Quick answer
When done correctly for the tile type, professional cleaning should not void warranties. Aggressive pressure or unapproved chemicals can cause problems, which is why method selection matters.
What you need to know
We match approach to tile manufacturer guidance where available.
Documented gentle methods and biocide use are standard on maintained roofs.
If your roof is under warranty, tell us so we can confirm a suitable method.
How David White can help
We assess each property individually before recommending work. For will cleaning void my roof warranty, that means checking access, roof or gutter condition, and any risks to neighbouring properties.
You can send your postcode and photos for a remote quote in many cases. If the job needs a closer look, we will say so upfront rather than guessing on site.
What to expect on the day
Our team works safely from ladders, towers or MEWPs depending on the building. We protect gardens, paths and driveways where moss or debris may fall, and we clear up when the job is done.
We will confirm timing, access and parking before we arrive so the visit runs smoothly for you and your neighbours.
Next steps
Call 0330 056 7751 or use the contact form with your postcode, photos and a short description of the issue. We cover roof cleaning and gutter work across London, Surrey, Sussex and Kent.