Knob & Tube Wiring Replacement in Boston, MA
Safe, Code-Compliant Electrical Upgrades by Licensed Massachusetts Electricians
✓ Licensed & Insured
✓ Clean, Low-Disruption Work
✓ Quick Scheduling
Did a home inspection uncover knob and tube wiring? AmpSmart Power & Electric helps homeowners in Revere and Greater Boston find out which circuits are still active, understand their options, and replace outdated wiring with modern grounded circuits.
Found old wiring? Here’s where to start.
Maybe it came up in a home inspection, your insurer asked about it, or you’re planning a renovation and want to know what’s behind the walls. We’ll assess the wiring we can access, explain what we find, and walk you through what replacement would involve in your home.
What is knob and tube wiring?
Knob and tube is an older wiring method that uses ceramic knobs and tubes to support and protect individual wires. It was originally installed without an equipment grounding wire. If you’re planning to add attic or wall insulation, have an electrician check for active knob and tube wiring before work begins.
How replacement works
Assess the existing wiring. We review any inspection notes you have and check accessible areas to help identify which circuits are still active.
Explain the scope and cost. We’ll discuss which circuits need replacement, where access openings may be needed, and what’s included in your estimate.
Install and test the new wiring. We replace the circuits included in your estimate with modern grounded wiring and test the completed work.
Common questions
Will I need to rewire my whole house?
Some homes have a mix of newer wiring and active knob and tube. The scope depends on how many older circuits are still in use and what they serve.
Will you need to open my walls?
Some projects require access openings. We’ll look for routes through accessible areas like the attic or basement and explain where openings may be needed before work begins.
How much does knob and tube replacement cost?
The price depends on how many circuits need replacing, how accessible they are, and what other electrical work is included. Request an estimate based on your home and the work it needs.
If your home still has outdated knob and tube wiring, now may be the perfect time to upgrade. AmpSmart Power & Electric is offering up to $2,000 cash back on qualifying knob and tube removal projects.
Get Up to $2,000 Cash Back on Knob & Tube Removal
Up to $2,000 cash back on qualifying knob & tube removal projects. Offer amount varies based on project scope and eligibility. Cannot be combined with other offers. Additional terms may apply
Is Knob & Tube Wiring Still in Your Home?
Many older Massachusetts homes were originally wired with knob and tube electrical systems. While some systems have been partially updated over the years, older wiring may still remain behind walls, in attics, or in basements.
Get an estimate for your home
Tell us where the property is and what prompted your call. If you have a home inspection report or a note from your insurer, let us know so we can address it when we discuss your project.
Why Replace Knob & Tube Wiring?
Modern Electrical Capacity
Update older wiring for the electrical demands of today's appliances, electronics, HVAC equipment, and other devices.
Grounded Wiring
Replace outdated wiring with a modern grounded electrical system where appropriate.
Home Sales & Inspections
Older electrical systems can become an issue during home inspections and real estate transactions.
Insurance Concerns
Some insurance companies may have requirements or restrictions involving older electrical systems.
Your Home May Have More Than One Type of Wiring
Older Massachusetts homes have often been renovated multiple times. That means a single property may contain a combination of knob & tube, BX, Romex, and newer electrical components.
Our electricians can evaluate the existing system, identify outdated wiring, and recommend the appropriate upgrades for your home.
Frequently Asked Questions
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No, but it is outdated and often flagged by home inspectors and insurance companies.
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Costs vary depending on home size and accessibility, but most projects range from $8,000–$25,000.
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Many insurers in Massachusetts will deny coverage or require replacement.
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Most projects are completed in 3–10 days with minimal disruption.
Worried About the Cost? We Can Help.
Flexible Financing Options Available
Explore financing options that can make a larger electrical upgrade easier to manage.
Trusted by Homeowners Across Massachusetts
5.0 Rating • Recent 5-Star Reviews
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“Professional, fast, and high-quality work.”
Finished recessed lighting in just 1.5 days. Super clean and efficient — highly recommend.
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“Great communication and excellent service.”
The team was on time, professional, and delivered exactly what we needed.
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“Reliable, honest, and safety-focused.”
Always does the job right and puts safety first.
— Michael D.
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“Responded quickly and fixed the issue right away.”
Anthony was professional, knowledgeable, and easy to work with.
— Mary G.
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“Expert electricians I trust on multiple properties.”
Consistent, high-quality work over the years.
— Alex R.
Knob & Tube Replacement Across Eastern Massachusetts
AmpSmart Power & Electric provides knob and tube wiring inspections and replacement services throughout Boston, Cambridge, Somerville, Newton, Quincy, Revere, and surrounding Eastern Massachusetts communities.
Ready to replace outdated wiring? Talk with AmpSmart Power & Electric about your home and get an estimate for your project.
Get Your Knob & Tube Inspection Today
Call 1-844-AMP-GOLD