Knob and Tube Replacement MN: Historic Home Rewiring
Preserve the Charm.
Update the Safety.
We specialize in rewiring historic plaster-and-lath homes. We replace dangerous knob and tube wiring with modern grounded copper—without turning your walls into Swiss cheese.
Most insurance carriers will no longer write policies for homes with active Knob & Tube wiring. The lack of a ground wire and the breakdown of 100-year-old insulation makes it a significant fire and shock hazard.
The Retrofit Process
Rewiring an old house is an art form. We fish wires through attics, crawlspaces, and wall cavities to minimize damage to your original molding and plaster.
Insulation Ready
Stop freezing. You cannot put insulation over active Knob & Tube wiring (it traps heat and starts fires). Removing it allows you to finally blow-in insulation and seal your attic.
Grounded Outlets
Protect your electronics. We install modern 3-prong grounded outlets. No more "cheater plugs" that bypass safety features and put your computer or TV at risk of surge damage.
Minimal Damage
We treat your home like a museum. We use surgical cutting tools and flexible drill bits to route new wire behind walls, often leaving zero patches for you to paint.
History vs. Modern Safety
Knob & Tube (1900s)
- Ungrounded: No path for stray current. Shock hazard.
- Overheating: Cloth insulation crumbles. Cannot be insulated.
- Insurance: Policy cancellation or high premiums.
BHE Rewire (2025)
- Grounded: 3-wire copper system with equipment ground.
- Protected: AFCI/GFCI breakers prevent electrical fires.
- Future Proof: Ready for resale, insulation, and modern tech.
Restore Your Peace of Mind
Love your historic home without fearing what's in the walls. Schedule a rewiring consultation today.
Get a Rewire QuoteServing Morris, Hancock, Starbuck & Alexandria
Historic Home Resources
Read case studies from our recent rewiring projects below.
Knob & Tube Wiring in MN: Insurance, Code & Safety Guide | Bright Haven Electric
Searching for knob and tube replacement Minnesota experts? We fix insurance/insulation issues with a minimally invasive process for West Central MN.