Short answer: garage decks need water reclamation, because runoff carries hydrocarbons and heavy metals into the storm system. Work is overnight, sectioned by level, and priced from $0.10–$0.25 per square foot.
An open parking lot gets rinsed by every storm. A covered garage deck never does — so oil, brake dust, tyre rubber and coolant accumulate continuously, and the concrete goes progressively darker until the lighting no longer compensates.
That matters commercially. A dark, stained garage reads as unsafe long before it is unsafe, and for retail, medical and multi-family properties that perception affects whether people park there again.
It also matters legally. Runoff from a garage deck carries hydrocarbons and heavy metals, and under most municipal stormwater rules it cannot simply be flushed into a storm drain. Reclamation is not an upsell here — on a covered deck it is the compliant way to do the job.
Not sure what your property needs?
Send photos. We will tell you what we would do and roughly what it costs — even if the answer is that it can wait.
Water reclamation and why it matters
Cleaning a garage deck without capture takes everything on that floor and sends it into the storm system, which in Jacksonville generally discharges to the St. Johns or a tributary.
Reclamation means containing the wash water at the drains, recovering it with a vacuum system, and disposing of it appropriately. It adds equipment, time and cost. It also means the property is not the one named when a stormwater inspector traces a discharge.
Ask any contractor bidding a covered deck how they handle wash water. If the answer is vague, that is your answer.
Decks, ramps, stairwells and drip lines
| Area | Method | Notes |
|---|---|---|
| Garage deck / drive lanes | Surface cleaner + reclamation | The main area by square footage |
| Oil drip lines in bays | Degreaser + hot water | Where accumulation concentrates |
| Ramps and turn areas | Surface cleaner | Highest tyre-rubber deposit |
| Stairwells and landings | Hand + surface cleaner | Most complained about; often the worst-smelling |
| Elevator lobbies | Surface cleaner, low | First impression on every level |
| Entry aprons and sidewalks | Surface cleaner | Visible from the street |
| Painted striping and curbs | Reduced pressure | Pressure lifts old thermoplastic |
| Columns and wall bases | Soft wash | Usually painted; blasting strips it |
Stairwells deserve a specific mention. They collect spills, urine and organic growth in a confined space with poor ventilation, and they are the single most common source of complaints about a parking structure. They also take hand work rather than a surface cleaner, so they are priced separately — and they are worth doing more often than the deck.
Working around the property
- Overnight is standard for retail, office and medical. Adds roughly 20% and avoids closing revenue-generating spaces.
- Sectioned by level or bay so the structure never fully closes.
- Signage and cones supplied — wet concrete under garage lighting is genuinely hard to see.
- Drain locations mapped first, which decides where containment goes and dictates the work sequence.
- Ventilation checked on lower decks before any hot-water work begins.
For multi-level structures we usually recommend the top deck annually — it takes weather as well as traffic — and covered levels every six to twelve months depending on how heavily they are used.
Areas where we do this most
Answers
Parking structure questions
How much does parking lot cleaning cost in Jacksonville?
Do you reclaim the wash water?
Can you work overnight?
How often should a parking garage be cleaned?
Will cleaning damage the painted striping?
Can you remove oil stains from the parking bays?
Related
What people usually book alongside this
Get a real number, not a range
Send a few wide shots plus close-ups of the worst areas and we will price it properly.
Or email hello@jaxpropressurewash.com
What helps us quote fast
- One wide shot of each side that needs cleaning
- Close-ups of the worst staining
- Your address, so we can check the property size
- Roughly when it was last cleaned