Panel Upgrades in Germantown, Maryland
200-amp upgrades, heavy-ups, sub-panels, and Federal Pacific & Zinsco replacements - done to code and inspected.
DC Electrical Contractor #EM-40-0001168 · MD Master Electrician #7987 · VA Class A Contractor #2705198087 · EPA & OSHA Certified
Pirro Electric handles panel upgrades for homeowners, businesses, and property managers in Germantown, MD. Work is scoped on site, quoted in writing, permitted, and inspected before we call it done. Typical scope: 100-amp to 200-amp service upgrades ("heavy-ups"), federal pacific stab-lok panel replacement, and zinsco panel replacement.
Germantown grew rapidly from the late 1980s through the 2000s, so most homes have modern wiring - but original 100-amp services are now undersized for EVs, heat pumps, and home offices. We see a steady stream of 200-amp upgrades, EV charger installs, and panel replacements due to aging breakers.
When You Actually Need a Panel Upgrade
A 'heavy-up' - moving from 100-amp to 200-amp service - is one of the most common requests we get. You typically need one if you're adding an EV charger, a heat pump or mini-split, a hot tub, an addition, or if your existing panel is full and there's no room for new circuits.
If your panel is a Federal Pacific Stab-Lok or a Zinsco, the answer is simpler: replace it. Both panels have documented histories of breakers failing to trip during overcurrent - a known fire hazard and one that most insurers now flag during inspection.
Why Pirro Electric for Panel Work
Panel work is some of the highest-stakes residential electrical you can hire out - bad workmanship can quietly create fire hazards for years. We're licensed master electricians in MD, DC, and VA, fully insured, and we pull permits on every panel swap. No exceptions.
More detail on scope and pricing: our full panel upgrades & heavy-ups page or the electrical panel upgrade cost in the dmv guide.
What Affects the Price of Panel Upgrades & Heavy-Ups in Germantown
Every quote is written after an on-site look. These are the variables that move the number:
- Service size (100A → 200A vs. 200A → 400A)
- Overhead vs. underground service drop
- Meter base and service entrance condition
- Panel location (basement vs. exterior wall)
- Permit and county inspection fees
- Whether your current grounding system needs upgrades
Germantown Housing Stock
Predominantly 1990s-2000s townhomes and single-family homes on 200-amp copper service in planned communities like Milestone, Kingsview, Cloppers Mill, and Churchill Town Sector. Most are still on original panels while carrying added load from EV chargers, hot tubs, and home offices.
Permits & Utility Coordination in Germantown
Germantown is unincorporated Montgomery County, so permits route through DPS. HOA architectural review is typically required for visible exterior work such as EV-charger conduit and meter relocations.
Common Panel Upgrades & Heavy-Ups Projects in Germantown
- 100A → 200A service upgrades
- Level 2 EV charger installs
Neighborhoods servedKingsview · Churchill · Cloverleaf · Seneca Crossing
ZIP codes20874 · 20875 · 20876
What's Included
Every job in Germantown comes scoped, permitted, and inspected - no shortcuts.
- 100-amp to 200-amp service upgrades ("heavy-ups")
- Federal Pacific Stab-Lok panel replacement
- Zinsco panel replacement
- Main breaker panel and meter base swaps
- Sub-panel installation for additions and detached structures
- Whole-home surge protection at the panel
- Panel relabeling and circuit mapping
- AFCI and GFCI breaker upgrades
Panel Upgrades & Heavy-Ups in Germantown - Common Questions
What Customers Say
Excerpts from verified Google reviews of Pirro Electric.
"If you're thinking of going with Pirro - do it. You won't be sorry. I run a medium-sized HOA and wouldn't use any other company for our electric."
Amanda S.
Google Review · HOA Board Director"We use Pirro across our portfolio of 50+ commercial retail buildings. Excellent work, responsive, priced competitively, and they get it right the first time."
Timothy M.
Google Review · Commercial Property Manager"Pirro re-wired my whole townhouse, updated the panel, and replaced every outlet and switch. Professional, friendly, and on time. Couldn't ask for a better company."
JMW
Google Review · Verified HomeownerNearby Areas We Serve
Same panel upgrades & heavy-ups crew, next town over.
Related Services in Germantown
Often booked alongside panel upgrades & heavy-ups.
Ready to Get Started in Germantown?
Free written quotes. Licensed & insured. Same-week scheduling for most projects.