If you own an older home in Portland—especially in one of the city’s beautiful historic districts—you likely appreciate its timeless charm, unique architecture, and character. But what many homeowners don’t realize is that behind the walls, older homes often come with outdated electrical systems, like knob and tube wiring.
At Smiley Electric, we frequently help homeowners modernize their electrical systems, and knob and tube wiring upgrades are one of the most important services we offer.
What Is Knob and Tube Wiring?
Knob and tube wiring was commonly used from the 1880s to the 1930s in homes throughout Portland, Oregon. It uses single-insulated copper wires running through ceramic knobs and tubes. While this was state-of-the-art over a century ago, it simply can’t handle the demands of modern living.
This system lacks a ground wire, which means outlets are ungrounded (usually just two prongs), posing serious electrical safety hazards. Many connections were soldered or taped together—methods that degrade over time. If your home still relies on knob and tube, it’s not only inefficient—it could be dangerous.
Why Upgrade?
Modern homes need to support high-demand appliances: microwaves, dishwashers, refrigerators, vacuums, and more. Knob and tube wiring was never designed for this kind of load. Overheating, wire breakage, and even electrical fires are risks homeowners face when outdated wiring remains in use.
Even more concerning, many insurance companies will not insure homes with active knob and tube wiring. If you’ve had a recent home inspection, chances are the inspector flagged this system and recommended an upgrade.
At Smiley Electric, we specialize in knob and tube replacement in Portland-area homes. We bring your home up to code, split overloaded circuits for improved performance, and install grounded outlets throughout your home. You’ll also benefit from added safety features like interconnected smoke detectors—often required by current code.
What’s the Cost?
Rewiring a home with knob and tube wiring isn’t a surface-level job. It involves running new wires through walls, ceilings, and attics—all the way back to your panel. The cost can vary depending on the size and layout of your home, but we provide transparent estimates and honest advice. It’s not just an upgrade—it’s peace of mind for you and your family
Preserve the Past, Protect the Present
You don’t have to sacrifice your home’s charm to gain safety and functionality. At Smiley Electric, we make sure everything behind the walls is up-to-date while preserving your home’s classic appearance. With our licensed electricians in Portland, you’ll enjoy a beautifully retrofitted home that meets modern standards without compromising its historical integrity.
If your home still has knob and tube wiring, don’t wait until it becomes a hazard. Reach out to Smiley Electric for a free consultation. Let us help you modernize your home—safely and efficiently.
📞 Call us at 503-484-7556
✉️ Email us at help@smileyelectric.net
Smiley Electric – Your Trusted Electrician in Portland for Knob and Tube Wiring Upgrades.