Rewiring a house in Brooklyn costs between $20,000 and $45,000 for a typical three-story brownstone, and that number swings hard based on the walls, the panel, and how much of the old wiring is still carrying load. Anyone who has priced the job knows the quotes land all over the map. A Brooklyn Electrician crew that opens plaster walls in Bed-Stuy every week sees the same three wiring generations over and over: knob and tube, ungrounded BX, and cloth-wrapped cable from the 1950s. Here is how the cost breaks down and what actually drives it.
What a Full House Rewire Includes
A full rewire replaces every branch circuit from the panel to the last outlet. The electrician pulls new copper conductors to each receptacle, switch, and light fixture, installs new boxes where the old ones are undersized or metal-fatigued, and lands everything on a new breaker panel. Kitchens get two 20-amp small appliance circuits plus dedicated lines for the refrigerator, dishwasher, and microwave. Bathrooms get a 20-amp GFCI-protected circuit. Bedrooms get AFCI protection. Window air conditioners, which half of Brooklyn still runs, each get their own circuit, and a 240-volt line goes in for the dryer or a future heat pump. The job also includes a grounding electrode system bonded to the water main, new smoke and carbon monoxide detector wiring, and a Department of Buildings electrical permit with inspection. In a house with a 1920s service, the electrician often finds the ground path running through gas pipe, which the job corrects too. Patching the plaster is a separate line item, and in a brownstone it is not a small one.
Knob and Tube Wiring Replacement Cost
Knob and tube wiring shows up in Brooklyn houses built before about 1940. The conductors run separately through ceramic knobs and tubes, with no ground and insulation that crumbles when touched. Insurers increasingly refuse to write policies on homes with active knob and tube. Replacing it costs more than replacing later wiring because the circuits were never organized by room, so a single fuse might feed a bedroom, a hallway light, and an outlet two floors down. The electrician has to trace every run before pulling anything. Expect $25,000 to $45,000 for a full knob and tube replacement in a three-story Brooklyn row house, with the top of that range for houses where the plaster ceilings stay intact and everything gets fished through from above and below.
Rewiring Cost per Square Foot in Brooklyn
Contractors in Brooklyn price rewires at roughly $8 to $15 per square foot. A 2,400-square-foot two-family in Crown Heights lands around $20,000 to $36,000 before patching. Frame houses in Bushwick and Flatbush with wood lath come in lower because the walls open and close easier than masonry and plaster. Attached brick row houses with party walls cost more, since the electrician can only fish from the front, back, and floors. Finished basements, cathedral ceilings, and tile bathrooms all add hours. Permits and inspections add a few hundred dollars, and the filing fee is the small part of that. A house that already has grounded BX in decent condition on some floors may only need a partial rewire, and that can cut the total in half.
The Electrical Panel and Con Edison Service
Most rewires in Brooklyn include a panel upgrade. A 60-amp fuse box or a 100-amp panel cannot carry the circuit count a modern rewire produces. A new 200-amp panel runs $3,000 to $6,000 installed, including the service entrance cable, meter pan, and main breaker. If the service drop from the pole or the underground service lateral is undersized, Con Edison has to upgrade it, and that scheduling can add weeks to the project. The electrician files the DOB permit and coordinates the Con Ed cut and reconnect. Houses with a Federal Pacific or Zinsco panel get the panel swapped first regardless of what else happens, because those breakers have a documented history of failing to trip under fault.
Partial Rewire vs Full Rewire
A partial rewire targets the worst circuits and leaves the sound ones alone. Kitchen and bathroom circuits, any remaining knob and tube, and ungrounded outlets where computers and TVs plug in are the usual priorities. The cost drops to $5,000 to $15,000. The trade-off is mixed wiring generations in one house, which future electricians will have to sort out, and insurance carriers may still flag the old sections. Sellers in Park Slope and Carroll Gardens often do a partial rewire before listing. Buyers who plan to open walls for a renovation anyway should wait and do the full job while the walls are open.
Take a Bed-Stuy owner with a four-story limestone, knob and tube on the top two floors, BX below, and a 100-amp panel that trips every time the window units kick on in July. A full rewire with a 200-amp upgrade comes in around $38,000 plus $6,000 for plaster repair, and the house is torn up for three weeks. A partial rewire of the top two floors and the kitchen runs about $14,000. The owner picks the partial, then opens the parlor floor walls two years later for a kitchen renovation and pays to have the rest done then. Plenty of Brooklyn houses get rewired in exactly that order.
Brooklyn Electrician
1425 Fulton St, Brooklyn, NY 11216
(929) 460-9789
Brooklyn,
NY
11216
