Panel work performed as careful, lasting craft — never as an assumed upgrade.
A homeowner contacted us about a property he had owned in Phoenix for nineteen years. The panel had been installed during construction in 1986. He had received three quotes from other contractors over the previous two months, all of them recommending a 200-amp service upgrade, all of them quoting prices within a few hundred dollars of each other, and none of them — by his account — having performed an actual load calculation before quoting.
He asked whether we would do something different. We performed the load calculation, walked the panel cabinet, and discovered something the previous quotes had missed: the home's actual electrical demand sat well below the threshold that justified a 200-amp upgrade. The flickering lights he had been experiencing were caused by a degraded neutral connection at the meter base, not by panel undersizing.
That sequence is a useful illustration of how panel work should be approached. The right answer depends on the actual condition of the panel, the actual demand of the home, and the actual reasons the homeowner is considering the work.
For EV chargers, heat pumps, induction ranges, and additions. Full replacement of meter base, service entrance conductors, main breaker, and panel. Completed in one day in most Phoenix homes.
Click Here to Call (888) 355-9624End-of-life panels with corroded bus bars, rust, or failed components. Complete modernization with new labeled circuit directory and torque-verified connections.
Click Here to Call (888) 355-9624Critical safety replacements for defective panels known for failure-to-trip issues. Insurance carriers in Phoenix increasingly require removal of these panels.
Click Here to Call (888) 355-9624For additions, workshops, garages, basements, and in-law suites. 60A, 100A, and 125A sub-panels with proper feeder cable and grounding.
Click Here to Call (888) 355-9624Weather-exposed conductors from utility to meter to panel. UV, ice, and corrosion damage repaired or replaced with full utility coordination.
Click Here to Call (888) 355-9624Targeted repairs instead of full panel replacement when appropriate. Full panel diagnostics and honest load calculations first.
Click Here to Call (888) 355-9624The total cost of a residential panel upgrade in Phoenix is built from five categories: panel and breakers, service entrance materials, labor, permit/inspection fees, and utility coordination. The breakdown is presented before any work is authorized.
"I'd received quotes from three other electrical contractors... The technician from 4 Masters' actually performed the load calculation in front of me and discovered that my situation didn't justify the upgrade... Six years later when I bought an EV, I called them back."
— Howard Pemberton
"Our insurance carrier issued a non-renewal notice citing a Stab-Lok panel... 4 Masters' performed the load calculation, pulled the permit, and completed the panel upgrade in one day. Policy renewed on schedule."
— Margaret Donatello
Provide the actual reason for the upgrade, photographs of the existing panel, future planned loads, and utility account information. These details allow meaningful upfront planning.
We perform honest diagnostics. If your panel is fine, we tell you. If it needs work, you get clear data and transparent pricing.
Click Here to Call (888) 355-9624Most residential upgrades in Phoenix complete in one full day on-site, plus the local jurisdiction's inspection window.
Yes, for the install window — typically the bulk of the work day. We coordinate timing with you and the utility.
For Federal Pacific, Stab-Lok, Zinsco replacements, most carriers require documented replacement. We provide all required paperwork.
Yes. A 200-amp panel typically supports a Level 2 EV charger comfortably. We size upgrades with future loads in mind.