In-office whitening runs about $400 to $900 in Canada, averaging around $650. Custom take-home trays are $200 to $500, averaging about $350 — and the trays are reusable, which changes the maths entirely.
Whitening is cosmetic, so it does not appear in the ODA Suggested Fee Guide, which covers clinical treatment. The figures above are published Canadian market ranges, and cosmetic pricing varies more between practices than restorative pricing does.
The cost of teeth whitening at the dentist splits in two. One route is a single supervised appointment using a high-concentration gel with the gums isolated. The other is a set of custom trays made from a scan of your teeth, with gel you use at home over one to two weeks. Both work, at different speeds and for different money.
Here is what whitening involves at our Windsor office, including what we check before agreeing to do it.
In-Office, Take-Home, or the Drugstore
| In-office whitening | Custom take-home trays | Drugstore strips or kits | |
|---|---|---|---|
| Typical Canadian cost | $400-$900, average ~$650 | $200-$500, average ~$350 | $30-$100 |
| Time to result | One appointment, 60-90 minutes | 1-2 weeks of nightly or daily wear | 2-4 weeks, if it works |
| Gel strength | Highest, professionally isolated | Moderate, safe for unsupervised use | Lowest |
| Fits your teeth | Not applicable | Moulded to your arch, gel stays put | One-size strip, misses the edges |
| Top-ups later | Full price again | Cost of a gel syringe only | Buy another box |
| Gum protection | Barrier placed by the clinician | Trays trimmed to the gum line | None, gel leaks |
| Supervised | Yes | Assessed first, then you run it | No |
The value argument for trays is the one most people miss. The expensive part is making the trays, and you keep those. Two years later when the colour has drifted, a top-up costs a syringe of gel rather than another course of treatment. Over a decade, trays are the cheaper way to stay white by a wide margin.
Drugstore strips are not a scam. They contain a real whitening agent at low concentration and on mild surface staining they do something. They cost less because they do less, they cannot reach the curve between teeth, and the gel goes where it likes because nothing holds it against the enamel. If your teeth are only slightly dull they are a reasonable first try, and we will say so before taking your money.
What Drives Professional Whitening Cost
- Peroxide concentration and how long it stays on the tooth.
- Whether the appointment includes gum isolation and a clinician sitting with you, which is chair time.
- Whether custom trays and a scan are part of the package or an add-on.
- Number of applications — some in-office protocols run three cycles in one visit, some one.
- Whether follow-up gel and a review appointment are included.
- Laser or light activation. The evidence that a light meaningfully improves on the gel alone is weak, and laser whitening cost is typically higher for a result largely down to the peroxide. If someone charges a premium for the lamp, ask what it adds.
Insurance Does Not Pay for This
Whitening is elective and cosmetic, so no private dental plan covers it. Neither does the Canadian Dental Care Plan, which excludes cosmetic treatment outright at every income tier — our CDCP guide lists what is and is not on the plan.
What insurance often does cover is the cleaning that should come first, which is where the honest money-saving advice starts. See our fees and payment page for how cosmetic estimates work here, and direct billing for the clinical part of the visit.
Three Ways People Waste the Money
This is the part of the post that argues against our own revenue, and it is the useful part.
Whitening over tartar
Calculus and built-up stain do not bleach. Gel cannot penetrate them, so you whiten the enamel that was already visible while the rest stays as it was. A four-unit scaling and cleaning appointment is $261 under the 2026 ODA guide, and where the problem is coffee, tea, red wine or tobacco staining rather than the underlying shade, that cleaning alone gets most people most of the way. Some look in the mirror afterwards and cancel the whitening. That is a good outcome. Our post on how dentists remove tartar explains why brushing cannot shift it.
Whitening teeth that will not respond
Peroxide lifts organic staining inside enamel and dentine. It does very little for grey teeth, tetracycline banding from childhood antibiotics, or white fluorosis spots — and on tetracycline cases it can make the banding more obvious by lightening everything around it. A single dark tooth that has had root canal treatment is a different problem, fixed by internal bleaching of that one tooth rather than a tray across all of them.
Someone should tell you what kind of discolouration you have before you pay for anything. If yours will not respond, bonding or veneers are the honest alternatives — our post on what veneers cost in Ontario sets out that budget.
Whitening after the restorations go in
Crowns, veneers, bonding and white fillings do not whiten. Peroxide does nothing to ceramic or composite. Whiten after a crown or a front filling is placed and the restoration stays the old shade, which now looks wrong — and matching it means replacing it.
Whiten first, wait two weeks for the shade to settle, then have the restoration made to the new colour. Get that order backwards on a smile makeover and you pay for the same front teeth twice. Any competent cosmetic dentistry plan starts with this conversation.
Sensitivity
Most people get some. It is a sharp, short zing rather than a constant ache, it comes from peroxide passing through the enamel to the nerve, and it settles within a day or two of finishing. It does not mean damage.
It is managed with a potassium nitrate and fluoride desensitising gel before and after, shorter wear times rather than pushing through, and spacing sessions out. If your teeth are already sensitive, take-home trays at lower concentration over a longer period are kinder than one high-strength session. Untreated decay or an exposed root hurts considerably more, which is another reason for the examination first.
How Long It Lasts
Six months to three years, and the range is that wide because it is mostly about habits. Coffee, tea, red wine, dark cola, curry and tobacco pull the shade back fastest. Rinsing with water after them helps more than people expect.
Teeth also darken with age as enamel thins and the yellower dentine shows through, so whitening is maintenance rather than a permanent change. With trays, top up when you notice the drift rather than waiting until it has gone all the way back.
One thing worth knowing before orthodontic treatment: whiten after the teeth are straight, not before. Overlapping teeth shade unevenly, and moving them afterwards exposes surfaces that were never bleached.
Frequently Asked Questions
How much does it cost to whiten teeth professionally in Canada?
In-office treatment is typically $400 to $900, averaging near $650, and custom take-home trays are $200 to $500, averaging around $350. Cosmetic work is not in the ODA guide, so these are market ranges rather than published fees.
Is professional whitening better than strips?
It is stronger, supervised, and with custom trays the gel sits where it is meant to. Strips are cheaper and work on mild staining. The bigger difference is that someone assesses whether your discolouration will respond before you spend anything.
Does whitening damage enamel?
Whitening at the concentrations used in dentistry does not soften or erode enamel when used as directed. Overuse causes sensitivity and gum irritation, which is temporary. The real risk is unsupervised high-strength gel bought online.
Will whitening work on crowns or veneers?
No. Ceramic and composite do not change colour. This is why you whiten first and match new restorations to the result afterwards.
Why is one of my teeth darker than the others?
Usually because the nerve inside it has died, often years after a knock. Whitening from the outside will not fix that. Internal bleaching of that single tooth, or a veneer, is the route — and the tooth needs assessing first.
How white will my teeth actually get?
Several shades for most people, but there is a ceiling set by your natural dentine colour. Anyone promising a specific shade before looking in your mouth is guessing.
Get Assessed Before You Pay for Anything
Come in for a look first. We will tell you what kind of staining you have, whether a cleaning alone would do it, whether whitening will work on your teeth, and what order to do things in if restorations are planned. If whitening will not give you what you want, we would rather say so than sell it. See our full list of services.
Book online or ask us first. More cost answers are on the blog.
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