Repairing a strand of Christmas lights will save you a few dollars and the hassle of going to the store to purchase new ones. That may or may not be enough to make fixing them worth it to you. However, if the lights are already hanging or around the tree, removing and replacing them is far more time-consuming than performing a quick repair job. 

If you need to visually inspect your Christmas lights to determine which are good and which need replacement, there are a few things to look for. First, look for discoloration, such as a dark spot or two on the inside of the glass. The spot is an indication of a burnt filament. Also, look for missing filaments, cracked bulb glass, and broken sockets.

Yes, a holiday lighting installation can be a DIY project. While it is possible for homeowners to do it themselves, it's crucial to ensure all safety precautions are taken. This includes using the proper tools, following electrical safety guidelines, and carefully planning the layout. For large or high displays, professional installation is often recommended to ensure safety and a more polished appearance.

Heavy amounts of snow could be a problem. In many climates, lots of snow on your rooftop can lead to freeze-thaw cycle that create ice dams, which can damage rooftops. But if you’re using shingle clips, this snow poses an additional problem: As it melts and freezes, it can easily dislodge clips you’ve placed on your roof.

You can clean snow off your roof after a fresh snowfall while it’s still lightweight, but brushing off snow can also dislodge your clips. If you get a lot of snow, then roof clips become less viable.