Also, the leaves slide down the roof unto the guards and some will get stuck in the openings, then if they get wet before they blow or slide off, they will not move off the guards. I would have to get up on a ladder anyway to clear them off. I had these up North, not same company, bought mine at Lowe's and installed them DIY. Also as time went along, the granules from the shingles would wear off and go into the gutters so I had to pull them and clean them out. I would ask for a reference before having the work done.
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