If your gutters are perfectly level, water will just sit there and throw a pool party for mosquitoes. You want a gentle slope—about ¼ inch for every 10 feet of gutter. This is the magic number that sends rainwater dancing toward the downspout.
Snap a chalk line along the fascia board (that trim under your roof) to guide your hangers. It’s like drawing a road map for water. Trust the chalk line—it never lies.
Step 2: Place the Hangers (Think Of Them As Little Hugs)
Every 24 to 36 inches, you’ll screw a hanger into the fascia. Imagine you’re giving each section of gutter a firm, loving embrace. Not too tight—don’t warp the metal—but snug enough that it won’t sag under a downpour.
For gutters with hidden hangers, you’ll slide them inside the gutter channel. This is the satisfying part: you’ll hear a crisp click as they lock in place. Pure DIY bliss.
House Gutters And Downspouts