Behind the plaster of Manhattan's pre-war co-ops, condos and brownstones, a lot of apartments still run on the original cloth-insulated, ungrounded wiring they were built with. Precision Power rewires Manhattan homes the right way — knob-and-tube and aluminum branch wiring removed, grounded modern circuits installed, all coordinated with your building's board, alteration agreement and Con Edison.
Manhattan is a borough of pre-war buildings — limestone-trimmed co-ops on the Upper East and Upper West Sides, walk-up condos in Greenwich Village and Chelsea, and brownstones from Harlem to the West Village. Many were wired in the 1920s and 1930s and never fully rewired since. Open up a wall and you'll often find cloth-insulated conductors, two-prong ungrounded outlets, and in older buildings the occasional run of knob-and-tube hiding above a ceiling.
That wiring was fine for a radio and a few lamps. It was never meant to carry a modern kitchen, window AC units, a home office full of electronics and a bathroom full of grounded fixtures. Brittle cloth insulation and ungrounded circuits are a leading cause of electrical fires, and they're exactly what trips up an inspection or an insurance review when you renovate or refinance.
Rewiring in Manhattan is its own discipline. The work happens inside your unit, within the capacity the building feeds your apartment, and it almost always needs co-op or condo board approval and a signed alteration agreement before a single wall opens. We handle that paperwork, the DOB electrical filing and the Con Edison coordination — and we work cleanly around plaster, tight service closets and scheduled building access.
A rewire in a pre-war co-op is nothing like one in a suburban house. Here's where our Manhattan experience shows up.
We trace and replace cloth-insulated and ungrounded branch wiring behind plaster walls without gutting your apartment — pulling new grounded circuits through existing chases wherever the building's construction allows.
Co-op and condo boards require approval and a signed alteration agreement before any rewire. We prepare the scope, insurance certificates and DOB filing your board and managing agent expect — so the job gets a green light, not a stop-work.
We rewire inside your apartment, working within the service the building already feeds your unit — new dedicated circuits, AFCI/GFCI protection and grounded outlets — without touching the building's risers or other residents' power.
The warning signs, knob-and-tube and aluminum hazards, whole-home versus partial rewires, permits, Con Edison and inspection — all explained in one place.
Read the Full Wiring GuideLicensed electricians on call from the Financial District to Washington Heights.
"Our pre-war co-op on the Upper West Side still had cloth wiring and two-prong outlets throughout. Precision Power rewired the whole apartment with grounded circuits, got our board approval and alteration agreement squared away, and worked around the building's access hours. Clean work and zero drama with management."
From the Upper East Side to the Financial District — licensed electricians, upfront pricing, board approval, DOB permit and Con Edison coordination handled. Call now or email [email protected].