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.

Are you licensed to do whole-home rewiring 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 We rewire to copper, replace outdated panels, and document everything for insurance carriers.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

Whole-Home Rewiring in Columbia, 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.

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

Whole-Home Rewiring in Columbia, MD - Pirro Electric

Homeowners and property managers across Columbia, Maryland rely on Pirro Electric for whole-home rewiring. 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 Harper's Choice, Long Reach, Oakland Mills, and Owen Brown, our licensed electricians deliver the same permitted, code-compliant work that has kept us in business across the DMV since 2003. 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.

Local Angle

Common Whole-Home Rewiring Projects in Columbia

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

Aluminum wiring remediation in Wilde Lake & Harper's Choice

Neighborhoods servedHarper's Choice · Long Reach · Oakland Mills · Owen Brown

ZIP codes21044 · 21045 · 21046

Scope of Work

What's Included

Every job in Columbia 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 Columbia - 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 Laurel, MD Whole-Home Rewiring in Rockville, MD Whole-Home Rewiring in Silver Spring, MD

Related Services in Columbia

Often booked alongside whole-home rewiring.

Ready to Get Started in Columbia?

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

Request a Quote (240) 510-3131