For homeowners and businesses
When to call about knob-and-tube wiring
- condition of insulation and supports
- concealment by thermal insulation
- later splices and extensions
- grounding needs and wall access
How the work is handled
- 1Survey accessible wiring and affected areas.
- 2Identify immediate defects and project goals.
- 3Plan staged or renovation-linked replacement.
- 4Test new circuits and document the completed work.
Electrical permits and ESA notifications
Some electrical work requires an ESA notification. Read about electrical permits and ESA notifications before work begins. Your Licensed Electrical Contractor handles the applicable notification for their work.
