How long does it take to remove and replace an electric panel with a new one? | | 1-2 hrs | 2% | | 2-3hrs | 7% | | 3-4 hrs | 18% | | 4-5 hrs | 26% | | 5-6 hrs | 10% | | 6-7 hrs | 10% | | 7-8 hrs | 15% | | Unsure | 7% | | | | | Question: How long does it take to remove and replace an electric panel with a new one? Top Answer (26% of 38 votes): 4-5 hrs.
Answer: 6-7 hrs
Explanation: A full panel removal and replacement—same location, same service size, using existing wiring—typically lands in the 6–7 hour range. It’s a detailed, safety-critical process that involves far more than just swapping a metal box.
Why it takes 6–7 hours:
Utility disconnect and reconnect: SMUD or PG&E must shut off power at the service drop and return later to re-energize.
Removing the old panel: Circuits must be safely labeled, disconnected, and pulled out without damaging existing wiring.
Installing and mounting the new panel: The new enclosure must be leveled, secured, and aligned with existing conduit or service entry.
Transferring all branch circuits: Each circuit is trimmed, landed, torqued to spec, and organized to meet code.
Upgrading grounding and bonding: Most older homes need updated grounding electrodes, bonding jumpers, or water-pipe bonding.
Inspection and testing: The installation must pass city or county inspection before the utility reconnects power.
When it takes longer (7–8+ hours):
Damaged or short wiring that needs extension
Service mast or meter issues
Corroded grounding system
Tight or inaccessible panel locations
Multiple subpanels or add-ons
When it can be slightly faster (5–6 hours)
Clean, modern wiring
Straightforward like-for-like replacement
Easy exterior access
Summary
A professional panel replacement is a full-day job, with most landing in the 6–7 hour window once utility coordination, grounding upgrades, circuit transfers, and inspection are factored in. | | EcoWise Electric LLC | Answer: 5-6 hrs
Explanation: Depends on the existing installation and the number of circuits. | | G & H Electrical Services, LLC | Answer: 7-8 hrs
Explanation: I would anticipate having power off for a full day. When someone is removing/replacing a main electrical panel you do not know what you will run in to. The electrician may find damaged wires that need repair, he may have to reroute wiring, he may have to install new feeder wires. Also once the work is completed, when can the inspector make it to your location, when can the power company return to energize the panel? | | Electrical Services Plus LLC | | | ProMatcher | Answer: Unsure
Explanation: Very much depends | | Aegis Electric LLC | Answer: 7-8 hrs
Explanation: depends on amount of circuits in panel | | Electrical Services Inc. | Answer: 7-8 hrs
Explanation: Usually one business day is set aside for a change over to have plenty of time for unforeseen things that can and do arise | | D B Electric | | | ProMatcher | Answer: 4-5 hrs
Explanation: You must make sure you have all the wiring in order and seperate the 220 volt circuits or you could blow up an appliance or your new 65" TV. Experience is key. I usually tell people their ice wont melt before I'm done | | Advanced Electrical and Energy | Answer: 4-5 hrs
Explanation: When replacing a panel you will have to relabel all your circuits, and check every device in home to ensure proper operation. | | Seabreeze Electric | Answer: 4-5 hrs
Explanation: 100 amp to 200 Amp | | Gacem Electric | | | ProMatcher | Answer: 6-7 hrs
Explanation: It depends on how many circuits were added over the years, inspections, and the utility power company. | | LED Electrical Services |
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