Quick Answer: You can pressure wash artificial grass, but only if it has no infill and is laid on a solid base like concrete. Always use a wide spray tip at low pressure (under 1500 PSI) and keep the lance at least 12 inches away. For most lawns, brushing, rinsing, or using an enzyme cleaner is a safer way to clean.
If your lawn is looking dusty, flattened, or a bit grimy, it is natural to wonder whether a jet wash will sort it quickly. The short answer is: sometimes, but not always safely.
You can pressure wash artificial grass in certain situations, but it depends on how the lawn was installed, what sits underneath it, and whether the turf contains infill. Used the wrong way, a pressure washer can lift seams, shift infill, flatten fibres, and force dirt or odours deeper into the base.
In this guide, we’ll explain when pressure washing artificial grass is safe, when it is best avoided, and what to do instead if you want to clean fake grass without causing damage.
Jump to:
- Is It Safe to Pressure Wash Artificial Grass?
- When You Shouldn’t Use a Pressure Washer
- How to Clean Artificial Grass Properly
- How to Pressure Wash Artificial Grass Safely
- Can You Use a Karcher on Artificial Grass?
- Better Alternatives to Pressure Washing
- Artificial Grass Cleaning Machines
- FAQs About Pressure Washing Fake Grass
Is It Safe to Pressure Wash Artificial Grass?
Yes, you can pressure wash artificial grass in some situations – but it is not the safest or best cleaning method for every lawn.
The main risk depends on how the grass was installed. If the turf contains sand or rubber infill, has visible seams, or sits on a softer base, the force of a pressure washer can displace materials, disturb the surface, and shorten the life of the lawn. That is why pressure washing fake grass is usually something to approach with caution rather than as a standard cleaning routine.
If your artificial grass has no infill and has been installed on a hard base like concrete, then a low-pressure rinse from a safe distance can sometimes be used. Even then, gentler cleaning methods are usually better.
When You Shouldn’t Use a Pressure Washer
If any of the following apply, it is usually better to avoid jet washing artificial grass altogether:
- 🟩 The lawn contains infill such as silica sand, rubber, or Envirofill
- 🟩 The grass was laid on a softer build-up over soil or sand
- 🟩 There are visible joins, edge details, or repair patches
- 🟩 The lawn is made from a lighter domestic-grade product
- 🟩 You are dealing with pet odours rather than surface dirt
⚠️ Pro Tip: Pressure washers can displace infill, lift seams, and damage fibres – especially if you spray directly downward.
How to Clean Artificial Grass Properly
Most artificial lawns do not need pressure washing to stay clean. In fact, regular low-impact maintenance is usually the best way to keep fake grass looking good without risking damage.
Here’s what works best for most homes:
| Method | Best For |
|---|---|
| Soft-bristle brush | Lifting fibres and removing debris |
| Hose rinse | General dirt and light pet mess |
| Turf enzyme cleaner | Smells, bacteria and pet urine |
| Power brush | Larger areas or flattened turf |
✅ Read our full Artificial Grass Maintenance Guide for step-by-step care advice.
How to Pressure Wash Artificial Grass Safely
If you do decide to use a pressure washer, keep it gentle. The goal should be to rinse the surface, not blast into the pile or base.
- ✅ Use a wide fan tip rather than a narrow, turbo, or pinpoint setting
- ✅ Keep the lance at least 12 inches away from the grass
- ✅ Work at a low angle, not straight down into the turf
- ✅ Keep the pressure low and controlled
- ✅ Avoid areas with obvious joins, infill, or pet toilet build-up
🚫 Installer’s Warning: Any turf damage caused by pressure washing is not covered under warranty. If in doubt, contact us for advice.
Better Alternatives to Pressure Washing
You don’t need a jet washer to keep your lawn looking new. Try these safer options:
- 🧹 Power brushing to revive flattened areas
- 🚿 Hose + enzyme cleaner to banish odours
- 💼 Book a professional clean once a year for a full refresh
“You can revive a tired-looking lawn with the right kit – no jet washer needed.”
Can You Use a Karcher on Artificial Grass?
A lot of people asking about pressure washing are really asking whether they can use a Karcher or similar jet washer on fake grass. The answer is the same: only with caution.
If you use a Karcher on artificial grass, keep the setting gentle, use a wide spray pattern, and never force water directly down into the lawn from close range. A Karcher can rinse surface dirt off some hard-base, no-infill installations, but it is not the best routine method for most domestic artificial lawns.
Artificial Grass Cleaning Machines
If you want something more effective than a basic hose and brush, there are artificial grass cleaning machines designed specifically for this job. These are usually a better option than pressure washing because they lift debris, refresh the pile, and clean the surface without forcing water aggressively into the lawn.
- 🧹 Artificial grass sweepers/hoovers – collect leaves and dust without damaging fibres.
- ⚡ Electric turf sweepers – battery-powered models for quick garden cleans.
- 💨 Power broom systems – combine brushing with light suction for deep refreshes.
If you’d rather not invest in a machine, our maintenance service brings professional-grade kit to your lawn for a one-off or annual clean.
FAQs About Pressure Washing Fake Grass
Still unsure? Here are some of the most common questions homeowners ask about jet washing artificial grass.
Can you jet wash artificial grass?
Sometimes, yes – but only with caution. It is safest on no-infill lawns laid on a solid base, and even then it should be done gently from a distance.
Can you pressure wash Astroturf?
Yes, but the same risks apply as with other artificial grass products. Low pressure, a wide spray pattern, and careful technique are essential.
What PSI is safe for artificial grass?
Keep it low. As a general rule, stay at around 1500 PSI or below with a wide fan tip rather than a concentrated jet.
Will pressure washing remove dog smells from fake grass?
Not reliably. Pet odours often sit deeper in the pile, infill, or underlay, so a turf-safe enzyme cleaner is usually the better option.
Can pressure washing lift seams or damage the lawn?
Yes. If the spray is too strong or too close, it can disturb joins, displace infill, flatten fibres, and shorten the life of the installation.
What is the safest way to clean artificial grass?
For most lawns, the safest method is regular brushing, occasional rinsing with a hose, and using artificial grass cleaners or enzyme treatments where needed.
Are there machines that clean fake grass?
Yes. Electric sweepers, power brooms, and specialist artificial grass cleaning machines are available if you want a deeper clean without the risks of a pressure washer.
Can I hire a professional to clean artificial grass?
Yes – and for heavily used or pet-exposed lawns, that is often the safest choice. See our maintenance service here.
Need Help Keeping Your Lawn Pristine?
Whether it’s lifting the pile, removing pet odours, or reviving tired turf – our professional artificial grass cleaning service can handle it for you.
Book a yearly refresh or ask us for tailored advice – we’ll help you get more from your lawn, for longer.
