Can Pressure Washing Damage Your Awnings? What You Need to Know

Awnings are a great way to enhance your outdoor space, providing shade and style. But when it comes to cleaning them, many homeowners wonder: Can I use a pressure washer? While pressure washing is a quick and effective way to clean many outdoor surfaces, it can be risky for awnings if not done correctly. Here’s what you need to know to avoid costly damage.

Why Pressure Washing Can Be Dangerous for Awnings

1. High Pressure Can Damage Fabric

Awnings are typically made from durable but delicate materials like acrylic, polyester, or vinyl. The intense force of a pressure washer can:

• Fray fibers and weaken the fabric.

• Tear seams or loosen stitching.

• Force water underneath the material, leading to mold and mildew growth.

✅ Solution: If you must use a pressure washer, keep it on the lowest setting (under 500 PSI) and hold the nozzle at least 2-3 feet away from the fabric.

2. Water Can Get Trapped in Roller Mechanisms

Retractable awnings have moving parts that aren’t designed to handle high-pressure water. Blasting water directly at the roller or motor can:

• Rust internal components.

• Warp the mechanism, making retraction difficult.

• Void the manufacturer’s warranty.

✅ Solution: Avoid spraying directly at the roller tube or motor. Instead, use a gentle hose spray for those areas.

3. It Can Strip Protective Coatings

Many awnings have water-resistant or UV-protective treatments. Pressure washing can:

• Remove these coatings, leaving the fabric vulnerable to sun damage and stains.

• Cause premature fading and deterioration.

✅ Solution: Hand-wash with a mild soap solution or use a soft brush attachment on a low-pressure setting.

4. It May Spread Stains (Not Remove Them)

Instead of lifting dirt, high-pressure water can:

• Drive stains deeper into the fabric.

• Spread mildew spores, making the problem worse.

✅ Solution: Pre-treat stains with a vinegar-water mix or a specialized awning cleaner before rinsing gently.

When Is Pressure Washing Acceptable?

If your awning is extremely dirty and made of a sturdy material (like Sunbrella®), you might use a pressure washer—but with extreme caution:
✔ Use a wide-angle nozzle (40° or wider).
✔ Keep pressure below 500 PSI.
✔ Test on a small, hidden area first.

Safer Alternatives to Pressure Washing

For most awnings, these methods are far safer and just as effective:

• Soft-bristle brush + mild detergent (e.g., dish soap).

• Garden hose with a fan-spray nozzle.

• Professional awning cleaning services (like Go Awning!).

Need Expert Help? Call Go Awning!

Don’t risk damaging your awning with DIY pressure washing. Our professional cleaning services use:
✔ Gentle, effective techniques
✔ Specialized cleaners for your awning type
✔ Protective treatments to extend its life

📞 Contact us today for a safe, thorough clean!