Honestly, most people wait way too long. It's one of those things that creeps up on you — one week the windows look fine, then you notice they're a bit dull, and before you know it you can't remember the last time you got them done. We get it. But leaving it too long actually costs you more in the long run, because Christchurch is a genuinely tough environment for glass.

For most homes: every 3 to 6 months

Canterbury throws a lot at your windows. The nor'west winds carry fine dust and pollen from inland. Summer bakes whatever's on the glass. Winter rain leaves water marks that build up over months. For a typical Christchurch home, we'd say every three to six months is the sweet spot — it keeps things looking great year-round, and more importantly it stops mineral deposits building up on the glass itself. Once those get embedded, they're really hard to shift and can cause permanent damage over time.

Near the coast? You'll need it more often

If you're in Sumner, New Brighton, Redcliffs, or anywhere you can smell the sea on a good day, salt spray is landing on your windows constantly — even when the weather's calm. Salt is corrosive, and over time it etches into the glass itself. Those marks don't clean off. We'd say every two to three months for coastal properties, not because we want to sell you more cleans, but because that's genuinely what it takes to stay ahead of the damage.

Trees nearby, or on a busy road?

Christchurch's tree-lined streets are one of the things that makes the city beautiful — but established trees are hard on windows. Pollen, sap, and leaf debris build up fast, especially in spring and autumn. Same deal if you're on a main road: traffic film is subtle but it accumulates quickly and dulls your glass more than most people realise. Either way, you'll probably find yourself needing a clean more often than a property in a quiet, sheltered street.

Businesses: first impressions matter

People make snap judgements about a business before they've even walked through the door. Dirty windows on a shopfront read as neglect — even if everything inside is immaculate. For most commercial properties we'd recommend monthly or every two months, especially if you're on a busy street like in the CBD, Riccarton, or Sydenham where foot traffic is high and people are looking right at your frontage.

The short version

Every six months as a bare minimum for homes, every three months if you want them looking their best. For coastal or tree-heavy properties, more frequent is genuinely worth it. And if you're not sure what your property actually needs, just give us a call — we're happy to take a look and give you an honest recommendation, no charge, no pressure.

Get on a Regular Schedule

Canterbury Clear looks after homes and businesses all across Christchurch. Get a free quote and we'll sort out a schedule that works for you.

If you've ever cleaned your own windows — really put the effort in — and then watched streaks appear as the glass dried, you'll know how frustrating that is. You did everything right, and it still looks average. That's not a technique problem. It's a water problem. And once you understand that, the whole thing makes a lot more sense.

It's not the dirt — it's what's in the water

Tap water isn't just water. It contains dissolved minerals — mainly calcium and magnesium — that you can't see while the water's wet. But the moment it starts to evaporate, those minerals get left behind on the glass as white spots and streaks. It doesn't matter how much you wipe; you're essentially painting the glass with mineral residue every time you rinse. Even Christchurch's relatively soft tap water has enough in it to leave marks on a clean pane.

What pure water actually is

Pure water has had all those dissolved minerals stripped out through a multi-stage filtration process — typically reverse osmosis followed by deionisation. What you're left with is water that's as close to H₂O as you can practically get. When that dries on glass, there's nothing left behind. No spots, no streaks, nothing. Just clear glass.

How we use it

We use water-fed poles — telescopic poles with a soft brush head at the end that pump purified water through while you scrub. The brush agitates the dirt off the glass, the pure water rinses it clean, and then you just leave it to dry naturally. Because there's nothing in the water, the glass dries completely clear. No finishing with a squeegee or cloth needed.

A big practical advantage is reach. Our poles extend high enough to safely clean up to third-storey windows from the ground — no ladders needed. That's better for your property (no ladder damage to gutters or paintwork) and safer for everyone involved.

No chemicals — genuinely

Because the water itself is doing the work, there are no detergents or cleaning chemicals involved at all. That means it's completely safe around kids, pets, gardens, and painted surfaces. Nothing goes down the drain except water and the dirt we've lifted off your windows.

Does it actually last longer?

This is the one that surprises people most. Traditional cleaning products leave a thin residue on the glass — even when the window looks clean, that residue is there, and it attracts dust. Pure water leaves nothing, so there's nothing for grime to cling to. Most of our customers find their windows stay cleaner noticeably longer after a pure water clean compared to what they were used to before. That's why we use it on every job — it genuinely delivers a better result.

Want to See the Difference?

Canterbury Clear uses pure water technology on every job across Christchurch. Get your free quote and find out what a proper clean looks like.

There's a specific kind of frustration that comes from cleaning your windows, standing back, and realising those brown insect marks are still there. You wipe harder. They smear. You try a different cloth. Still there. And at some point you start to wonder whether they've actually damaged the glass. In most cases they haven't — but they do need more than a standard clean to shift, and knowing why makes all the difference.

Why insect marks are so stubborn

When an insect hits warm glass and bakes in the sun, it's not just sitting on the surface — the proteins and oils bond to the glass at a molecular level. A standard window cleaner or a damp cloth doesn't have the chemistry or the dwell time to break those bonds down. You're essentially just pushing it around. What actually works is a cleaner that can penetrate the residue, combined with gentle agitation and — often — multiple passes. The second pass shifts what the first one loosened. It takes longer, but it's the only way to do it properly.

Dog noses and paw prints

Dog nose and paw prints are a grease problem — the oils from your dog's skin transfer to the glass every time they press against it, and grease needs an emulsifier to cut through it. Household glass cleaner is mostly water-based and doesn't emulsify well. A proper degreasing step before the main clean is what shifts these reliably. If you've got a dog who loves the front window, you'll probably need more frequent cleans — every two to three months rather than six — to stay ahead of the buildup.

Hard water spots

Hard water stains are mineral deposits — calcium and magnesium left behind when water evaporates. Christchurch water is relatively soft compared to other parts of New Zealand, but you'll still get spots over time, especially from sprinkler systems hitting windows, or coastal properties where salt combines with water. The mineral deposits are alkaline, so you need a mildly acidic solution to dissolve them — vinegar works on light buildup, but commercial-grade products work a lot better on anything that's been sitting for months. The longer they're left, the deeper they can etch.

When it actually can't be fixed

This is the honest part. If hard water deposits have been sitting on glass long enough — typically years, not months — they can etch into the surface itself rather than just sitting on top of it. At that point, no amount of cleaning will remove them because the glass is physically damaged. The same goes for scratches from grit being rubbed across the surface during a bad DIY clean. If you hold a light up to the glass at an angle and the marks are still visible when the surface is wet, that's usually a sign you're looking at etching rather than surface contamination.

We'll always tell you honestly which situation you're in. If it's surface contamination, we'll keep going until it's gone — we've had jobs where it took three passes to fully shift stubborn insect marks, and we don't stop until they're clear. If it's etching, we'll tell you that too, so you're not paying for a result that isn't achievable.

The short version

Insect marks, dog prints, and hard water spots are all removable with the right approach — they just need more than a standard wipe-down. The earlier you address them, the easier they are to shift. Leave them for years and you risk permanent etching. If you're not sure what you're looking at, get us out to take a look — we'll give you a straight answer before you commit to anything.

Got Stubborn Marks on Your Windows?

Canterbury Clear handles the tough stuff — insect marks, water stains, you name it. Get a free quote.

If you're moving out and wondering whether you need to get the windows professionally cleaned — the answer is almost always yes, and the reason is simple: it's one of the easiest things for a landlord or property manager to flag on a final inspection, and one of the hardest to argue against if they do. A smeared window is obvious. A professional clean with an invoice is hard to dispute.

Are windows actually part of your bond conditions?

In most Christchurch rental agreements, yes. The standard requirement is that windows are returned in the same condition as noted on your ingoing inspection report. If they were clean at the start of your tenancy, they need to be clean at the end. Most ingoing reports describe windows as "clean" — which means you're expected to leave them that way. The burden of proof is on you to show they were cleaned properly, which is why a professional service with a receipt is worth far more than doing it yourself and hoping for the best.

Inside versus outside — where landlords actually look

Most tenants clean the insides and assume that's enough. Landlords know this, which is why the outside is often the first place they check. Exterior windows accumulate road grime, pollen, and weather marks that you genuinely can't reach properly from inside — especially on second-floor windows. Get both done. The difference in price is small and the difference in outcome at inspection can be significant.

Tracks and sills — where disputes actually happen

Window tracks and sills are where most bond disputes about windows actually originate. Grime builds up in tracks over years and is easy to overlook when you're rushing a vacate clean. A proper end-of-tenancy window clean should include tracks and sills — if whoever you book doesn't mention this, ask explicitly. We do it as standard because we know it's what gets checked.

How late can you book?

We can usually fit end-of-tenancy cleans in within a day or two of your request — sometimes same day if you're in the Christchurch area and the timing works. The earlier you book the better, but we understand that vacating a rental is chaotic and last-minute requests do happen. Give us a call and we'll do our best to make it work.

If there's a dispute

Keep your invoice. If a landlord tries to claim the windows weren't cleaned to a professional standard, a dated invoice from a window cleaning company is your best defence. We can also provide a simple confirmation of the work completed if you need it for a Tenancy Tribunal matter — just ask when you book.

Moving Out? Book Before Your Inspection

Canterbury Clear handles end-of-tenancy window cleans across Christchurch. Quick turnaround, inside and out, tracks and sills included.

The first thing most people do after deciding to get their windows cleaned is search for a price — and the first thing they notice is that no one gives a straight answer. That's not people being evasive. It's that the price genuinely depends on several things that vary a lot between houses. Here's how it actually works.

What the price is actually based on

The biggest factor is the number of windows, not the size of the house. A large, open-plan home with eight big windows can be cheaper to clean than a villa with twenty small sash windows. After that, it comes down to storeys — single-storey homes are quicker and simpler than double-storey, where we need specialist equipment to reach safely. Whether you want interior cleaning alongside exterior also makes a significant difference; interior adds roughly the same time again, because each pane has to be done from inside as well.

Condition matters too. A house that gets cleaned every few months takes less time than one that hasn't been touched in three years and has hard water buildup or insect residue baked on. Some jobs take one pass; some take three. We don't charge extra for this, but it's worth knowing that the first clean is often longer and more labour-intensive than subsequent ones.

What you can expect to pay

For a standard single-storey Christchurch home with exterior-only cleaning, most jobs fall between $100 and $180. Add interior cleaning and that typically doubles — so $200 to $360 for a full inside-and-out on a three or four-bedroom home. Double-storey properties sit higher, usually starting around $160 for exterior only and going up from there depending on how many windows are at height.

Small townhouses and units are usually at the lower end — $80 to $120 exterior only is common. Larger homes, homes with a lot of windows, or properties that haven't been cleaned in years can sit above these ranges. The only way to get an accurate number is to quote the specific property, which we do for free.

Why some prices look very cheap

You'll occasionally see quotes that seem significantly below the ranges above. Sometimes that's just a smaller job. But often it means a few things: no public liability insurance, no equipment beyond a bucket and squeegee, and a finish that doesn't include frames, sills, or proper residue removal. That's not necessarily a disaster for ground-floor windows in good condition, but it's not the same service — and if something gets broken or damaged, you'll be glad you chose someone insured.

Regular customers pay less per visit

If you book on a regular schedule — every three months, every six months — the time per visit drops because the windows never get very dirty. We pass that saving on. Regular customers consistently pay less per clean than one-off bookings, and get priority scheduling. For most Christchurch homeowners, a twice-yearly schedule is the sweet spot for both result quality and cost.

How to get an accurate price for your home

Send us the address and tell us what you're after — exterior only, both inside and out, how many storeys — and we'll come back with a quote the same day. No obligation, no sales call, just a price.

Get a Free Quote for Your Home

Tell us your address and what you need — we'll come back with a price the same day.

This is one of the most common questions we get before a booking, and it's worth answering properly because the answer genuinely depends on what's being cleaned. The short version: for exterior-only cleaning, you usually don't need to be home. For interior cleaning, you do. Here's everything you need to know.

Exterior cleaning — usually no

When we're cleaning the outside of your windows, we're working entirely from outside the property. As long as we can access the exterior of the house — including any gates or fenced areas — you don't need to be there. Many of our regular customers just leave the side gate unlocked on the day and we get on with it while they're at work.

The main things to sort out beforehand: gate access, any dogs in the yard, and whether there's a hose tap we can use if needed. We'll confirm all of this when we book the job so there are no surprises on the day.

Interior cleaning — yes, you need to be home

If you've booked interior and exterior cleaning, someone needs to be in the house. We're going from room to room, moving things near windowsills if needed, and working inside your home — so it's important that you or another adult is there throughout. Most clients are home for the whole clean; some book it on a work-from-home day and just carry on in another room while we work through the house.

It's worth doing a quick walk-around before we start, particularly if there are fragile items on windowsills or anything you'd like us to avoid. Just a two-minute chat at the start makes everything run more smoothly.

What to tell us before we arrive

Whether you're home or not, a few things make a big difference to how smoothly the job goes. Let us know about gate codes or lockboxes, any dogs or animals that will be in the garden, anything fragile that sits near windows at ground level, and whether there are any access issues on the property we should know about. We'll ask about these when booking, but if anything changes before the day just send us a message.

Splitting the job if timing is tight

If you want interior cleaning but can't be home on the day we have available, we can split the job — exterior one visit, interior when the timing works for you. It's a bit less efficient but it means you're not waiting weeks for a slot where you're free all day. Just let us know when you book and we'll work something out.

On the day

We'll send a message when we're on our way so you're not just waiting around. The clean itself is quiet — we're not drilling or making significant noise — so if you are home you can get on with your day normally. Most people barely notice we're there until we're done.

Ready to Book?

Get in touch and we'll sort out all the details — including access and timing — before the day.

If you've never had a professional window cleaner come to your home before, it can feel a bit uncertain — who's arriving, what exactly do they do, how long will it take, do you need to do anything? This is a full walkthrough of what actually happens from the moment you book to the moment we leave.

Before we arrive

You'll get a message from us the evening before or the morning of your clean confirming the time window — usually a two-hour arrival window, and we'll text again when we're on our way. There's very little you need to do to prepare. If you have things sitting on windowsills inside, it helps to move fragile items, but we can move most things ourselves. Outside, the main one is making sure any gates are unlocked and dogs are secured if they're normally free in the yard.

When we arrive

We'll introduce ourselves, do a quick walk around the property to identify the scope of the job, and flag anything unusual — a window that's particularly hard to reach, a frame that's damaged, or any marks we think are worth pointing out before we start so you know what we're working with. This usually takes five minutes and means there are no surprises at the end.

The clean itself

For exterior cleaning, we work top to bottom — starting with the highest windows and working down so any runoff doesn't contaminate windows we've already cleaned. We use a water-fed pole system with purified water for most exterior work, which leaves glass spotless with no chemical residue. Frames and sills are included as standard; they collect a lot of grime and leaving them dirty would undo the result on the glass.

For interior cleaning, we use a squeegee and professional-grade microfibre cloths and work through each room systematically. We'll ask you which rooms you want done and in what order if there's a preference. Windows with blinds or curtains — we'll move them carefully and put them back exactly as they were.

How long it takes depends on the house. A typical three-bedroom single-storey home with exterior cleaning takes around an hour to ninety minutes. Add interior and you're looking at two and a half to three hours for a full clean. Double-storey homes or properties with a large number of windows will take longer. We'll give you a time estimate when we quote.

Anything we couldn't fully remove

Occasionally there are marks we can't fully shift — deep hard water etching, old paint overspray, or scratches in the glass itself. If we find something like this, we'll show you before we leave and explain what it is. We'd rather be upfront about the limits of what's achievable than have you notice it yourself after we've gone.

When we're done

We do a final check on our way out — a quick look at everything we've done to make sure nothing was missed. If you're home, we'll give you a chance to have a look before we leave. Payment is usually sorted at the end of the job by card or bank transfer, though some regular clients pay by invoice. Any questions or things you want to check on, just ask — we're not in a rush to get away.

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Canterbury Clear services homes and businesses across Christchurch. Free quotes, no obligation.

This is the real question most people are asking when they look up window cleaning prices. Not "how much" but "is it actually worth what it costs?" The honest answer: it depends on your situation. But for most Christchurch homeowners, yes — and here's how to think about why.

What you're actually paying for

When you pay for a professional window clean, you're not just paying for someone to wipe glass. You're paying for the right equipment — water-fed poles, purified water systems, and professional squeegees that produce a finish consumer products can't match. You're paying for speed; what takes a professional an hour would take most homeowners a full afternoon. And you're paying to stay off a ladder, which matters a lot more once you've got second-storey windows or a steep roof pitch.

The reality of doing it yourself

Most people who try to clean their own windows properly end up frustrated. The cheap squeegees from the hardware store leave streaks. Reaching the top of a double-storey window from a ladder is genuinely risky — ladder falls are one of the leading causes of serious injury around the home, and it's rarely as simple as it looks. Even on ground-floor windows, getting a streak-free finish on a sunny Christchurch day is harder than it seems because the glass dries too fast.

If you're cleaning a single-storey home with five windows, maybe a Saturday afternoon works fine. But if you've got twenty windows across two floors, the honest maths usually comes out in favour of paying someone who can do it in half the time and to a better standard.

When it's clearly worth it

There are situations where the value of professional cleaning is obvious. Double-storey windows — the safety factor alone is worth it. Before selling or renting your property — dirty windows are one of the first things buyers and tenants notice, and a professional clean costs a fraction of what it's worth to a good first impression. After building or renovation work — construction dust and paint splatter need more than a cloth and some spray. And if you've left it for more than a year, the buildup of pollen, road grime, and Christchurch's nor'west dust makes it a multi-hour job that's much faster in professional hands.

When you might not need it

There are homeowners who genuinely don't need to hire someone. If you enjoy cleaning and you're good at it, if your home is single-storey with easy access, and if you clean regularly so the build-up never gets severe — you might be completely fine doing it yourself. We'd never try to convince someone who's happy with their own results that they need to pay for the same outcome.

The frequency factor

One thing that changes the maths significantly is how often you clean. A twice-yearly professional clean — spring and autumn — keeps windows in good shape year-round and costs less per visit than infrequent one-off cleans, because there's less to remove each time. Over a year the total cost is reasonable when you factor in the time you're not spending on it yourself.

The straight answer

For most Christchurch homeowners — especially those with double-storey homes, large window counts, or limited time — professional cleaning is worth it. The result is better, it's faster, and the safety element alone removes a real risk from the equation. If you're on the fence, the best thing to do is get a quote and see whether the number changes your mind. Most people who try it once keep coming back.

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