Professional Deck & Fence Cleaning and Staining Services

Many outdoor hardwood surfaces such as decks and fences are constantly exposed to all types of weather conditions. While they are durable, dirt, grime, mould, dead wood fibres, and other contaminants will accumulate over time which will affect the look of your deck and fences over time.

Deck and Fence Cleaning Process

We utilize the latest professional cleaning products to clean up your decks and fences. All of our deck and fence cleaning services will be carried out by our designated Deck and Fence Pro specialists. They are trained and experienced to ensure that your decks are professionally and efficiently cleaned without damaging the timber and restoring your timber decks to their former glory!


Once our cleaning experts remove all of the dirt and unwanted organic material and the cleaning products are fully washed off the deck, it is ready for the final step of cleaning and restoration by restaining the timber deck with the proper wood treatment.

Deck Restaining

Our deck stains and paint products are made to the highest specifications. Unlike many commercially available DIY wood stain products, ours are made from a linseed oil base for a superior finish and better protection. They’re made specially for us, manufactured here in New Zealand and designed for Aotearoa’s unique climate and weather conditions. Our oil and water-based stains use the latest technology that is able to be maintained, unlike some well-marketed DIY products available that are almost impossible to remove when they degrade.

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The Deck & Fence Cleaning and Staining Experts

ProGroup has extensive experience providing deck and fence cleaning and restaining services all across New Zealand. All our specialists are professionally trained and certified so you can trust that your surfaces will be safely and effectively cleaned and restored to their original beauty. Deck cleaning is a specialised process that requires skill and if done wrong, it could damage the timber. Be rest assured that your deck and fence cleaning are the safest hands in the industry. Give us a call today!

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  • Can you apply oil stain to a deck that has been previously painted (or stained with waterbased stain)?

    In order to answer this it is important to understand the differences between paint, waterbased stain, and oil stain. Paint and waterbased stains are effectively the same thing - topical coatings that seal the surface of the timber. Waterbased stains are just thinned down acrylic paint that allow the grain of the timber to show through but they block up the pores of the timber the same as paint. Oil stain is a penetrating product that needs to soak into the surface of the timber to provide nourishment.

    It is not possible to apply oil stain over paint (or water based stain) unless all of the exiting coating is fully removed. This is because the oil will not be able to penetrate through the coating. The only way to remove the paint or waterbased stain is to use paint stripper (or mechanical sanding if the deck allows that). Both of these processes are time consuming and expensive, and may not remove all of the existing coating.

    The result of this is that the new oil stain may be patchy, and may not last as long as on bare timber. Our recommendation is usually to recoat the deck with the same product that was previously applied. In the case of water based stain, this can also result in a patchy finish as the fully stripped timber will soak up more product than those areas that still have some residual product on it.

    We can only do our best in this situation. The only other option is to replace the deck boards with new.

  • Should I stain or paint my new deck?

    We strongly recommend avoiding painting your deck. Decks are subjected to very harsh conditions, from intense sun in the summer, to long period of standing water in the winter. And they are constantly being abraded by foot traffic, furniture being dragged across the surface, etc. There are no paints that will withstand this treatment, and painted decks deteriorate very quickly.

    Another consideration is that once painted, you cannot change to stain down the track. There is no practical way to remove the paint well enough to allow an oil stain to penetrate the timber. When we come across painted decks for restoration, our only option is to clean and repaint, and advise the homeowner that this process will need to be repeated quite regularly.

    You must however protect your deck from the elements, and the best product for that is a good quality linseed oil based stain that has UV protection in it. If you do not do this the timber will turn grey within 6 months, and mould will start to take hold.


  • Can I stain or paint my new deck straight away?

    New outdoor timber generally has a high moisture content, so it is recommend not to coat it with stain or paint for a few months to allow it to dry out. If it is coated too early the product may not penetrate or bond very well. Typically we say leave it 3-6 months.

  • Should I use oil or water-based deck stains?

    Water based deck stain is effectively very thin acrylic paint, so thin you can see though it. The problem with it is that it clogs up the pores of the timber making it extremely difficult to maintain because the old residue is virtually impossible to remove. We use superior quality oil based wood stain that nourishes the timber and can be recoated time and time again.

  • Do you use a waterblaster to pre-clean the timber?

    We use a specialist eco-friendly solution to loosen dirt, contaminants, and dead timber cells followed by a controlled pressure wash to sluice this residue away. Our team are very skilled at this process.

    Over the years we have seen many DIY deck cleans, where the homeowner has used a waterblaster on its own without any specialist cleaning solution, and with poor technique. The result can vary from stop/start marks in the timber that cannot be removed, to chunks of timber being blasted away.

    There are products available that claim you simply apply them and then brush the deck clean. We know that there is a lot of elbow grease required, and many of our customers come to use having given up on these products. Like most things in life, there is no easy way to get a professional result.

  • How do I maintain my restored deck, fence, door, or furniture?

    A wood stain generally requires a top up coat every 12-18 months to replenish the nourishing oils and UV blockers. We can arrange an on-going maintenance schedule with you following the restoration process that will include a light clean followed by a recoat of the wood stain. In between scheduled maintenance, a mild detergent is all that is needed to remove any bird droppings or spills, and a spray with a moss and lichen inhibitor during winter can also help. It is important to not use harsh deck cleaning agents that may remove the oils contained in the stain. Painted surfaces generally last longer than stained ones but are more susceptible to abrasion.

Book a quote now

For any enquiries regarding your outdoor living spaces, or to request a quote, please enter your details and your local Deck&FencePro franchisee will be in touch to arrange an appointment as soon as possible.

If you prefer not to give a full address at this stage feel free to book a quote by phone at the free phone number below.

0508 422 532

Note that The ProGroup has strict operational processes in place with regards to Covid 19 and the relevant alert levels.

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