How Much Does Rewiring a House Cost in Baltimore? [2025 Data]

From Baltimore’s historic row homes to its renovated townhouses, rewiring is a common project that homeowners need to budget for. Rewiring a house in Baltimore costs $1,676 on average, with most projects falling between $737 and $2,651. Home size and age, layout, and accessibility will impact the final price. This guide explains what Baltimore homeowners can expect when budgeting for a rewiring project.

Rewiring a House Cost Factors

If it’s the right time to upgrade your home electrical wiring, here’s a breakdown of what influences the final price.

Home Size

In Baltimore, homeowners can expect to pay between $2 and $4 per square foot to rewire a house, with pricing influenced by the home’s layout, accessibility, and the condition of its current wiring.

Materials

In Baltimore, the materials used during a rewiring project can play a major role in determining your final cost. Essentials for this project include wire, outlets, switches, and possibly a panel upgrade if deemed necessary by your electrician.

Investing in higher-quality materials, like fire-rated cabling or smart systems, may raise the price, but they add an additional layer of safety and functionality to a new wiring system.

Preparation and Cleanup

You can expect to spend up to $500 for post-project cleanup, depending on the electrician’s fee structure. Contractors usually cover simple site preparation, but homeowners should prepare the area by moving furniture, securing valuables, and minimizing the risk of dust or damage.

Electrician Pro Costs in Baltimore

In Baltimore, hiring a licensed electrician requires navigating Maryland’s permit rules, safety standards, and labor costs that can all influence your final price. From electrician fees to local taxes on materials and available warranties, here’s what you should know before rewiring a Baltimore home.

Licensing and Insurance

In Baltimore, all electrical work must be performed by an electrician who’s licensed by the Baltimore County Department of Permits, Approvals & Inspections (PAI) and registered by the county. Additionally, electricians are required to carry general liability insurance and, if they have employees, workers' compensation insurance. Be sure to verify these credentials before you hire.

Hourly Rates and Taxes

Local electricians in Baltimore charge an average of $50 to $100 per hour for labor. In Maryland, a state sales tax of 6% also applies to most materials and taxable services. Be sure to request a detailed estimate that clearly separates labor, materials, and all applicable taxes before starting your rewiring project.

Tipping

Electricians typically don’t expect tips, but a 5% to 10% gratuity can be a kind gesture for excellent service. If you prefer a non-cash way to express your gratitude, a strong review or personal referral goes an even longer way.

Warranties

Electricians often include a one- to five-year warranty that covers installation errors and faulty materials. If you're looking for longer protection, extended warranty plans are often available for a fee, but be sure to review the terms and compare the benefits to the price.

Does Rewiring a House Increase Home Value?

In Baltimore, rewiring your home, especially when it includes the cost of replacing knob and tube wiring and other outdated components, is a worthwhile upgrade that can increase both safety and resale value. The city’s historic rowhomes and early builds often feature outdated wiring that may deter buyers, raise concerns during inspections, or complicate insurance coverage.

Modernizing your home’s electrical system not only reduces safety risks but also signals to buyers that the home has been properly maintained. In Baltimore’s housing market, where charm and age often go hand in hand, rewiring can be a major selling point that helps your home move faster.

How Angi Gets Its Cost Data

Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We survey real Angi customers about their project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We pair this data with research from reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects. 

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