Phoenix Electrical Panel Upgrades provides electrical panel services for homes and businesses throughout Tempe, Arizona. We install 200 amp and 400 amp services sized to existing equipment and planned additions. Subpanel installation brings circuits to workshops, garages, and pool equipment where the main service has adequate capacity. Our work also includes breaker repairs, outdated panel replacement, meter box replacement, and whole house surge protection.
Tempe's mix of 1950s-60s ranch homes, ASU-area rentals, and newer construction means electrical capacity varies from property to property. Cooling equipment, kitchen appliances, and new charging equipment can leave an older panel with little room for growth. We inspect the panel, service entrance, and grounding before recommending a repair or upgrade. Request a free estimate to understand the scope and cost for your property.
We serve Downtown Tempe, South Tempe, Warner Ranch, Corona del Sol, Broadmor, and properties near Tempe Town Lake. The assessment accounts for your building's wiring condition and the equipment you want to add.
Choose the service that matches your panel's condition and your next project. From replacing obsolete equipment to adding service capacity, our work begins with an assessment of the existing electrical load and service entrance.
Moving from a 100 amp panel to 200 amp service can create capacity for central AC, an electric range, a dryer, and planned additions. We check the load, service conductors, and grounding to determine what the upgrade needs. Most residential installations are completed in a single day. Explore Service →
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Larger homes, detached workshops, and buildings with heavy HVAC or EV charging loads may need 400 amp service. The installation can use twin 200 amp meter-mains or a single 400 amp rated service, with Salt River Project coordination for meter and transformer capacity. Explore Service →
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A subpanel brings circuits closer to a guest casita, detached garage, workshop, or pool equipment pad. We evaluate feeder distance, voltage drop, and the equipment it will serve, then size the installation to the available main-service capacity. Explore Service →
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Repeated trips or a breaker that will not reset call for diagnosis of the circuit, wiring, and breaker. We identify the cause and use UL-listed replacement components matched to the panel manufacturer when replacement is appropriate.
Some older homes near ASU, Maple-Ash, and Hudson Manor still have 60 amp fuse boxes. We convert these installations to breaker panels rated 100 to 200 amps as appropriate for the load, with grounding and bonding addressed in the project scope.
Federal Pacific Electric Stab-Lok panels can have breaker trip failures that are not apparent from the cover. These panels appear in homes built through the 1970s; our recommendation is full replacement rather than relying on their outward condition.
Zinsco and GTE-Sylvania panels can develop breaker and bus bar defects that prevent proper disconnection during a fault. We replace the panel and verify the connected circuits during the changeover.
Cracked, corroded, or undersized meter enclosures can become part of a panel upgrade's scope. We assess the meter box, arrange the permit, and coordinate Salt River Project's disconnect and reconnect around the replacement.
Monsoon lightning and grid voltage spikes can affect HVAC equipment, appliances, and electronics. We install UL 1449-listed surge protection at the panel and address NEC 230.67 requirements as part of new residential service work.
Restaurants, retail spaces, and offices near Mill Avenue and Tempe Marketplace can outgrow their original electrical capacity. We calculate projected demand for equipment and tenant improvements, coordinate with the City of Tempe Building Safety Division, and plan work around business hours where possible.
The right scope depends on more than the number printed on the main breaker. Consider panel condition, calculated demand, the service entrance, and upcoming equipment before choosing a repair, replacement, or capacity increase.
Include existing appliances and the equipment planned for a garage conversion, workshop, or commercial expansion. We use NEC Article 220 load calculations to assess service size, so the recommendation reflects the property's demand.
Thermal inspection and torque checks help identify loose lugs, failed neutral connections, corroded bus bars, and damaged breaker slots. We use those findings to explain whether a repair is appropriate or the panel needs replacement.
Panel capacity must be supported by the service conductors and meter equipment. Undersized or damaged conductors can require service-entry rewiring from the weatherhead to the panel, while meter condition can add replacement work.
An older grounding electrode system may need new ground rods and bonding as part of the upgrade. We assess NEC 250 grounding requirements alongside applicable AFCI and GFCI protection for the planned work.
Meter relocation may be needed for a remodel or clearance requirements. Identify that scope early because Salt River Project coordination and service changes can extend the project beyond a straightforward panel replacement.
An upgrade with added circuits can cost $4,000 to $7,000 or more, so compare what each estimate includes. For projects split between Tempe and Gilbert, AZ , arrange a separate assessment of each property's conductors, grounding, and panel access.
Repeated interruptions, aging equipment, and visible damage can have different causes. An inspection helps distinguish a circuit fault from a capacity problem or a panel that needs replacement, so the repair addresses the source of the issue.
Request a Panel InspectionSummer temperatures routinely exceed 110 degrees in Tempe, and air conditioning alone can draw 20 to 30 amps continuously. Pool equipment and kitchen appliances add demand, making the existing load an important part of any upgrade assessment.
Neighborhoods developed during Tempe's 1950s-70s growth can still have original fuse boxes or early breaker panels. Discontinued equipment and limited circuit capacity deserve review before adding modern appliances or expanding a rental property's electrical use.
A tripping breaker can point to an overloaded circuit, wiring fault, or defective breaker. We diagnose the cause before recommending replacement; a larger service alone may not resolve a problem within an individual circuit.
Scorching, corrosion, or damaged breaker connections can change whether a panel is repairable. A burning smell or visibly scorched panel needs prompt professional assessment, and we prioritize calls reporting these conditions.
Older installations may lack an adequate grounding electrode system or have loose lugs and failed neutral connections. The inspection includes grounding and bonding so those issues can be addressed alongside the panel work.
A workshop, EV charger, or heat pump can require circuits that an existing panel cannot accommodate. We review breaker space and calculated load together before recommending added circuits, a subpanel, or a service upgrade.
Local panel work combines electrical diagnosis with practical knowledge of the property's age, access, and utility connection. We explain the recommended scope, provide a written estimate, and coordinate installation and inspection steps.
From a 1965 fuse box to a 2018 400 amp commercial service, equipment age alone does not describe the whole job. Our work includes 1960s ranch homes near Papago Park, ASU-area rentals, and commercial suites along Rio Salado Parkway.
Our panel services are performed by licensed, insured electricians. Licensing can be checked through the Arizona Registrar of Contractors, while the on-site assessment gives you a chance to discuss the installation and the work it requires.
We provide a written estimate after inspecting the property and break out labor, materials, and permit costs. Underground service, older aluminum wiring, and difficult panel access are among the conditions that can change the scope.
A service upgrade requires coordination between the property owner, electrician, city, and utility. We organize the project around an assessment, a written scope, permits, installation, inspection, and final activation.
We review the equipment you use and any planned additions, then calculate the load. The inspection covers service entrance conductors, grounding, bonding, and signs of scorching, corrosion, or double-tapped breakers.
We explain the panel size and identify related work such as added circuits, grounding improvements, or a meter change. The written estimate accounts for the property's condition and access before installation begins.
We handle the electrical permit application through the City of Tempe Building Safety Division and schedule required inspections. Salt River Project coordination addresses the disconnect, meter work, and reconnect needed for the approved scope.
Installation follows the applicable National Electrical Code (NFPA 70), manufacturer instructions, and required connection torque. Conductor sizing references NEC Table 310.16, while the approved scope determines service-entrance, grounding, and circuit work.
We schedule the city inspections associated with the permitted work and confirm that the installation matches the approved plan. Inspection approval is part of preparing the service for permanent reconnection.
After inspection sign-off, we coordinate the Salt River Project reconnect. We label the circuits and walk you through the completed panel so the new circuit directory is clear.
Case Study 1: Older homes: A replacement project can address an obsolete panel, grounding deficiencies, and limited breaker space together. For a ranch home near Kiwanis Park or a condo along Apache Boulevard, the scope should match the actual equipment load.
Case Study 2: Workshops and additions: Plan the panel and added circuits together when converting a garage or supplying a detached workspace. Combining that work can avoid a separate mobilization and inspection for the additional circuits.
Case Study 3: Commercial improvements: A suite near ASU Research Park may need service capacity for expanded equipment use. Load calculations and an agreed work schedule help align the electrical upgrade with the planned tenant improvements.
Tell us about repeated breaker trips, an outdated panel, or equipment you plan to add. We will assess the existing installation and provide a written scope for the recommended panel or service work.
Find answers about project costs, capacity, permits, and installation planning. The final recommendation depends on the panel, service entrance, and equipment at your property.
Call Our ExpertsA typical straightforward 200 amp service upgrade costs $2,500 to $5,500. A full service change with meter relocation and extensive rewiring can reach $7,000 to $10,000. We inspect the existing conductors, grounding, and meter equipment before providing a free estimate for the actual scope.
When the service entrance already supports 200 amps, a panel-only upgrade often runs $1,300 to $2,500. New service conductors, grounding, or a meter base add to the scope. City permit fees are separate costs, and the written estimate breaks out labor, materials, and permits.
We handle the electrical permit application with the City of Tempe Building Safety Division and schedule the required inspections. The service-upgrade process includes rough-in and final inspections, with city approval and utility coordination before permanent reconnection. The work is planned around the approved scope.
It can be worthwhile when an older service is undersized for central AC, an electric range, a dryer, and planned equipment. A load calculation establishes whether the additional capacity is needed. Panel condition also matters, especially when a home inspection flags obsolete or damaged equipment.
Most Level 2 EV chargers draw 30 to 50 amps, and a heat pump adds to the home's electrical demand. We calculate the existing load plus the proposed equipment to assess whether 200 amp or 400 amp service is appropriate. The equipment's requirements and the existing installation determine the recommendation.
We recommend full replacement for Federal Pacific Stab-Lok and Zinsco panels because of their breaker and bus bar failure concerns. Replacing an individual breaker does not necessarily address the underlying panel defect. An inspection identifies the panel type and the work required for replacement.
Not always; the meter equipment must be compatible with the proposed service and in suitable condition. An undersized, corroded, or incompatible meter socket can make replacement necessary. We assess it during the initial inspection and coordinate any meter work with Salt River Project.
Larger homes, detached workshops, and buildings with substantial HVAC or EV charging loads may need 400 amp service. Panel work alone generally starts around $2,000 to $4,000, with service-entrance rewiring and other related work increasing the cost. A load calculation and utility review help establish the scope.
Most residential 200 amp upgrades are completed in a single day. Permit inspections, utility scheduling, service-entrance work, and meter relocation can affect the overall project timeline. Many breaker replacements and minor panel repairs can be completed on the day the issue is diagnosed.
Yes, a subpanel can bring circuits to those areas when the main service has adequate capacity. We consider the equipment load, feeder distance, and voltage drop when sizing it. The installation includes the required City of Tempe electrical permit.
Yes, circuits for an EV charger, workshop, or heat pump can be planned with the panel work. They add to the project scope, but completing both together can avoid a second mobilization and inspection. Include all planned equipment in the initial assessment.
An inspection can document the panel's brand, condition, and any code violations found. We also review the service entrance, grounding, bonding, and connected load when assessing an upgrade. Standalone inspections are available for home purchases, insurance requirements, or existing panel concerns.
Contact us promptly for professional assessment of a burning smell, scorched panel, or breaker that will not reset. We prioritize these calls to assess the reported hazard. The diagnosis determines whether the problem requires circuit repair, breaker replacement, or broader panel work.
Monsoon lightning and grid voltage spikes can expose appliances, HVAC equipment, and electronics to transient voltage. A surge protector installed at the panel helps limit those transients before they reach connected equipment. We assess surge protection as part of the panel or service project.
We work throughout Tempe, a Maricopa County city with 180,587 residents, including the ASU campus perimeter, South Tempe, Warner Ranch, Corona del Sol, and Broadmor. Service extends to properties near Mill Avenue, the Kyrene corridor, and Tempe Town Lake. We also travel to Mesa, Chandler, Scottsdale, and Phoenix for panel upgrades, subpanel installations, and meter box replacements.