Building Washing

The presentation of your building reflects on your business.

We have a passion for exterior washing and obsessive service – we want you to be have presentation you can be proud of, and customer service that makes you smile.

Grime Off Now provides building washing and exterior cleaning services throughout Waikato and Bay of Plenty. We have a range of techniques available for cleaning buildings, we can choose the right approach for each job. Grime Off Now works with large clients throughout Waikato and the Bay of Plenty including Fonterra, Ministry of Justice, New World, Gallagher Group, Genesis, Mystery Creek Events Centre, Foster Maintain and Colliers International.

The Grime Off Now building washing process services two main functions: Firstly to meet the requirements and specifications for the warranty and maintenance of numerous cladding, paint and membrane systems; and secondly to ensure your building is presented well so that it reflects positively on your business and culture.



Do you have grass growing in your gutters? Or blocked and overflowing gutters? We remove organic debris from gutters and then check to see that the storm water system is flowing correctly and advise on this. This helps to prevent ponding where water sitting in the system can increase likeliness of corrosion. Improper maintenance here can also invalidate both manufacture and producer warranties.


According to the New Zealand Steel Specifiers and Builders Guide,June 2010, pg.7 “Corrosive dust and particles can be released through roof vents and discharged on to the roof surface. The immediate area of the roof adjacent to the vent is then at increased risk of corrosion.” One of their protocols to help prevent this is to regularly wash the area to remove these contaminants.

Unwashed Areas

Areas where natural rainfall is insufficient to clean contaminants such as windblown salt and dust off a given surface including roofs are generally considered an ‘unwashed area.’ Typically these areas include the undersides of gutters, canopies roof vents or sheltered areas , canopies, veranda, eaves, etc. When these particles accumulate on painted surfaces and become moist corrosion will take place. Many windblown contaminants absorb moisture and when exposed to high humidity their presence on steel also accelerates corrosion. A maintenance washing programme should be in place to meet these warranty requirements Referenced from The New Zealand Steel Specifiers and Builders Guide, June 2010, Pg.10


Grime Off also offers the Hyrdo Pure cleaning system. This uses ultra-filtered pure water to easily remove the dust and dirt found on glazing and window frames. The ultra-pure water leaves a spot-free finish without needing a squeegee. This powerful system enables efficient cleaning of large scale commercial buildings and has zero impact on the environment.

Experience the Grime Off difference

Before After
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For general enquiries please contact one of our locations directly

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Contact Details
Where are you based?

Wellington Territories

Map of Wellington franchise territories
Wellington City
Wellington Central

Auckland Territories

West Auckland
Lower West Auckland
Northern Auckland
Upper Waikato