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Electrical Service Panel

100A → 200A
Panel Upgrades.

Your panel is the heart of your home's electrical system. If it's old, undersized, or maxed out, everything else suffers — flickering lights, tripped breakers, no room for an EV charger or mini split. We upgrade it the right way: permitted, inspected, code-compliant, warrantied.

1DAY Typical Job

200A Most Common

1YR Warranty

100% Permitted

Get a Free Estimate (774) 261-3924

Most Common 200A Service

MA License #57377

Real Job · Worcester

Clean install. Code compliant.
Inspection passed.

Why You Might Need One

6 Signs It's Time
for an Upgrade.

Most homeowners don't think about their panel until something goes wrong. If any of these sound familiar, your panel is probably overdue for an upgrade.

01

You Have a 100A Panel

Most older homes still have 100-amp service. Modern households with EVs, mini splits, hot tubs, or kitchen renovations need 200A. Period.

02

Breakers Trip Often

If you're regularly resetting breakers when the AC, microwave, or hairdryer kicks on — your panel is undersized for your actual electrical load.

03

Planning an EV Charger

Level 2 EV chargers pull 40–50 amps continuously — that's almost half a 100A panel. Most homes need a panel upgrade first.

04

Adding to Your Home

Kitchen reno, basement finish, master suite addition, mini splits, hot tub? Each adds significant load. Time to make sure your panel can handle it.

05

Old Federal Pacific or Zinsco

If your panel says Federal Pacific Electric (FPE) or Zinsco, it's a known fire hazard. These should be replaced — full stop.

06

Selling Your Home

An undersized or outdated panel shows up in inspection reports and can scare off buyers. A clean 200A panel is a strong selling point.

Worcester Insight

A huge percentage of Worcester-area homes — especially the three-deckers, Colonials, and ranches built before 1990 — still have original 100-amp service. If your home is 25+ years old and you've never upgraded, your panel is the most likely culprit behind any electrical problem.

What's Included

Every Panel Upgrade
Includes This.

No surprise charges. No "we forgot to mention." Here's exactly what your panel upgrade quote covers.

Standard Inclusions

Everything You Get

New 200A Service Panel Square D, Eaton, or Siemens — code-compliant residential panels with proper labeling.
New Service Mast & Meter Socket Replace exterior mast, weatherhead, and meter socket if needed for the upgraded service.
Service Entrance Cable Upgrade Replace undersized service entrance wires from meter to panel with properly sized 4/0 aluminum or 2/0 copper.
All New Breakers Match each circuit to a properly sized breaker. AFCI/GFCI breakers added where current code requires.
Proper Grounding & Bonding New ground rods, water pipe bonding, and proper system grounding to current NEC standards.
Permit Pulled & Filed We handle the permit application and filing with your town — you never deal with town hall.
Utility Coordination (National Grid / Eversource) Disconnect/reconnect arranged with your utility. Power off only as long as needed for the swap.
Final Inspection & 1-Year Warranty Town electrical inspector signs off. Workmanship covered under our 12-month warranty.

Capacity Doubled

From 100A → 200A

Before

100 Amps

Outdated. Maxed out. No room for EV chargers, mini splits, or kitchen reno loads.

After

200 Amps

Modern. Future-proof. Room for everything — EV charger, mini splits, additions, hot tub.

Most homes upgrade to 200A. Some go to 400A for very large homes, ADUs, or homes with multiple EVs and electric heat. We'll size it right at the estimate.

Day Of Install

What Happens
on Install Day.

Most panel upgrades wrap up in a single day. Here's what to expect, hour by hour.

01

7–8 AM

Arrival & Walkthrough

Confirm scope. Lay drop cloths. Protect your space.

02

8–9 AM

Power Disconnect

Utility pulls meter. Your power goes off briefly.

03

9–11 AM

Old Panel Removed

All circuits labeled. Old panel taken out cleanly.

04

11 AM–2 PM

New 200A Installed

New panel mounted. Service cable + breakers wired.

05

2–3 PM

Power Restored

Utility reconnects. We test every circuit one by one.

06

3–4 PM

Inspection & Done

Town inspector signs off. Cleanup. You're back online.

Heads-Up: You'll Be Without Power for Several Hours

Your electricity will be off from roughly 8 AM until 2–3 PM while we swap the panel. We schedule with weather and your daily routine in mind. Plan to be home, work remotely, or run errands during the day.

Common Questions

Panel Upgrade FAQs.

Typically 4–6 hours, usually from around 8 AM until 2–3 PM. We coordinate the disconnect and reconnect with your utility (National Grid or Eversource) to minimize downtime. Plan to be home or work remotely for the day.
Always. Panel upgrades are permit-required work in Massachusetts. We pull the permit, file it with your town, and arrange the final inspection by your local electrical inspector. You never deal with town hall — and you get the inspection sticker as proof the work meets code.
200A is plenty for most homes — even ones with EV chargers, mini splits, and modern kitchens. Larger homes (4,000+ sqft), homes with electric heat, accessory dwelling units (ADUs), or multiple EVs may need 400A service. We do a full load calculation at the estimate to right-size it.
We minimize wall and exterior damage as much as possible — most installs require only minor patching around the panel and meter. We don't do drywall finishing or paint touch-up, but we'll leave clean cuts that are easy for you (or any handyman) to finish. If significant patching is needed, we'll tell you upfront at the estimate.
Possibly. The federal Inflation Reduction Act includes tax credits for panel upgrades when paired with qualifying energy improvements (EV chargers, heat pumps, solar). Massachusetts also offers Mass Save rebates for some upgrades. We're electricians, not tax advisors — talk to your accountant or check massave.com / energy.gov for details specific to your situation.
Cost depends on your home's specifics — current panel size, location, condition of the service mast, and any extras (sub-panels, surge protection, AFCI/GFCI upgrades). The only way to give you an honest number is to see the job in person. Estimates are free and you'll get a written, itemized quote before any work begins.

Ready to Upgrade?

Let's Get Your
Panel Upgraded.

We'll come out, look at your panel, do a full load calculation, and give you a free written estimate. No pressure, no upselling. Just an honest number for honest work.