Professional Commercial Window Cleaning

Clean windows aren’t just cosmetic, they affect how your building looks, how much natural light your team gets, and how your business is perceived from the street. KM Dass delivers streak-free commercial window cleaning across 10 regions nationwide.

About This Service

Commercial Window Cleaning That Makes an Impression

KM Dass provides commercial window cleaning for offices, retail premises, schools, healthcare facilities, and industrial sites across New Zealand. Whether it’s ground-level shopfront glazing or multi-storey exterior windows, we bring the right equipment, the right technique, and the attention to detail to get the job done properly. Our teams are trained in working at height safely, and we carry full insurance so you can schedule with confidence. We work to your timing, fitting window cleans around business hours, tenants, and seasonal requirements, and we always leave the site clean when we’re done.

What We Cover

Our Commercial Window Cleaning Services

Exterior Window Cleaning

Full clean of all external glazing, frames, and sills, leaving a streak-free, polished finish visible from street level.

Interior Window Cleaning

Internal glass panels, partitions, and window surfaces cleaned to the same high standard as the exterior.

Shopfront & Retail Glazing

Regular cleaning of retail shopfronts and display windows to maintain a sharp, professional appearance for customers.

High-Level & Multi-Storey Windows

Safe access window cleaning for multi-storey buildings using appropriate equipment and height safety procedures.

Glass Partitions & Internal Glazing

Cleaning of internal glass walls, office partitions, and glazed doors — keeping open-plan spaces bright and clear.

Frames, Tracks & Sill Cleaning

Detailed cleaning of window frames, tracks, and sills that collect dust, grime, and moisture over time.

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Why Choose KM Dass

Verified Standards. Proven Performance.

KM Dass holds independent certifications across health and safety, environmental management, quality systems, and security vetting. Our credentials aren’t just badges — they back up every site we clean.

Ownership & Accountability

Proudly Kiwi. Fully Accountable.

100% New Zealand owned and operated with one direct line of accountability from management to cleaner. When you call, you speak with someone who knows your site. No call centres. No runaround.

Community First

We Are Local, Near You.

Our cleaners are local people from your region who take pride in looking after their own community. Real people. Real relationships. Real results. That’s why our clients stay with us.

Management & Oversight

We Don't Just Clean. We Manage.

Digital time tracking on every shift. Monthly physical site inspections. Performance reports you can actually read. We don’t wait for complaints we catch issues before you see them.

Where We Work

Local Teams. Nationwide Coverage.

From Northland to Wellington and into the South Island, KM Dass operates across New Zealand’s regions with local cleaners who know your community. We’re not a national brand dropping strangers into your site we’re your neighbours, showing up every day.

Head office in Hamilton, with teams operations in Auckland, Tauranga, Wellington, New Plymouth, Whangarei, Palmerston North, Napier, Hastings, Nelson and Blenheim.

Frequently asked questions

We’re here to help with all your questions and answers in one place. Can’t find what you’re looking for? Reach out to our support team directly.

How often should commercial windows be cleaned?

For most commercial properties, exterior windows benefit from cleaning every 4–8 weeks depending on location, exposure, and building type. Shopfronts in high-foot-traffic areas often need more frequent attention. We’ll recommend a schedule based on your specific property and the results you want to maintain.

Do you clean windows on multi-storey buildings?

Yes. We have the training and equipment to clean windows safely on multi-storey buildings. All our height work is carried out in accordance with WorkSafe NZ guidelines. We’ll assess your building and confirm the access method best suited to the job before work begins.

Can window cleaning be added to an existing cleaning contract?

Yes. If you already have KM Dass managing your interior cleaning, adding window cleaning to your programme is straightforward. Many clients prefer a single provider for both, it simplifies scheduling, communication, and invoicing.

Get In Touch

Ready for a Cleaner, Healthier Workplace?

Tell us about your site and we’ll put together a cleaning plan built around your needs. No lock-in contracts, no one-size-fits-all packages. Just consistent, professional cleaning from a team that shows up.