Understand what is
behind the walls.

A clearer path through an old house.

Dewiring is an independent editorial resource about the electrical systems inside older homes and the decisions involved in renewing them. We cover knob-and-tube wiring, replacement cables, preservation of original finishes, permits, inspections, contractor selection and electrification.

Our readers include homeowners, buyers, sellers and contractors. The aim is to make the next conversation more useful: what to ask, what evidence to request, which decisions depend on an inspection, and where official requirements can be checked.

Questions first. Sources second. Conclusions with limits.

Homeowner discussions help us find the questions that keep recurring. They do not establish electrical safety or legal obligations. Our guides distinguish personal experiences from government guidance, applicable local requirements and manufacturer instructions.

The current collection is researched editorial material, not a claim that its authors inspected your house. Requirements vary with location, adopted code, work scope and site conditions. No named engineer or electrician is presented as a reviewer unless that review has actually taken place.

What you will find here

Practical explanations, project checklists, scope comparisons and links to original sources. You can contact us about projects throughout the San Francisco Bay Area. The guides support research and planning; they do not provide online installation approval.