Best Chemicals To Use To Clean A Driveway

What’s up, guys? Welcome back to the Lean and Mean Academy! Today, we’re on-site with Ben Wilson, one of our six-figure earners from the Inner Circle, tackling a concrete driveway cleaning job.

If you’re a homeowner looking to get your driveway spotless or a pressure washing business owner wanting to refine your chemical mixes and techniques, this post is for you. We’re going to break down the best chemical for driveway cleaning, the proper bleach dilution ratio, and the pressure settings you should use for the best results.

But before we dive in—Serious Starter Bootcamp is coming up! If you're looking to take your pressure washing business to the next level, this is the event you don’t want to miss. Whether you're just getting started or trying to scale to six figures, Serious Starter will give you the strategies, tools, and confidence you need to succeed.

And if you’re serious about learning the full process of washing concrete, houses, and commercial properties, as well as blending chemicals and understanding the right pressures to use, check out our How to Wash Course with:

✅ Mike Vidan
✅ Coty Yarbrough (Southeast Softwash)
✅ Justin Rogers
✅ Myself (Lean and Mean Academy)

👉 Click the first link in the description or comments to enroll!

The #1 Chemical for Cleaning Driveways: Industrial-Grade Bleach

When it comes to concrete driveway cleaning, the best chemical—hands down—is sodium hypochlorite (bleach). It’s effective at killing algae, mold, and organic growth that cause dark stains and slippery surfaces.

Why Not Use Store-Bought Bleach?

A lot of homeowners pick up bleach from Home Depot, Lowe’s, or Walmart, but here’s the issue:

🔹 Store-bought bleach is typically 6% concentration at most
🔹 Professional-grade bleach (used by pressure washing companies) is 12.5% concentration at peak strength
🔹 Over time, bleach degrades, so store-bought jugs may be even weaker by the time you use them

The takeaway? Professional-grade bleach is twice as strong as homeowner-grade bleach, making it much more effective at killing algae and loosening dirt.

The Right Bleach Ratio for Driveway Cleaning

So, how do we mix our bleach for concrete cleaning? It depends on how dirty the driveway is.

📌 For this job, the driveway had moderate algae growth, meaning we didn’t need an overly strong mix.

The Perfect Bleach Mix for This Driveway:

✔ 3% bleach solution (Diluted from 12.5%)
✔ Applied to loosen dirt and kill algae
✔ Followed by pressure washing with a surface cleaner

How to Mix a 3% Bleach Solution:

If you’re using 12.5% professional-grade bleach, you need to dilute it properly to achieve a 3% mix:

✅ 1 part bleach (12.5%)
✅ 3 parts water

This dilution is strong enough to kill algae and brighten the concrete without overusing chemicals.

🔹 For heavier stains and deep algae buildup: You may need a 50/50 mix of bleach and water.
🔹 For light dirt and maintenance cleaning: A 1-2% mix may be enough.

The Importance of Using a Surface Cleaner

Now that the bleach has loosened the dirt and algae, it’s time for the fun part—pressure washing!

In the background of our video, Ben Wilson is using a surface cleaner to make short work of the driveway.

Why Use a Surface Cleaner Instead of a Wand?

✔ Even pressure distribution – Prevents streaks and lines
✔ Faster cleaning – Covers more area in less time
✔ Safer for concrete – Prevents etching that can occur with a wand

For driveways like this, using a surface cleaner with moderate pressure is key. Too much pressure can damage the concrete, while too little pressure won’t remove the loosened dirt effectively.

💡 Pro Tip: If you’re new to pressure washing, always test in an inconspicuous area to ensure you’re not using too much pressure on older or delicate concrete surfaces.

Final Thoughts – Get the Best Results Every Time

To sum it up, the best chemical for cleaning your driveway is 12.5% sodium hypochlorite (bleach), properly diluted to match the level of dirt and algae.

📌 For most driveways, a 3% mix works perfectly—strong enough to kill algae without overusing chemicals.
📌 Always pair your chemical treatment with a good surface cleaner for even, professional-looking results.

🚀 And don’t forget—Serious Starter is coming up! If you're ready to make serious moves in the pressure washing business, this event will give you the roadmap to success.

If you want to master the full process of soft washing, pressure washing, and chemical mixing, don’t forget to check out our How to Wash Course linked below!

💬 Drop a comment below with your bleach ratio guess before reading—did you get it right?

👉 See you in the next video!