Straight answers on old house wiring.

Written from real jobs and real questions in Cecil County. If a topic you need is missing, call and ask; the answer is free either way.

August 1, 2026

Attic Insulation Over Knob and Tube Wiring

Insulation crews will not blow a single bale over live knob and tube, and for good reason. What the code says, how to find out if your attic wiring is even live, and the order of work that saves money before heating season.

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