By James and Kirsten | Last reviewed: 17 May 2026
The first question we asked when we started seriously looking at gastric sleeve surgery was the boring practical one. How much? Not “is it right for us” or “what does recovery look like”. How much. Because the answer changes everything else.
This post breaks down what we actually paid in 2024, the three routes we looked at, and the costs nobody mentions until you’re already committed. Figures are ours, in pounds, with sources where possible. We’re patients, not financial advisors or clinicians, so anything we share here is descriptive, not prescriptive.
The three routes, briefly
In the UK you have effectively three options for a gastric sleeve. The NHS pays for it if you meet the eligibility criteria. A private clinic in the UK does it for a fee. Or you travel abroad to a country where the same procedure costs less.
We considered all three. Here’s what we found before we get into the numbers.
The NHS route is free at the point of use but has strict eligibility (we’ll get into this) and waits that can be punishing depending on where you live in the UK. We’d heard reports of years.
Private UK clinics will operate on a wider range of patients without the NHS gatekeeping, but you’re paying for that flexibility. Typical advertised prices in 2024 were £12,000 to £18,000 per person. We checked roughly a dozen clinic sites and that range held up.
Going abroad means a much lower price (often half or less) for the procedure itself, plus flights, accommodation, and the practical reality of being further from your aftercare network if something goes wrong. We went this route, eventually.
The reason both of us went private rather than just James going through the NHS is purely financial. Once Kirsten decided she wanted surgery too, paying twice over for UK private wasn’t on. Going abroad together changed the maths entirely.
The NHS route: who actually qualifies
NHS bariatric surgery in the UK follows NICE guidance (clinical guideline CG189) and is paid for when a patient meets all of the following:
- BMI of 40 or above, or BMI of 35 to 39.9 with a serious obesity-related health condition such as type 2 diabetes, sleep apnoea, severe arthritis, or high blood pressure
- Has tried non-surgical weight loss methods without lasting success
- Is fit enough for surgery and general anaesthesia
- Is engaged with a specialist weight management service before referral
- Commits to long-term follow-up and lifestyle change after surgery
The full criteria sit in two places, and both are worth reading directly rather than trusting any summary (ours included): the NHS page on weight loss surgery and NICE clinical guideline CG189. These are kept up to date and are the authoritative sources we’d point anyone toward first.
What the official sources don’t really get into is the wait. The published 18-week referral-to-treatment target doesn’t apply cleanly to bariatric pathways in most areas. People we’ve spoken to in support groups reported waits anywhere from 18 months to four years from first GP conversation to surgery date, with the variation driven by Integrated Care Board capacity and the local Tier 3 specialist weight management service.
The cost to you, if you qualify and you wait it out, is nothing. The NHS covers all of it. That includes the pre-surgery Tier 3 programme, the surgery itself, and post-op follow-up appointments. It’s a genuinely good deal in pure financial terms.
The trade-off is time. If you’re in your forties and watching comorbidities develop, two-to-four years is a real cost, just not one denominated in pounds.
If you want to check what your local pathway looks like, start with your GP. They refer into the local Tier 3 weight management service if you meet the BMI criteria, and that service is the gateway to bariatric assessment. NHS 111 won’t help with this. It has to start at GP level.
Private UK: paying for speed and choice
Going private in the UK means you skip the NHS wait and you choose your surgeon. The trade-off is the bill.
Based on what we saw in 2024, gastric sleeve at a private UK clinic ran roughly £12,000 to £18,000 per patient, all in. That figure typically includes the surgeon’s fee, hospital stay, anaesthetist, pre-op investigations, and a defined aftercare package. Some clinics offer financing through medical loan providers. We weren’t going down that route so we didn’t price the borrowing.
A few things worth knowing about the private UK market.
The surgeon’s experience matters far more than the brand of clinic. The British Obesity & Metabolic Surgery Society (BOMSS) is the UK professional body for bariatric surgeons, and the GMC specialist register is where you verify any UK surgeon’s credentials. Both are public and free to search.
Aftercare packages vary widely. Some clinics include 12 or 24 months of follow-up with dietitian appointments and blood monitoring. Others give you a single post-op check and then it’s your GP, and any future complications are on you. Read the contract carefully. Ask specifically what happens if you need a revision procedure.
Complications often aren’t covered by the package fee. If something goes wrong after surgery and you need a further procedure, the package price usually doesn’t cover that. Some clinics offer optional complication insurance. Worth asking about specifically, in writing, before you sign.
The headline price doesn’t include your supplements, your private blood tests after the aftercare window closes, or anything outside the formal aftercare period. Those are recurring costs you’ll have for the rest of your life.
Going abroad: what we actually paid
We went to Weight Loss Riga in Latvia, in 2024, both of us on the same day. Below are our actual costs to the penny.
Per person:
- Surgery: £4,980
- Light anaesthetic for endoscopy: £140
- Travel insurance covering bariatric procedures abroad: £170.55
- Private room: £0 (normally £100 to £200, included because we both had surgery on the same day)
- Flights: £166.80
Per-person total: £5,457.35
Total for both of us: £10,914.70
For context, the lower end of the private UK range we’d looked at was £12,000. Both of us in Latvia cost less than just one of us would have cost privately in the UK.
The package included all hospital and surgeon fees, pre-op tests and the endoscopy procedure (the anaesthetic was billed separately, hence the £140), post-op medication and in-hospital care, transfers between the airport, hotel, and hospital, and the private hospital room because of the same-day discount. An optional nutritionist consultation was available. We didn’t take it because we already had support at home.
What sealed it for us wasn’t the price by itself. James’s employer has an office in Riga. The office manager there agreed to dig through Latvian search engines and medical directories, on the local-language side of the internet, rather than the marketing-facing English side. The picture that came back was: the surgeon we’d been quoted by was one of the most respected bariatric surgeons in the region locally, not just one of the loudest internationally. That mattered more to us than any English-language testimonials page.
We’d be cautious about telling anyone else to copy this exactly. It worked partly because we had an unusual due diligence advantage through James’s work. Without that kind of local-language insight, choosing a clinic abroad becomes considerably more of a leap of faith.
Costs people forget to budget for
Even with a fixed-price package, there are extras. Some are small. Some really aren’t.
The things we’d build into the budget if we were doing it again:
- Accommodation before and after discharge (we needed a few nights at a nearby hotel in Riga)
- Meals for you and any travel companion across the trip
- Prescription medications you take home (most clinics give you a starter pack only)
- Dressings and wound care supplies for the first couple of weeks
- Bariatric vitamins and protein supplements for the first three months at minimum, and ongoing after that
- Follow-up blood tests in the UK, done privately if your GP won’t run the full bariatric panel
- Airport parking or transfers at the UK end
- Travel insurance that explicitly covers complications from elective surgery abroad (most standard travel policies exclude this)
- A buffer for stay extensions if your discharge is delayed
Our rough rule was to add about 15% to the headline package price for the items above. Some people we’ve spoken to since said 20% would have been more realistic, particularly if your trip ends up extended or your supplements protocol turns out to be more complex than ours.
How to vet a clinic safely, UK or abroad
This is the bit we wish someone had handed us before we started ringing clinics. The principles are the same whether you go UK private or abroad.
Verify the surgeon. In the UK, check the GMC specialist register and confirm they hold the relevant specialty registration. Cross-check with BOMSS membership. Abroad, ask which professional bodies they belong to and verify those independently rather than taking the clinic’s word for it.
Ask for numbers in writing. How many gastric sleeve procedures has this specific surgeon performed in the last 12 months? Across their career? Any clinic that won’t give you these in writing is telling you something.
Ask about complication rates, in writing. Specifically: their leak rate, bleed rate, and rate of conversion to a different procedure intra-operatively. Compare against published bariatric outcomes data. BOMSS publishes UK-wide outcome summaries through the National Bariatric Surgery Registry that give you a benchmark.
Get an itemised quote. The total should break down by surgeon fee, hospital fee, anaesthetist, pre-op investigations, post-op stay, and aftercare. If it’s one round number with no breakdown, that’s a flag.
Know the complication policy. If you need to be re-operated on or readmitted within a defined window, who pays? Get the answer in the contract.
Know the aftercare. How many follow-up appointments are included? Over what period? In person or remote? What blood tests do they run, and at what intervals? What happens after the aftercare window closes? Who manages your nutritional follow-up year five, ten, twenty?
Read patient feedback in two languages. If you’re going abroad, look at reviews in the local language as well as English. Translation tools are good enough now to read the unfiltered version.
Have an emergency plan. If something goes wrong once you’re home, where will you go? A&E will treat you for any acute emergency. For non-emergency bariatric issues your options are more limited if your home country surgeon won’t take complications from an overseas procedure. Worth knowing this in advance, not afterwards.
Was it worth it for us?
Yes. With the caveat that it’s been well over a year since surgery, both of us are in much better health, and the savings against UK private were never the main reason we went abroad. The savings just made it possible to do it together rather than waiting years apart.
The cheapest gastric sleeve is the one you don’t need a second time. Anything that risks complications, poor aftercare, or revision surgery later is a false economy. The price we’d suggest optimising for isn’t the headline number on a clinic website. It’s the long-run cost to your health, your time off work, and your peace of mind across the next ten years.
If you’re at the start of this, our honest suggestion is: have the NHS conversation with your GP first even if you think you’ll go private. Knowing whether you’re NHS-eligible gives you a baseline. From there you can decide what time-and-money trade-off you want to make.
About this content
This blog is written by James and Kirsten, gastric sleeve patients sharing our personal experience. We are not doctors, nurses, dietitians, or any other kind of medical professional. Nothing on this site is medical advice.
Bariatric surgery is a serious medical procedure with real risks. Every patient’s body, history, and recovery is different. What worked or didn’t work for us may not apply to you. Please do not make medical decisions, change your diet, alter your supplements, start or stop a medication, or interpret a symptom based on what you read here.
If you are considering surgery, scheduled for surgery, or living with a sleeve, speak to your bariatric team, GP, or registered dietitian about your individual situation. In the UK, call NHS 111 for urgent non-emergency advice, or 999 / attend A&E for medical emergencies. For mental health support, contact Samaritans on 116 123 (free, 24/7) or text SHOUT to 85258. For eating disorder support, Beat’s helpline is 0808 801 0677.
Product or brand mentions on this page reflect what we personally use. They are not paid endorsements unless explicitly labelled “#ad”, “Gifted”, or “Paid partnership”.
Last reviewed: 17 May 2026
Sources cited in this post:
- NHS, “Weight loss surgery”: https://www.nhs.uk/conditions/weight-loss-surgery/
- NICE clinical guideline CG189, “Obesity: identification, assessment and management”: https://www.nice.org.uk/guidance/cg189
- General Medical Council, specialist register: https://www.gmc-uk.org/registration-and-licensing/the-medical-register
- British Obesity & Metabolic Surgery Society (BOMSS), including the National Bariatric Surgery Registry: https://bomss.org/