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Safe, Water‑Free Roof Cleaning with the Marshall Air System
For particularly delicate roofs, we use the Marshall Air System – a specialist air-only cleaning method that uses no water at all during the cleaning stage. This keeps your roof as safe as possible, avoiding the risks that come with pressure washing or even low‑pressure rinsing.
The Marshall Air System gently but effectively blows away loose moss, debris and organic growth from your tiles using controlled air flow. Because no water is used, there is no risk of forcing moisture under tiles, no saturation of the roof structure, and a significantly reduced chance of damage to older or fragile roofs.
AK Exterior Biocide DDAC 50% Treatment
Once the roof has been safely air cleaned, we apply AK Exterior Biocide DDAC 50% across the entire roof surface. This high-strength professional biocide is formulated specifically for exterior cleaning treatments. Designed for trade and professional operators, this solution delivers long-lasting cleanliness when applied as part of our professional exterior cleaning process. It:
- Kills remaining spores, algae, lichen and organic growth
- Helps prevent regrowth for an extended period
- Keeps the roof cleaner for longer and improves overall appearance
By combining the Marshall Air System with AK Exterior Biocide DDAC 50%, we provide a roof cleaning process that is gentle, safe and long‑lasting, ideal for properties where protecting the roof is just as important as making it look great.
Our Roof Cleaning Process
We've perfected our methodology to ensure the safest and most effective clean for homes.
Air or Manual Moss Removal
Using the Marshall Air System or custom-profiled scraping tools, we remove the bulk of the moss safely without high-pressure water jets, ensuring your tiles are never damaged.
Biocide Soft Wash Treatment
Once the heavy moss is removed, we apply AK Exterior Biocide DDAC 50%. This high-strength, targeted chemical solution penetrates deep into the porous surface of the tiles, neutralizing remaining algae, lichen, and moss spores for long-lasting cleanliness.
Self-Cleaning Action
Over the following weeks and months, the biocide continues to work alongside the natural weathering process to gently wash away the dead biological matter, keeping your roof clean for longer.
Roof Cleaning FAQs
Common questions from our customers.
Other Areas We Cover for Roof Cleaning
We provide professional roof cleaning across Northamptonshire and beyond. Explore our other local service areas.
Looking for more than just roof cleaning? We offer a comprehensive range of exterior cleaning solutions. Need a deep clean for your driveway or patio? See our Driveway Cleaning service.
The AK Exterior Cleaning Difference.
See how our professional approach and specialist equipment compare to traditional cleaning methods.
| Features | AK Exterior Cleaning | Typical Competitors |
|---|---|---|
| Fully Insured & Certified | ||
| Specialist Equipment (Marshall Air, Westermann) | ||
| Safe, Air System Roof Cleaning, No Water | ||
| Long-Lasting Biocide Treatments | Sometimes | |
| 5-Star Customer Reviews | Varies | |
| Free, No-Obligation Quotes |
Air Cleaning vs. Pressure Washing
Why our Marshall Air System is the safest and most effective choice for your roof compared to traditional pressure washing.
Marshall Air System
- Zero Water Damage RiskUses no water during cleaning, so moisture can't be forced under tiles into your loft.
- Gentle on TilesAir flow won't strip the protective coating or crack delicate roof tiles.
- Controlled MessDry moss and debris fall predictably, making cleanup easy and preventing wet sludge splatters.
- Perfect Biocide PrepLeaves the roof dry and ready to absorb our long-lasting biocide treatment immediately.
Traditional Pressure Washing
- High Risk of LeaksHigh-pressure water is easily blasted up and under tiles, causing internal damp and leaks.
- Damages Roof SurfaceAggressive washing strips the granular coating off tiles, shortening the lifespan of your roof.
- Messy ProcessCreates a wet, muddy sludge that splatters across windows, walls, and neighbouring properties.
- Ineffective Long-TermOften fails to kill the root spores, meaning moss and algae return much faster.