JJK Fitness

Fantastic experience: why is there a guy with white hair crossing his fingers

Fantastic experience: Was great. had a guy called mahito as my trainer he was great but he had many stitches on his face

Fantastic experience: What a vibe! JJK has made me find my love for excercise again. All the coaches are brilliant and come with a lot of knowledge and energy. Everyone is welcoming and friendly, massive variety of workouts and times the classes are on. The programming is brilliant, cannot fault this place at all, wish i tried it out sooner.

Fantastic experience: My daughter had been going to yoga at JJK Fitness for around a year, and came home every week telling me how great Lora is and how I should go along as well.. so I started with no expectations other than I would benefit from the wellness and some personal time. In my first session I was truly terrible, couldn’t sit on the floor easily, let alone get up, couldn’t reach my feet in happy baby pose, balancing on one leg .. no chance. Even so, I have been going weekly, determined to make my personal target of attending yoga for a year, and I can say my daughter was right, Lora is fantastic. Throughout the lesson not only is Lora incredibly supportive and encouraging but also actively suggests changes to positions to accommodate different abilities in her class. I’m therefore able to challenge myself to progress, and improve. I’ve just passed the 12 week mark and I can now do all those things I couldn’t manage in my first session .. and more. The change in my fitness, flexibility, strength, balance and wellness has been incredible. I should add that I am 60 years old and suffer with arthritis. It’s never too late to start! Thank you so much Lora for supporting my journey to better health.

Fantastic experience: By far the best gym I’ve ever been a part of. I originally joined to try one class (struggled big time) and haven’t looked back. Whether you’re looking to get stronger, fitter, push your limits, or simply be part of an amazing community that genuinely loves training, JJK has it all. Top-class coaching team too. Every coach brings knowledge, energy, and support, making sure you get the most out of every session - no matter your fitness level or goals. After almost two years here, I feel stronger, my cardio has improved massively, I've completed a couple Hyrox races, I'm more flexible (the yoga classes are a must every week for me) and, maybe most importantly, I’m happier and healthier in myself. Group training is different level for me. If you’re anywhere within walking or driving distance and thinking about joining a gym, do yourself a favour and give JJK a try. You won’t regret it.

Fantastic experience: Coaches are really detailed and approach everyone during session. The gym itself is really nicely set up, super motivating even at 6AM! Quality experience

Fantastic experience: Run, don’t walk to JJK! Best gym I have trained at- fun classes, and great trainers.

Fantastic experience: My twelve year old loves it, great session for youngsters

Fantastic experience: Amazing gym facility, great coaches and friendly people. Big up coach Craig!

Fantastic experience: Such lovely staff and amazing sessions, will definitely be returning!

Fantastic experience: Excellent place for fitness sessions!

Fantastic experience: Amazing facilities, fitness instructors are really encouraging and has such varied classes which incorporate all levels of fitness.

Fantastic experience: Great gym. Experienced coaches, welcoming and supportive atmosphere. Absolutely love it!

Fantastic experience: I joined in January and have done a range of classes, I’ve worked around the cardio classes, engine and individuals my fitness have improved hugely with different workouts every session! All the coaches have been great, it’s got me hooked

Fantastic experience: I started my fitness journey with Boxfit in December 2021 then progressed PT sessions in January 2022. Loved the classes and the coaches are so friendly and helpful. I didn't and still dont feel intimidated when I attend the classes. JJK is a HYROX affiliated and the sessions are really hard work but so much fun with the HYROX family. Would highly recommend!!

Fantastic experience: Brilliant gym. Excellent coaches & all the equipment you need. Really couldn’t recommend this place any more. I’ve been training for years and joined JJK back in October last year, having moved out of London. I came in with high expectations, but Joe and the team totally surpassed them. There’s a something for everyone, from beginners to those looking to compete. The only downside is Joe’s dodgy taste in tunes. Go on. Give it a go. You know you want to.

Fantastic experience: I’ve been going to JJK fitness for a number of years. There is something for everyone, whether you are just starting out in your fitness journey, or you’re more experienced and want a vigorous workout session. There are a range of classes for all fitness levels, which can suit your busy lifestyle. The JJK trainers are there to help, support and guide you on what best works for you. The atmosphere is fun, friendly and I wouldn’t go to any other gym, as at JJK you are a valued member. Highly recommended!

Fantastic experience: I felt so intimidated going back to the gym after such a long time, and now I wish I had just done it sooner! Everyone is great and makes you feel comfortable and welcome - a gym for everyone - all abilities!! Joe was great getting me started with some PT sessions, and now Michelle is training me regularly. Their encouragement and steady pushing is what keeps me going! Also have to mention the meal plan that has also made a great difference - FUEL meals have kept me on my calorie count and are delicious!!!

Fantastic experience: I can highly recommend JJK Fitness. The team are excellent trainers and take into account all capabilities. The motivational workouts enable me to live a great life with a free moving body, a good position to be in, aged 63. Their JJK Fuel meals provide tasty, healthy food to compliment the training.

Fantastic experience: I’ve been coming to JJK for over five years and it has helped me in many ways. I’m stronger, fitter and have more body confidence. The coaches are great at tailoring sessions where needed as they take the time to get to know everyone individually. There’s a really friendly and supportive community which I love - everyone is welcome.

Fantastic experience: I really enjoy the foundation classes. The sessions work me pretty hard and are great for supporting strength and conditioning so that I have felt stronger and fitter in my running, biking and swimming. The Foundation class coaches are very encouraging, motivating us to work as hard as we can but also providing adaptations if needed. A friendly positive vibe is encouraged.

Fantastic experience: Very friendly team and gym members - everyone always encouraging and make people feel very welcome. Classes are always fun, high energy and a great range of equipment for Hyrox. Never intimidating and I can't think of a better 1 hour all in smash it range of exercise classes. You have been warned.

Fantastic experience: Excellent concept

Fantastic experience: What a fantastic place to work out. Seems in the first instance for really fit people but how wrong that impression is. All levels and ages. Friendliest team ive met in a gym environment. If your thinking of joining do it.

Fantastic experience: An amazing place to work out. Ola has given me the confidence to train again after becoming a mother and I can’t thank her enough. Her classes are amazing! Really excited to get back into fitness at JJK, amazing location with lots of classes on offer!

Fantastic experience: Enjoyed the workout session with Joe. When I booked online and saw 2/24 spots available, I assumed that meant only 2 people were coming but it turns out there was only 2 spots left so the place was at capacity with 24 people. But there's a lot of space, great equipment and a sensible approach to Covid regs, so it seems like its all working well. A great crowd getting after it and a good sense of team spirit.

Fantastic experience: Just had to pop on and share my experience of JJK Fuel! I’ve been having the food for over a month now and I’m loving it. The quality of food is outstanding and the variety of dishes means I’m not getting bored. I started the Fuel journey to lose lockdown weight and it’s worked but I’m going to continue because I feel so much better and it’s definitely helped with my workouts. The online programming is fantastic but I can’t wait to get back to the gym, it seems JJK really does have it all!

Fantastic experience: Great atmosphere, facilities & PT’s.

Fantastic experience: Want results then this is the gym for you, great staff, very knowledgeable and will push you hard, they offer a wide range of classes and great meal plans to cater for everybody and your goals.

Fantastic experience: JJK is a fun, exciting community with clear core values. Dedication, commitment and inclusivity are at the heart. The highly skilled trainers teach you that when it comes to health and fitness there are no limits. Age, size and ability will not be barriers to people’s achieving a healthy life style. Customer care is exceptional and clients benefit from carefully tailored programmes to motivate and support them to be the best they can. All trainers are passionate, experts in their field and highly motivated. They all bring a specialism and strength to the community and quickly get to know you - the client - and what you are capable of. They challenge and support to help clients realise what they can achieve - anything is possible at JJK. ❤️

Fantastic experience: I have been training with Joe & his amazing team for 3 years now, & absolutely love it! My results have been just incredible, & I’m so grateful. I had tried so many different gyms & this is the first one that keeps changing things up, keeps raising the bar & keeps me moving forward. The atmosphere is amazing, there is a wonderful community spirit, social life, & some lovely people. I can not recommend this place highly enough.

Fantastic experience: Never used to like classes at any other gym I have been a member of. You will not work as hard as you will at JJK. The classes are well thought out, change every 6 weeks, are fun and trainers are devoted to giving you a good / hard work out everytime you go (no matter your fitness level)! Atmosphere is electric and everyone is so friendly. I have recently taken part in a 4 week body blitz. Including personal training and gym grub. Results so far have been amazing. Personal training is focused to your individual needs and pushes you even further to achieve results. I would also highly recommend gym grub, the food is so good (people at my work have signed up to this after seeing my lunches) will post 4 week results at the end of my 4 weeks. Thanks to all trainers at JJK. I cant believe I'm saying this... but I actually enjoy going to the gym and exercising now!!

Fantastic experience: What a great find this place has been for me. After becoming a fitness instructor myself 2 years ago I wanted to improve my own fitness levels and reduce bodyfat, both of which wouldn't have happened without the expert advise from JJK. JJK have top of the range trainers and help with all levels of fitness from beginners to advanced. They run fun group exercise, can help with nutrition and provide tailored packages to suit anyone. This not your run of the mill High St Gym, fully recommend.

Fantastic experience: A great place with a supportive and friendly atmosphere. The huge variety of classes means there are so many opportunities to keep fit, have fun and try something new. All the coaches are motivating and have great fitness expertise. I have seen such an improvement in my physical and mental health since joining and those few hours in the gym each week are now an integral part of my routine and happiness. It can be intimidating joining a new gym especially classes, but the JJK team have been so welcoming and cater to all types of fitness. The best decision I've made in 2019 was to join - thanks to all at JJK

Fantastic experience: After having major surgery in June I felt I needed something fresh to kick start my fitness again. And JJK really has done that! I do the morning group sessions which I find highly motivating. They’re always set up ready for you and start bang on 6am. I’ve done a couple of the evening classes also the TRX and STRENGTH which are AMAZING!! If your form is out the trainers will correct you which I love. Joe the owner is very experienced. As are all the trainers. I can feel myself getting stronger as I’m lifting heavier weights. The workouts are tough but why would you want it to be easy? Only been coming just over a month and can see a difference in my shoulders and arms especially. If you want results you won’t be disappointed

Fantastic experience: Best gym in Hemel

Fantastic experience: At 48 years old and a good two stone overweight I needed to find a long sought after fitness and lifestyle that worked for me and delivered results. It turned out that JJK personal training was the answer. Highly professional team; friendly atmosphere and I have achieved more than I ever have. a great place, trainers and nice people too.

Fantastic experience: A great place to train. Everybody is welcoming and does their bit to keep motivation up during sessions. Highly recommended!

Fantastic experience: Joe and his team are great, very friendly atmosphere, every class is different. I wouldn't go anywhere else

Fantastic experience: Friendly environment with professional instructors where great results are achieved.

Fantastic experience: Great team, fab community, staff all so hard working! Highly recommend this place.

Fantastic experience: Can't praise Joe and his team enough! Makes training a real joy! he really gets the most out of you in the sessions leaving you feeling fantastic! great equipment and environment, highly recommend his services

Fantastic experience: I'm a mum with two children and started at JJK last spring as wanted to feel better about myself. I planned to do some classes until my summer holiday and never ever thought for one minute I would still be going on a regular basis. Love the staff and the classes

Fantastic experience: Great trainers and a really friendly atmosphere. I've seen great results since coming here, both the trainers and other members keep you motivated! Would definitely recommend.

Fantastic experience: "Achieve your Best"... this couldn't be more true. With Joe's positive attitude and motivation I have been able to turn my life around. I know what you are thinking "That old "Chestnut" but it's true. I wouldn't have believed it either but you really can feel and look amazing. Obviously you need to put in the hard work and determination but with the right person guiding you along the way it really is the best feeling. I was in a bit of a dark place, depressed about how Iooked and genearly not feeling great about myself. Like alot of other people I decided to join the gym but it really wasn't working for me, so I decided to do something about it. Three years ago I met with Joe and straight away I knew he would be able to help me. I have not looked back since. I have loat 3 1/2 stone and I am feeling fit and looking great. JJK offers such a great diversity of training from one to one personal training and a fantastic choice of classes to suit everybody. There is such a great atmosphere, everybody is so friendly and all the trainers are really approachable. Dont just take my word for it, pop along and see what you can achieve!

Fantastic experience: Been training here twice a week for the past 12 weeks and my fitness has gone throuugh the roof. Put on 2kg of muscle and lost 3% body fat. Would recommend

Fantastic experience: Such brilliant classes, exercise is no longer a chore, the time flys, and everybody seems to have a positive friendly attitude. Highly recommend this gym.

Fantastic experience: I regularly attend the group exercise classes, and have seen really good and fast results. They are fun and motivating and it doesn't feel like a chore coming here. It has a really nice family atmosphere and now all of my friends have joined too! We have so much fun whilst getting the results we want! I really reccomend this to all ages, shapes and sizes.

Fantastic experience: Fantastic group exercise classes! Excellent trainers, great energy, fab music, mixed abilities and i love the variety! Each week the routine is different in each class, so it's not the same old routine every week!. I cant believe I actually enjoy training for once!

Fantastic experience: Joe and his team have been fantastic. They have got a really nice approach to fitness which doesn't make anyone feel they aren't welcome. The last 3 months have been great and Im still enjoying the 121 sessions and the classes. The results are getting there :-)

Fantastic experience: I left Virgin gym as I was bored with their classes and the PT sessions were so expensive. Since joining JJK, Joe and his team have re-ignited my passion for exercise. Although I go in moaning...I come out smiling and feeling better for it. Definitely worth the pennies!

Fantastic experience: I left a mainstream gym over a year ago and have been going to JJK ever since and have seen some great results. Joe, Ola and the team are friendly, motivational and always push you to achieve the results you want!

Fantastic experience: Absolutely love training at JJK, the personal trainers are amazing and the classes are always varied week to week! The classes are challenging but they cater to all fitness levels! I would highly recommend JJK!

Fantastic experience: After a lifetime of abusing my body through overindulging and generally having a great deal of fun, doctor's orders coupled with the inevitable factors of ageing pushed me into taking some drastic action; I am 62 (I hate saying that) and time is running out. A Google search turned up JJK Personal Trainers. That chance reveal has turned into quite a success story for me. I am now into my fourth month with Joe Kelly and his team, with twice-weekly hour long sessions that have transformed my health. My significant weight loss - two stone in old money - came through sensible dieting that was driven by me and superb cooking by my partner, coupled by enthusiastic encouragement by Joe and co and their killer exercise routines. I am physically fitter, have tons more energy and have lost, at the last count of a couple of weeks ago, a total of 12" around my waist, chest and various bits of my anatomy (avoiding the obvious!). I have thrown out my entire wardrobe, an expensive but nonetheless highly rewarding consequence. The most important fact though is my doctor, when visiting him for my regular Type 2 diabetic review, is now talking about reducing my meds rather than the threat of me injecting. All of my stats are going the right way and quite dramatically too. Working with Joe and co gives me the drive to do stuff I would not have done; I am not naturally athletic or sporty and need to be pushed. It's been a great success. I cannot recommend JJK highly enough.

Fantastic experience: Have been doing HIIT training on a daily basis at a different venue in the past year, but having attended classes at JJK only did I realise how much further I can give and improve. JJK trainers are always spot on and never let off. I have 100% faith that I will reach that last mile of ridding the midriff fat and achieve numerous PBs here at JJK.

Fantastic experience: ABS FAB! If you want to become re-acquainted with your 'abs' JJK is the place to be. PT or class based fitness studio with a terrific atmosphere, top rate trainers, loads of equipment and always fun - just remember 'no pain, no gain'.

Fantastic experience: Best small group personal training gym around. Love the mix of both personal training and group classes, from HIIT to strength to boxing and JJK1000. Fun atmosphere with professional trainers.

Fantastic experience: Great place to workout. Group classes are good fun and there are lots to chose from. I especially recommend boxercise with Rachel - high energy 45 mins with some great music. The standard of PT training from all the team is very high. I am fortunate to have Ola as my PT - don't get me wrong it's not easy and she won't let you stop but her motivation and enthusiasm carries you through the session. If you are looking to make a change to your fitness - book to tryout a class - you won't regret it.

Fantastic experience: Really enjoy the variety of classes, Joe and ola bring great energy to the classes! It is not like a normal gym, it's fun, friendly and you can work as hard as you want with the benefit of receiving encouragement from everyone else plus the trainer's. I have now started the yoga class in the sun (yes there has been sun :) ) on a sunday morning... Perfect start to a sunday :)

Fantastic experience: Small group pt sessions are fun, challenging and offer a good variety of formats and trainers so that you never get bored and keep coming back. After 3 months I have made really good progress and feel much stronger and fitter than before. I've achieved a lot more in a short space of time than at other gyms. Good facilities, great instructors and a friendly atmosphere.

Fantastic experience: I started training at JJK 2 years ago, initially as part of rehab from injury, and haven't looked back! Although my goals have changed, I still find the range of options for training and classes varied and challenging. Joe and the fantastic team are highly trained, experienced and extremely knowledgable and will adapt classes and small group personal training to your fitness and strength level, and your goals. As well as their very broad PT knowledge and expertise, many of the team are specialists - if you spin, you won't find a more challenging and enjoyable class, if TRX suspension training is your thing, your instructor is TRX trained. Most of all, training is fun, and if you train with others in small PT or group classes, there is an atmosphere of encouragement when we're all "feeling the burn!" Advice and guidance on nutrition is available, as well as facilities for analysis of your general health and body composition. The environment is friendly and inclusive, with all of us different shapes and sizes. You won't regret giving it a go!

Fantastic experience: Joe and the team at JJK are quality! Ola is so full of energy and fully motivates you when at classes, Rachel mixes up boxercise each week to keep people keen, joe is fully professional and takes time to speak to clients! Love the atmosphere here, no judgements are made it's welcoming for all levels of fitness, shapes, sizes and ages!

Fantastic experience: Amazing! I never thought I would be in shape again after having three children but I've never looked better It's never too late! Thanks to Joe and Ola who are fantastic trainers....always pushing me to my limits and encouraging me. Such a friendly, comfortable atmosphere. Highly recommend JJK personal trainer!

Fantastic experience: Forget your mainstream gyms and join JJK! The whole team at JJK offer a personal experience whilst providing outstanding results. It's been an absolute pleasure training with Joe and his whole team! Have been training here for just other a year and I've honestly never felt fitter!

Fantastic experience: I have been attending JJK for over 2 years. The people (both the trainers and the customers), the facilities and the classes are top quality. I look forward to every class I attend and have never been fitter. Each class is different and cater to all fitness levels. I cannot recommend Joe and the team highly enough highly enough.

Fantastic experience: The team at JJK are amazing, committed, passionate & totally focused on providing a totally varied & versatile program to suit all your fitness needs. For me, it starts with the wide choices of classes from Personal PT, Small Group PT & a whole mix of great classes. The monthly fitness tests, stat & pic check in's, where you can not pay attention to how much you've improved. Most importantly, my sadistic favourite its Joe's focus on form there's no escaping his beady eyes, on you every second making sure what ever move your making its totally on form... :-)

Fantastic experience: After getting bored with doing my own workouts alone at the gym I started paying per class at JJK and then as I loved it so much I quit my gym and moved onto monthly membership. Its such a motivating atmosphere and every class is fun and you always feel that you have worked hard. Great for all ages and sizes and for anyone that wants to change up their boring workout routine!

Fantastic experience: I joined JJK back in December 2016 when I knew i needed to loose weight, since then i have lost 50 pounds and 10% body fat. Joining JJK was honestly the best thing ive ever done. The atmosphere in the gym and the people who attended are so friendly and I felt so welcome from the moment i joined, its so nice to see new people and join and realise how well everyone gets on and become a family. The trainers are incredible their drive to help you on whataver goal you want to achieve is homestly amazing and it helps so much. Ive been doing the small group PT programme as well as some 1:1 with joe and i honestly look forward to attending the studio every time I am going. I have become such a more energised, happy and more confident person! Couldnt recommed to people JJK enough!

Fantastic experience: I joined jjk back in May after having a baby in January. I had looked around at other gyms and decided to try this one. I contacted Joe and he gave me a weeks free trial to try the different sessions and classes. As soon as I got there on the first day everyone made me feel so comfortable, all the trainers are so friendly and really tailor things to everyone's individual abilities, I never felt left behind even though my fitness level was so bad! I stayed with jjk for 3 months and only left due to moving to a different area. In that time I lost 8% body fat and 7inches over all, as well we improving my general fitness level. I know that there's no way I would have every achievesd this on my own. Every day is different and all the clients are lovely. I made some friends, got healthier, lost fat and learnt some great techniques and training ideas I can now do on my own. I honestly cannot recommend this place enough, the trainers are friendly and get you doing things you never though you would! Keep up the good works guys! And Ola actually makes you enjoy spin!!!! xx

Fantastic experience: Joe has put together a fantastic gym with the latest and best equipment. A great variety of classes available with brilliant instructors and a brilliant environment to work out in. JJK will do the job whether you're a beginner or an experienced gym bunny.

Fantastic experience: A friendly results oriented gym with highly knowledgeable trainers. I trained at JJK for around 10 months before sadly having to move away, doing PT, semi-PT and classes such as HIIT and Bootcamp. Joe and Ola have managed to create a gym experience that is equally as welcoming for newcomers and experienced gym goers alike, with acute attention to your own personal goals. Highly recommended.

Fantastic experience: I had Personal Training at JJK for about 10 month, until the time I relocated away from Kings Langley, the very best thing about JJK and the trainers is the differentiation in the exercises/routines which they delivered, this meant you never got bored with the same set/s at every session. I had 5 or 6 trainers and enjoyed them all. Also if you ask they will put music on which is more to your taste than theirs, they are nice like that!!!!

Fantastic experience: I have always enjoyed going to exercise classes , not only for my physical health but also my mental health! but after injuring my back in Dec 2015 it took almost a year before I felt confident and strong enough to start working out again. I then joined JJK, signing up for group exercises. Every class I have taken part in I have really enjoyed, and I have built up my confidence and fitness along the way. Spinning with Ola, boxing with Rachel and yoga with Faye are my favourites but there are many different classes to suit all in a very friendly and non intimidating atmosphere. I thoroughly recommend JJK for anyone who is looking for a gym locally.

Fantastic experience: I joined JJK almost a year ago and so glad that I did. I have tried a variety of classes and also small group personal training and have enjoyed both. There is a variety of classes to suit different needs and also ensure you are doing different workouts. My fitness levels have definitely improved and there is always someone to ask for advice. The trainers are all friendly and so everyone enjoys the classes.... also a friendly atmosphere.... much more than any gyms I have joined.

Fantastic experience: I've been having PT sessions with Ola for a while now. I love Ola's bounce & enthusiasm. Somehow she keeps me working hard, even when I think I'm about to collapse in a heap! Great classes too, all the trainers are professional, friendly and motivational. Unlike most other gym's the trainers always know who you are, and the other members are really friendly too. Having been to many gyms over the years this is the first one that's really made me feel welcome and comfortable. Which all in all makes it a great place to get a good workout while having some fun :)

Fantastic experience: I've been attending classes at JJK since April 2016 and I have seen a huge difference in my fitness levels/body shape! There are a wide variety of classes for mixed abilities, all taken by excellent trainers who are focused, energetic and make exercising enjoyable. Being a member at JJK is like being part of a big family, it's such a fun and friendly atmosphere and I couldn't recommend it enough.

Fantastic experience: I've been doing PT with Joe for almost two years now, along with the classes I have seen my shape and fitness improve more than I thought it could. It's not like any other gym I've been a member of, Joe and the team make it so much fun and have boundless energy spurring us all on. And with the variety of classes to chose from I never get bored or complacent. It's also great to have gym classes which welcome all fitness levels so you can give anything a go with support from others. Definitely recommend it for anyone wanting to get fit whilst enjoying themselves!