Beware of Unprofessional Facade Washing: High Pressure Can Do More Harm Than Good

4. 4. 2025

Recently, more and more companies have been appearing on the market offering facade washing at extremely low prices. Although this may sound tempting at first glance, we strongly advise against rushing into choosing a contractor based on price alone. You could end up doing more harm than good to your facade, and the subsequent repairs will be far more costly…

We have confirmed cases from our customers where the insulation of apartment buildings was irreparably damaged due to the use of unsuitable — and above all excessively high — water pressure. This mistake is common among companies that have only recently been established, have no experience with different types of facades, and rely solely on the power of their machinery rather than professional expertise. Unfortunately, it is precisely such companies that often win various HOA facade cleaning contracts simply on the basis of their low price.

What damage can poor facade washing cause?

Facade washing is truly not just a matter of using water and ordinary cleaning products. It is essential to know how much pressure can be applied in order to remove all moss and algae while keeping the facade fully functional.

  • Insulation damage: excessively high pressure can damage the surface finish and even the insulation system itself.
  • Water ingress: inadequate sealing of windows and joints can lead to water penetrating the building.
  • Destroyed surface structure: instead of a clean facade, you are left with patchy or even crumbling render.
  • Shortened facade lifespan: an inappropriate intervention can lead to earlier repair needs or premature renovation.

Facade repairs are far more costly once damage has occurred, which is why care must be taken during washing.

Why choose an experienced company?

With a professional company, it is not just about having quality equipment. The key is knowledge of materials, choosing the correct pressure and appropriate cleaning products, and above all a sensitive approach. Every type of facade requires an individual solution. Umyjem to has been on the market since the very beginning of this industry, we have extensive experience and have already washed a great many different facades. Our team consists solely of trained professionals who know exactly what they are doing.

What to look out for when choosing a facade washing contractor?

  • Check how long the company has been operating on the market
  • Ask for references and real examples of completed work
  • Find out what cleaning methods they use and why

How do we wash facades?

At Umyjem to, we wash facades as gently and effectively as possible. We use aerial work platforms, which allows us to avoid damaging the facade — for example, when erecting scaffolding. We then use high-pressure equipment to remove all dirt and deposits from your facade.

How to handle facade washing within an HOA?

Facade washing is an often overlooked but very important task within a homeowners association (HOA). Addressing this task should be part of the property maintenance plan. It is advisable for the HOA committee to first initiate a professional inspection of the facade's condition and then select a verified company specialising in building cleaning. The costs of facade washing and maintenance are then distributed among the owners in accordance with the pre-established bylaws.

Facade washing is important for several reasons — regular washing extends the lifespan of the facade and prevents the growth and accumulation of moss and algae, whose spores can pose a health risk to the building's residents. When choosing a company, however, pay close attention to their experience and references. It is better to prevent problems than to deal with unnecessarily costly repairs later.

Frequently asked questions

How much does facade cleaning cost?

Facade washing is always individual, depending on the size of the building and the type of facade. Contact us and we will be happy to provide you with a free tailored quote.

How do you remove mould from a facade?

Removing accumulated mould, moss and algae requires sufficient water pressure and the use of products specifically designed for this purpose.

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dirty = unhealthy facade?

Did you know that a dirty building facade can be a health hazard?

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