How long does it take to rewire a house in Bethesda?

Most single-family rewires take one to two weeks from rough-in to final inspection. Homes with plaster walls and lath, like the ones often seen in Edgemoor and older sections of downtown Bethesda, take longer because access to wall cavities is limited. Before starting, you can ask us for a written timeline, so that the inspection schedule doesn't stall your renovation.

Do I need a permit to rewire my home in Montgomery County?

Yes. Montgomery County requires an electrical permit for whole-house rewiring under County Code Chapter 17, and the finished work is inspected against the current NEC. Skipping the permit can complicate a future sale, since buyers' inspectors routinely check county permit records for major electrical work on older Bethesda homes.

What does a whole-house rewire cost in Bethesda?

Cost depends on square footage, wall access, and whether the electrical panel needs replacing alongside the wiring. Homes with plaster and lath or finished basements typically cost more because of the extra labor to open and patch walls. Get a written, itemized quote so you know exactly what's covered before the crew starts.

Will rewiring damage the plaster in my older home?

Some opening is unavoidable, but a crew that knows Bethesda's older housing stock will run new cable through existing chases, attic space, and crawl access before cutting into original lath and plaster. Ask your electrician how much wall access the job actually requires during the walkthrough, not after the work has started.

Is knob-and-tube wiring actually dangerous?

Knob-and-tube itself isn't automatically hazardous, but it lacks a ground wire and was never rated for today's appliance load, and most Maryland insurers now decline coverage or charge higher premiums on homes that still have it active. If your Edgemoor or Chevy Chase-area home was built before 1950, an inspection will confirm whether it's still live anywhere in the walls.

What other electrical services does Mr. Electric of Bethesda provide?

Beyond whole-house rewiring, our crews handle electrical panel upgrades and heavy-ups, EV charger installation including WAVE chargers, whole-home surge protection, smart home and lighting control wiring, lighting installation , and dedicated circuits for kitchen appliances or home offices. Many rewire customers add a panel upgrade or surge protector in the same visit since the panel is already open. We also install interconnected smoke and CO detectors as part of most rewire projects, since older electrical systems rarely meet current code on their own. Beyond Bethesda, we also serve Takoma Park and Washington .

Does rewiring affect my Pepco service or meter?

A standard rewire inside the walls doesn't touch your Pepco meter or service line, but a panel upgrade alongside it might require a brief coordinated shutoff. We schedule any Pepco coordination in advance so you're not left without power overnight, and we handle that call directly instead of leaving it to you.

How do I get started on a rewiring quote in Bethesda?

Call or schedule a rewiring consultation online , and a licensed Mr. Electric of Bethesda electrician will walk the property, check electrical panel capacity, and confirm what's actually live behind your walls before quoting anything. We serve Bethesda along with Chevy Chase, Kensington, Silver Spring, and Potomac, and every quote is flat-rate and in writing before work begins.

Home Rewiring in Bethesda, MD

Mr. Electric of Bethesda rewires homes that were never built for today's electrical load. Our Bethesda electrician crews strip out knob-and-tube wiring, replace aluminum branch circuits, and run new copper from panel to outlet in colonials near Edgemoor, cape cods off Old Georgetown Road, and condos along Woodmont Avenue. Every rewire follows Montgomery County's permit process and the current NEC, with a written quote before anyone pulls a wire.

Residential
Commercial

Book Online

First Name*

Last Name*

Email*

Phone Number*

Street Address**

ZIP/Postal Code*

Yes! You can text me service reminders and other messages.

By checking this box, I agree to opt in to receive automated informational and promotional SMS and/or MMS messages from Mr. Electric, a Neighborly company, and its franchisees to the provided mobile number(s). Messages & data rates may apply. Message frequency varies. View Terms and Privacy Policy. Reply STOP to opt out of future messages. Reply HELP for help.

By entering your email address, you agree to receive emails about services, updates or promotions, and you agree to the Terms and Privacy Policy. You may unsubscribe at any time.

How a Whole-Home Rewire Works in Bethesda

Homes built before 1950 in Edgemoor and Battery Park often still have knob-and-tube circuits with no ground wire and brittle cloth insulation. Homes from 1965 to 1973 frequently have aluminum branch wiring instead, which loosens at connections and runs hot. We trace every circuit back to the panel, remove the old conductors, and pull grounded copper NM cable through the same stud bays whenever the wall cavity allows it.
A rewire is the right time to fix an undersized panel because lots of pre-1960 Bethesda homes still run on 60 or 100 amp service, which can't support a modern kitchen, a heat pump, and an EV charger all at the same time. To fix this, we'll make sure the new panel is the right size to match your home's electrical capacity, add dedicated circuits for high-draw appliances, and rough in extra capacity for future additions like a WAVE EV charger or a second HVAC zone.
Montgomery County's Department of Permitting Services requires an electrical permit for any whole-house rewire, and the work is inspected against the current NEC under County Code Chapter 17. We handle the permit filing, coordinate with Pepco when service capacity changes, and schedule inspections around the rough-in and final stages. Most single-family rewires in Bethesda run one to two weeks depending on wall access and how much of the original wiring is still buried behind plaster.

Why Bethesda Homeowners Choose Mr. Electric

Our team at Mr. Electric of Bethesda averages 20 years in the trade, is licensed through the Maryland Board of Master Electricians, and is trained to national standards. Locally owned, backed nationally, and covered by the Neighborly Done Right Promise^®: if a rewire isn't done right, we make it right. You get a flat quote by the job, never an hourly clock running while someone digs through a wall. Schedule an appointment with us today to get your home rewiring started.

Frequently Asked Questions About Home Rewiring in Bethesda, MD

Most single-family rewires take one to two weeks from rough-in to final inspection. Homes with plaster walls and lath, like the ones often seen in Edgemoor and older sections of downtown Bethesda, take longer because access to wall cavities is limited. Before starting, you can ask us for a written timeline, so that the inspection schedule doesn't stall your renovation.
Yes. Montgomery County requires an electrical permit for whole-house rewiring under County Code Chapter 17, and the finished work is inspected against the current NEC. Skipping the permit can complicate a future sale, since buyers' inspectors routinely check county permit records for major electrical work on older Bethesda homes.
Cost depends on square footage, wall access, and whether the electrical panel needs replacing alongside the wiring. Homes with plaster and lath or finished basements typically cost more because of the extra labor to open and patch walls. Get a written, itemized quote so you know exactly what's covered before the crew starts.
Some opening is unavoidable, but a crew that knows Bethesda's older housing stock will run new cable through existing chases, attic space, and crawl access before cutting into original lath and plaster. Ask your electrician how much wall access the job actually requires during the walkthrough, not after the work has started.
Knob-and-tube itself isn't automatically hazardous, but it lacks a ground wire and was never rated for today's appliance load, and most Maryland insurers now decline coverage or charge higher premiums on homes that still have it active. If your Edgemoor or Chevy Chase-area home was built before 1950, an inspection will confirm whether it's still live anywhere in the walls.
Beyond whole-house rewiring, our crews handle electrical panel upgrades and heavy-ups, EV charger installation including WAVE chargers, whole-home surge protection, smart home and lighting control wiring, lighting installation, and dedicated circuits for kitchen appliances or home offices. Many rewire customers add a panel upgrade or surge protector in the same visit since the panel is already open. We also install interconnected smoke and CO detectors as part of most rewire projects, since older electrical systems rarely meet current code on their own. Beyond Bethesda, we also serve Takoma Park and Washington.
A standard rewire inside the walls doesn't touch your Pepco meter or service line, but a panel upgrade alongside it might require a brief coordinated shutoff. We schedule any Pepco coordination in advance so you're not left without power overnight, and we handle that call directly instead of leaving it to you.
Call or schedule a rewiring consultation online, and a licensed Mr. Electric of Bethesda electrician will walk the property, check electrical panel capacity, and confirm what's actually live behind your walls before quoting anything. We serve Bethesda along with Chevy Chase, Kensington, Silver Spring, and Potomac, and every quote is flat-rate and in writing before work begins.

Residential & Commercial Services

Join Our Team

“We have the power to make things better” “That’s our mantra, not only for our customers electrical issues, but also you, a future team member”!

Start your career with us today. We offer exciting opportunities for growth and success in an important space.

View All Open Positions

Your Source for Local Home Service Experts

Neighborly brands repair, maintain, and enhance properties — to make life easier and more enjoyable for homeowners. Our consistency and quality work are the basis for everything we do, and are what make us a leader in the home services space, as we constantly strive to "be so remarkable, we become a beloved household name."

Learn More About Neighborly

Home Rewiring in Bethesda, MD

Book Online

How a Whole-Home Rewire Works in Bethesda

Why Bethesda Homeowners Choose Mr. Electric

Frequently Asked Questions About Home Rewiring in Bethesda, MD

Residential & Commercial Services

Electrical Safety

Repair

Installations

Lighting

Join Our Team

Your Source for Local Home Service Experts