Get matched with top holiday decorators in Spearfish, SD

Blinker lights come with a standard box of Christmas lights, so you don’t need to pay extra for them unless you’ve misplaced the ones from the original box. You can buy replacement Christmas blinker lights for about $8 per box. If you want to plan for future holidays, you can buy a value box of 24 replacement blinker bulbs for about $12. Also called flasher lights, the replacement bulbs often come in packages of six bulbs.

The average cost to have a professional install Christmas lights on a roof is about $420, with most homeowners spending between $220 and $650. Some companies may charge between $1.25 and $3 per square foot, excluding the cost of the lights. For extensive or complex jobs, the cost can exceed $1,000. While doing it yourself can save money, it is only recommended if you are comfortable working at heights.

Yes, you can try removing and replacing each individual light bulb one at a time until you find the problem bulb—just be prepared for it to take a while. The bulb tester is worth the investment if you don’t have a lot of extra time to spare or need to test several strands of lights.

Christmas lights typically do not need to be grounded like electrical circuits in your home do. However, it's crucial to use outdoor outlets equipped with ground fault circuit interrupters (GFCIs) for added safety. GFCIs can help protect against electrical shocks and are recommended for outdoor electrical connections when using Christmas lights.