
Pressure washing uses cold water for general cleaning, while power washing uses heated water to remove tough grime, grease, and mold. Choose power washing for stubborn stains and commercial-grade cleaning; pressure washing works well for regular maintenance.
Table of Contents
- What is Pressure Washing?
- What is Power Washing?
- Key Differences Between Pressure and Power Washing
- Which Surfaces Should You Use Each On?
- Cost Comparison
- Safety Tips for Homeowners
- FAQs
- Get Started Today
What is Pressure Washing?
Pressure washing uses high-pressure cold water to clean dirt, mold, and mildew from surfaces like driveways, siding, and decks.
Key Points:
- Cold water only
- Removes surface grime
- Suitable for routine home maintenance
“Pressure washing is ideal for homeowners looking to maintain exterior surfaces without risking damage from hot water or harsh chemicals.”
What is Power Washing?
Power washing uses heated water (sometimes combined with detergents) for a deeper clean.
Key Points:
- Hot water breaks down grease and stubborn stains
- More effective on concrete, driveways, and commercial surfaces
- Requires professional-grade equipment
“For tough stains, mold, or oil, power washing is far more effective than standard pressure washing.”
Key Differences Between Pressure and Power Washing
| Feature | Pressure Washing | Power Washing |
|---|---|---|
| Water Temperature | Cold | Hot |
| Cleaning Strength | Medium | High |
| Best For | Routine home maintenance | Tough stains, commercial-grade cleaning |
| Surface Risk | Low | Higher if done incorrectly |
| Cost | Lower | Higher |
Which Surfaces Should You Use Each On?
Pressure Washing:
- Vinyl siding
- Wooden fences
- Patios & decks
Power Washing:
- Concrete driveways
- Garage floors
- Areas with oil or grease buildup
“Using the correct method protects your surfaces and prevents costly damage.”
Cost Comparison
| Method | Average Cost per 1,000 sq. ft. |
|---|---|
| Pressure Washing | $100 – $200 |
| Power Washing | $150 – $300 |
“Power washing costs more due to specialized equipment and labor but delivers a deeper, longer-lasting clean.”
Safety Tips for Homeowners
- Hire professionals for power washing: to avoid damage from hot water or high PSI.
- Wear protective gear: gloves, goggles, and closed-toe shoes.
- Avoid delicate surfaces: painted wood, old siding, or thin tiles.
- Maintain proper distance: keep nozzle at least 12 inches from surfaces.
Get Started Today
Protect your home, improve curb appeal, and remove dirt safely. Get a Free Quote from NJM Roof & Gutter Cleaning today and choose the right cleaning method for your property.
FAQ
Can I use pressure washing instead of power washing?
For light dirt and mildew, yes. For grease, mold, or tough stains, power washing is more effective.
How often should I clean my driveway or siding?
Pressure washing: every 12–18 months. Power washing: as needed for stubborn stains.
Is power washing safe for wooden decks?
Only if performed by a professional using proper PSI and distance to avoid splintering.
What equipment do I need at home?
Pressure washers are available for DIY. Power washers often require professional-grade units.
Is power washing better than pressure washing?
Power washing is better for tough stains, grease, mold, and commercial-grade cleaning because it uses heated water to break down grime. Pressure washing is sufficient for routine maintenance, like removing dirt and mildew from siding, decks, and fences. The “better” method depends on your surface type and cleaning needs.
Is power wash the same as pressure wash?
No. Pressure washing uses cold water and relies on water pressure to clean, while power washing uses hot water (sometimes with detergents) for a deeper clean. Hot water makes power washing more effective for stubborn stains and grease.
What are the disadvantages of a pressure washer?
Pressure washers can:
1. Damage delicate surfaces if the PSI is too high
2. Cause splintering on wood decks
3. Strip paint or siding if misused
4. Require careful handling to avoid injury from high-pressure water
Can I power wash concrete?
Yes. Concrete driveways, patios, and sidewalks are ideal for power washing because they can handle high pressure and hot water, which effectively removes oil stains, dirt, and mold.
What should not be pressure washed?
Avoid pressure washing:
1. Delicate surfaces like old wood, painted trim, or soft siding
2. Windows, which can break under high pressure
3. Roof shingles, which can loosen or damage protective granules
4. Surfaces with loose mortar or bricks
How often should you power wash a house?
For most homes, every 1–2 years is sufficient. High-traffic areas, homes in humid climates, or houses near trees may require annual power washing to prevent mold, mildew, and dirt buildup.


