How much does Invisalign cost in London? A 2026 guide.

1. The short answer

In London, in 2026, expect to pay between £2,500 and £5,500 for Invisalign at a reputable private practice.

That's a wide range, and it tells you something useful: Invisalign cost depends almost entirely on the complexity of your case, not on the practice you go to. Mild crowding or a small gap will sit at the lower end. A comprehensive treatment correcting bite issues, rotations and significant crowding will sit at the upper end.

Anything below £2,000 should make you suspicious. Either it's a heavily limited treatment plan, the practice is using a cheaper alternative aligner brand and calling it "Invisalign", or it doesn't include essential parts of the treatment — like refinements or retainers — that you'll be billed for later.

2. What affects the price?

Five things, in order of impact:

• Treatment complexity: Invisalign comes in tiers — Express (5-10 trays, very mild cases), Lite (around 14 trays), Moderate, and Comprehensive (often 30-50+ trays for complex cases). The more aligners you need, the higher the cost.
• Attachments and IPR: Most cases need small tooth-coloured attachments bonded to certain teeth — temporary anchors that help the aligners grip and move specific teeth precisely. Some cases also need interproximal reduction (microscopic shaving between teeth to create space). Both add clinical time and cost.
• Number of refinements: Almost everyone needs a round of refinement aligners at the end of treatment to fine-tune the result. Good practices include unlimited refinements in the headline price; others charge per refinement, which adds up.
• Retainers: Without retainers, your teeth will gradually drift back over the years. A good Invisalign price includes your first set of retainers. Replacement retainers down the line usually cost extra.
• Geography and expertise: London prices are typically 10-20% above the UK average. Practices with more Invisalign experience — look for Platinum or Diamond provider status — often charge slightly more, but plan cases more efficiently, which can reduce the total trays needed.

3. What's actually included?

This is where it pays to read the small print. A complete Invisalign price should include:

• All aligners required to complete treatment
• The initial iTero scan and digital treatment plan
• All review appointments
• Tooth-coloured attachments and IPR if needed
• Refinement aligners (the touch-up round at the end)
• Final retainers (Vivera or equivalent)
• Aftercare for at least twelve months

If a quote doesn't mention refinements or retainers, ask. A common pattern is a low headline price with refinements and retainers added on later — and those can add £300-£800 to the total.

4. Is Invisalign worth more than cheaper aligner brands?

There are several clear aligner brands offering treatment at significantly lower prices — Straighten, Spark, various dental-supervised but cheaper-branded systems, and the now-defunct Smile Direct Club.

For genuinely mild cases — minor crowding, small gaps, very straightforward tooth movements — cheaper brands can produce decent results. For anything more involved, the differences matter:

• Treatment planning: Invisalign's ClinCheck software is the most sophisticated 3D treatment planning in the industry. Cheaper brands have less precise planning, which often means more refinement rounds and longer overall treatment times.
• Material science: Invisalign's SmartTrack material is engineered specifically for predictable tooth movement. Generic clear plastics move teeth, but less precisely — particularly for rotations and bite work.
• Clinical oversight: Cheaper brands often involve fewer in-person check-ups, which is fine until something doesn't move the way it was planned. Reputable Invisalign providers see you regularly throughout treatment to catch any issues early.
• Total cost over time: A cheaper aligner that doesn't quite finish the job — requiring follow-up treatment, refinements or remedial work — can end up costing the same as Invisalign would have in the first place. We see this regularly.

That said: if your case is genuinely simple and your dentist agrees, a cheaper aligner brand isn't always the wrong choice. The right answer comes from an honest consultation, not the brand on the box.

5. How to pay for it

Three routes most patients combine:

1. Pay upfront: Most practices offer a small discount (5-10%) for paying in full at the start of treatment.
2. 0% finance: Most reputable practices offer interest-free credit over 6-12 months. A £4,000 treatment becomes £333-£666 per month — no interest, no fees, subject to credit check.
3. Longer-term finance: If you need to spread payments further, 24-60 month plans are available, with interest but at relatively low medical-finance rates. A £4,000 treatment over 36 months at typical rates works out around £130-£150 per month.

Many practices (including ours) let you combine these: a deposit on the day, then 0% over twelve months. That's how most patients ultimately pay for Invisalign — and it's usually more affordable than people expect when they first hear the headline number.

6. The honest answer

Invisalign in London in 2026 isn't cheap, but it isn't arbitrary either. Most of our patients fall into the £2,800 to £4,500 range, with finance options that make the monthly figure considerably more manageable than the headline price suggests.

The biggest piece of advice we'd give: don't shop on price alone. The cheapest Invisalign quote in London is often the most expensive over time, once refinements, retainers and remedial work are added in. Look for a practice that quotes the all-in number upfront, has genuine Invisalign experience, and isn't afraid to tell you honestly if a different treatment would suit you better.

Find out what your case would cost

The only way to know your exact Invisalign cost is to come in for a consultation. We'll scan your teeth, walk you through what's involved, and give you a clear, all-in quote — including finance options — with no obligation to proceed.