Garage cleaning: compare quotes and prices

What needs cleaning?

A single rented parking space is different from an entire underground car park. Identify the area first, then any additional components. Floor cleaning does not automatically include walls, ceilings or technical installations.

Understanding garage cleaning prices

Area, floor material, dirt and access influence the price. A machine working continuously on clear floors faces different conditions from one navigating occupied spaces and obstacles. Travel and setup can make the price per square metre higher for a small private garage.

One specific example from a Swiss price list checked in October 2026: sweeping and damp cleaning of cellar corridors or underground car parks is listed at CHF 6.49 per m² including 8.1% VAT. For 30 m², that surface item alone works out at CHF 194.70. Travel and materials are additional under that list. This is an individual service example, not a market average or a promised price for machine deep cleaning.

Comparable quotes distinguish sweeping, wet cleaning and additional stain treatment. Check edges, water supply, disposal, travel and VAT too. Older individual jobs with different scopes do not establish a reliable current price range.

Parking bays are not the whole floor area

The number of spaces is useful for an initial enquiry. A fixed price based on area must cover the actual work: bays plus any included driving lanes, ramps and ancillary spaces. Measuring only the bays can considerably understate a whole car park.

An illustrative calculation: 20 bays at 12.5 m² each total 250 m². Adding 150 m² of driving lanes gives 400 m² of floor. These assumed dimensions are not a standard for every garage, nor do they automatically measure walls and ceilings.

The area example could become this enquiry: “We would like 20 parking bays and their driving lanes cleaned, about 400 m² in total. The ramp needs assessing in addition and pricing separately. The floor has a coating, but we do not know the exact product. Three bays have older oil marks. The posted entrance height is 2.10 m. Management is still checking whether a usable water connection is available. Please include edge work and collection and disposal of dirty water. We would prefer cleaning in two stages. Please assess whether access can remain usable with that arrangement and how staging affects the total price.” An existing plan can identify the areas. The company confirms the area, machinery access and sequence; these details alone do not guarantee that the car park can remain in use during cleaning.

Consider the floor, oil and salt

Concrete, coated floors, asphalt and tiles require suitable products and machines. The contractor should account for known finishes, damaged areas and markings. More pressure or a stronger chemical is not automatically better.

Loose dirt and adhering deposits require different work. Oil, tyre marks and salt carried in during winter may need targeted treatment. Deeply absorbed stains cannot always be removed completely. Cracks, delamination and damaged protective layers need separate repair; cleaning does not fix them.

Prepare for the visit

Parked vehicles and stored items prevent cleaning underneath them. In shared facilities, the responsible manager should decide early who informs users and when spaces need to be clear.

1. Clear the agreed areas. Make bays, edges and access routes available at the agreed time. Cleaning in stages requires advance coordination.
2. Check access. Entrance clearance, ramps, doors and other restrictions affect the choice and delivery of machinery.
3. Confirm utility connections. Discuss water access and any necessary electricity supply. A missing water connection needs to be included in the quote planning.
4. Agree when the area can reopen. Keep the working areas clear during cleaning. The contractor should say when vehicles and pedestrians can use them again.

Plan where the dirty water will go

Wet-cleaning water can contain oil residues, fine wear particles and detergents. Collection and permitted discharge or disposal must be settled before work starts. A visible floor drain alone does not show where it leads or what it can receive.

The existing drainage and the actual contamination determine the approach. The cleaning company should coordinate with management where needed. Cleaning accessible drains, flushing pipes and servicing separators are separate tasks to distinguish in the quote.

Set the frequency and check the result

One interval would not suit every garage. Vehicle traffic, location, winter dirt and the desired result determine the need. Thorough cleaning after the road-salting season may make sense; regularly removing loose dirt is a different, potentially more frequent job.

Inspect the agreed areas and edges rather than just the central lane. Assess remaining stains against the outcome agreed beforehand. For recurring services, make clear which tasks are included every time and which are extras.

At handover, use the agreed bay numbers or the existing floor plan to record which bays, edges beside walls and columns, and ramps have actually been cleaned. Areas blocked by vehicles or stored items should be recorded as outstanding, with the next steps and any cost of another visit. Also check that swept debris and collected dirty water have been removed and any covers opened for the work have been properly replaced. Record remaining oil discolouration and pre-existing damage separately from missed cleaning tasks. For staged work, the company agrees the reopening of cleaned areas with the responsible contact.