Spring parking lot cleaning: when and how to do it
In Quebec, the spring cleaning of a commercial parking lot is done as soon as the snow has melted and the risk of frost has passed, generally between mid-April and the end of May. It consists of removing the accumulated sand, gravel, salt and calcium, degreasing the oil stains, then pressure washing the surfaces. Here is why and how.
Updated
Why clean your parking lot after winter
- Salt and calcium attack concrete and asphalt and speed up their deterioration.
- Sand and gravel get tracked indoors and wear down floors and carpets.
- Debris clogs the drains and leads to standing water.
- A clean parking lot makes a better first impression on customers and tenants.
The steps of a parking lot cleaning
- Pickup of the accumulated sand, gravel and debris.
- Pre-treatment of oil and grease stains with a professional degreaser.
- Pressure washing of driving lanes, sidewalks and curbs.
- Management of the wash water to comply with stormwater regulations.
Indoor and underground parking
Indoor and underground parking garages also collect the calcium brought in by vehicles, but they can be cleaned year-round because they are protected from frost. One wash in the spring and one in the fall is a good rhythm for most buildings.
How to limit the closure of the parking lot
The work is done in sections, early in the morning, in the evening or on weekends, to keep some of the spaces available. A notice to users a few days before the job prevents vehicles from being left in the work area.