Start with a ground-level map of every guttered structure, visible downspout, guard, outlet, and water symptom. Then observe the system during the first ordinary rain. You do not need to climb a ladder. The goal is to create a baseline that separates routine cleaning from repair, roof, and underground-drain questions.
Day-one property map
- List the house, garage, porch, addition, shed, and other guttered structures.
- Record the highest gutter level for each structure.
- Count visible downspouts and note where each discharges.
- Mark buried connections as unknown until separately assessed.
- Record guard or screen types, if visible from the ground.
- Photograph sagging, gaps, leaks, stains, and loose parts from the ground.
- Ask the seller or prior manager for the last cleaning and repair records.
- Note gates, pets, slopes, wires, narrow access, and soft ground.
First-rain observation log
| Observation | Result | Next step |
|---|---|---|
| Water reaches each visible outlet | Yes / no / unclear | Record any local blockage symptom |
| Overflow occurs | Location and rain intensity | Use the diagnostic guide |
| Water pools near the building | Location and duration | Review the outlet and drainage path |
| Buried connection backs up | Yes / no / unclear | Contact a drain specialist if confirmed |
| Water appears at roof edge or behind gutter | Location | Contact a roofer or repair provider |
Maintenance record
Store the date, written scope, provider, completion proof, inaccessible sections, observations, and next review date after every visit. Use the completion checklist and keep repair records separate from cleaning records.
Limits
This is not a home inspection. Do not climb a ladder or walk the roof. Ground-level observations cannot prove gutter pitch, roof condition, or the state of buried drainage. Cleaning does not repair gutters, roofing, foundation drainage, or underground piping.
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.
- CDC/NIOSH, ladder safety, https://www.cdc.gov/niosh/falls/ladder/index.html, accessed 2026-09-19.