How long does a panel upgrade take?

Most residential 100A-to-200A heavy-ups are completed in a single day, with power off for roughly 4–8 hours.

Do I need a permit for a panel upgrade?

Yes - every jurisdiction in MD, DC, and VA requires a permit and final inspection for service-equipment work. We handle both.

How do I know if I have a Federal Pacific or Zinsco panel?

Federal Pacific Stab-Lok panels usually say 'FPE' or 'Stab-Lok' on the cover. Zinsco panels often have colored breaker handles (red, blue, green). Send us a photo and we'll confirm.

Are you licensed to do panel upgrades in Silver Spring, MD?

Yes. Pirro Electric is fully licensed and insured to perform commercial and residential electrical work in Maryland, Virginia, and Washington, D.C., including Silver Spring. We pull all required permits and coordinate inspections with the local jurisdiction on every job.

Do you handle aluminum wiring remediation in Silver Spring?

Yes. Aluminum wiring remediation is one of our specialties for multi-unit buildings, condos, and single-family homes built in the late 1960s and 1970s throughout Silver Spring and the broader DMV. We rewire to copper, replace outdated panels, and document everything for insurance carriers.

Silver Spring, MD

Panel Upgrades in Silver Spring, Maryland

200-amp upgrades, heavy-ups, sub-panels, and Federal Pacific & Zinsco replacements - done to code and inspected.

Request a Free Quote (240) 510-3131

Licensed & insured 5.0 ★ on Google Family-owned since 2003

DC Electrical Contractor #EM-40-0001168 · MD Master Electrician #7987 · VA Class A Contractor #2705198087 · EPA & OSHA Certified

Panel Upgrades & Heavy-Ups in Silver Spring, MD - Pirro Electric

Homeowners and property managers across Silver Spring, Maryland rely on Pirro Electric for panel upgrades. Silver Spring is dense with mid-century single-family homes and 1960s–80s multi-unit apartment and condo buildings. Aluminum branch wiring, two-prong ungrounded outlets, and undersized panels are common. Downtown's older mixed-use buildings often need tenant electrical upgrades.

From Downtown Silver Spring, Woodside, Four Corners, and Takoma Park (adjacent), our licensed electricians deliver the same permitted, code-compliant work that has kept us in business across the DMV since 2003. 200-amp upgrades, heavy-ups, sub-panels, and Federal Pacific & Zinsco replacements - done to code and inspected.

Local Angle

Common Panel Upgrades & Heavy-Ups Projects in Silver Spring

Between jobs around Downtown Silver Spring Plaza and the neighborhoods above, our Silver Spring crew is on the road every week.

Emergency power loss & breaker replacement

Neighborhoods servedDowntown Silver Spring · Woodside · Four Corners · Takoma Park (adjacent)

ZIP codes20901 · 20902 · 20903 · 20904 · 20905 · 20906 · 20910

Scope of Work

What's Included

Every job in Silver Spring 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

FAQ

Panel Upgrades & Heavy-Ups in Silver Spring - Common Questions

Reviews

What Customers Say

Excerpts from verified Google reviews of Pirro Electric.

"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 Homeowner