The best time of year for roof cleaning

Every homeowner knows that taking care of their home's exterior is a crucial part of maintaining its value, appeal and longevity. One of the most overlooked aspects of property maintenance is roof cleaning. Over time, your roof accumulates moss, algae, lichen, dirt and debris, which can not only degrade its appearance but also reduce its lifespan. So, when is the best time of year to get your roof cleaned?

Why do roofs need to be cleaned?

Before we pinpoint the best time of year for roof cleaning, it's essential to understand why it's necessary. Roof cleaning is an important task that not only improves the appearance of your home but also its structural integrity. Over time, dirt, algae, moss, lichen and other debris can accumulate on the roof's surface, trapping moisture and leading to the deterioration of roofing materials. If roofs are left to deteriorate it can lead to leaks, water damage and even structural issues if left unchecked. Regular roof cleaning helps prevent moisture retention, therefore extending its lifespan. The build up of debris on the roof can also create habitats for pests such as insects, birds and rodents. Regular cleaning and removing the debris will keep these pests at bay. For more information take a look at our other blog "The importance of regular roof cleaning”.

What is the best time of year for roof cleaning?

1. Late spring to summer is the optimal period for roof cleaning in the UK. During these months, the weather is typically stable and mild, providing ideal conditions for professionals to work efficiently, especially with the advantage of longer days and favourable weather. By this time, most of the winter debris, including leaves and twigs, would have already fallen, making the cleaning process smoother. Undertaking the cleaning in this window also ensures effective removal of moss, algae, and lichen, preventing them from causing further damage or growth in the upcoming seasons.

2. Autumn also presents an ideal timeframe for roof cleaning in the UK. By addressing the roof during these months, homeowners can effectively clear off debris that accumulates throughout the summer and the onset of autumn, preparing the roof for the upcoming winter. This proactive approach is particularly essential since wet and icy conditions during the colder months can intensify existing roofing issues. Moreover, a thorough cleaning in early autumn ensures that gutters and downspouts remain unobstructed, positioning them to efficiently manage the winter weather.

Things to consider

1. Weather - avoid roof cleaning on days with strong winds, rain, or when frost or ice is predicted. Not only can these conditions make the roof slippery and dangerous, but they can also make cleaning ineffective.

2. Moss and algae - if you're specifically targeting moss, algae, or lichen, you might need to consider the lifecycle and growth patterns of these organisms. Moss tends to grow actively during wetter months (autumn and winter). Hence, treating roofs during late spring or summer when moss isn't in an active growth phase can be effective.

3. Safety - roof cleaning, especially on sloped surfaces, can be dangerous. Always prioritise safety. If you're unsure about doing it yourself, it's wise to hire professionals who have the necessary equipment and expertise.

What are the benefits of cleaning your roof at the right time?

Regular maintenance and timely cleaning of your roof come with a myriad of benefits. Firstly, it plays a significant role in extending the roof's lifespan. By routinely removing harmful growths such as moss, algae and lichen, you prevent them from deteriorating your roofing material. This not only safeguards the structural integrity of your roof but also ensures that it serves its purpose for a much more extended period.

Secondly, the aesthetic appeal of a house can be greatly improved with a clean roof. It enhances the overall curb appeal of your home. Whether you're gearing up to put your property on the market or simply wish to be the talk of the town amongst your neighbours, a pristine roof can significantly elevate the visual appeal of your home.

Lastly, there's the crucial factor of energy efficiency. A roof laden with dirt and debris tends to absorb more heat. This phenomenon can inadvertently warm up your home, especially during the scorching summer months. Cleaning your roof can help reflect more sunlight away from your house, ensuring that the interior remains cooler and potentially saving on energy costs.

How do professionals clean roofs?

Professional roof cleaning involves a combination of specialised equipment, effective cleaning solutions and expertise. The goal is to remove debris, algae, moss, lichen and any other contaminants without causing damage to the roof. Here's a step-by-step look at how professionals approach roof cleaning:

1. Safety first - before starting any cleaning process, professionals ensure safety measures are in place. This includes wearing protective gear, using safety harnesses, setting up ladders securely and making sure the work area is cordoned off to prevent accidents.

2. Inspection - the first step in the cleaning process is a thorough inspection. This helps identify problem areas like moss or algae growth, damaged tiles, or other issues that might need special attention.

3. Clearing debris - using special tools professionals remove loose debris like leaves, twigs and dirt from the roof. This provides a clear surface for more in-depth cleaning.

4. Soft washing - instead of relying on high pressure, soft washing uses special cleaning solutions to break down contaminants. After applying the solution, professionals let it sit for a while, then rinse it off with low-pressure water. This method is particularly suitable for older roofs or roofs made of materials that might be damaged by high-pressure washing. This is the method of choice for professionals, for more information take a look at our other blog "Soft washing - the preferred method for cleaning roofs”.

5. Post-cleaning inspection - after the cleaning process, a professional will inspect the roof again to ensure all problem areas have been addressed and to check for any potential damage or areas that might require repair.

What are the benefits of soft washing?

In the ever-evolving world of roof cleaning, soft washing has emerged as the premier solution, combining innovation with gentle care. Unlike traditional high-pressure methods, which can be abrasive and potentially damaging, soft washing harnesses the power of specialised cleaning solutions to break down and eradicate dirt, algae, moss and lichen. The process is not just about cleaning, but also ensuring the longevity and integrity of the roofing material. With state-of-the-art soft washing technology, professional roof cleaners can deliver a thorough clean without the risks associated with high-pressure techniques, ensuring homeowners receive the best care for their roofs.

This technology involves a low-pressure application, meaning the cleaning agents, which are eco-friendly and safe for surrounding plants and wildlife, do the bulk of the work. After a short dwell time, these agents are rinsed off, revealing a pristine and revitalised roof beneath. Not only does soft washing preserve the attractive appearance of a roof, but it also extends its lifespan by effectively combating harmful growths that can compromise its structure. For homeowners seeking an advanced, reliable, and non-abrasive cleaning method, soft washing technology stands out as the gold standard in modern roof care.


In conclusion, while you can technically clean your roof at any time of the year, late spring to summer and early autumn emerge as the most favourable periods. These times offer moderate temperatures, reduced chances of rainfall and align well with the growth cycles of damaging moss and algae. Regular cleaning not only maintains the aesthetic appeal of your home but also safeguards the longevity of your roof. Remember always to prioritise safety, roof cleaning is definitely a job best left for the professionals. For more information take a look at our other blog "DIY Vs Professional Roof Cleaning”.

AM Property Services - trusted roof cleaning in Manchester

At AM Property Services, we pride ourselves on combining years of professional expertise with cutting-edge equipment to deliver unmatched roof cleaning services in Manchester. Whether you have traditional tiles, a flat roof, or any other roofing material, our skilled team understands the unique care each type requires. Our advanced equipment ensures a thorough clean without causing damage, restoring the original charm and adding years to your roof's life. So if you are based in Manchester and are looking for a reliable roof cleaning company, don’t hesitate to get in touch with us today for more information or to schedule an appointment. Contact us now and discover why we are the premier choice for professional roof cleaning services in Manchester.
By AM Property Services