Highest — most impactful cleaning window of the year
After the rainy season ends, homes reveal the full extent of winter's biological growth — mold, algae, moss, and pollen accumulation. Spring is ideal for house washing before the hot, dry summer.
Lower — primarily maintenance and stain/seal work
Bay Area summers are dry. Biological growth slows significantly. However, dust, pollen, and air pollution accumulate on surfaces. This is also the best window for deck and fence staining (dry, warm weather aids curing).
Medium-High — gutter cleaning is critical
Falling leaves deposit tannins on concrete, patios, and wood surfaces. As fog and moisture return, algae growth begins on north-facing walls. Fall cleaning prepares your home for the wet season.
Low for residential — high for active commercial properties
Bay Area winters are mild but rainy. While full exterior cleaning is generally deferred due to rain (surfaces re-contaminate quickly), there are specific situations where winter service is appropriate.
| Service | Spring | Summer | Fall | Winter |
|---|---|---|---|---|
| House Soft Wash | ✓ Primary | — | ✓ If needed | — |
| Roof Cleaning | ✓ If needed | — | ✓ Inspect | — |
| Gutter Cleaning | ✓ Primary | — | ✓ Critical | ✓ If blocked |
| Driveway / Concrete | ✓ Primary | ✓ If needed | ✓ Leaf staining | — |
| Deck Cleaning | ✓ Primary | ✓ Staining | — | — |
| Fence Washing | ✓ Primary | ✓ Sealing | — | — |
| Commercial Lots | ✓ | ✓ | ✓ | ✓ |
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