How To Pressure Wash A Garage Floor

After months of neglect, a garage floor can look like a bad Picasso painting. Oil and grease stains, cobwebs dirt and debris, mud and much more besides. It’s got so bad that even you are noticing it.

It’s time to get it clean, but who has the time needed to scrub those grease stains for ages? Or wait while a degreasing agent does its work? No one, but it’s OK because we’re here to tell you the easiest way to clean your garage floor without wasting time, energy or water.

Using a pressure washer to wash the garage floor is not only fast, but it’s also fun too. Plus it uses 80% less water than just using a hose on average. To make it easier still, let’s get a few little points out of the way before we start.

The Easiest Way To Remove Grease And Oil Stains

Depending on how long these stains have had to soak into the concrete, power washing alone might not be enough. It’s best practice to soak these stains in the cleaning agent before you power wash them. Give the cleaner time to soak in for around 10 – 15 minutes before attacking the stain with the hot water.

Guide For Cleaning A Garage Floor With A Power Washer

pressure washing floor

For fast and easy results follow these steps.

  1. Clear the garage of any obstacles – Tools, garden furniture, cars, car parts etc all need to be removed from the garage to give you free access to the floor.
  2. Sweep the floor – To remove any loose dirt or debris.
  3. Apply degreasing agent to stains – Leave to soak in for 10 – 15 minutes to remove deeply ingrained stains.
  4. Using the white nozzle – Soak the concrete floor of the whole garage.
  5. Change to the black nozzle – And use the correct detergent for the garage floor.
  6. If you have a brush attachment – Use this to push the detergent into the stains to help to remove them.
  7. Work from the back – of the garage towards the door.
  8. Using the white nozzle – Rinse the whole floor from the back to the doorway.
  9. Use a floor squeegee – To remove as much water as possible.

What’s Best For Cleaning A Garage Floor A Pressure Washer Or A Power Washer?

This is a great question and to answer it properly we need to explain the difference between the two.

Pressure Washer

Pressure washers operate using cold water and rely on the water pressure to clean. They’re usually lower-powered than power washers and often cheaper to buy as well.

Power Washer

Power washers operate by heating up the water and then spraying it under pressure. Older power washers tended to be petrol-powered but nowadays some power washers are electric-powered too.

So what’s the best type for washing a garage floor? Due to the grease and dried in oil stains, hot water will clear these faster and more efficiently than cold water. So a power washer is best suited for cleaning a garage floor.

Electric-powered or petrol-powered?

Both will clean the grease and oil stains away, but electric are easier to use and safer. With an electric power washer, there is no chance of monoxide poisoning which cannot be said of petrol-powered washers, especially in a confined space like a garage. If you have a petrol-powered pressure washer it is advisable that you leave it outside the garage while operating the pressure hose and trigger gun inside.

Safety Instructions For Washing A Garage Floor With A Pressure Washer

We already spoke about the fumes from petrol-powered washers, but here are some safety reminders for your personal protection.

  • Never wear opened toed shoes or sandals when operating a pressure washer.
  •  Wear eye protectors to protect your eyes from chemicals and flying debris.
  • Be mindful of the dangers of mixing electricity with water.
  • Cover any electrical wall sockets in the garage to prevent splash hazards.
  • Be mindful of the force the water is projecting at, never aim at anyone.

Frequently Asked Questions

 Is it OK to pressure wash concrete?

As long as you use the correct nozzle it is perfectly safe to pressure wash concrete.

What do you use to pressure wash concrete?

For best results, use a power washer and a concrete detergent to pressure wash concrete.

What PSI should I use to clean concrete?

To clean concrete it is recommended to use a power washer with a pressure rating of 3,000 PSi.

Will a pressure washer remove concrete stain?

Pressure washers will remove concrete stains if you treat the stain first with a concrete detergent and allow to soak in for 10 – 15 minutes then remove using the power washer.

What is the best pressure washer to clean a garage floor?

Most pressure washers will do a great job of washing a garage floor. To see our list of the top pressure washers to buy, click here.

Leave a Reply

Your email address will not be published. Required fields are marked *