Service Entrance Upgrade in Santa Fe, NM
Upgrade the outdoor electrical infrastructure that connects your Santa Fe home to the utility grid. Santa Fe Electrician replaces your meter base, service entrance cable, weatherhead, mast, and main disconnect — coordinating directly with PNM — to bring your property up to 200-amp or 400-amp service capacity for modern appliances, EV chargers, and home additions.
Upgrading Your Service Entrance in Santa Fe
A service entrance upgrade replaces the outdoor electrical infrastructure that delivers power from the PNM utility line to your home — the weatherhead, service mast, service entrance cable, meter base, and main disconnect. This is the equipment mounted on the exterior of your house, running from the point where PNM's service drop connects down through the meter and into your main disconnect. Many older Santa Fe homes, including historic adobe properties, were built with 60-amp or 100-amp service entrance equipment that is now undersized for modern electrical demands.
When your service entrance is undersized, corroded, or damaged, the utility connection itself becomes the bottleneck — no amount of indoor wiring work can deliver more power than the service entrance allows. Signs that your service entrance needs upgrading include a corroded or leaking meter base, a deteriorated weatherhead or mast, visible damage to the service entrance cable, or PNM flagging your equipment during a meter change. If you are increasing your home's total electrical capacity, the outdoor service entrance must be upgraded to match.
Santa Fe Electrician manages the complete service entrance upgrade — from PNM coordination and City of Santa Fe permits to installing the new meter base, service entrance cable, weatherhead, mast, grounding system, and main disconnect. We perform service upgrades throughout Santa Fe, including properties in Midtown, Guadalupe District, Canyon Road, Agua Fria, and Southside Santa Fe. We handle every step so the project is done safely, passes inspection, and gives your home the utility connection capacity it needs for years to come. Looking for an indoor panel replacement? See our Panel Upgrade service.
What's Included
- New meter base and enclosure
- Service entrance cable replacement
- Weatherhead and mast installation
- 200-amp main disconnect installation
- Grounding system upgrade
- PNM coordination and reconnection
- City of Santa Fe permits and inspections
Our Service Entrance Upgrade Options
Service entrance upgrades tailored to your Santa Fe property's utility connection needs.
100 to 200 Amp Service Entrance
The most common residential service entrance upgrade in Santa Fe. We replace the meter base, service entrance cable, weatherhead, and main disconnect to increase your utility connection from 100 amps to a full 200-amp service.
200 to 400 Amp Service Entrance
For larger Santa Fe homes, guest houses, workshops, or properties with multiple high-draw systems, we install 400-amp service entrance equipment — including a larger meter base, heavier service entrance cable, and CT metering — to support heavy electrical loads.
Overhead to Underground Conversion
Convert your overhead PNM service entrance to underground for a cleaner appearance and improved storm resistance. We trench the service line, install the underground conduit, and coordinate the PNM switchover.
Meter Base Replacement
If your meter base is corroded, damaged, or no longer meets PNM specifications, we replace it with a new meter enclosure that meets current utility and code requirements.
Service Mast & Weatherhead
We replace deteriorated or undersized service masts and weatherheads that connect your home to the PNM overhead lines, ensuring the attachment point is structurally sound and weatherproof.
Commercial Service Upgrade
Upgrade your Santa Fe business electrical service to support growing equipment needs, tenant buildouts, or code compliance. We install single-phase and three-phase commercial service systems.
How It Works
Our service entrance upgrade process from assessment to PNM reconnection.
Assessment & Planning
We evaluate your current service entrance equipment, inspect the meter base, weatherhead, mast, and service entrance cable, calculate your electrical load requirements, and determine the scope of work needed.
PNM Coordination & Permits
We submit applications to PNM for the service change and pull all required electrical permits through the City of Santa Fe. PNM coordination is critical because they must disconnect and reconnect their side of the service.
Installation
On installation day, PNM disconnects power. We replace the meter base, service entrance cable, weatherhead, mast, and main disconnect, and upgrade the grounding system. If an indoor panel is included in the project scope, circuits are transferred at this stage.
Inspection & Reconnection
We schedule the City of Santa Fe inspection. Once the work passes, PNM reconnects your service drop and installs a new meter. Your home is now operating on its upgraded service entrance with full utility capacity available.
Why Choose Our Service Entrance Upgrade
Santa Fe homeowners trust us for reliable, fully permitted service entrance upgrades.
PNM Process Experience
We know PNM's requirements, application process, and scheduling timeline for service changes. This experience eliminates delays and ensures your project moves forward on schedule.
Complete Turnkey Service
We handle every aspect of the upgrade — electrical work, PNM coordination, City of Santa Fe permits, inspections, and reconnection — so you have one contractor managing the entire project.
Future-Ready Capacity
We size your upgrade for both current needs and future plans — EV chargers, home additions, workshops, or solar installations — so you do not need another upgrade in a few years.
Minimal Downtime
We plan the work to minimize the time your power is off. Most residential service upgrades require only one day of power interruption, and we schedule PNM reconnection for the same day when possible.
Frequently Asked Questions
A panel upgrade replaces only the breaker panel inside your home. A service upgrade replaces everything from the PNM connection point to your panel — the weatherhead, service entrance cable, meter base, and main disconnect — along with the panel itself. If your existing service is 100 amps and you need 200 amps, you need a full service upgrade, not just a panel swap.
Power is typically off for 6 to 10 hours on installation day while we replace the service equipment and transfer circuits. PNM coordinates the disconnect in the morning and reconnects later the same day after our work is complete and the city inspection is passed. We schedule the work to minimize inconvenience.
Common signs include frequently tripping breakers, dimming lights when appliances turn on, no available breaker slots for new circuits, a corroded or damaged meter base, or plans to add high-draw equipment like an EV charger, hot tub, or workshop. If your home has 60-amp or 100-amp service, an upgrade to 200 amps is recommended for modern electrical demands.
Yes. PNM owns the meter and the service drop from the utility pole to your home. They must disconnect your existing service before we can work on the meter base and service entrance, and they reconnect and install a new meter after our work passes the City of Santa Fe inspection. We handle all PNM coordination on your behalf.
Helpful Resources
Learn more about upgrading your electrical system.
Ready for an Electrical Service Upgrade?
Contact Santa Fe Electrician for an assessment and estimate on your service upgrade.