Pressure Washer PSI for Concrete: What You Need to Know
If you’ve been wondering about the right pressure washer PSI for concrete, you’re asking a smart question. Using the correct pressure is crucial to get a clean, streak-free finish without damaging your driveway, patio, or paths.
At Dunse Power Cleaning, we’ve worked on concrete surfaces all over Livingston and the central belt of Scotland — here’s what you need to know.
What Is PSI and Why It Matters
PSI stands for pounds per square inch — it measures how powerful the water jet is. The higher the PSI, the stronger the water stream. Concrete is durable, but using too much pressure can still cause surface damage, etching, or leave marks.
Recommended PSI for Concrete Cleaning
- General cleaning: Medium PSI levels are usually enough for dirt, dust, and light algae.
- Stubborn stains: Oil, rust, or tyre marks may need higher pressure combined with detergents.
- Avoid going too high: Extremely high PSI can chip the surface, especially on older or weathered concrete.
Professionals use commercial machines with adjustable pressure, allowing them to match the PSI to the exact job and surface condition.
Why Professional Cleaning Is Safer
- Correct PSI settings: We use just the right amount of pressure to clean without damage.
- Specialist equipment: Our machines are more powerful and more precise than DIY models.
- Cleaning agents: We pair pressure washing with eco-friendly detergents for deeper results.
- Experience matters: We know how to handle delicate areas like expansion joints and edges.
Risks of Using Too Much PSI
- Etching or scarring the concrete surface
- Blowing out expansion joints
- Creating uneven cleaning lines
- Wasting water and time with poor technique
FAQs About Pressure Washing Concrete
Can I use a domestic pressure washer?
Yes, but be careful with the settings — many home units lack precision.
Will higher PSI clean faster?
Sometimes, but technique and detergents are just as important as raw pressure.
Do you offer stain removal?
Yes — we use treatments for oil, rust, and tyre marks as part of our service.
Final Thoughts
The right pressure washer PSI for concrete depends on the condition of your surface and the type of stains you’re tackling. Professional cleaning ensures your driveway or patio is cleaned safely, evenly, and with lasting results.
Want your concrete driveway or patio looking like new? Get a free quote today from Dunse Power Cleaning and let the experts handle it.
