Safe Knob and Tube Rewire
We replace outdated wiring to improve safety, support modern power needs, and help protect your home.
Why Rewiring Knob and Tube Matters
Old knob-and-tube wiring can create real safety and reliability problems in an older home. If your house still has this early wiring system, a full or partial rewire is often the best long-term fix. At Drummond Electric, we help homeowners replace outdated wiring with modern, code-compliant electrical wiring that supports today’s appliances, lighting, and power needs.
Knob-and-tube wiring was common in homes built before the 1950s. While it was standard for its time, it was not designed for modern electrical loads like HVAC equipment, kitchen appliances, EV chargers, home offices, and electronics. Over time, insulation can become brittle, circuits may be altered incorrectly, and the system often lacks grounding. That can raise the risk of shock, overheating, nuisance tripping, or hidden fire hazards inside walls and ceilings.
Our knob-and-tube rewire service starts with a careful inspection of the home’s existing electrical system. We identify where the old wiring is located, check the condition of panels, outlets, switches, fixtures, and junctions, and look for related issues such as overloaded circuits, improper splices, ungrounded receptacles, or outdated breakers. Then we create a clear plan to replace unsafe wiring with new branch circuits, grounded outlets, modern switches, and properly protected circuits where needed.
Depending on the home, we may rewire specific problem areas or complete a whole-home rewiring project. We work on lighting circuits, outlet wiring, dedicated circuits, panel connections, AFCI and GFCI protection, and code upgrades that improve both safety and performance. Our goal is to make the new system practical for how you live today while minimizing disruption as much as possible.
A knob-and-tube rewire can improve safety, help with insurance concerns, reduce electrical problems, and add value to an older property. It can also make future remodeling much easier. We are licensed, bonded, and insured, and we take a safety-first approach on every residential electrical upgrade. If you are concerned about old wiring in your home, contact Drummond Electric to schedule an evaluation and get a clear plan for a safer, more dependable electrical system.
Our Knob and Tube Rewire Process
We make old wiring upgrades clear, safe, and well planned. Our process is built to protect your home, reduce disruption, and leave you with a modern electrical system you can trust.
In-Home Assessment and Safety Plan
We start with a detailed onsite inspection to map existing knob and tube wiring, check the panel, locate overloaded circuits, and identify fire and insurance risks. Then we explain our findings in plain language and give you a clear scope, timeline, and estimate for the rewire.
Careful Rewire and System Upgrade
Once approved, we schedule the work and create a room-by-room plan to replace outdated wiring with modern, code-compliant circuits, grounding, outlets, and switches. We work neatly, protect finished areas, and coordinate each phase to keep downtime and surprises to a minimum.
Testing, Cleanup, and Final Walkthrough
After the rewire, we test every circuit, device, and connection for safety, proper load, and reliable performance before closing walls or wrapping up the job. We finish with a thorough cleanup and a walkthrough so you know exactly what was upgraded and what to expect going forward.
Knob and Tube Rewire FAQs
Common questions homeowners ask us about replacing old knob and tube wiring, what to expect, and how we make the job safe, clear, and manageable.
- What is knob and tube wiring, and why should it be replaced?
Knob and tube wiring is an older system often found in historic homes. It was not designed for today’s electrical demands and usually has no equipment grounding. Over time, the insulation can become brittle or damaged, which raises the risk of shorts, shocks, and fire hazards.
- Is knob and tube wiring dangerous?
It can be. Not every older system is failing, but many have unsafe splices, worn insulation, overloaded circuits, or past handyman changes that were not done properly. We inspect the wiring carefully and explain what we find, so you can make a smart, informed decision.
- How do I know if my home still has knob and tube wiring?
Common signs include older wiring in the attic or crawl space, two-prong outlets, limited grounded circuits, or a home built many decades ago. The best way to know for sure is with a professional electrical inspection. We can confirm what is active and what has been abandoned.
- Will a knob and tube rewire require opening walls?
In many cases, yes, but we work carefully to limit damage as much as possible. Our goal is to rewire your home efficiently while keeping disruption under control. We plan routes thoughtfully, protect the work area, and communicate clearly so there are no surprises.
- How long does a knob and tube rewire take?
The timeline depends on the size of the home, how accessible the wiring is, and whether service panel or outlet upgrades are needed. Some projects move quickly, while others take longer. After we evaluate your home, we give you a clear scope and realistic schedule.
- Why should I hire Drummond Electric for knob and tube rewiring?
We bring years of hands-on experience with old-house wiring, troubleshooting, panel work, outlet rewiring, and safety inspections. We are known for finding problems others miss and explaining the work in plain language. If you want the job done safely and professionally, we are ready to help.
Why Homeowners Trust Drummond Electric
See what matters most to local customers—clear answers, safe work, and repairs done right.
We just bought our first home, and we were desperate for a lighting upgrade. Our house still had the original lighting configuration as each room had a switch controlling a single wall outlet for a lamp. We got multiple quotes from electricians and ultimately went with Drummond Electric. Trent came out for the initial quote, provided his professional recommendations and feedback, was extremely personable and fair. We ended up having over 40 recessed lights installed, outdoor lights replaced, security cameras installed, and wired smoke detectors installed. We also included additional items after the initial quote, which Trent and his team took in stride and was able to accommodate all the additions. Trent’s entire team was extremely professional, worked quickly, and they were able to give us exactly what we wanted while providing their professional recommendations. They all went the extra mile during the installation process and installed full electric outlets alongside our outdoor security cameras which will allow us to easily power christmas lights, something we didn’t know we wanted or needed but are extremely grateful that they did! We highly recommend Trent and the Drummond Electric team, we are planning future electrical upgrades and Drummond Electric will be our first call.
Got the job done well. Timely. Easy to work with Reasonable price. Had upgraded service put in. Installed car charger. Ran 3 new 220 lines.
Have used Drummond several times for various issues. Always prompt. Always thorough. Always well diagnosed and all done at a fair and reasonable price. Highest stamp of approval I could possibly give.
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