Arlington's housing stock from the 1960s through 1980s in neighborhoods like East Arlington and South Arlington often carries 100-amp or smaller panels that cannot safely support modern central air, electric vehicle chargers, or added kitchen circuits. Hot humid summers push air conditioning units to run longer, increasing the chance of overloaded breakers and tripped main disconnects during peak afternoon hours. Upgrading to a 200-amp panel requires pulling new service entrance cable from the utility connection point, often located on the side of the home facing prevailing winds that carry moisture and debris.
Tarrant County inspectors expect upgrades to meet current NEC requirements for arc-fault and ground-fault protection, especially when work touches bedrooms or outdoor receptacles. In North Arlington near the University of Texas at Arlington campus, many two-story homes have limited attic access, so running new feeders means working around existing insulation and HVAC ducts. Homeowners in Grand Prairie and Mansfield frequently request subpanel additions for detached garages or backyard workshops, which changes the load calculation and may require a new meter base if the existing one lacks sufficient capacity.
Soil movement common along the Trinity River corridor can shift foundations slightly over decades, stressing rigid conduit runs at the panel. Technicians check for corrosion on the neutral bar and lugs before any upgrade because high humidity accelerates oxidation on aluminum conductors installed in the 1970s. Proper torque on all terminations and labeling of every new circuit prevents callbacks when residents add hot tubs or pool equipment later.
Technician insight
In Arlington the thing that catches most people out with Electrical Panel Upgrade is the aluminum wiring and undersized neutrals in 1970s homes around South Arlington and near the river. Humidity speeds up corrosion on those connections so we always pull the meter and inspect the bus before quoting. Skipping that step turns a straightforward swap into an all-day job when the utility has to return.
South Arlington 1978 Ranch Home
Homeowner kept tripping the main breaker when both AC units ran during summer afternoons. We found a 100-amp panel with corroded aluminum neutrals. Replaced it with a 200-amp panel, new SER cable, and added two AFCI breakers. City inspection passed same week and no further trips occurred.
Electrical Panel Upgrade Services We Offer
✓Main Service Panel Replacement
Swap outdated 100-amp panels for 200-amp rated equipment to handle central air and added appliances common in Arlington homes.
✓Subpanel Installation
Add dedicated subpanels for garages, workshops, or backyard structures in South Arlington and Mansfield properties.
✓Service Entrance Cable Upgrade
Replace weathered or undersized service entrance conductors feeding panels in older North Arlington and East Arlington houses.
✓Panel Relocation
Move panels away from moisture-prone areas or to improve clearance in homes near AT&T Stadium and Globe Life Field.
✓Breaker and Bus Bar Replacement
Install new breakers and bus bars inside existing enclosures when full panel replacement is not yet required.
How it works
- 1
Load Calculation And Site Visit
Measure existing service size and calculate new loads based on Arlington home square footage, AC tonnage, and planned additions.
- 2
Utility Coordination
Contact Oncor to schedule any required meter pull or temporary service for homes in Downtown Arlington or near Six Flags.
- 3
Panel Removal And New Install
Disconnect power, remove old panel, mount new enclosure, and terminate all circuits with proper torque and labeling.
- 4
Inspection And Reconnect
Request city inspection, then restore power and test every circuit before leaving the property.
Pricing
Upfront written quotes provided after site visit during business hours.