Choose cleaning when loose debris blocks an otherwise intact gutter or visible downspout path. Choose repair when gutters sag, separate, leak at joints, have loose fasteners, or drain poorly because of pitch or damaged parts. Choose a roofer for roof or flashing defects. Choose a drain specialist when water backs up in buried piping.
Service decision matrix
| Symptom | Start with | Cleaning can do | Cleaning cannot do |
|---|---|---|---|
| Leaves, plants, or loose debris | Gutter cleaning | Remove agreed reachable debris | Repair damage hidden below it |
| Local overflow near a visible downspout | Cleaning and visible-path check | Remove a reachable clog | Prove a buried line is open |
| Sagging or gutter pulling from fascia | Gutter repair | Remove extra debris weight | Reattach or replace parts |
| Leak at seam or end cap | Gutter repair | Expose the area for review | Seal or rebuild the joint |
| Water runs behind gutter at roof edge | Roofer or gutter-repair provider | Clear debris if also present | Diagnose flashing or roof defects |
| Buried connection backs up | Drain specialist | Clear the above-ground gutter path | Clear underground piping |
| Overflow across a clear run in heavy rain | Capacity and pitch review | Remove debris if present | Resize gutters or correct pitch |
Use signs your gutters need cleaning for a ground-level check. Use the scope worksheet to record symptoms and structures.
Limits
This matrix is a routing tool, not a building inspection. Water can have more than one cause. Standard cleaning does not include gutter repair, roofing, foundation diagnosis, or buried-drain clearing.
Sources
- City of Portland, stormwater maintenance guidance, https://www.portland.gov/bes/stormwater/maintenance, accessed 2026-09-19.
- Oklahoma State University Extension, residential downspout guidance, https://extension.okstate.edu/fact-sheets/minimizing-stormwater-runoff-by-disconnecting-residential-downspouts, accessed 2026-09-19.