Whole-House Surge Protection in Maryland

Permit requirements depend on the job and on your city or county, not just the state. Work involving a panel, a service change, new circuits or wet locations almost always needs one, and the inspection is carried out locally. Ask the contractor to confirm and to file it.

Licensed residential electricians generally charge in the $50 to $150 per hour range in 2026, plus a service call fee of roughly $75 to $200. Most companies now price common jobs flat-rate rather than hourly, which means the number you are quoted is the number you pay if the scope does not change.

Whole-house surge protection in Maryland is performed by licensed electrical contractors working within their own local service areas. The network covers 421 ZIP codes here, and requests are routed by address rather than by city name.

Many contractors give a free estimate on planned work such as a panel replacement, charger install or rewire, while diagnostic visits for an unknown fault usually carry a trip fee that is often credited toward the repair. The exact policy varies by contractor, and it should be confirmed on the phone before anyone travels.

Permits are commonly required for panel replacements, service upgrades, new circuits, and work in wet locations like kitchens, bathrooms and outdoors. Simple device replacements often do not need one. Because requirements are set locally, the safest approach is to ask the contractor who will pull the permit and confirm the inspection record afterwards.

The highest volume comes from Baltimore, Silver Spring, Bethesda, Annapolis, Gaithersburg and the surrounding suburbs, which is where the densest housing stock and the oldest wiring systems tend to be.

Workmanship warranties are set by the contractor, and one to two years on labour is common on larger jobs, with manufacturers covering the equipment separately. Ask for the warranty terms in writing on the invoice, not verbally.

The national 2026 range for this work is $300 to $900. Expect Maryland pricing to sit somewhere in that band, adjusted for local labour rates, permit fees and how accessible the wiring is. Ask for a flat price per task rather than an hourly estimate.