Roof Cleaning: What Does It Cost?

Cleaning a roof costs an average of 9 euros per square meter

A roof cleaning typically ranges between 4 and 14 euros per square meter.

The importance of roof cleaning – preventing moisture damage

There is no legally required interval for having your roof cleaned.
However, lichens, moss, and algae can cause long-term damage, so if heavy growth occurs, cleaning is highly recommended. Dirt and discoloration are also valid reasons for a cleaning.

Houses located in shady or damp areas are usually more affected by such growth. While a small amount of moss is harmless, extensive coverage indicates that a cleaning should be done.

We recommend hiring a professional roofer or cleaning specialist for the job. Instead of immediately using a pressure washer, an expert will first assess the condition of your roof and provide a detailed cost estimate. They can clean the roof safely and professionally while also carrying out minor repairs if needed.

On average, roof cleaning costs around 9 euros per square meter.

The following factors can influence the total price:

• Roofing material

• Reason for the cleaning

• Cleaning method used

• Additional services such as sealing or coating

• Extra costs due to special requirements

Are there any subsidies available?

If you decide to replace your old roof instead of repeatedly cleaning it, you may benefit from attractive funding programs.

When improving your roof’s insulation performance, the KfW (German Development Bank) often offers low-interest loans and grants.

To qualify, ensure that the heat transfer coefficient (U-value) of the roof does not exceed 0.24 watts per square meter per Kelvin.
If the value is lower, you are eligible for funding, and both energy consultants and craftsmen can help you with the application.

What additional costs can arise?

In addition to the actual cleaning costs, there may be extra expenses during the process.

This can happen if the roof is difficult to access, requiring scaffolding or other special equipment.

You will also need to pay for travel costs of the specialist. If your property is outside their service area, they may charge a travel fee, typically between 10 and 50 euros, depending on the region.

If you also have a photovoltaic system on your roof that needs cleaning, expect an additional 2.50 euros per square meter for that service.

How much does a roof cleaning cost?

The exact cleaning method depends on how dirty the roof is. The goal is always to clean as gently as possible to avoid reducing the roof’s lifespan.

Here is an overview of typical professional cleaning costs:

Additional measures like coating or sealing help prevent future roof damage and extend the time between cleanings.

Make sure your contractor analyzes the situation properly and explains your options so you can make an informed decision together.

Example Calculation: Roof Cleaning

Below is an example for cleaning a roof of 80 square meters, using the high-pressure method. Additionally, 10 square meters of photovoltaic panels are cleaned.