical equipment to a new code-compliant location. The project included electrical panel replacement and service equipment upgrades, distribution panels, and construction of a dedicated electrical room.
The goal was not only to replace old equipment, but to create an organized system that could serve all 16 units safely, fit within the building’s physical limitations, and remain practical for future service and maintenance.

What the building needed from the electrical upgrade
The project required new distribution equipment, a dedicated electrical room, careful conduit routing, and a layout that could serve 16 apartment units from a limited service area.
The electrical modernization was planned around service and distribution needs for all 16 units.
The scope included panel replacement, new service equipment, distribution pathways, and electrical room work.
The existing underground electrical service was retained while the equipment layout was modernized.
A dedicated electrical room was built to support the new service and distribution equipment.
Electrical services completed by Max Electric
The work combined Zinsco panel replacement, service equipment relocation, underground service planning, distribution equipment installation, and code-compliant electrical room construction.

Zinsco Panel Replacement
Outdated Zinsco panels were replaced as part of the building-wide service modernization.
House Panel Replacement
The house panel was upgraded along with the unit service equipment to support the new electrical layout.
Underground Service Planning
The existing underground service was retained while equipment was moved to a code-compliant location.
Electrical Room Construction
A dedicated electrical room was built to house new service equipment and distribution infrastructure.
Distribution Equipment Installation
New distribution panels and service equipment were installed to serve the 16-unit apartment building.
Multi-Unit Conduit Routing
Service conduits and distribution pathways were planned for all 16 units within a tight available area.
Code Compliance Upgrades
The equipment layout was relocated and rebuilt to meet current code requirements and improve service access.
Apartment Building Electrical Modernization
The completed work improved safety, organization, long-term serviceability, and building electrical capacity.


Fitting 16-unit distribution pathways into a tight San Francisco building
One of the biggest challenges was space. The garage entry area provided very limited room for service conduits and distribution pathways, yet the new system still had to serve all 16 apartment units and the house panel in a clean, code-compliant way.
The project required careful layout planning before installation. Every conduit route, equipment location, and bend had to be planned around the existing building conditions so the final electrical room would remain organized, accessible, and serviceable.
Available space reviewed
The team planned the electrical room layout around the narrow garage entry, existing structure, and underground service conditions.
Conduit pathways organized
Distribution routes were designed to serve 16 units while keeping the installation clean and readable.
Equipment relocated properly
The electrical equipment was moved to a new code-compliant location without abandoning the existing underground service.
A dedicated electrical room designed for clean service access
The new electrical room became the core of the modernization. It allowed the service equipment, distribution panels, meters, and conduit pathways to be organized in one dedicated area rather than being squeezed into an outdated or non-compliant layout.
Because the building had limited space, the layout had to be compact without becoming messy or difficult to service. Max Electric planned the conduit runs, bends, and equipment placement to maximize the available area while maintaining a professional installation.
What the new electrical room supports
The completed layout gave the apartment building a cleaner electrical foundation for unit service, house loads, maintenance, inspections, and future electrical work.

How the modernization was handled
The project required careful planning around existing underground service, equipment relocation, limited space, and distribution needs for a 16-unit apartment building.
Existing service reviewed
We evaluated the existing underground service, old Zinsco equipment, and available building space before finalizing the layout.
New layout planned
The service equipment was relocated to a code-compliant area with a dedicated electrical room and organized pathways.
Equipment installed
New service equipment, distribution panels, meter bank, house panel, and conduit routes were installed for the 16-unit building.
Final organization completed
The finished installation was arranged for cleaner access, professional appearance, and long-term maintainability.
The result: a cleaner electrical system for a 16-unit apartment building
Max Electric completed the Zinsco panel replacement and service modernization for the Gough Street apartment building, replacing outdated panels and building a new electrical room that could support the property’s current service needs.
The finished installation retained the existing underground service, relocated equipment to a code-compliant location, improved the organization of service conduits, and created a more professional electrical layout for all 16 units and the house panel.
Outdated Zinsco panels replaced
The old equipment was replaced with modern service and distribution equipment.
Underground service retained
The existing underground service was preserved while the electrical equipment layout was improved.
Clean electrical room completed
The new electrical room improved service access, organization, and long-term maintainability.


Electrical room, conduit pathways, and service equipment
The project required dense conduit routing, new service equipment, distribution panels, and careful organization inside a limited garage-entry area.





Need panel replacement or service modernization for an apartment building?
Max Electric helps property owners, HOAs, landlords, contractors, and building managers upgrade outdated electrical systems in older San Francisco buildings. From Zinsco panel replacement and service equipment relocation to electrical rooms, conduit routing, and distribution panels, our team plans the work around real building conditions.
Tell us about your building project
Share the property type, number of units, current panel condition, service layout, and upgrade goals. We’ll help identify the next practical step.
