Power Washing Siding

Power Washing Siding: Step by Step Process

Homeowners are constantly faced with the decision of whether to power wash their siding. They also question if this job is worth doing themselves, or if they should hire a professional for this task. The answer to both these questions is yes! Power washing siding can be done by yourself and it will save you loads of time and money in the long run. Read on for more information on how to do it yourself!

Equipment and Tips

First, you should consider what kind of siding your house has. As a rule, cedar and brick homes require the most power washing, while vinyl requires the least. Also be sure to check for any surface damage that you may have from fallen tree branches or other sources before starting this project.

In order to power wash your siding, you will need a power washer with a low-pressure nozzle that reaches between 2500-3500 psi. Take care not to use too high of a pressure on the siding as it can cause damage over time, especially if it’s wood or vinyl siding. You will also need an extension cord capable of powering the machine, trisodium phosphate (TSP), rubber gloves and safety goggles to wear.

Once you have everything you need, it’s time to begin the project! First, mix your TSP in a five-gallon bucket filled with one gallon of hot water. Be sure to mix it thoroughly before use so that there are no clumps left at the bottom. Once mixed well, apply this solution lightly around all windows, doors, and trim on your house with a paintbrush or sponge mop. This is not the best choice for the siding itself due to its high concentration of chemicals, so be sure to use gloves when doing this step!

Next take your power washer hose and spray nozzle out to where you will be working. If using an extension cord, do not plug it in yet as you should be sure that it doesn’t trip a breaker or cause any other problems. It’s also not a bad idea to test your pressure washer on an inconspicuous spot of the house first to make sure you’re happy with the results.

Pressure Washing Machine with hot and cold water and 3,600 PSI
Pressure Washing Machine with hot and cold water and 3,600 PSI

Spraying the Siding

Once everything is in place and ready, turn on your power washer at the lowest possible setting and begin working up from the bottom. Start washing where water can easily pool onto the siding, which will be typically near windows or doors. Work your way up without overlapping each panel of siding by about two inches so that they dry properly after being sprayed.

After this step has been done, wait for 20-30 minutes before resuming work again. Turn off your power washer for the time being and soak the siding with water using a garden hose or if that’s not available, pour buckets of water over it. This may seem counter-intuitive to washing the house, but it will be necessary to remove excess dirt caught in between panels of siding. During this step, you should also check for any spots that are dirty enough to warrant scrubbing with TSP.

Once your 20–30-minute wait period has passed, resume power washing again starting from where you left off at the bottom and continuing up in order at least two feet in every direction. Be sure that during this process you do not damage your gutters or eaves when reaching them with the pressure washer nozzle!

Pressure Washing Siding
Before and After Pressure Washing Siding

When you’ve finished all areas around gables, rain spouts and other parts of the house, turn off your power washer again and cover any windows or screens. You can opt to do this by throwing a heavy fabric over them or using a piece of cardboard to shield the area from drips while it dries out.

Now that your entire siding has been cleaned, you should wait for another 30 minutes before going inside the house. This will be your final waiting period should you desire one after every step in this process.

Once all their waiting periods have passed, homeowners can remove their window coverings and resume normal activities around the home again without worry of getting any dirt onto freshly cleaned siding! All that’s left is take pride in knowing that your home looks even better than it did before!

 If you’re looking for more information on how to pressure wash your siding, check out this video!

First Class Clean
1325 Kirkland Rd Suite 101, Raleigh, NC 27603
(919) 210-6899

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