Can I live in the house during a whole-home rewire?

Almost always, yes. We stage the work room by room and keep power on in the occupied parts of the home overnight. We'll give you a day-by-day schedule of which circuits are dark so you can plan around the fridge, Wi-Fi, and bedrooms.

Is knob-and-tube wiring safe if it hasn't been touched?

Original, undisturbed knob-and-tube in open joist bays can technically be safe - but in practice almost every older DMV home has had insulation blown over it, junction boxes added, or grounded appliances plugged into ungrounded circuits. Once that's happened, the safe answer is to rewire. Most insurers now require it.

Do I have to rewire the whole house at once, or can I do it in phases?

Phased rewires are common - kitchen and primary bath first during a remodel, the rest of the house in a later phase. We'll map out the safest sequence so each phase is code-compliant on its own and the final phase ties cleanly into earlier work.

What parts of Rockville do you cover?

We cover all of Rockville's ZIP codes, 20850, 20851, 20852, 20853, and 20855, including Town Center, Twinbrook, King Farm, Fallsmead, College Gardens, Hungerford, Rockshire, and New Mark Commons. Our shop is a short drive up Rockville Pike from most of the city.

My Rockville home still has a Federal Pacific panel. Is that a problem?

It can be. Federal Pacific panels, common in Rockville's 1960s and 1970s split-levels, have a documented history of breakers failing to trip under fault conditions. We inspect them, explain what we find, and replace them with a modern panel sized for the house when it makes sense.

Rockville, MD

Whole-Home Rewiring in Rockville, Maryland

Knob-and-tube removal, cloth-wiring replacement, and ungrounded 2-prong circuit upgrades for older single-family and townhomes across DC, Maryland, and Northern Virginia.

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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

Whole-Home Rewiring in Rockville, MD - Pirro Electric

Pirro Electric brings 23 years of Maryland electrical experience to every whole-home rewiring job in Rockville. Rockville's housing stock runs from 1950s-60s ramblers in College Gardens and Twinbrook to 1970s split-levels and townhomes in Rockshire and New Mark Commons to dense new construction at Town Center and Pike & Rose. The older single-family sections still turn up aluminum wiring, original Federal Pacific and Zinsco panels, and 100-amp services that can't handle a modern kitchen, heat pump, and EV charger at once. Twinbrook and Hungerford also have pockets of two-prong ungrounded outlets left over from the original build. Along Rockville Pike, older strip-retail and mid-rise buildings need tenant fit-outs and feeder work as spaces turn over, while new residential towers near the Metro need EV-ready garage circuits. Every job here runs through Montgomery County DPS permitting, and Pepco is the utility for service coordination and meter work.

On any given month you'll find our trucks handling 200-amp panel upgrades in 1960s split-levels and aluminum-to-copper rewiring in townhome communities across Fallsmead, College Gardens, Hungerford, and Lincoln Park. We pull permits in Rockville, schedule inspections, and walk you through the work so nothing gets left to guess.

Local Angle

Common Whole-Home Rewiring Projects in Rockville

Between jobs around Twinbrook Metro and the neighborhoods above, our Rockville crew is on the road every week.

200-amp panel upgrades in 1960s split-levels
Aluminum-to-copper rewiring in townhome communities

Neighborhoods servedFallsmead · College Gardens · Hungerford · Lincoln Park

ZIP codes20850 · 20851 · 20852 · 20853 · 20855

Scope of Work

What's Included

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

Knob-and-tube (K&T) removal and replacement with modern NM cable
Cloth- and rubber-insulated wiring replacement
Ungrounded 2-prong outlet conversion to grounded 3-prong circuits
AFCI and GFCI protection brought up to current NEC code
Partial rewires staged into kitchen, bath, or addition remodels
Drywall-aware fish work to minimize wall openings in finished homes
Master-electrician permit pull and final county inspection
Post-rewire panel review with circuit mapping and labeling

FAQ

Whole-Home Rewiring in Rockville - Common Questions

Reviews

What Customers Say

Excerpts from verified Google reviews of Pirro Electric.

"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

"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

Read all reviews on Google

Nearby Areas We Serve

Same whole-home rewiring crew, next town over.

Whole-Home Rewiring in Gaithersburg, MD Whole-Home Rewiring in Potomac, MD Whole-Home Rewiring in Bethesda, MD Whole-Home Rewiring in Germantown, MD Whole-Home Rewiring in Silver Spring, MD

Related Services in Rockville

Often booked alongside whole-home rewiring.

Ready to Get Started in Rockville?

Free written quotes. Licensed & insured. Same-week scheduling for most projects.

Request a Quote (240) 510-3131