Rewiring your home can seem like a daunting task, but with the right knowledge and preparation, it can be done safely and efficiently. Here are some brilliant yet little-known tricks to help you rewire your home yourself.
Know When It's Time to Rewire
Knowing when it's time to rewire can save you time, money, and headaches down the road. Here are some signs it may be time to rewire your home:
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Frequent tripped circuit breakers or blown fuses: This often indicates outdated wiring that can't handle modern electrical loads.
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Not enough outlets in each room: Outdated wiring often has fewer outlets than needed today. Rewiring allows you to add more.
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Light fixtures dimming: This can indicate unsafe wiring unable to deliver proper voltage.
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Discolored outlets/switch plates: Heat discoloration points to poor connections needing repair.
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Code upgrades: Local electrical codes change over time. Rewiring brings things up to current safety standards.
If you notice any of these issues, it's a good idea to consult an electrician about rewiring.
Choose the Right Wire Gauge
Choosing the proper wire gauge for each circuit is key to performance and safety. Here are some tips:
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Follow code requirements: Your local electrical code will specify the right gauge for each circuit type. This is the minimum that should be used.
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Use thicker wire for high-load circuits: For circuits like kitchens or laundry with major appliances, use a heavier gauge than code minimums for better voltage delivery.
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Use thick wire for long runs: The longer the wire run, the thicker the gauge should be to avoid voltage drop.
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Consult an electrician: They can assess your electrical needs and recommend the ideal wire gauge for each circuit. Investing in the right gauge makes a big difference.
Use the Right Wiring Methods
Today there are several wiring methods to choose from, each with their own pros and cons. Here's an overview:
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NM Cable: This flexible cable is easy to install but limited to certain applications. It can't be run exposed.
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Conduit: Rigid or flexible conduit protects wires from damage. It's versatile but requires more labor to install.
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Armored Cable: The flexible metal covering adds protection while still being easy to install. It is more expensive than NM cable.
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Flat Cable: Easy to hide under flooring but not as durable. Limited to smaller branch circuit wiring.
Consider the pros and cons of each method for your needs. Many electricians use a combination of methods depending on the location.
Add Planning Circuits for Future Expansion
One smart trick is to plan ahead and install wiring for additional circuits you may want later. This avoids costly rewiring.
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Run conduit to central locations where you may add circuits later, like an attic or basement subpanel.
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Consider wiring for a higher amperage service panel than you currently need. This prepares for future upgrades.
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Install boxes and conduit for additional 240V circuits in the kitchen or laundry room for future electric appliances.
Planning ahead in this way eliminates the need for rewiring down the road as your needs change over time.
Use Safe Electrical Boxes
Choosing the right electrical boxes keeps connections secure and helps prevent fires. Follow these tips:
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Use fire-rated boxes anywhere wiring penetrates walls, ceilings, or floors. This contains any sparks within the box.
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Ensure box size matches wires and devices. An overfilled box is a fire hazard.
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Use clamps to secure armored cable. This prevents strain on connections.
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Install exterior-rated boxes outside. They are weatherproof to protect from moisture.
Take time to research box types to use the right one for each location. Don't forget fire-stop spacers when penetrating firewalls.
Add Whole House Surge Protection
Protecting your new wiring from power surges helps prevent damage and fires. Here are some options:
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Whole house surge protector at the main panel. This is the best option as it protects all wiring.
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Point-of-use surge protectors for expensive electronics. This adds extra protection.
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Surge protecting receptacles where needed. Choose models with indicators when protection wears out.
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Surge protecting switch plates for quick upgrades in older wiring. Just swap out standard plates.
Integrating proper surge protection is simple during rewiring and provides great insurance against surges harming your home's electrical system.
Rewiring your home is a major project but immensely rewarding. Following these tips will help you do it right the first time. For large whole home rewiring jobs, hiring a professional electrician is highly recommended unless you have electrical training. With the right knowledge and preparation, you can upgrade your home's wiring to be safer, more efficient, and ready for future expansion.