Roof Cleaning.
A moss-covered roof can spoil your home’s appearance and cause long-term damage if left untreated. Black Spot’s expert roof cleaning service removes moss, algae, and grime using low-pressure soft washing — a safe and effective method that protects your tiles while restoring your roof’s natural finish.
From careful debris removal to targeted biocide treatments, we deliver a thorough clean that lasts. Whether it’s preventative care or a full refresh, trust Black Spot to lift the look of your property and safeguard its condition.
Each Job is unique, and we tailor our approach accordingly — however, this overview outlines the typical process we follow for roof cleaning.
Roof Cleaning Process.
Inspection & Risk Assessment.
Every roof clean starts with a thorough inspection. We assess roof condition, check for cracked tiles, moss build-up, or structural concerns, and identify safe access points. Photos are taken for reference and to inform a detailed, no-obligation quote. This step ensures the right method is selected for your specific roof type and condition.
Itemised Quote.
Following our initial inspection, we will provide a detailed quote for the job. All Black Spot quotes outline the individual steps required to complete the work to a professional standard. Each stage of the process is itemised, allowing you to see the steps involved along with the associated costs, ensuring complete transparency with no hidden charges at the end of the job.
Moss Removal.
If heavy moss is present, it’s carefully removed using specialist tools or brushes. This step prevents blocked gutters, reduces moisture retention, and prepares the surface for treatment. In many cases, we avoid pressure to protect tiles from damage, especially on older or more delicate roofs.
Soft Wash Application.
Once the roof is cleared, we apply a biodegradable biocide treatment. This low-pressure soft wash safely kills remaining organic growth at the root — including lichen, algae, and moss spores. It continues to work over time, helping prevent regrowth and restoring the natural colour of the tiles.
Gutter & Ground Clean-Up.
All removed debris is cleared from your gutters, and we rinse down any affected walls, windows, or patios. We leave the area tidy and ensure water flow is fully restored to your drainage system. It’s the finishing touch that makes the whole exterior feel refreshed.
Maintenance Plans.
Black Spot’s tailored roof maintenance plans help keep your roof clean, protected, and performing at its best all year round. Scheduled soft wash treatments prevent moss, algae, and lichen from returning, reducing wear on your tiles and the need for future deep cleans. A smart, long-term solution for preserving the look and lifespan of your roof.
We’ve got you covered.
Black Spot Exterior Cleaning and Maintenance is based in Rickmansworth, Hertfordshire, we proudly serve the local community as well as customers across the South East and Greater London regions.
No job is too small, no surface too tough! Contact us today for a free, no-obligation quote.