San Francisco and the East Bay
Knob and tube 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.
- 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.
- 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.
- 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.
Find out what is still live in your walls.
Call or send a request with the age of the house and what prompted it.
Send a request
2141 Mission St
San Francisco, CA 94110
office@fogcitysfknobandtube.com
Tell us where the house is, when it was built and what prompted the question: an insurer, a sale, a remodel or an attic. The walk-through is planned around it.
Fog City SF Knob and Tube2141 Mission St
San Francisco, CA 94110
office@fogcitysfknobandtube.com