About PureStream

A young, ambitious Christian pressure washing company dedicated to enhancing your outdoor spaces with quality service.

Our Services

Professional pressure washing for driveways, patios, decks, and parking garages with a commitment to excellence.

Concrete Cleaning

Give your concrete driveways, walkways, and patios a fresh, clean look with our expert pressure washing services.

Commercial

We focus on commercial properties, providing a range of services from soft washing building exteriors to cleaning sidewalks, entryways, and other flat surfaces.

Why Is Pressure Washing Important?

1. Colonization

1–3 months
Due to Washington's wet climate, algae and moss appear almost immediately—especially on shaded, north-facing, or tree-covered concrete. Lichens can start forming in under a year.

2. Moisture Retention & Surface Stress

6–12 months
Prolonged dampness creates extended wet-dry cycles. These begin causing microcracks even without freezing. Surfaces rarely fully dry out during the wet season.

3. Chemical Attack (Organic Acid Production)

1–3 years
Fungi, lichens, and algae release organic acids that slowly dissolve cement paste, increasing surface porosity and weakening the structure beneath the surface.

4. Physical Penetration (Roots, Moss Mats)

3–6 years
Moss mats thicken significantly, and roots or lichens exploit expanding pores and cracks—physically widening them and embedding deeper with every rainfall.

5. Accelerated Deterioration (Scaling, Spalling, Cracking)

6–10 years
Surface damage becomes visible: scaling, flaking, and pitting. In coastal or forested zones, spalling and cracking can occur even sooner, and moisture may begin corroding reinforcement layers underneath.