Bariatric Surgery

London/Bariatric Surgery

Home Counties/Bariatric Surgery

  • Gastric Balloon (non-surgical)

  • Gastric Band Surgery

  • Gastric Bypass Surgery

  • Gastric Sleeve Surgery

  • Bariatric Rescue

Clinic Locations

Conditions treated/Procedures


The London Clinic
20 Devonshire Place


As weight loss surgery specialists we treat all our patients with care, concern and compassion.

Streamline Surgical fully understands what people go through when they are overweight, the difficult decision having bariatric surgery can be, and the post-operative care needed for every patient. Bariatric surgery isn’t simply about losing weight. The transformation our patients go through in terms of their self-esteem and health, as well as weight loss is what makes our job so fulfilling.

Established by the ‘Fat Doctors’ Shaw Somers and Guy Slater, Streamline Surgical is one of the UK’s largest obesity surgery units. The surgeons and team have unrivalled expertise and experience gained from over one thousand bariatric operations. Streamline Surgical is able to cater for even the largest and most challenging of cases, setting the company aside from similar centres in the UK – no case is too large!

We are based at several locations in the South of England, performing both NHS and private weight loss surgeries. Our specialist clinical team will support you every step of the way. On hand to help you are dietitians and of course our surgeons, so that whatever your goal may be our team have the means to help you achieve the results you want and to become the person you want to be.

From the first time that you see us you will be in the hands of our nationally recognised surgeons, all of whom are members of the British Obesity and Metabolic Surgery Society (BOMSS) and the International Federation of the Surgery of Obesity and Metabolic Disorders (IFSO). Our surgeons operate and train other surgeons, both internationally and in three of the major NHS Specialist centres. With enviable UK and international reputations we offer the highest levels of expertise and care in all of our centres.

Our post-operative care is second-to-none reflected in the fact we achieve above average results in weight loss with our Gastric Band patients. We also provide post-operative care for patients having surgery elsewhere.

Our principle aim is to treat all patients with care, concern and compassion to facilitate their ultimate goal of continuous weight loss and help them to become the people they want to be!


GPs: Upload your referral here
which will be sent directly to the consultant or his secretary.


Melanie is 26 from Hayes, Middlesex, she was over 21 stone when she decided to have a gastric band fitted with Streamline Surgical, she has since lost eight stone.

“I turned to surgery after years of being unhappy with my body. I had always been big as a child but since I got diagnosed with ME at 21 the weight started to pile on. I was seriously unhappy and decided enough was enough; I knew I didn’t want to be overweight anymore.

“I came across Streamline Surgical whilst doing research on the Internet and found Shaw Somers and the Clementine clinic. I met both of the Streamline Surgical surgeons and they were both terrific. I found the team at Streamline Surgical really helpful and supportive and I’m so glad I took the step to change my life.”

“Before the surgery trying to be a normal twenty something was really difficult. I was young and my weight was starting to interfere with my personal life. I didn’t have a boyfriend and my friends didn’t have the same problems I did.

“I would go out with my friends and feel huge, I hated it. I felt so aware of my weight and people looking at me. I’d get strangers making negative comments as I walked past and my self-esteem was at an all time low. I felt completely isolated because of my weight, I had no boyfriend and couldn’t socialise with my friends. I just wanted to hide.

“I tried every single diet and couldn’t get them to stick. I know my own will power was to blame, I would binge eat and didn’t have a healthy diet. I’d eat whatever I wanted and had a terrible sweet tooth, chocolate was my major weakness. Because of the ME I can’t exercise making it difficult to control my weight.

“Since the surgery my confidence has rocketed. I’m now only a little over 13 stone and feel so comfortable going out with my friends. I enjoy my life so much more, and I’m never worried about people looking at me or judging me. I get a lot more male attention now too!

“I love going to theme parks and can now go and not worry about fitting on the seats of the rides I love to go on. I’ve also been on holiday to the Cape Verde Islands, something I hadn’t done for years because of my paranoia about going on planes and worrying about the seat size. I had a great holiday lying on the beach, feeling comfortable and enjoying myself.

“I’m absolutely ecstatic with the results and I can live my life to the full. My family has been so supportive throughout the whole process and combined with the team’s expert help I’ve never felt better. I’d recommend Streamline Surgical to anyone. The surgery has made my life so much better and I’m a much happier person. Being overweight can be so depressing, the surgery has made me the confident happy person I’ve always wanted to be.”

Gary, 45, from Seaford, East Sussex, is a Streamline Surgical gastric bypass patient: “I’m a totally different person now. I can look in the mirror and I’m happy.”

“My weight problem started when I was at secondary school. I started to get bullied, and I realised the bigger guys were left alone so I began eating more to stop the bullying. But even when school finished I didn’t stop. I didn’t have many relationships and would turn to food for comfort. I could easily have four packets of crisps in one go and used to drink up to ten 2-litre bottles of fizzy drink each week.

“I tried every diet – you name it, I tried it. My weight would yo-yo as I lost interest in the diet and went back to food. Nothing worked for me, and my self-esteem was so low, I felt self-conscious the whole time. On holiday there was no way I would take off my shirt on the beach, no matter how hot it was. At work, I was a manager in charge of around 30 staff handling a large turnover and so I was quite successful. Yet I would still hear comments and jokes from my staff and customers about my size practically every day which made me really upset.

“Ten years ago I was diagnosed with type 2 diabetes and over the last few years suffered with bouts of depression. My weight definitely contributed to this – I believed I was useless and worthless. Then one day I thought enough was enough. I’d had enough of being fat with the jibes and the embarrassment I had every single day.

“I spoke with my GP and he referred me to Guy Slater. I was given all the details of Streamline Surgical’s support groups and began watching The Fat Doctor. The key thing for me was the fact they didn’t hide anything, and then speaking to people at the support groups confirmed to me that surgery was what I needed.

“Weighing over 25 stone and with my health issues such as my diabetes I was an ideal candidate for surgery. I found the staff at Streamline Surgical so friendly and they treated me with respect and like a ‘normal’ person – it was like a five star hotel! I am full of admiration for Guy Slater and can’t speak highly enough of him. He has given me back me life, probably about 30 years of it!

“I am no longer on any medication for diabetes which feels amazing. I don’t miss any of the bad foods I used to eat all the time and I can actually look in the mirror now and not feel disgusted. I love going out and shopping now and can buy clothes off the peg, which is so nice. I am so much more confident. Before I used to have to put on a certain mask to try to get people to like me and now I don’t feel that I need to do that – people will like me for me.

“I used to cycle to work before I had the surgery but had to give it up as it would take me about 20 minutes to get my breath back. Now I have so much energy and my fitness levels have improved so much. I can cycle to work no problem now and I also walk a lot.

“My wife is so happy with the new me, she calls me her “hunky, new fella!” I promised her before we got married that I would lose the weight and now I have kept my word after years of trying and failing. Some of my friends don’t even recognise me which I find gives me a complete buzz and helps my confidence even more. All my family and friends have been so supportive and they are pleased that I am finally happy with myself.

“Now I’m just waiting for things to happen as the whole world has opened up to me. I really want to go abroad soon as this time I won’t have the embarrassment of needing an extension belt and having the tray resting on my belly! This time the tray will be able to fully go down and once I’m on the beach I can take my shirt off without any anxiety. To anyone considering the surgery I say do it, you won’t regret it”


The Sudbury Clinic,
Clementine Churchill Hospital,
Sudbury Hill,

BMI The Clementine Churchill Hospital,
Sudbury Hill,
Harrow Middlesex,

Regional Specialist Bariatric Centre St Richard’s Hospital,

Spitalfield Lane,


West Sussex,

PO19 6SE

One Ashford,
Kennington Road,
TN24 0YS

Nuffield Health Guildford Hospital,
Stirling Road,


Weight loss surgery: Why Weight?
Weight loss surgery (also known as 'bariatric surgery') is considered a safe and effective treatment to the obesity epidemic facing the UK. Streamline surgical takes a look at the impact of obesity and why it is important not to ‘weight’.