Interlock Pressure Washing Ottawa Ottawa
Interlock pressure washing in Ottawa removes dirt, moss, stains, and buildup that make pavers slippery and discoloured. Professional cleaning restores your interlock appearance while protecting the structural integrity that DIY pressure washing often damages.
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Signs You Need Interlock Pressure Washing Ottawa
What Pressure Washing Removes
Professional cleaning eliminates years of accumulated contamination:
Organic Growth
- Moss and algae (green/black discoloration)
- Lichen (crusty patches)
- Mold and mildew
- Weed roots in joints
Surface Contamination
- Ground-in dirt and soil
- Tire marks and rubber deposits
- Leaf stains and tannins
- Pollen and environmental fallout
Stains
- Oil and grease spots
- Rust marks
- Efflorescence (white mineral deposits)
- Paint splatters
- Food and beverage spills
Buildup
- Salt residue from winter
- Hard water deposits
- Fertilizer staining
- Construction debris
Safe Pressure Levels for Interlock
Not all pressure washing is equal—too much pressure destroys interlock:
Safe pressure range: 1,500 - 2,500 PSI
What we control
- **PSI (pressure)** – Enough to clean, not damage
- **GPM (water flow)** – Adequate rinsing without erosion
- **Nozzle angle** – 25-40 degree tips, never zero-degree
- **Distance** – Proper standoff from surface
- **Technique** – Consistent sweeping motion
Paver-specific considerations
- Concrete pavers: More pressure tolerant
- Clay pavers: Require gentler approach
- Natural stone: Varies by type
- Aged pavers: More fragile than new
Why DIY Pressure Washing Can Cause Damage
Rental pressure washers in untrained hands cause serious problems:
Joint Damage
- High pressure blasts polymeric sand from joints
- Creates channels for water infiltration
- Requires complete re-sanding after cleaning
- Cost of re-sanding often exceeds professional cleaning
Surface Damage
- Etching and pitting of paver faces
- Stripping of surface sealers
- Uneven cleaning patterns (striping)
- Edge chipping from direct spray
Structural Issues
- Base erosion from concentrated water
- Destabilizing edge restraints
- Creating new low spots
- Accelerating existing problems
Common DIY mistakes
- Using zero-degree nozzles
- Holding wand too close
- Inconsistent technique
- Ignoring joint sand loss
- Pressure washing wet surfaces
When to Re-Sand After Pressure Washing
Pressure washing affects joint sand—here's how we handle it:
Minor sand loss (surface level)
- Top up with matching polymeric sand
- Included in our cleaning service
- No additional charge
Moderate sand loss (1/3 joint depth)
- Partial re-sanding recommended
- Additional service quoted separately
- Best done while surface is clean
Severe sand loss (1/2+ joint depth)
- Full re-sanding required
- Often combined with sealing
- Bundle pricing available
Our Interlock Pressure Washing Ottawa Process
We follow a proven process:
Pre-Inspection
Assess paver type, joint condition, stain types, and any structural concerns before starting.
Pre-Treatment
Apply appropriate cleaning solutions: alkaline cleaners for organic growth, degreasers for oil stains, acid solutions for efflorescence. Allow proper dwell time.
Surface Cleaning
Using commercial equipment with controlled pressure: surface cleaner attachments for even coverage, consistent overlapping passes, special attention to stained areas, edge and corner detailing.
Rinse and Neutralize
Thorough rinsing removes all cleaning agents and loosened debris. Neutralizing where chemicals were used.
Joint Assessment
Evaluate joint condition post-cleaning. Minor sand loss is topped up; significant loss requires re-sanding.
Final Inspection
Verify complete cleaning and address any remaining spots.
Interlock Pressure Washing Ottawa Cost in Ottawa
Project Examples:
- Driveway (400-600 sq ft): $350 - $600. Patio (200-400 sq ft): $250 - $450. Walkway (50-150 sq ft): $250 - $350. Minimum service charge: $250 - $350.
Service Areas
We provide interlock pressure washing ottawa throughout Ottawa:
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Contact us today for a free, no-obligation estimate for your interlock pressure washing ottawa project.