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 Columbia, MD?

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

Do you handle aluminum wiring remediation in Columbia?

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 Columbia and the broader DMV. We rewire to copper, replace outdated panels, and document everything for insurance carriers.

Columbia, MD

Panel Upgrades in Columbia, 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 Columbia, MD - Pirro Electric

Homeowners and property managers across Columbia, Maryland rely on Pirro Electric for panel upgrades. Columbia's village-by-village development from the late 1960s through the 1990s means many original homes have aluminum branch wiring, Federal Pacific or Zinsco panels, and undersized services. The Town Center redevelopment has driven a lot of recent commercial fit-out work.

From Long Reach, Oakland Mills, Owen Brown, and King's Contrivance, 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 Columbia

Between jobs around The Mall in Columbia and the neighborhoods above, our Columbia crew is on the road every week.

Federal Pacific & Zinsco panel replacements
200-amp service upgrades

Neighborhoods servedLong Reach · Oakland Mills · Owen Brown · King's Contrivance

ZIP codes21044 · 21045 · 21046

Scope of Work

What's Included

Every job in Columbia 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 Columbia - 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