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Roof Moss Removal: The Right Way (Crawley, Sussex & Surrey Guide)

  • Writer: Chris Gadney
    Chris Gadney
  • Apr 1
  • 3 min read

Updated: Oct 22



Roof moss removal



🥇 Crawley’s Trusted Roof Moss Removal Specialists

Based in Crawley, West Sussex, and working across Sussex and Surrey, Skyhawk Exterior Cleaning has built a reputation as one of the most trusted roof cleaning specialists in the region.

We use two professional cleaning methods depending on your roof’s condition and material:


🧱 1. Manual Roof Moss Removal (Dry Scrape + Biocide Treatment)

Manual scraping is the safest and most effective way to remove thick moss build-up, especially on older or more delicate roofs.

How It Works

  1. We use specialist scraper tools to gently remove moss, lichen, and debris by hand.

  2. Gutters and downpipes are cleared of any loose debris.

  3. Once dry, we apply a professional-grade biocide treatment (such as BAC50 or PureSeal Synergy) to kill any remaining spores deep in the surface.

  4. Over time, rain naturally washes away the dead organic matter, keeping your roof cleaner for years.

Why It’s the Right Way

  • No damage to tiles or underlay

  • Ideal for roofs not suitable for washing

  • Long-lasting results when followed by biocide treatment

Manual moss removal is best suited for older tiled roofs, heritage properties, or roofs with fragile surfaces.


💦 2. Low-Pressure Roof Washing (Soft Wash + Biocide)

For certain modern or durable roof types, a low-pressure roof wash is the most efficient method. This approach restores the appearance of the roof while remaining completely safe.

How It Works

  1. We use special low-pressure systems — never harsh jet washers — to clean the surface.

  2. This removes remaining dirt, lichen, and discolouration after moss removal.

  3. Once clean, we apply our biocide treatment to prevent regrowth for up to four years.

Why It’s the Right Way

  • Instantly transforms the look of the roof

  • Gentle enough for modern tiles and durable surfaces

  • Cleans and sanitises the roof surface safely

Low-pressure washing is perfect for younger tiled roofs, concrete tiles, or homes where appearance matters immediately.


🧴 Why Biocide Treatment Is Essential

Many companies skip this step — but it’s what actually makes a roof clean long-term.Our biocide treatments (BAC50 and PureSeal Synergy) kill organic spores deep in the roof surface, preventing moss, algae, and lichen from returning.

We include biocide with every roof clean, and all clients benefit from our 4-year no moss return guarantee (provided the roof isn’t directly under or beside trees).


🧮 How We Price Roof Moss Removal

We measure every roof using satellite imagery, applying a 1.4× multiplier to account for the roof pitch. This ensures you get an accurate quote based on the true cleaning area.

Typical prices:

  • Manual Roof Scrape + Biocide Treatment – from £750

  • Low-Pressure Roof Wash + Biocide Treatment – from £850

  • Larger or complex roofs – typically £1,000 – £2,000+

We also factor in:

  • Roof tile type and age

  • Access and safety requirements

  • Moss density and organic buildup

  • Obstacles such as conservatories or flat roofs

Every quote includes RAMS, insurance details, and a clear breakdown of work — no hidden extras.

🧠 Why Roof Moss Removal Matters

Moss may look harmless, but it traps moisture that can damage tiles and underlay, causing leaks and structural problems. It can also cause constant moss fall onto patios and driveways — one of the biggest complaints we hear from homeowners.

Regular roof cleaning helps:

  • Prevent roof leaks and tile damage

  • Reduce gutter blockages

  • Stop moss dropping onto patios and cars

  • Improve kerb appeal

  • Extend the lifespan of your roof


🦅 Why Crawley Homeowners Choose Skyhawk Exterior Cleaning

  • Local, family-run business with roots in Crawley

  • Covering West Sussex, East Sussex, and Surrey

  • IOSH Managing Safely trained and DBS-checked team

  • Fully insured with RAMS documentation for every job

  • Charity-backed — we donate to Sussex causes for every 5-star review

  • Trusted for professionalism, care, and lasting results


📞 Get Your Free Roof Moss Removal Quote



If you’re looking for roof moss removal in Crawley, Sussex, or Surrey, contact Skyhawk Exterior Cleaning today for your free, no-obligation quote.


📍 Based in Crawley | Covering Sussex & Surrey

📞 01293 922 243 | 07496 258 844


Skyhawk Exterior Cleaning – A Hawk Eye for Detail.

 
 
 

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Skyhawk Exterior Cleaning 

9 Hylands Close

Crawley 

West Sussex

RH10 6RX

Skyhawk Exterior Cleaning is a trading name of Skyhawk Flat Roofing Ltd.  

© 2025 Company Registration Number: 16157676,

Hylands Close, Crawley, RH106RX. 

Copyrights and Intellectual Property Rights owned by © 2025 SkyHawk Flat Roofing LTD. Website created by GSIX Web Design 

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