How To Pressure Wash A House

If there is one thing that bothers most people when cleaning their house, it is the fact that hard-to-reach areas, such as the sides or gutters, tend to be ignored simply because they are difficult to clean and maintain. Fortunately, a power washer can solve this cleaning problem. All you have to do is learn the steps on how to pressure wash a house using the ever-helpful tool – pressure washer!

Pre-Cleaning Best Practices

Before you learn how to pressure wash a house, you must first learn the pre-cleaning tips. Here are a few things that you should do before you pressure wash your home:

Schedule Your Pressure Washing Task

First of all, pressure washing your house consistently is a must because of all the dirt, molds, and other substances that can accumulate over time. Pressure washing the hard-to-reach areas of your house can prevent these unwanted substances from growing. Schedule your pressure washing at least once a year.

Repair Broken Parts

Pressure washers are extremely strong– strong enough to damage further the already depreciating parts. For this, you have to make sure that you fix all the damaged parts of your house’s exterior before you start.

Move Away all Electrical Materials

Once water hits something electrical, that would be pretty dangerous. To protect yourself from electrocution or electric shocks, don’t forget to take away all electrical materials and wires from the area you are about to clean.

Close All Windows and Doors

Lastly, don’t forget to close all windows and doors so that you don’t pressure wash the inside of your house and cause damage to the furniture.

What To Consider When Pressure Washing A House

To learn how to pressure wash a house successfully, you must know the basic of pressure washer equipment first. It pays to do some research when buying the right pressure washer. You may also want to consider renting a pressure ?washer instead. Here are some things to know about pressure washer:

The PSI and GPM

These two units are very important to remember because they represent the machine’s power. The GPM, in particular, determines the flow rate of water. The Ideal GPM of your machine should be at least 2.3 GPM (usually 2,600 PSI) to clean a regular sized house. A machine with 5 GPM is, even better, even if the PSI might be lower.
Man cleans his car with a very powerful high-pressure commercial washer

The Nozzle and the Extension Wand

If you have a high house and would like to clean the higher parts, then it’s recommended that you use a 25 or 40-degree nozzle to aim higher. If you want to reach an even higher level, let’s say if you have a two or three storey house, then you’d best use an extension wand to reach and clean those parts meticulously. Hook up your hose to those nozzles and extension wand.

Cleaning Solution

Lastly, you must use recommended cleaning solutions. Although the strength of the water can already wash away dirt and dust, the molds and mildew won’t be moved by just pressure alone. There are certain substances that need extra power in order to be taken out. This is when cleaning solutions will come in handy.

Cleaning The House

You’ll want to start at spraying the easiest parts like the walls and the roof. From there, you can move to the sidings. Common sidings like wood, vinyl, and stucco would usually be quite fragile, so it’s important to first repair the damaged parts before pressure washing them. Lastly, get to work on cleaning the gutters. For these, you may want to get a bent nozzle so that it can reach the gutter areas near the roof. Otherwise, you may also clean the gutters after you have done your roof.

Knowing When To Call A Professional

Do remember that there is some dirt that you can’t get rid of no matter what you do. Sometimes stubborn fungus will just keep on coming back regardless of how much pressure you apply. For these cases, it’s important to know the limits of your machine. When this happens, it’s time to call the professionals for help.


When learning how to pressure wash a house, these are some of the things you should take note of. Always remember to do your research before you start your cleaning; otherwise, it could be dangerous. Review some of the tips given above and start your pressure washing task.

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