Do you sell generators or just install them?

We're an installation contractor, not a dealer. You can buy from any reputable supplier; we recommend Generac and Kohler for standby units.

How long does install take?

Most whole-home standby installs are 1–2 days of electrical work, plus a separate gas hookup and a county inspection.

Will the generator run my whole house?

Depends on the size. A 22 kW unit will run most 2,000–3,000 sq ft homes including A/C. Smaller units use a sub-panel for essentials only.

Are you licensed to do generator install in Germantown, MD?

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

Do you handle aluminum wiring remediation in Germantown?

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 We rewire to copper, replace outdated panels, and document everything for insurance carriers.

Germantown, MD

Generator Install in Germantown, Maryland

Standby generators, portable inlet boxes, and automatic transfer switches - installed 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

Generator Installation in Germantown, MD - Pirro Electric

Generator Install in Germantown, MD is a bread-and-butter call for Pirro Electric. 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.

Recent Germantown work includes generator transfer switch installs - and we cover every corner of the city, from Milestone, Clopper Mill, Kingsview, and Churchill. Every job is permitted, inspected, and backed by our Maryland, D.C., and Virginia licenses.

Local Angle

Common Generator Installation Projects in Germantown

Between jobs around Milestone Shopping Center and the neighborhoods above, our Germantown crew is on the road every week.

Generator transfer switch installs

Neighborhoods servedMilestone · Clopper Mill · Kingsview · Churchill

ZIP codes20874 · 20875 · 20876

Scope of Work

What's Included

Every job in Germantown comes scoped, permitted, and inspected - no shortcuts.

Whole-home standby generator installation (Generac, Kohler, Briggs)
Automatic transfer switch (ATS) installation
Portable generator inlet boxes and manual transfer switches
Pad pouring and equipment placement coordination
Coordination with gas plumbers for natural gas / propane hookup
Load calculations and circuit prioritization
Generator service circuits and battery maintenance
Permitting and county inspection

FAQ

Generator Installation in Germantown - 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