Is knob-and-tube wiring safe to keep?
Original knob-and-tube that is undisturbed, not buried in insulation, not spliced, and not overloaded can technically still function — but its insulation is decades past its service life and there's no ground. Most buyers, electricians, and Minnesota insurers treat active K&T as something to replace rather than keep.
How do you find knob-and-tube during an inspection?
We look in the attic, basement, and any open cavity for the telltale porcelain knobs and tubes and single cloth-covered conductors, test outlets for grounding, and check for old fuse panels. Wiring hidden inside finished walls is a limitation we note, since we don't open walls.
Will knob-and-tube affect my home insurance in Minnesota?
Often, yes. Many Minnesota insurers decline, surcharge, or require replacement of active knob-and-tube before binding or renewing a policy. Identifying it during the inspection lets you address it before it derails your closing.
Can I just add a ground to knob-and-tube?
No. There's no practical way to safely ground existing K&T, and the aging insulation remains the core problem. The accepted remedy is replacement with modern grounded wiring by a licensed electrician.
Is the wiring check part of the standard home inspection?
Yes. Electrical is one of the eight core areas of the standard 120-point home inspection, with no separate fee. Adding thermal imaging can help reveal overheating at concealed connections.
