Deck Power Washing Wellington

Captain Splash offers a professional deck cleaning service in the Wellington region. With our specialised power washing treatment your deck will look like new.

Our deck wash treatment does not only remove visible dirt and debris but deep cleans your deck to prevent damage and make your deck last longer.

What is deck power washing?

Wooden decks are exposed to the elements and are easily taken over by moss, lichen, algae and covert in dirt and stains. 

Deck power washing removes all visible contamination while being gentle on the wood and other materials. Our specialised formula prevents damage from both contamination and the cleaning process.

Why your deck could benefit from a power wash

Decks become slippery over time as algae and bacteria form biofilms on the surface of the timber and grow into the outer fibres. Timber also tends to silver or fade with exposure to UV, making it look grey or washed out. An effective way to deal with both is by pressure washing, as it removes a thin layer of the infected or faded wood fibres along with any algae or mould that is growing on the surface.

Freshly cleaned timber is not slippery and has a much brighter colour to it. We usually recommend to our clients to either stain or paint the cleaned deck or timber structure. Alternatively, the natural look can be kept and maintained with a periodic spray to prevent mould and algae growth.

Are you thinking of selling? You might also be interested in our roof cleaning and exterior cleaning services for a great all round appearance.

How Captain Splash will clean your deck

We prefer to give timber a soak down prior to pressure washing, as this will allow for a slightly lower pressure to be used. Once this is done, we pressure wash with the grain of the wood to prevent splintering or damage. Handling a pressure washing gun with smooth motions ensures that there are no unsightly marks where the trigger has been let go. We aim to get decks and timber looking great with no signs that pressure cleaning has been used.


Our specialised deck washing treatment in Wellington prevents all damage during the cleaning process and reliably removes all contamination. We are proud to offer a high quality service that will help maintain your property and retain its value.