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 Fairfax, VA?

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

Do you handle aluminum wiring remediation in Fairfax?

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 We rewire to copper, replace outdated panels, and document everything for insurance carriers.

Fairfax, VA

Panel Upgrades in Fairfax, Virginia

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 Fairfax, VA - Pirro Electric

Homeowners and property managers across Fairfax, Virginia rely on Pirro Electric for panel upgrades. Fairfax County's huge stock of 1970s–80s single-family homes and townhomes carries a lot of aluminum branch wiring, original Federal Pacific panels, and 100-amp services that are now overloaded by EVs and HVAC upgrades. Commercial corridors along Route 50 and Route 29 need steady tenant fit-out work.

From Fairfax City, Mosaic District (Merrifield, adjacent), Fair Oaks, and Burke (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 Fairfax

Between jobs around George Mason University and the neighborhoods above, our Fairfax crew is on the road every week.

Federal Pacific & Zinsco panel replacements

Neighborhoods servedFairfax City · Mosaic District (Merrifield, adjacent) · Fair Oaks · Burke (adjacent)

ZIP codes22030 · 22031 · 22032 · 22033 · 22034 · 22035

Scope of Work

What's Included

Every job in Fairfax 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 Fairfax - 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