Moss, algae, and dark deposits on your roof are not just cosmetic issues. The covering beneath them retains moisture for longer, is stressed by frost in winter, and its lifespan is shortened. But how much does it cost to have your roof professionally cleaned and protected? We will explain what the price consists of, what amount to expect, and when it is worth cleaning, coating, or even replacing the covering altogether.
Indicative price for roof cleaning
Roof cleaning, including protective impregnation, starts at €6/m² excluding VAT. If you want to restore the colour of your roof, coating starts at €12/m² excluding VAT.
For smaller jobs, there is a minimum call-out fee of €480 excluding VAT. A full team with equipment and safety measures will come to the roof, which is not cost-effective for just a few square metres.
Example calculation
- Family house, roof 150 m²: 150 m² × €6 = €900 excluding VAT for cleaning and impregnation.
- Larger house, roof 250 m²: 250 m² × €6 = €1,500 excluding VAT.
- Garage or smaller roof 60 m²: 60 m² × €6 = €360, but the minimum fee of €480 excluding VAT applies.
This is an indicative calculation. We will calculate the exact price for your roof for free – often we just need photos and an approximate area.
What affects the price
- Roof area: the actual area of the covering is calculated, not the built-up area of the house. For complex roofs with dormers and valleys, the area is larger than it appears at first glance. You can roughly calculate it from the length and width of the individual roof sections; we will measure it accurately.
- Type and condition of the covering: concrete tiles require a different approach than clay or older coverings. We always adjust the water pressure according to the type and condition of the covering to avoid damaging the surface.
- Degree of contamination: a thick layer of moss means more work than a light green coating.
- Pitch and height: on steep and high roofs, we work with safety measures, without erecting scaffolding. We use a work platform only in certain cases, and that rarely.
- Access to the house: it is important where to park the vehicle with equipment and where the water connection is located.
Cleaning, coating, or new covering?
Not every neglected roof requires the same treatment. The main factor is the condition of the covering itself:
- Cleaning and impregnation – when the covering is intact and solid, just overgrown with moss and algae. This is the cheapest way to restore its appearance and extend its lifespan.
- Cleaning and coating – when the covering is in good condition but faded or worn on the surface. Coating will restore its colour and create a new protective layer.
- New covering – when the tiles are cracked, crumbling, or the roof is leaking due to the covering itself. Replacement involves removing the old covering, installing a new one, and often new battens, making it significantly more expensive than cleaning or coating.
If you are unsure about the condition of your roof, send us photos. We will let you know right away whether it makes sense to clean, coat, or if it is no longer worth cleaning.
How to tell if your roof needs cleaning
- there are green or black spots and patches of moss on the tiles,
- the northern side of the roof is significantly darker than the southern side,
- moss and green deposits accumulate in the gutters,
- the covering remains dark and wet for a long time after rain.
The sooner moss is removed, the less work is involved in cleaning, and the less damage is done to the covering.
Why impregnation is worthwhile
Cleaning alone will clear the roof, but algae and moss will return without protection. Therefore, after cleaning, we treat the roof with impregnation with a 5-year guarantee. The covering will then absorb less water, dry faster, grow moss more slowly, and stay clean for longer.
Compared to replacing the covering, this is a fraction of the cost and, for a covering that is otherwise in good condition, a sensible investment to extend its lifespan.
What is included in the price
- arrival of the team with equipment and safety measures for working at height,
- thorough cleaning of the covering with pressure adjusted according to its type and condition,
- protective impregnation with a 5-year guarantee,
- handover protocol, which also serves as a warranty certificate.
How to prepare for our arrival
- clear a parking space as close to the house as possible,
- prepare access to an outdoor water tap,
- repark any vehicles that are under the roof or near the house,
- close windows and roof windows.
Frequently asked questions
Is the price per m² including VAT?
No, the prices listed are excluding VAT. We will specify the VAT rate in the offer according to the type of building and job.
Do you need to come and see the roof to provide a quote?
Often not. Photos of the roof and an approximate area are sufficient – send them via the form on the website or on WhatsApp. For larger jobs, we are happy to arrange a site visit.
When is the roof cleaned?
Best from spring to autumn. For impregnation, the surface must be at least 5 °C and it must not be raining; we can manage the actual cleaning even in worse weather.
How long does cleaning take?
It depends on the area and condition of the roof. We will inform you of the date and estimated duration of the work in advance in the offer.
Want to know how much it will cost to clean your roof? Check the price list, send us photos, or call +420 774 509 409. You will receive a free quote within 24 hours.
