How to Clean Decking with Pressure Washer?

ToolsBrilliance is reader-supported. We may earn a commission through products purchased using links on this page. Learn more about our affiliate disclosure

A pressure washer is a tool with two to four high-pressure jets mounted on a rotating bar that swivels as water goes through it.

This movement produces a constant cleaning pattern that can be used to quickly clean flat surfaces. They use electric motors or gas engines to power a pump that pressurizes water from your garden hose to 1,000 pounds or more before forcing it out through a spray wand.

It is also known as power washing, which is the process of cleaning surfaces and objects with a high-pressure water spray to remove loose paint, sludge, chewing gum, dust, mildew, dirt, and filth.

A mechanical pressure washer’s volume is measured in gallons or litres per minute and is usually fixed.

It has a few drawbacks, one of which is the danger of damaging the external body. It can not only damage the paint but also make a dent, and fixing car paint and dents can be expensive. This is particularly true if the water pressure is not properly adjusted.

Types of Pressure Washer

  • Electric Pressure Washer: It comes with a cord that needs to be hooked into a 110 V or 240 V power supply. These power washers are occasionally used for business applications and are usually mounted on portable hand carts for the convenience of moving.
  • Hot Water Pressure Washer: Washers that pump heated water are unquestionably useful for both large and little cleaning chores that require a little more strength and involve tough stains. Cost is an important issue to consider when purchasing a hot water pressure washer because they are typically powered by gasoline.
  • Petrol Pressure Washers: These are quite common power washers with gas engines that drive pressure pumps. They are capable of producing the greatest amount of water pressure.
  • Chemical Mixture Pressure Washer: These are offered in two designs: one with a chemical tank that supplies solvents or soaps to the pressure wand and the other with a solution tank that feeds the pump. Solvents or soap will be combined with water and delivered under pressure via a pump.

Advantages of Pressure Washer

  • They are quite simple to use. Even if you’ve never used a pressure washer before, it doesn’t take long to find out how to use one.
  • One of the best things about pressure cleaning your surfaces is that it can do almost anything. You may use it on practically any exterior surface, such as a back deck or driveway, or even the siding of your home, to make it seem brand new, just like the day you moved in.
  • One of the most advantageous aspects of using a pressure washer is that it speeds up the cleaning process by at least five times.

Disadvantages of Pressure Washer

  • They are quite powerful and maybe too much for some surfaces to handle.
    Exterior surfaces, such as loose vinyl siding or loose wood, cannot withstand all of the strain and may begin to decay or break off, and may even split under the weight of the load. If your surface is painted, the pressure washer can damage the paint and cause it to peel off.
  • Not only can the power of the water damage you, but a pressure washer is distinct from a hose in that it is a machine. As with any machine, you must carefully study the user instructions to use it properly and avoid injury from the machine part itself.
  • Even if you connect your pressure washer to your garden hose and use the water from the hose, the force of the water from an ordinary hose is no match for a pressure washer.

Applications of Pressure Washer

  • Chimney sweep services
  • Parking lot and driveway washing
  • Window washing
  • Drain, duct and gutter cleaning
  • Pool cleaning
  • Other outdoor maintenance cleaning activities

How to Clean Decking with Pressure Washer?


Take extra precautions. Despite their usefulness, pressure washers cause hundreds of injuries each year, including lacerations that can lead to serious infections if the concentrated spray penetrates deep into muscle tissue. Long pants, strong shoes, and goggles are required. Also, avoid wearing loose clothing or jewellery, as they can attract you into the spray.


Make the necessary preparations. Begin by removing all things from the deck, particularly those that are breakable. Then, sweep any loose debris, such as leaves, away. This will aid in the removal of difficult stains caused by mildew, tree sap, and other similar substances.


To assist in dislodging any entrenched filth, use a deck cleanser (if the deck is only lightly soiled, you can probably skip this step). Begin by filling the pressure washer’s soap dispenser with the cleanser according to the manufacturer’s directions.

These may include rinsing adjacent plants with plain water before and after applying the cleanser. The cleaner and water will be combined by the pressure washer, so you won’t have to bother about diluting it.

After that, attach the suitable soap-dispensing nozzle to the pressure-washer wand’s tip. Then, start the machine and use lengthy, overlapping strokes to distribute the cleaner all over the deck.


Work the cleanser into tight corners and between rails with a hard scrub brush; do not allow the detergent to dry to avoid staining.


Set the spray nozzle to its widest setting (not counting the one you just used for the soap). Begin pressure washing the deck in broad sweeping motions, moving with the grain of the wood.

Maintain a distance of roughly two feet between the nozzle and the surface, and move closer as needed. If you come any closer than 6 inches, the wood will be damaged. Turn off the machine and pull the trigger to relieve any remaining pressure and empty the waterline after you’re finished.

After cleaning your deck, it may be time to reapply a protective wood stain. Solid stains outlast semi-transparent stains in Consumer Reports tests, while semi-transparent stains are reasonably durable and enable some of the wood grain to show through.


The pressure washer’s movement produces a regular cleaning pattern that may swiftly clean flat surfaces. To learn how to clean decking using a pressure washer, simply follow the procedures mentioned above.

Read: How to Clean Patio Slabs with a Pressure Washer?


How should one clean decking with a pressure washer?

The easiest approach to clean decking with a pressure washer is to use a wash brush attachment and a low-pressure setting for superb cleaning results that are easy and gentle on the wood.

What is the best way to pressure wash a deck without removing stains?

When cleaning a deck, set your pressure washer at a low to medium setting to avoid damaging the wood. One of the most essential things to remember is that using the high-pressure setting on your power washer may cause damage to your wood and leave marks that will not be covered up by a wood stain.

We will be happy to hear your thoughts

Leave a reply

Tools Brilliance
Enable registration in settings - general