Questions & Answer Categories
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Moss Removal pricing depends on several key variables:
- Roof condition (severe moss = more labor and chemical application)
- Treatment area (partial or full roof coverage)
- Type of roof (metal, composite, tile — all require different approaches)
- Height, pitch, and overall accessibility
Soft Washing pricing is based on the total surface area cleaned and whether you’re treating siding, driveways, patios, fences, or concrete surfaces. Our process includes a low-pressure application of eco-safe solution, rinse, and optional preventative Moss Control. We’ll inspect your property and help prioritize what services bring the best ROI.
Soft Washing is a low-pressure cleaning method that uses specialized cleaning agents to break down grime, algae, and moss. Pressure washing relies on high-pressure water to blast away dirt — ideal for concrete and hardscapes but not safe for roofs, windows, or siding.
Soft Washing:
- Safe for shingles, vinyl, stucco, and older surfaces
- Extends surface lifespan
- Kills mold, mildew, and algae at the root
Pressure Washing:
- Best for patios, driveways, brick, and walkways
- Can damage paint, shingles, and seals if used improperly
At Johnny Tsunami, we assess the material and use the correct technique — not a one-size-fits-all approach.
Absolutely — and in fact, it’s the preferred method. Our biodegradable cleaning solution is designed to kill and remove moss, mold, and mildew without causing harm to your roofing materials, paint, or landscaping. Unlike pressure washing, which can void warranties and strip surfaces, soft washing is gentle and thorough.
Our technicians follow industry best practices, stay OSHA-compliant, and perform a pre-clean walkthrough to ensure everything is protected and prepared.
Timing depends on the scope of work. Here’s a breakdown:
- Roof Cleaning: 2–3 hours
- Gutter Cleaning: 1.5–2 hours
- Full Exterior Cleaning Package: 4–6 hours
- Multi-building or commercial sites: Full day or scheduled over multiple days
We’ll always give you a rough time estimate before the job starts. Our exterior cleaning crew works efficiently and stays until the job is completed — no rushing, no cutting corners.
Eventually — yes. But our professional treatment significantly delays regrowth. Most roofs stay clean for 12–18 months.
We recommend an annual maintenance plan for moss prevention, gutter flow control, and touch-up treatments. We also provide guidance on trimming overhanging trees, clearing roof valleys, and keeping surfaces dry to slow moss growth.
To help our crew deliver the best experience:
- Move vehicles out of the driveway or garage
- Secure pets indoors during service
- Remove outdoor items like potted plants, cushions, or decorations
- Close all windows and doors
- Let us know about any fragile landscaping or recent repairs
We handle setup, protection, and cleanup — you just sit back and enjoy the results.
Unless your roof has structural issues or widespread shingle failure, cleaning is almost always the better first step. Soft washing removes years of buildup, reveals the actual condition underneath, and helps you avoid premature replacement costs.
We’ll inspect and advise you honestly — if it just needs cleaning, we’ll say so. If you need a roofer, we’ll point you to trusted roofing partners.
DIY is possible — but not recommended unless you have the tools, safety training, and time. Risks include:
- Ladder falls
- Damaged gutters
- Incomplete flushing that leaves hidden clogs
Hiring Johnny Tsunami means fast, safe, and thorough gutter service. Plus, we spot small gutter issues before they turn into leaks, rot, or foundation damage
Spring and fall are ideal to clean your roof in the PNW:
- Spring = remove winter debris, prep for pollen and growth
- Fall = remove leaves, prep for rain and freezing conditions
We clean year-round, weather permitting. Our team knows how to work safely in wet conditions and can flex around your schedule.
The PNW is a moss paradise:
- Constant rain and cool temps
- Tree shade and minimal sun exposure
- Leaves and needles collecting moisture
Unchecked moss can damage shingles, trap moisture, and lead to leaks. Cleaning it off and applying preventative treatment is the smartest way to protect your roof and gutters from long-term damage.
Here’s what we recommend:
- Gutters: Twice yearly (Spring and Fall)
- Siding: Once a year minimum — more if you have trees or algae
- Solar panels: Every 6–12 months for optimal efficiency
Regular cleaning keeps your home healthy, your curb appeal sharp, and your energy savings intact. We’ll help you build a cleaning schedule that fits your home and goals.
