Chemwash Exterior Cleaning

New Zealand's leading house washing and exterior cleaning company.

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House Washing & Exterior Cleaning Specialists

Chemwash has been cleaning kiwi homes and commercial properties since 1981. We are now New Zealand’s largest house washing company, with over 25,000 homes cleaned each year. Using our specialised cleaning techniques, you can trust us to clean any exterior surface safely and effectively. Request your free quote online!

Residential
Residential

Chemwash is New Zealand's leading house washing company. We can also safely clean your roof, gutters, windows, decks, fences, walkways and more.

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Commercial
Commercial

Our commercial building washing services can include anything from shop fronts to multi-storey buildings. We also offer personalised ongoing contracts.

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Free Quote
Free Quote

We offer free quotes with no obligation. You can request a personalised quote from your local Chemwash operator online, all in under 2 minutes!

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100% locally owned and operated
Environmentally friendly practices
Over 25,000 NZ homes cleaned every year
Over 40 Years In Business
Free Fast Quotes With No Obligation

House Washing Specialists

We’ve been New Zealand’s leading house washing experts for over 40 years, bringing innovation right from day one.

Our cleaning techniques are designed to be completely safe for all surfaces, as well as the environment. That means you get amazing results, with no risk of damage to your property. We’re confident our house washing services will remove any dirt, mould, and grime from the exterior of your home, including the walls, windows, soffits, and foundations. Whether your house is weatherboard, brick, plaster, or something else, we can make it look like new again.

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Commercial Building Washing

We are vastly experienced in cleaning commercial properties too. From large multi-storey buildings to small shopfronts, no job is too big or too small. Not only do you get a great clean, we also have all the right things sorted behind the scenes, from legal compliance to comprehensive insurance.

Whether you’d like an ongoing contract for multiple sites, or a simple one-off clean, get in touch for a competitive quote customised to you. If you like, we can even clean outside of business hours so your day-to-day operations are not interrupted.

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Roof Cleaning Services

Protecting your roof from moss, lichen, and fungi will not only make it look better, it will also preserve and maintain the surfaces. We provide a full range of roof cleaning services, including both long-acting roof treatments and instant roof cleans.

We have treatments suitable for all roof types, from coloursteel to clay tile and everything in between.

In addition to roof cleaning , we can also clear out your gutters and spouting to provide a comprehensive service.

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Sustainable Exterior Cleaning

At Chemwash, we care about protecting the environment, which is why we have developed sustainable cleaning practices.

We use low-pressure water systems to ensure that we use less water than traditional high-pressure water blasters, preventing wastage.

Our specially formulated house cleaning detergents are all environmentally friendly and avoid single use plastics, meaning both your home and the environment can both remain clean and healthy.

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Reviews From Our Customers
Reviews From Our Customers

Read real reviews from Chemwash customers all over the country.

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Frequently Asked Questions
Frequently Asked Questions

Find the answers to our most frequently asked questions about exterior cleaning.

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Roof Treatment vs Instant Roof Clean: What’s the Difference?
Roof Treatment vs Instant Roof Clean: What’s the Difference?

What's the best roof cleaning service for your property? Find out more about the different options available!

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What Our Clients Are Saying

Michelle

Rotorua

⭐⭐⭐⭐⭐ - Awesome work done by the team. My house and section looks all brand new and sparkly squeaky clean galore, a job done well by them all. Thank you for bringing my section and home back to life and not looking so glum and dark like it was, you are all amazing.

Who We Have Worked With