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*The Angi rating for Holiday Decorating companies in Mount Vernon, SD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Holiday Decorating needs.

*The HomeAdvisor rating for Holiday Decorating companies in Mount Vernon, SD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Holiday Decorating needs.

Last update on April 14, 2026

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Holiday Decorating questions, answered by experts

The most likely cause of accidentally flashing lights is that a regular bulb has been replaced with a flash bulb by accident. If that’s not the case, you should look for a bulb on the strand that is not quite seated properly and will lose its connection when it’s touched or moved.

Yes, you must use an extension cord specifically rated for outdoor use to power outdoor lights, such as Christmas lights. Extension cords intended for indoor use lack the protective properties to withstand exposure to outdoor elements. To safely hang and power lights outside your house or in your yard, always connect them to an outdoor power source using an outdoor-rated extension cord.

Permanent lights can save you big in labor costs down the line, as you’ll only need to invest in installing them once. As with regular lights, costs vary based on the display and the size of your home. Costs are similar to hanging regular lights, typically falling between $220 and $650. 

No one has figured out a perfect solution to this problem. Tying icicle lights down or adding weights to them can help, but it’s a very time-consuming process and far from foolproof. If your winters are too windy, we suggest simply switching away from icicle lights to straight runs of non-dangling lights along the edge of your roof.

Professionals use the same methods found in this guide unless they’re decorating a particularly large Christmas tree. In that case, they may also make use of tools like extension poles to get the job done. 

The Mount Vernon, SD homeowners’ guide to holiday decorating services

From average costs to expert advice, get all the answers you need to get your job done.

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