Panel upgrades (100A to 200A+) - support modern appliances, heat pumps, home additions & more
Upfront pricing, no surprise bills | Trusted by 2,000+ MA & NH homeowners

Licensed & Insured
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Trusted Since 1979
Locally-Owned
Most older panels can't safely support a Level 2 EV charger or standby generator without an upgrade first.
Heat or a burning smell near your panel is a serious fire hazard. Call us immediately - don't wait.
Older Tewksbury homes with fuse boxes need an upgrade & most insurance companies now require it
Flickering lights when the AC kicks on means your electrical service is undersized for your home.
Kitchens, basements, home additions - new living space means new circuits, and that often requires a bigger panel.
Frequent trips mean your panel can't handle your home's demand - it's a safety issue, not just an inconvenience.





We respect your time. We arrive within the scheduled time window.
We give you a firm price before we unscrew a single panel. No surprise hourly overages.
We aren't a franchise. We live in Dracut. We treat your home like it's our neighbor's—because it is.

Most common residential upgrade.
Covers panel, labor, permit, and utilities coordination.
For older Tewksbury homes with fuse panels.
Range depends on existing wiring condition.
The most common upgrade. Replaces undersized 100-amp service with modern 200-amp capacity - handles today's appliances, EV chargers, and more.
Known fire hazards found in many older Tewksbury homes. We safely remove and replace these recalled panels.
For larger Tewksbury homes with high electrical demand. Ideal if you're adding solar, multiple EV chargers, or a large addition.
Need power in a detached garage, workshop, or addition? We install subpanels to get power exactly where you need it.
Most 100-amp to 200-amp upgrades in Tewksbury cost between $1,500 and $3,500 — covering the panel, labor, permit, and Eversource coordination. The exact price depends on your current setup. Sylvester Electric offers free in-home estimates so you know the exact price before any work begins. Call (978) 957-3422.
Yes — all panel upgrades in Tewksbury, MA require a permit and a town inspection. Sylvester Electric handles all permit filing and inspection scheduling as part of every job.
Most residential panel upgrades in Tewksbury are completed in a single day. You'll be without power for a few hours while the old panel is removed and the new one is installed and tested.
Most modern homes upgrade to a 200-amp panel, which handles today's electrical loads including EV chargers and home additions. Larger homes may benefit from a 400-amp service. Sylvester Electric recommends the right size during your free estimate.
Yes — Federal Pacific (FPE) and Zinsco panels are known fire hazards found in many older Tewksbury homes. They can fail to trip during overloads and many insurance companies now require replacement. Sylvester Electric safely removes and replaces these panels.
Yes — Sylvester Electric offers 24/7 emergency electrical service in Tewksbury, MA. Call (978) 957-3422 any time. A real person will answer.
Don't wait for a panel failure to force your hand. If your Tewksbury home is showing any of the warning signs above — or you're planning a project that needs more power — reach out to Sylvester Electric today.
Panel upgrades are often completed alongside other improvements. Our licensed electricians handle it all.
Level 2 home charger installation. We handle capacity checks, wiring, and permits.
🏠 Standby Generator Installation
Whole-home generator hookup with transfer switch. Be ready for the next outage.
⚡200-Amp Service Upgrade
Upgrade your electrical service from the meter to the panel.
🔧 Other Electrical Services
Troubleshooting, breaker replacement, outlets, wiring issues.
Master Electricians
Code Certified
Established 1979
Locally Owned