Knob and Tube Wiring Removal in Central & Southern NH
Safe, Code-Compliant Electrical Upgrades for Older Homes
If your home was built before the 1950s and still has its original electrical system, there’s a good chance it uses knob and tube wiring. While this early wiring method was standard in its time, it is now outdated, unsafe, and often not up to modern electrical code. At [Your Company Name], we specialize in professional knob and tube wiring removal and replacement services throughout Southern New Hampshire, bringing your home's electrical system into the 21st century—safely and efficiently.
Why Knob and Tube Wiring Is a Risk
Knob and tube wiring lacks the insulation, grounding, and capacity needed for today’s appliances and devices. Over time, the system can degrade and become a fire hazard. In fact, many insurance companies will not cover homes with active knob and tube wiring.
Common dangers include:
Overheating and fire risks
No grounding, making electrical shocks more likely
Incompatibility with modern appliances
Worn-out insulation that crumbles or becomes brittle
Difficulties with home insurance and resale
If you’re unsure whether your home has knob and tube wiring, our licensed electricians can inspect your system and provide a clear action plan for safe removal and code-compliant rewiring.
Our Knob and Tube Wiring Removal Services
We offer a start-to-finish solution for upgrading your home’s electrical system:
✅ Inspection and Assessment
Our team begins with a thorough evaluation to identify any existing knob and tube wiring, assess current code compliance, and determine the scope of the project.
✅ Safe Wiring Removal
We carefully remove old wiring while minimizing damage to your walls and ceilings. Our team follows all NEC code standards and local building requirements.
✅ Complete Rewiring
We replace knob and tube wiring with modern, grounded electrical systems that are safe, energy-efficient, and capable of supporting today’s electrical loads.
✅ Code Compliance & Permits
We handle all required permits and inspections, ensuring the work is fully compliant with local and state building codes.
✅ Clean Workmanship
We respect your home, taking measures to protect surfaces and clean up after every step of the project.
Who Needs Knob and Tube Wiring Replacement?
You should strongly consider replacing knob and tube wiring if:
Your home was built before 1950 and hasn’t been rewired
You’ve experienced frequent circuit overloads or flickering lights
You’re planning a home renovation or adding new appliances
An inspector or insurance company has flagged your wiring as a risk
Why Choose Us?
✅ Licensed & insured electricians
✅ Deep experience with older home wiring
✅ Detailed estimates and upfront pricing
✅ Clean, respectful workmanship
✅ Compliance with NEC code and local regulations
✅ Serving all of Southern NH
Schedule Your Knob and Tube Wiring Replacement Today
Protect your home, your loved ones, and your investment. Call [Your Company Name] today to schedule your knob and tube wiring removal consultation in Southern NH. Let us bring your home’s electrical system up to modern safety standards—without stress or surprises.
Licensed & Insured Electricians
Every project is handled by experienced professionals who meet local and national safety standards.
Upfront Pricing
No surprises — just honest, competitive pricing for top-quality work.
Prompt & Courteous Service
We respect your time, your home, and your schedule.
Commitment to Safety
Our work is always done to code, with your family’s safety as our top priority.
Serving Homeowners Across Central & Southern New Hampshire
We proudly provide residential electrical services across many towns and communities throughout Central NH. Whether you’re renovating a home, building new, or just need a quick repair — Lenn Johnson Electric is ready to help.
Need fast service? Contact us today to schedule a free estimate or speak with a licensed residential electrician.
Get a Free Residential Electrical Quote
Have an electrical project in mind? Reach out to Lenn Johnson Electric today. We’ll walk you through your options and provide a clear, no-obligation quote.
👉 Call (603)-496-3990
👉 Or Request a Quote Online
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Knob and tube (K&T) wiring is an outdated method of electrical wiring used in homes built between 1880 and the 1940s. It uses ceramic knobs and tubes to insulate wires and lacks grounding, which is essential for modern electrical safety.
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Yes. While not inherently unsafe when originally installed, K&T wiring poses serious fire and shock risks today due to insulation deterioration, lack of grounding, and the electrical demands of modern households.
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Signs include ceramic knobs and tubes in the basement or attic, two-prong outlets (instead of grounded three-prong ones), and fabric-covered wires. The best way to confirm is through a professional inspection.
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It’s not recommended. Even if it appears to be functioning, it poses risks and may prevent you from getting home insurance or selling your property. Most local codes encourage or require upgrading.
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Costs vary based on the size of the home, accessibility of the wiring, and scope of the project. Contact us for a free, detailed estimate based on your specific situation.
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Not necessarily. We use techniques that allow us to rewire your home with minimal disruption, especially when access is available via basements or attics. We’ll walk you through what to expect during the estimate process.
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Possibly. Many homes with K&T wiring also have outdated panels with limited amperage. We’ll assess your panel and recommend an upgrade if it’s required for safety or modern usage.
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We provide pool or hot tub electrical services across Central New Hampshire, including towns like Andover, Boscawen, Franklin, Henniker, Hopkinton, Concord, Manchester, Pembroke, and more. If you're unsure whether we serve your area, feel free to contact us — we're happy to help!
Why Choose Us?
High Quality Work
Quick Response
Locally Owned & Operated
Flexible 24/7 Hours
Excellent At Troubleshooting Electrical Problems
Specializing In Modern Kitchen Electrical Wiring & Wiring Of Historic Buildings
Wiring For New Home Additions
Commercial Electrical New Construction & Repairs
Over 16 Years In Business
Over 28 Years Of Experience
Electrician Since 1985
Master Electrician Since 1989