# Knob and tube blog

> Rule changes, seasonal timing and deadlines that affect older San Francisco and East Bay buildings with knob and tube wiring, and how a job runs.

URL: https://fogcitysfknobandtube.com/blog/

**Blog**

Timing, rule changes and deadlines that affect older San Francisco and East Bay buildings, and what a replacement looks like from start to finish. Fog City SF Knob and Tube manages each job; the electrical work is carried out by licensed and insured electrical contractors.

**Where**

San Francisco and the East Bay: Berkeley, Oakland, Alameda and Piedmont.

**Posts**

## Latest posts

- [News, October 30, 2026A California homeowners insurance non-renewal over knob and tube: what to do before the policy endsCalifornia gives at least 75 days' written notice before a non-renewal. How to use that window when the reason is old wiring.](https://fogcitysfknobandtube.com/blog/insurance-non-renewal-knob-and-tube/)
- [News, October 30, 2026Soft-story retrofits and electrical work: planning the rewire around the ground floorA seismic retrofit opens the same garage ceilings and walls that carry a building's wiring. What DBI's program covers, and how the electrical work fits around it.](https://fogcitysfknobandtube.com/blog/soft-story-retrofit-and-rewiring/)
- [News, October 30, 2026The 3R report and knob and tube: what San Francisco sale records show about wiringSale paperwork shows what was permitted, not what is in the walls. How to read the electrical permit record behind a 3R, and what California's new electrical advisory adds.](https://fogcitysfknobandtube.com/blog/3r-report-and-wiring/)
- [Illustrative Walkthrough, October 30, 2026What a knob and tube replacement looks like in a San Francisco flat: an illustrative walkthroughAn illustrative example, not a record of a completed job: how a typical replacement in a stacked two-flat building runs from start to finish.](https://fogcitysfknobandtube.com/blog/what-a-knob-and-tube-replacement-looks-like-in-a-flat/)