When a breaker keeps tripping in your Bethesda colonial or half the outlets in a Silver Spring rambler go dead, you want someone who has seen that exact panel before. David Williams has wired and repaired homes across Montgomery County for more than 30 years, from the 1950s Capes near Wheaton to the newer builds out in Germantown. You get the price before the work starts, and the repair is backed by a 100% satisfaction guarantee.
What a service call actually looks like
Most calls start the same way: a breaker that won’t stay on, an outlet that quit, or lights that dim every time the HVAC kicks on. The job is to find the real cause, not just reset the switch. A breaker that trips the second you flip it back is doing its job — it’s telling you there’s a short or a ground fault somewhere on that circuit, and chasing it down is the actual work.
We trace the circuit, test under load, and tell you what we found in plain terms before touching anything billable. In a lot of Rockville and Olney homes the culprit is a backstabbed receptacle that’s worked loose behind the wall, or a 1970s panel that’s run out of room. You’ll hear the diagnosis and the flat price first — no meter running, no surprise at the end.
The wiring we run into across the county
Montgomery County housing tells you a lot before we open the panel. The mid-century Capes and ramblers around Silver Spring and older Rockville often still carry 60-amp service and the occasional Federal Pacific or Zinsco panel — both known to let breakers fail to trip, which is exactly why your lights flicker and nothing throws. Those get flagged, not patched over.
The split-levels and colonials built through the ’60s and ’70s in Bethesda, Potomac, and Olney frequently have aluminum branch wiring at the outlets and switches. Aluminum isn’t a teardown, but it does need the right repair: we pig-tail the connections with COPALUM-rated AlumiConn connectors so copper does the final contact, instead of hoping a warm outlet sorts itself out. Newer Germantown and Gaithersburg homes from the ’90s and 2000s are a different animal — usually AFCI/GFCI breakers nuisance-tripping or a loose backstab, not the wire itself.
Safety repairs that can't wait
Some symptoms are an annoyance and some are a warning. An outlet that’s warm to the touch, a faint burning smell near a switch, scorch marks on a plug, or a breaker that’s hot at the panel — those are on the short list of things we’ll tell you to stop using until it’s fixed. Loose neutrals are the sneaky one: they make lights brighten and dim on their own and can quietly cook electronics, and they show up often in homes that have had add-ons wired in over the decades.
For work that touches the service or requires sign-off, we pull the permit through Montgomery County DPS and meet the third-party inspector so it’s done to code and on the record — not because it’s faster to skip it, but because it’s your house.
Straight pricing, work that holds up
David Williams Electric is a licensed residential shop, Maryland license #11734, run by someone who has been doing this for over 30 years and still shows up to the calls. You get the number up front, so a dead-outlet fix in Gaithersburg costs what we quoted in Gaithersburg. Every repair carries a 100% satisfaction guarantee — if it isn’t right, we come back. That’s the whole arrangement, and it’s why a lot of these calls come from neighbors of people we’ve already worked for.
Frequently Asked Questions
My breaker trips the moment I reset it. Is that an emergency?
It can be. A breaker that won't stay on is sensing a short or a ground fault and protecting the circuit — repeatedly forcing it back is the dangerous move, not leaving it off. Leave that circuit alone and call us; tracing the fault is usually a same-visit fix once we find where it's grounding out.
Do you pull permits for electrical work in Montgomery County?
Yes. Anything touching the service, the panel, or new circuits goes through Montgomery County DPS and gets inspected by the assigned third-party inspector. Small troubleshooting repairs often don't require one, and we'll tell you up front which bucket your job falls in.
My 1960s Bethesda house has aluminum wiring. Do I need to rewire the whole thing?
Almost never. The accepted repair is to pig-tail the aluminum connections with COPALUM-rated AlumiConn connectors at each outlet and switch, so a copper tail makes the final contact. That addresses the actual failure point — the connection — without tearing open your walls for a full rewire.
Why do my lights flicker when the AC or dryer turns on?
A brief dip is normal, but persistent flickering or lights that brighten and dim on their own often points to a loose neutral or an overloaded, undersized service — common in older Silver Spring and Rockville homes still on 60-amp panels. It's worth checking, since a loose neutral can damage electronics over time.
How much will the visit cost?
You get the price before we start. We diagnose the problem, explain what's going on, and give you a flat number to approve — no meter running by the hour and no surprises on the invoice. Every repair is backed by our 100% satisfaction guarantee.
Serving Montgomery County
David Williams Electric provides service calls & repairs throughout Montgomery County, including Rockville, Bethesda, Silver Spring, Gaithersburg, Germantown, Potomac, Olney. Explore all Montgomery County electrical services or learn more about service calls & repairs across Maryland. Call (410) 781-4357 for a free, up-front quote.
