The 7 Best Metal Weatherproof Electrical Box Covers (2023 reviews)

We consider a metal weatherproof electrical box cover to be a worthy investment in the long run. We are here to help you choose the right one for your purposes from all the best available products in market today.

Our review process: Show/Hide

Our Top Picks:

Best Overall: Buy: Bell Great Cover READ REVIEW

Best For outside plug: Buy: Greenfield Metal Weatherproof Electrical Box Cover READ REVIEW

Best For pre fab Outlet pockets: Buy: Greenfield outside Outlet READ REVIEW

Best With hole: Buy: Bell Metal Weatherproof Electrical Box Cover READ REVIEW

Best For covering An opening: Buy: Sigma electric Metal Weatherproof Electrical Box Cover READ REVIEW

Best For applications: Buy: Sealproof Metal Weatherproof Electrical Box Cover READ REVIEW

Best With Duplex: Buy: Taymac Metal Weatherproof Electrical Box Cover READ REVIEW

Best Overall: Bell Great Cover

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a cover. The bell great cover is exactly that - it's a simple cover that hits all the right notes. This enclosure is made to fit modern rocker style switches. It has all the parts and inserts for either rectangular (Decora) or traditional electrical plugs. It has technology with a patented universal fit adapter and a patented quick fit key hole mount installation that enables you to fit different size screws. The material looks resistant, the lid has a spring to ensure the pressure over the grommet and protect from water ingress.

The cover has a little locking tab so a lock can be used. It opens up 90 degrees or more. The cover can not be closed when anything is plugged into the outlet, it would not be waterproof. It includes attached gasket and mounting hardware for either rectangular (Decora) or traditional electrical plugs.

• Fits both standard and decora outlets and comes with gaskets
• Excellent product, precise and well designed
• Works great to replace a worn out outdoor outlet cover

Best For outside plug: Greenfield Metal Weatherproof Electrical Box Cover

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If you are currently in the market looking for a reliable cover for your daily usage, you cannot go wrong with the greenfield metal weatherproof electrical box cover. It is a great way to spruce up old outdoor outlets. If you need a cover for an older style two plug outlet, this works really well. It feels sturdy and good in high quality. It comes with weather insulation that sticks on the back of the entire item. It is a little tricky to install (the socket covers have industrial strength springs) but the quality and finish are outstanding. It has rubber insulation on the back of the entire item. It feels sturdy and is water tight. It is a perfect fit, to replace a broken old red dot outside outlet cover.

• All metal construction, and very sturdily made
• Good investment for long term

Best For pre fab Outlet pockets: Greenfield outside Outlet

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We would, of course, be remiss if we didn't mention greenfield outside outlet for daily purpose. This exterior outlet cover plate is Made in the USA (how refreshing), looks good, functions well, and is fairly priced. It is good for pre fab outlet pockets in vinyl siding. It closes tight and weather resistant. It is a trap door seal that clamps tight when closed to create an effective seal. It comes with a cheesy thin foam seal. It works wonders for protecting the button.

This cover is quality made but requires a box with four mounting holes two for your device and two for the cover all on centerline. It is easy to open when mounted in this vinyl siding box.

• More worries water would enter an outside receptacle
• Takes two hands and the spring is strong
• Delivers what they promise

Best With hole: Bell Metal Weatherproof Electrical Box Cover

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The bell metal weatherproof electrical box cover is suitable and reliable and fits well with your daily usage. It fits a standard switch and single gang "bell" box. It allows you to operate the switch without opening the cover. It comes with galvanized screws which would rust in no time if mounted outside. It will block the switch from changing position. The switch is pushed over to the right so the switch cover will stay on.

It has four 6-32 x 1" filister head screws, which you can buy at any hardware store. The cover is made of plastic. It allows for custom fitting and can be used by electricians nationally.

• Great water tight cover for an outside switch
• Non-conductive weatherproof cover, fits standard switch and single gang "bell" box
• Easy to install, fits standard single-gang "bell" box
• Takes less than five minutes to install

Best For covering An opening: Sigma electric Metal Weatherproof Electrical Box Cover

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Sigma Electric offers a variety of cover for personal choice and yet maintaining quality in all the variants. It’s a cover for a round 4” box. It has a thick foam ring for waterproofing and it's made by a company called Sigma. Stamped steel blank covers are powder coated for maximum corrosion resistance and compliment 4-in round weatherproof boxes installed in wet, damp or dry locations. It comes with the screws to secure it.

This cover fits over the round receptacle fine, and the screw holes match up perfectly, but the included screws are too large. It is the perfect size to fit the camera base in between the screws. It is very thick, very heavy for a four in stamped piece of metal and the white paint is very white and powder-coated.

• Stamped steel construction and powder coated for corrosion resistance
• Good cover to protect the wires
• Well made, screws fit, gasket fits

Best For applications: Sealproof Metal Weatherproof Electrical Box Cover

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If you are searching for a satisfactory cover for your daily usage, you cannot go wrong with the sealproof metal weatherproof electrical box cover. The Screws that comes with your GFCI Outlet are the same screws that you would use to secure the box and the GFCI to the wall. It is easy to install even on concrete. It is easy to open (use thump to push up) with a reinforced hinge that withstands a 40 lb stress test. It is also great for applications in multiple configurations.

The Unique Industrial design allows for snap-in of 7 configurations whether round, switch, duplex or GFCI. It is easy to install. The screws that come with your GFCI Outlet are the same screws that you would use to secure the box and the GFCI to the wall.

• Very easy to install and great for applications in multiple configurations
• Extra large cord opening for heavy gauge cords
• Extends from a low of 2-3/4" height to a high of 3-1/2" height

Best With Duplex: Taymac Metal Weatherproof Electrical Box Cover

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Next on the list, we've got yet another cover that manages to win our hearts. It's the taymac metal weatherproof electrical box cover and it's widely considered as cover that has the most suitable features. These are very strong boxes. It has the design is deep, but that makes it harder to line up and plug in your cord hard enough to fully seat. It includes optional siding flange, 21.0 cubic inch wiring capacity, (2) 0.5 in./0.75 in. This box has a 2 3/4" inward depth for large plugs/cords. It has 2 knockouts for wire retainers or wire glands, plus multiple inserts to support various types of outlet or switch configurations. It is compatible with duplex, gfci (ground fault circuit interrupter), or round receptacle. The ability to have weatherproof "in-use" receptacles without having some enormous wart jutting out from the wall is awesome.

• You have more room for electrical cords, gasket, and mounting hardware
• High quality and easy to install
• Weatherproof, mounts horizontally or vertically, and mounts on stud or in the wall