How Long Does a Panel Upgrade Take? Realistic Timeline for 2026
A typical 100A to 200A panel upgrade takes 3 to 6 weeks total in 2026, though the electrician's actual work is just 4 to 8 hours. The rest of the time goes to getting quotes, permit approval (3–14 days), and utility coordination for the power disconnection and reconnection.
If you have been told you need a panel upgrade before installing your EV charger, heat pump, or induction stove, you are probably wondering: how long will this actually take? The answer surprises most homeowners.
The electrician's work itself takes just one day — typically 4 to 8 hours. But the total project timeline from first phone call to completed, inspected upgrade is usually 3 to 6 weeks. In markets with utility backlogs or permit delays, it can stretch to 8 to 10 weeks.
Understanding what takes so long — and where you can speed things up — is the difference between planning your EV charger installation for next month versus next quarter.
- Complete timeline overview
- Stage 1: Getting quotes (1–2 weeks)
- Stage 2: Permit application and approval (3–14 days)
- Stage 3: Utility coordination (1–5 days)
- Stage 4: Installation day (4–8 hours)
- Stage 5: Final inspection (3–7 days)
- Common delays and how to avoid them
- How to get it done faster
- Frequently asked questions
⚡ Key Takeaways
- Total project timeline: 3–6 weeks in most US markets (best case: 2 weeks; worst case: 10 weeks)
- The electrician's actual work takes just 4–8 hours on installation day
- Permit approval is the most common source of delays — start the process immediately
- Utility coordination is the biggest wildcard — some utilities respond in 24 hours, others take 2+ weeks
- Do not wait until your EV charger is sitting in a box before starting the permit process
- If your utility needs to upgrade the service entrance, add 4–8 additional weeks to your estimate
Complete Timeline Overview
Here is the full process a 100A to 200A panel upgrade goes through, from first contact to flipping the breakers back on for the last time:
| Stage | Duration | Notes |
|---|---|---|
| Stage 1: Get 3 quotes from licensed electricians | 1–2 weeks | Do not skip comparison shopping |
| Stage 2: Permit application submitted | Day 1 after choosing electrician | Usually the electrician handles this |
| Stage 2: Permit approval received | 3–14 business days | Varies dramatically by municipality |
| Stage 3: Utility disconnect scheduled | 2–5 business days after permit | The biggest timeline wildcard |
| Stage 3: Utility disconnect day | 1 day | Power off 4–8 hours during work |
| Stage 4: Electrician installs new panel | 4–8 hours | The actual work |
| Stage 3: Utility reconnect | Same day or next day | Most utilities reconnect same day |
| Stage 5: Final inspection scheduled | 2–5 business days after install | Inspector visits to sign off |
| Stage 5: Inspection passed / permit closed | Same day as inspection (if passed) | |
| Total realistic timeline | 3–6 weeks | Best case 2 weeks; worst case 10 weeks |
Stage 1 — Getting Quotes (1–2 Weeks)
During this stage, every electrician you contact should come to your home to assess the job before quoting. A responsible electrician will not quote a panel upgrade over the phone without seeing your current panel, service entrance, and the complexity of the installation location.
What to provide to each electrician during their assessment visit:
- Your current panel size and location
- What you plan to add (EV charger, heat pump, etc.) and why you are upgrading
- Whether you have a detached garage or outbuilding that needs a subpanel
- Your utility company and account number (so they can check your current service size)
💡 Pro tip: Ask each electrician: "Does my utility currently deliver 100A or 200A service to the meter?" Homes built after about 1990 often have 200A utility service even if the indoor panel is only rated for 100A. If your utility already delivers 200A service, the upgrade is faster and cheaper — no utility coordination needed for the service entrance itself.
Stage 2 — Permit Application and Approval (3–14 Days)
⚠️ Never let work start without a permit. Unpermitted panel work is a serious problem. It can void your homeowner's insurance if there is a subsequent electrical fire. It will be flagged during a home inspection when you sell. And in some states, knowingly occupying a home with unpermitted electrical work transfers liability to the homeowner. The permit is not optional — it is protection for you.
Stage 3 — Utility Coordination (1–5 Days)
Stage 4 — Installation Day (4–8 Hours)
- Utility disconnects power at the meter (morning)
- Electrician removes the old panel
- New 200A panel is mounted and secured
- Service entrance conductors are connected to the new main breaker
- All existing circuit breakers are transferred to the new panel
- New circuits are added as needed (EV charger, etc.)
- Panel is labelled, tested, and documented
- Electrician calls utility for reconnection
- Utility reconnects — power restored
A straightforward 100A to 200A panel upgrade with a good crew takes 4–6 hours. Complex jobs can run a full day. The electrician should leave your home with:
- A fully labelled new panel with every breaker identified
- A completed permit card posted at the panel (required by most municipalities)
- Documentation of all new circuits installed
- Power fully restored and verified
Stage 5 — Final Inspection (3–7 Days After Installation)
Common Delays and How to Avoid Them
Understanding what causes delays lets you work around them proactively:
| Delay | Cause | Prevention |
|---|---|---|
| Slow permit approval | Municipality backlog | Ask electrician about typical local wait times; some areas offer expedited review |
| Utility scheduling backlog | High demand for disconnections | Start process early; some utilities allow online scheduling |
| Service entrance upgrade required | Old 100A utility service to meter | Ask electrician before signing contract whether utility upgrade is needed |
| Electrician unavailability | High demand in EV install market | Get on their schedule as soon as you sign, before permit even arrives |
| Failed first inspection | Code compliance issues | Use a licensed, experienced local electrician — ask about their first-pass inspection rate |
| Material delays | Supply chain for specific panels | Ask electrician if they have your panel brand in stock before scheduling |
| HOA approval required | Some HOAs require electrical permits | Check your HOA rules before starting; some require their own approval process |
How to Get It Done Faster
If you are on a tight timeline — for example, your new EV is arriving in two weeks — here is how to compress the process:
- Start immediately. Every day you wait before calling electricians is a day added to the end of the project. Call three licensed electricians today.
- Call the permit office directly. Ask your local building department what the current wait time is for residential electrical permit approval and whether expedited review is available. Some jurisdictions offer same-day or next-day approval for straightforward panel upgrades.
- Contact the utility proactively. You or your electrician can call the utility company before the permit is approved to ask about their current disconnection scheduling. Some utilities allow you to get on a waitlist before the permit comes through.
- Choose an electrician who is already familiar with your utility. Experienced local electricians often have utility contacts and can sometimes expedite the scheduling process.
- Consider a Level 1 charger as a temporary solution. While your panel upgrade is in progress, a Level 1 charger (standard 120V outlet) adds 3–5 miles of range per hour — enough to maintain day-to-day driving while you wait for the full installation.
First Step — Check If You Actually Need an Upgrade
Many homeowners find they have more headroom than expected. Run our free calculator before calling any electricians.
⚡ Run Free CalculatorFrequently Asked Questions
Q: Can I do the panel upgrade myself to save time?
A: The actual panel work must be done by a licensed electrician in virtually all US jurisdictions. In some states, homeowners can pull their own permit, but the electrical work itself requires a license. Attempting to work inside the main panel is extremely dangerous — the utility-side connections remain live even with the main breaker off. Do not attempt this yourself.
Q: Will I be without power during the upgrade?
A: Yes, for 4–8 hours on installation day. Your power will be off from when the utility disconnects the meter until they reconnect it after the work is complete. Most people schedule installation day for a weekday when family members are at work and school to minimise inconvenience.
Q: What happens if it rains on installation day?
A: Light rain does not stop panel work in most cases — the panel is inside the home. However, if the service entrance is being replaced (the weatherhead and conduit running outside to the meter), heavy rain may cause a delay. Your electrician will make the call based on safety.
Q: Can I combine the panel upgrade with EV charger installation on the same day?
A: Yes, and this is actually the most efficient approach. Your electrician can install both the new panel and the dedicated EV charger circuit in a single visit, with one permit application, one utility disconnection, and one final inspection covering both. Combined projects typically cost $200–$500 less than doing them separately.
Q: How long does a panel upgrade last before it needs replacing again?
A: A quality electrical panel from a major manufacturer (Square D, Siemens, Eaton) installed correctly should last 30–50 years under normal residential use. You are not making a temporary fix — you are making a long-term infrastructure improvement to your home.
Q: Does the panel upgrade increase my home's value?
A: Yes. A 200-amp panel is listed as a positive feature in real estate listings and is specifically checked by home inspectors. Studies of home sale data consistently show homes with upgraded electrical panels sell faster and at higher prices — particularly in markets with high EV adoption. The upgrade cost is typically recovered in full at resale.