At Rea Window & Exterior Cleaning, we offer roof cleaning services across Warrenpoint, Burren, Rostrevor, Mayobridge and Newry. Moss build-up can retain moisture and affect the look of your roof, which is why safe removal and treatment is important.
For larger exterior cleaning services such as roof cleaning, pressure washing and gutter clearing, we also cover Newry and surrounding areas more widely.
We provide two roof cleaning options depending on your preference: a manual moss scrape followed by biocide treatment, or a steam clean for immediate visual results with long-term protection.

We’re more than just window cleaners—we’re a team dedicated to making your spaces brighter and healthier. Every service we provide is guided by three core values:
Safe and Effective Roof Cleaning in Warrenpoint
Every roof is assessed before work begins to ensure the most suitable cleaning method is used.
Manual Moss Removal with Biocide Treatment
This option involves carefully scraping moss from the roof surface, followed by a professional biocide application. The moss is removed immediately, while the biocide continues to break down remaining organic matter over 6–12 months and helps prevent regrowth for up to three years.
Steam Roof Cleaning with Biocide Protection
For more immediate results, steam cleaning safely removes moss and surface build-up, visibly brightening the roof on the same day. A biocide treatment is then applied to help prevent future growth and protect the surface.
Clean and Controlled Process
Care is taken throughout the job to minimise mess and ensure surrounding areas are respected during the cleaning process.
Our aim is to restore your roof’s appearance while providing lasting protection.
If your roof is affected by moss or organic growth, contact us to discuss professional roof cleaning in Warrenpoint.
Homeowners across Warrenpoint and surrounding areas rely on us for safe, professional exterior cleaning services delivered with care.
Find answers to common questions about our roof cleaning service.
Yes. We assess each roof before work begins and use either careful manual scraping or controlled steam cleaning methods appropriate for the roof type.
After treatment, the biocide continues working over 6–12 months and can help prevent moss regrowth for up to three years, depending on environmental conditions.
We provide roof cleaning across Warrenpoint, Burren, Rostrevor and Mayobridge, and carry out larger exterior cleaning projects throughout Newry and surrounding areas.
Manual scraping removes moss straight away and is followed by biocide treatment for gradual improvement. Steam cleaning provides more immediate visual results, followed by biocide protection.
Yes, we are fully insured for all services provided.
Have a question or ready to book roof cleaning in Warrenpoint? Get in touch today and we’ll be happy to help.