Icicles are often the result, or precursors, of ice dams on the eaves of roofs. Roofers have ways of dealing with them, one of which is to spray them slowly with hot water. The hot water softens the ice enough for careful ice-picking to finish the job. This method often works with other techniques, such as raking snow off the roof and using melt socks.
An outdoor hot water delivery system can conveniently provide the needed water hot water supply, using a garden hose. Outdoor hot water delivery systems, which can be installed by Saskatoon plumbing services like Perfection Plumbing & Drain Cleaning, also have other uses in warmer months, such as washing the car or the dog, among others.