Nottingham specialists
Roof Algae Removal Nottingham — Black Streak Treatment
Black streaks running down a roof are caused by gloeocapsa magma — a cyanobacteria that feeds on the limestone filler in concrete tiles. It's increasingly common across Nottingham as concrete-tile housing ages. Our targeted biocide treatment kills the algae and lifts the staining without high-pressure cleaning.
- Fully insured
- Local Nottingham experts
- Fixed-price quotes
- Soft-wash specialists
- Updated for 2026
Why algae is more than cosmetic
Algae colonies retain moisture against the tile surface and create a foothold for moss spores. Treating algae early prevents heavier moss growth from establishing.
Why choose us for roof algae removal Nottingham
- Local Nottingham roof cleaning specialists with deep knowledge of NG-postcode housing stock
- Fixed-price quotes in writing — no day-rate creep, no surprise extras
- Fully insured for working at height including public liability cover
- Soft-wash methodology that protects tile surfaces
- Gutter clearance included with every full roof clean
- Honest advice — if you don't need a clean we'll tell you
Related Nottingham roof services
Roof Cleaning
Full soft-wash, moss removal and biocide.
Learn more →Moss Removal
Manual scraping plus long-life biocide.
Learn more →Soft Wash
Low-pressure chemistry-led cleaning.
Learn more →Pressure Washing
For natural slate and stonework only.
Learn more →Gutter Cleaning
High-reach vacuum and downpipe flush.
Learn more →Tile Roof Cleaning
Concrete and clay tile specialists.
Learn more →Slate Roof Cleaning
Natural Welsh and composite slate.
Learn more →Roof Restoration
Clean, repoint, replace, recolour.
Learn more →Roof Inspection
Free survey with drone imagery.
Learn more →Cost Guide
Transparent 2026 pricing breakdown.
Learn more →Eco Roof Cleaning
Plant-safe, contained run-off.
Learn more →Frequently asked questions
Will the black streaks come back?
Back to Nottingham roof cleaning home or browse our expert blog.