Extend the life of your roof with our expert cleaning and restoration services. Serving Donegal, Leitrim, Sligo, and Fermanagh, we specialize in safe moss removal, manual scraping, and steam cleaning. Protect your home from water damage and restore its appearance with our fully certified, high-access team.
Your roof is the first line of defence against the harsh North West climate, but it is also the most susceptible to organic growth. Over time, moss, lichen, and algae can take hold, retaining moisture and causing tiles to degrade. At North West Exterior Specialists, we provide a comprehensive roof restoration service that goes beyond aesthetics. We utilize a range of professional techniques, from manual scraping to low-pressure steam cleaning, tailored specifically to the age and material of your roof tiles.
Safety and property integrity are our top priorities. We don’t believe in walking on your tiles unless absolutely necessary, which is why we utilize specialized high-reach equipment and towers to perform our work. By removing years of organic buildup and treating the surface with Pureseal-certified biocides, we ensure your roof is not only clean but biologically sanitized to prevent regrowth. This professional approach protects your investment and ensures your roof remains weather-tight and visually stunning for years to come.
By removing heavy moss and lichen, we eliminate the primary cause of "frost-cracking" in roof tiles. Our service ensures that water can flow freely off your roof as intended, preventing moisture from seeping into the sub-structure and protecting the wooden battens and felt beneath.
Roof cleaning is a high-risk task that requires professional expertise. Our team is fully IPAF and PASMA certified, meaning we are qualified to use cherry pickers and scaffolding towers. This allows us to reach every peak and valley of your roof safely, without putting unnecessary pressure on your tiles.
Allowing moss and lichen to grow unchecked on your roof can lead to significant structural problems. Moss acts like a sponge, soaking up rainwater and keeping it in constant contact with your tiles. In the winter months, this trapped moisture undergoes a “freeze-thaw” cycle—expanding as it turns to ice and causing tiles to crack, delaminate, or shift. Furthermore, heavy moss growth frequently falls into guttering systems, leading to blockages and potential damp issues within your walls.
Investing in a professional roof clean is a proactive way to avoid these costly repairs. Our specialized process removes the weight and moisture-wicking properties of organic growth while restoring the original colour of your home. By treating the tiles with professional-grade biocides after cleaning, we kill the microscopic spores that remain in the porous surface of the tile, providing a long-term solution that keeps your home protected and looking its best.
Established in 2003, North West Exterior Specialists has grown into a leading provider of professional cleaning and maintenance services. With over 20 years of hands-on experience, our reputation is built on a foundation of technical expertise and a small, dedicated team motivated by absolute customer satisfaction. We understand that your property is a significant investment, which is why we approach every project—from residential driveways to large-scale commercial contracts—with the same commitment to precision and care.
To maintain our high standards, we continuously invest in professional training, industry certification, and state-of-the-art equipment. Our team is fully qualified in specialized height access and chemical treatments, holding IPAF, PASMA, and City & Guilds credentials alongside our Pureseal and Biocide certifications. This ensures that whether we are performing delicate soft washing for algae removal or high-reach steam cleaning, we operate with the highest level of safety and technical proficiency. At North West Exterior Specialists, we believe no job is too big or too small, offering bespoke maintenance plans designed to keep your property in peak condition year-round.
Choosing the right team to maintain your property means finding a balance between experience, safety, and results. With over two decades in the industry, North West Exterior Specialists provides a level of expertise that goes beyond a simple clean. We treat every home and business with the utmost respect, using proven techniques and professional-grade equipment to ensure your surfaces are not only restored to their original beauty but also protected for the future.
With a history dating back to 2003, we bring more than two decades of hands-on experience to every project.
Our team holds industry-recognised certifications—including IPAF, PASMA, and City & Guilds—ensuring we are fully qualified to operate high-access machinery.
We believe in using the best tools for the job, which is why we continually invest in the latest equipment, training and certifications.
Operating across Donegal, Sligo, Leitrim and Fermanagh, we understand the local climate and its impact on exterior surfaces, therefore highly experience in offering suitable resolutions






To ensure the best possible results for your property, we follow a structured, professional approach on every project. We don’t believe in “one size fits all” cleaning; instead, we assess the specific materials and biological growth present to determine the safest and most effective method.
Before any work begins, our team conducts a thorough inspection of the area to identify surface types, levels of organic growth, and any potential access challenges. We prioritize safety by setting up necessary high-access equipment—such as cherry pickers or towers—and ensuring the workspace is secure for both our technicians and your property.
We prepare the site by protecting surrounding landscaping, sensitive fixtures, and drainage points. Depending on the service, this stage may involve manual debris removal or the scraping of heavy moss buildup. This ensures that our cleaning treatments can penetrate deep into the surface for the most effective restoration possible.
Using our advanced steam technology or specialized soft washing systems, we apply the chosen cleaning method with total precision. Whether we are utilizing high-pressure for hard stone or Pureseal-certified biocides for delicate render, we focus on eradicating algae, lichen, and grime at the source to deliver a flawless finish.
Once the cleaning is complete, we perform a final low-pressure rinse to remove any remaining residue and ensure the site is left tidy. We then walk through the project with you to guarantee 100% satisfaction, confirming that the results meet our high standards and providing advice on how to maintain the clean for the long term.
We understand that you may have questions about the best way to maintain your property’s exterior. Whether you are curious about the difference between soft washing and pressure washing or need to know how we handle safety at height, we have compiled the most common inquiries from our clients. Our goal is to provide you with clear, transparent information so you can make the best decision for your home or business. If you don’t see your question answered here, please feel free to reach out to our team directly.
We aim to minimize foot traffic on your roof to avoid the risk of cracked tiles. Whenever possible, we work from cherry pickers, towers, or specialized roof ladders. Our goal is to complete the clean using high-access equipment that ensures the weight is distributed safely and your property remains protected.
We generally advise against high-pressure jet washing for roofs, as it can strip the protective granular surface from tiles and force water into the roof space. Instead, we utilize manual scraping, low-pressure washing, or specialized steam cleaning, which is far gentler but highly effective at removing stubborn growth.
Roof cleaning can be a messy process, which is why we include a full site tidy-up in our service. We block your downpipes before starting to prevent clogs, and once the roof is finished, we clear all fallen debris from your gutters, patios, and walkways, leaving your property spotless.
Depending on the size of the house and the amount of moss buildup, most residential roofs take between one and two days. This allows us enough time for a thorough manual scrape, the cleaning process itself, and the final application of the biocide treatment.
Yes, we have experience cleaning various materials, including concrete tiles, clay tiles, and natural slate. We adjust our methods—such as using more delicate steam cleaning for slate—to ensure the specific requirements of your roof material are met without any risk of damage.
Ready to restore your property’s exterior? Whether you have a quick question about our “Man and a Cherry Picker” hire or need a comprehensive maintenance plan for a commercial site, we are here to help. Simply fill out the form below with your details and the services you are interested in, and a member of our dedicated team will get back to you shortly to discuss your requirements.
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