White powder
A light mineral deposit appears on top of the paver face.
White mineral deposits on pavers
Remove Efflorescence With the Right Treatment.
We identify the white deposit, evaluate the paver condition and use a cleaning approach appropriate for the surface.
Repair-first recommendationsLocal Ottawa service
Understand the deposit first
Efflorescence is mineral salt left at the surface.
Moisture can carry naturally occurring salts through concrete pavers. When the water evaporates, a white powdery or hazy deposit remains.
The surface should be identified and tested before stronger cleaners are used, especially when colour, texture or previous sealer may be affected.
Ask about your repairWhat to look for
Signs this repair may be needed.
A visible change in the surface can point to a problem with support, restraint or drainage beneath it.
Cloudy haze
Colour appears muted or grey-white across larger surface areas.
Recurring deposits
The appearance returns while moisture continues moving through the pavers.
Uneven appearance
Protected or wetter areas show a different tone than exposed areas.
The repair process
Fix the problem in the right order.
Every repair begins with the condition beneath the surface—not with a coating or cosmetic shortcut.
- 01Identify the condition
Distinguish mineral deposits from sealer failure, staining or surface wear.
- 02Test a small area
Confirm the cleaner and dilution are appropriate for the paver.
- 03Clean methodically
Apply, agitate and rinse the surface according to product requirements.
- 04Review after drying
Assess the result and decide whether further cleaning or protection is appropriate.
Clean before sealing
Do not trap visible mineral deposits under a coating.
Efflorescence and moisture conditions should be evaluated before a sealer is applied to the paver surface.
- Approach
- Lift, diagnose and relay
- Priority
- Correct the underlying cause
- Goal
- Preserve sound existing material
Common questions
Before you request a quote.
Send photos and a short description if you are unsure which repair applies.
Is efflorescence harmful to pavers?
It is generally an appearance issue rather than structural damage, but the surface should still be identified correctly before cleaning.
Will it return after cleaning?
It can return while salts and moisture continue moving through the paver. New concrete products may release deposits over time.
Can pressure washing remove it?
Water and pressure alone may not dissolve mineral deposits and can affect joints. A suitable efflorescence cleaner and controlled process may be needed.
Can pavers be sealed afterward?
Possibly, once the surface is clean, dry and suitable for the selected sealer. Existing moisture and deposits must be considered first.
Keep the pavers. Fix the problem.