Restaurant and building terrace cleaning in Geneva
Restaurant terrace, building roof terrace or office outdoor space: we restore the surface without attacking the substrate.
Liability insurance — AXA
full professional coverage
Fixed, trained teams
vetted and recurring staff
Quote within 24h
fast response, fixed price
Geneva & Lake Geneva
service 7 days a week
The green film returning every spring is not inevitable
Around Lake Geneva, mild damp winters are ideal for moss and algae. They settle first in the joints and micro-roughness, then colonise the whole surface. The problem is not only visual: paving covered in algae becomes slippery, and a slippery restaurant terrace is an accident risk for your customers.
We always separate two stages: removing what is there, then slowing its return. A plain pressure wash cleans but leaves spores in the joints; the green comes back within a season. A long-lasting treatment applied after drying changes the durability of the result significantly.
Pressure is not the same on every surface
Sound concrete paving takes high pressure. Exotic hardwood, composite, porcelain stoneware or soft natural stone do not. A badly set lance on a timber deck board tears the fibres: the surface becomes rough, gets dirty faster afterwards and cannot be recovered without sanding.
We match pressure, nozzle and distance to the substrate, and we test in a corner before treating the whole area. On timber we work along the grain, more slowly. It is less spectacular to watch, but it is what preserves the terrace.
Our approach
Pressure calibrated per substrate
Paving, timber, composite, stoneware and natural stone need different nozzles and distances.
Long-lasting moss treatment
Applied after drying to slow recolonisation, not simply rinsed off.
Joints and edges included
Green growth always starts in the joints; treating them changes how long the result lasts.
Slip safety
Priority on circulation areas and customer access in public premises.
Water management
Controlled run-off, drains protected, furniture and planting moved or covered.
Out-of-service timing
Before a restaurant opens or outside office hours, so operations are not interrupted.
What's included
Same hourly rate as our other pressure-washing work — published, with no hidden extras.
- Pressure test on a discreet area before treatment
- Outdoor furniture moved or protected
- High- or low-pressure cleaning according to substrate
- Treatment of joints and edges
- Removal of moss, algae and lichen
- Long-lasting treatment applied after drying
- Drains protected and run-off managed
- Furniture replaced and final inspection
How it runs
1. Assessment
Surface, substrate type, joint condition, exposure and water access.
2. Test and quote
A discreet test sets the permissible pressure, then we quote hourly or as a package.
3. Cleaning
Full pass in the direction suited to the substrate, joints treated separately.
4. Treatment and handover
Long-lasting treatment on a dry surface, furniture replaced, joint inspection.
Our terrace options
Same hourly rate as our other pressure-washing work — published, with no hidden extras.
One-off
Spring restoration
from CHF 55.–/h
by surface and access
- Prior pressure test
- Joints and edges treated
- Furniture moved and replaced
- Run-off managed
With long-lasting treatment
To space out visits
On quote
by surface
- Full clean
- Moss treatment after drying
- Effect across several seasons
- Maintenance advice
Seasonal contract
Restaurant, building, office terrace
On quote
scheduled visits
- Guaranteed spring visit
- Autumn follow-up
- Priority before season opening
- Consolidated rate
The amounts above are floor prices, not closed packages: they cover a standard job. The final price depends on the actual duration and difficulty of the work — surfaces, frequency, access and condition of the premises. Your quote is free, issued after a visit, and does not change once given. For up-to-date rates, get in touch.
Estimate your monthly budget
Pick the length of one visit and how often per week. The calculation uses the hourly rate published on this page.
Per visit
CHF 110.–
Per month
dès CHF 1'430.–
13.0 visits/month on average
Basis: CHF 55.–/h (published rate)
Indicative minimum, excluding specific work (high-rise windows, floor treatments, dedicated products). The fixed quote is issued after a site visit.
Request a fixed quoteTerrace cleaning — frequently asked questions
Can pressure washing damage my timber terrace?
Yes, and it is the most common mistake. A lance that is too powerful or held too close tears the wood fibres: the board becomes fuzzy, gets dirty faster afterwards and can only be recovered by sanding. On timber we lower the pressure, widen the nozzle and work along the grain. The result is less immediate but the terrace stays intact.
How long before the moss comes back?
Without a long-lasting treatment, often a single season — especially on a shaded or north-facing terrace. With treatment applied to a dry surface you usually gain several seasons. Exposure and the immediate surroundings (trees, standing damp) matter more than the product used.
Do you charge hourly or as a package?
Both are possible. For a one-off visit we apply the published hourly rate, the same as for our other pressure-washing work. For a large surface or a seasonal contract a package is clearer: we price it after seeing the terrace.
Do I need to clear the terrace beforehand?
No, we handle it: furniture, planters and parasols are moved and put back. If items are fragile or very heavy we discuss it at the quotation stage so it is planned rather than improvised on the day.
Do you also clean railings and glazing?
Yes, and it is the right moment: the team and equipment are already there. Cleaning a glass railing after the terrace avoids seeing dried splashes on the glass a week later.
Can you work in winter?
Mechanical cleaning remains possible outside frost periods. The long-lasting treatment, however, needs a dry surface and a minimum temperature: applying it to cold, damp paving simply wastes it. In that case we clean and return for the treatment in spring.
Other services
A terrace to restore?
Give us the surface area and substrate type; we propose a slot before the season opens.