1. Assess your home and plans
Tell us about an upcoming renovation, heat pump, EV charger or additional circuits. We review the existing equipment and calculate demand before recommending a panel-only replacement, a subpanel or a service upgrade.
Electrical Panel Upgrade in Tewksbury, MA
Panel replacement and service upgrades, planned around your home’s actual electrical needs. Serving Tewksbury from our Dracut location.
Panel & Service upgrades (100A to 400A) - 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
Is your panel keeping up?
Signs you may need a panel or service upgrade...
Adding an EV Charger or Generator
Adding EV charging? A load calculation comes first. Compatible load management, such as Stepwise, may allow charging without a service upgrade. Generator projects require an appropriate transfer arrangement and equipment assessment.
Burning Smell or Warm Panel
Heat or a burning smell near your panel is a serious fire hazard. Call us immediately - don't wait.
Still Have a Fuse Box
Have an electrician assess the equipment’s condition, available circuits and your planned loads. A home’s age alone does not establish whether the panel or service needs replacement.
Lights Dim When Appliances Run
Dimming or flickering can have several causes, including a circuit, connection or supply problem. Diagnosis comes before recommending a larger service.
Planning a Renovation or Addition
Bring plans for a kitchen remodel, finished basement, addition, heat pump or EV charger. We assess the added loads, circuit requirements and existing service before recommending equipment.
Breakers Keep Tripping
Repeated trips need troubleshooting. The cause may be an overloaded circuit, faulty equipment or a wiring problem; replacing the panel is not always the solution.
Why Tewksbury homeowners choose Sylvester Electric
On- time Guarantee
We respect your time. We arrive within the scheduled time window.
Upfront Pricing
We give you a firm price before we unscrew a single panel. No surprise hourly overages.
Family owned since '79
We aren't a franchise. We live in Dracut. We treat your home like it's our neighbor's—because it is.
Planning a Panel or Service Upgrade?
A real person will answer your call, no AI agent.
Call to discuss your project and scheduling availability.
What to expect from your panel or service upgrade
We believe in clear communication at every step. Here's exactly what happens when you hire Sylvester Electric for a panel or service upgrade in Tewksbury.
Planning electrical work in Tewksbury
A panel replacement changes the distribution equipment. A service upgrade increases the capacity available to the home and can involve the meter, service conductors and utility coordination. We identify which scope your project actually needs.
2. Plan the permit and utility work
Tewksbury’s Building Department directs electrical permit applications to its online permitting system. We plan the permit, inspection and any required utility disconnect or reconnect around the actual scope. Installation dates depend on the required coordination.
3. Prepare for installation
Have your project plans, equipment specifications and utility account information available. Share a photo of the closed panel and its label if safely accessible; do not remove covers. We explain access needs and the planned power interruption before work begins.
Could load management avoid a service upgrade?
Sometimes. For EV charging, compatible equipment such as Stepwise can manage charging demand when household loads are high. Suitability depends on a load assessment, equipment compatibility and the existing installation. Load management does not repair damaged equipment or guarantee that every home can keep its current service.
Sylvester Electric serves Tewksbury from our Dracut location. We use your home’s equipment and project plans—not assumptions about its neighborhood or age—to develop the recommendation.
Tewksbury panel upgrade questions
Do I need a permit for a panel upgrade in Tewksbury?
Plan for an electrical permit and inspection. Tewksbury directs electrical permit applications through its online permitting system. We confirm the requirements for your scope and coordinate any required utility work.
Does replacing the panel increase my service capacity?
Not by itself. A panel-only replacement can retain the existing service capacity. Increasing capacity may also require changes to service equipment, conductors and the utility connection. We explain the difference in your estimate.
Does my home need 200 amps or 400 amps?
A load calculation, the existing equipment and your planned appliances determine the recommendation. Square footage or the home’s age alone is not enough. We also assess whether additional circuits or compatible load management can meet the project’s needs.
How much does a panel upgrade cost?
A panel-only replacement and a full service upgrade have different scopes. The planning ranges below help compare them. Your written estimate depends on equipment, access, wiring, utility requirements and the agreed work.
How long will the power be off?
We explain the expected interruption after assessing your home and coordinating the project. Permit, inspection and utility scheduling can affect the timeline. Tell us about medical equipment or other critical power needs before scheduling.
What should I prepare before requesting an estimate?
Share the Tewksbury property address, your planned renovations or new equipment, and any symptoms you have noticed. If safely accessible, a photo of the closed panel and its label helps. Do not remove covers or touch exposed electrical parts.
Explore our Tewksbury electrical services or view our service-area directory.
How much does a panel or service upgrade cost in Tewksbury?
These Sylvester Electric planning ranges distinguish a panel-only replacement from a complete service upgrade. They are not a Tewksbury market average or a quote. Access, equipment, utility work and the final scope affect your written estimate.
Service upgrades — panel & meter
Replaces both the exterior meter base and interior panel. Required when upgrading your electrical service capacity.
Service type
Typical range
100-amp main service replacement
$4,700 – $5,700
100-amp to 200-amp upgrade →
$6,200 – $10,500
200-amp to 400-amp upgrade
$14,000 – $24,995
Panel replacements — inside panel only
Replaces the interior breaker panel only. No meter or exterior work involved. Common when the panel is outdated but service capacity is sufficient.
Service type
Typical range
100-amp panel replacement
$1,350 – $2,100
200-amp panel replacement
$2,195 – $3,495
Every home is different. Call us at (978) 957-3422 for a free in-home estimate — we'll give you an exact price before any work begins.
Call Us for your Electric Panel Upgrade in Tewksbury, MA
Honest work at fair prices. We handle everything from 60-year-old fuse boxes to full 400-amp service upgrades.
⚡ 200-Amp Service Upgrade
A 200-amp service may suit a home with increased electrical demand. The recommendation depends on the load calculation, existing equipment and planned additions.
⚠️ Federal Pacific & Zinsco Panel Replacement
If your panel is Federal Pacific or Zinsco, request an assessment of its condition and replacement options. We identify the actual equipment rather than assuming what is installed in Tewksbury homes.
🔋 400-Amp Service Upgrade
For projects whose calculated demand exceeds the available service capacity. Equipment selection, utility requirements and the proposed loads determine whether a larger service is appropriate.
🔌 Subpanel Installation
Need power in a detached garage, workshop, or addition? We install subpanels to get power exactly where you need it.
If you’re upgrading your panel, it may also be the perfect time to install a standby generator →
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Schedule your free panel upgrade estimate in Tewksbury
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.
Other Electrical Services we Offer in Tewksbury
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.
Upgrade your electrical service from the meter to the panel.
🔧 Other Electrical Services
Troubleshooting, breaker replacement, outlets, wiring issues.
Panel upgrades are often completed alongside other improvements. Our licensed electricians handle it all.
Master Electricians
Code Certified
Established 1979
Locally Owned