Aaron goes out of his way to help his clients build confidence in the gym. For myself, I have multiple complications with my back that means adjusting gym sessions and building specific muscle groups is key. Aaron takes into consideration all of this, and has helped me build strength and surpass my goals. This is very much personalised 1:1 training, above and beyond what you can gain at a usual gym, he invests heavily in his equipment which enables you to use top tier equipment with the support of a first class trainer.

I've been training with Aaron at his private gym for the past 2 months and it's been a very positive experience. Aaron has understood the goals I want to achieve and tailored workouts to my specific needs, ensuring I get the most out of each session. The equipment is fantastic, and the private setting cannot be emphasised enough, as it allows for a very productive routine to be followed without interruption. I would highly recommend Aaron and his gym for anyone serious about their goals training.

Aaron is a polite and helpful guy. He will make you feel comfortable. He will always adapt to your needs (goals, availability). The experience that you get with him is unique (1 to 1) with the best gym equipment that u can get. I was suffering from 2 previous injuries, and I struggled going back on track. Each time I pushed myself, I feel the same pain. He helped me tremendously with his expertise in the field to train safely, sort out my muscles unbalance and go back on track. I recommend him and I will use his services in the future Thank you for your help Aaron 🙏

Where do I start! Well after doing a lot of research i came across Aaron from One21 fitness. Aaron was very good at listening to my needs. He had the right plan and advice which suited me well and i was able to achieve my goals. Very accommodating, professional and always there to help. If you want a professional coach & private gym then One21 fitness should be your choice.

Aaron is an amazing personal trainer! I look forward to our sessions. He makes the sessions fun and enjoyable. No matter how difficult my week has been I always leave with a smile and feeling better! He is also a great listener and I feel he really understands my needs and goals. I have a bad knee which Aaron has helped me a lot with as well through training. I’m feeling stronger and happier since coming to these sessions, it’s definitely been worth it!

I've been visiting Aaron's gym for a few years now. It works perfectly for me, it's in a great location, the equipment is top quality and I get the gym all to myself, so no waiting around in busy gyms. Most importantly over all of that though, Aaron is a great personal trainer. He's very knowledgeable of the industry and keeps upto date with the latest best practices. He adapts to individual needs with providing training plans that improve your physical performance while protecting you from injuries. Aaron is very easy to get along with which is important for one to one training so I would definitely recommend him to anyone.

I went to Aaron when I was at a low point in life. My health was at an all time low and I had no confidence in myself or my appearance. I only worked with Aaron for a couple of months but it was a massive turn around. For once in the past several years I actually felt good and felt like I was making a change. While sessions here are more expensive than a public Gym, it’s worth it as you don’t have to worry about anyone else and Aaron focuses entirely on you to make sure you’re doing your workout to the best of your ability. I’m having a break right now due to some other commitments but I’m seriously aiming to work with Aaron again in the future

Aaron is an excellent personal trainer. His gym one21 is an amazing concept to train under the supervision of a professional trainer with exclusive access to the gym for that one hour. The gym has all the equipment’s needed to get stronger and fitter. Aaron has a deep understanding of his field and has customised the program as per my needs. He ensures that the exercises are well planned and tailored and I can already see the difference it’s making. Would highly recommend for anyone who is serious about get fitter and stronger.

Brilliant service and very much tailored to individual needs. I have some back problems and with Aaron’s focus and knowledge on technique, he’s been working around those issues while maintaining a productive workout routine. I am working odd hours and he always tries to accommodate clients. I have moved with Aaron from when I first met him as a personal trainer at a gym.

Great guy, has a private gym so during the sessions you don't need to wait for equipment and worrying about availability. All the equipment is well maintained and very clean! Definitely as good as your going to get it as a PT, would recommend.

Aaron is incredibly professional and efficient. I have a great trainer who truly understands my needs and knows how to motivate me. He's also completely flexible in accommodating last minute requests/ changes. He has been helping me with my back pain and I’ve been getting very good results. Definitely highly recommended! Thanks Aaron.

Really enjoy my sessions with Aaron! I’ve never had enough self motivation to consistently exercise at home ..and definitely lacked enough self confidence to brave a public gym! (..my idea of hell!) So having personalised sessions in a calm environment is just ideal for me! Aaron is very welcoming, I instantly felt at ease with him and comfortable in his presence. He has an excellent range of equipment and really listens to what you want to get out of your sessions, tailoring each one to your specific needs. Since starting my sessions with Aaron I’ve not only noticed an improvement in my physical strength, posture etc ..but I’ve also noticed a massive improvement in my self confidence too. ..and the best bit is that it isn’t a CHORE, or something I HAVE to do.. I actually enjoy my sessions and look forward to them! I would highly recommend to anyone! ⭐️⭐️⭐️⭐️⭐️

Really been enjoying training with Aaron. No nonsense, practical support looking at a sustainable way of training. Focusing more on the methods to adopt a better training approach, which has a metrics based outcome. Ie rather than looking at achieving an "arbitrary" weight, getting lifestyle and training plan in place to achieve that. Equipment within the gym is fantastic allowing for an interesting/new forms of training.

Aaron is always ready when I arrive . The gym is clean and all the equipment is modern and clean and always set up ready to go. Aaron has devised my programme and it us based around my desire to lose a bit if weight and to build my core strength , ie my aching back and dodgy knees ! .. it has helped me achieve both . He is also very good at discussing my diet etc and pointing out , very politely, where I could make improvements ! .... I would recommend anyone to contact him and make the move to improve their health .

I’ve been with Aaron for nearly a year now. The 1:1 sessions really motivate me to exercise, something I don’t think i would be able to do on my own at the gym. I really like the way he always tries to fit me in on his schedule if for some reason i can not do my usual time on a certain week. Would definitely recommend him

I m really happy that I reached out with Aaron and made an appointment to discuss my situation. In meeting him, I told that I would be committed to him if he was committed to me in my overall health and improvement. I needed someone that focused on my specific needs and not the “one size fits all” training program. I needed variety. I needed focus. A few months later, I never looked back. I am so grateful to Aaron for where I am today. I m suffering from depression, and he helped improved sleeping, increased strength and endurance, and most importantly,I always are welcomed as a friend! He created a cosy ,private atmosphere for his clients. Arron,Thank you for your professionalism,knowledge and support!

Incredible equipment (some of the best on the market!) which has been hand-picked with care. Everything you need regardless of if you're a beginner or elite athlete. The environment is very welcoming, spotless and Aaron is incredibly caring and committed to his clients. Highly recommend.

I have worked with Aaron for a few years now, we work regularly on strength and flexibility. I am an older person and Aaron has been careful to listen to what I want to achieve and has adapted my programme to suit my needs. He regularly reviews the programme and alters the exercise regime to keep the programme interesting and challenging. He regularly attends training to ensure that he is kept up to date and develops his knowledge base. I persuaded my husband to train with him, not expecting him to stay longer than 6 months but he is still there. Aaron has researched and developed a specific programme for him to build up his strength following a knee operation.

Aaron uses his expert and personable approach to provide a client centred holistic plan. He adapts to the evolving needs of the client and holds an atmosphere of calm and support which means that you are achieving goals in no time! He has done both remedial and strength work and I have seen massive improvements in my physical strength and fitness. Can't recommend enough!

I've been training with Aaron for a few weeks now and the experience has been nothing short of perfect. He's a great guy who really knows his stuff. I've got a condition that affects my joints and Aaron did lots of research before we began training together to make sure he could tailor the workouts to me to ensure we did no damage whilst maintaining maximum effect from the training. His private gym is equipped with the latest equipment, all really high quality stuff, and the investments he's made into the little things and the big things proves he's serious about doing right by his clients. If you're looking for a personal trainer in Southampton, check out One21 Fitness and give Aaron a message. And not only is a he an amazing personal trainer, he's a really great guy who deserves all the awards he's got and will surely get in the future.

Best private gym in Southampton without a doubt. The state of the art equipment is perfect for everybody because it’s so easily adjustable to your very specific goal. Aaron is completely dedicated to every single client and I couldn’t recommend enough

Aaron is a very knowledgable and dedicated PT. He has helped me hugely over the years to reach my goals. The equipment in the gym is excellent, with a lot of kit you won’t see in other gyms. I can’t recommend him enough.

Aaron has helped me meet all my goals and really push me to do better with my fitness. Being 1-1 with Aaron has really helped me to be more motivated to work out. Having a whole gym to yourself without anyone area is amazing. Aaron has really helped me with tracking my food and what changes I needed to make in my diet. I would recommend him to anyone who was looking for personal training.

I was really scared ( as I’m overweight) about joining a gym but liked the idea of it being 1-1. I can honestly say It’s been the best thing I ever did. Aaron is quiet & calm in nature & amazing. He’s passionate about what he does & his gym. He’s great, as is the equipment. I can see the difference already in a couple of months and look forward to going to each session. Highly recommended 10/10 Nikki

I’ve been working with Aaron at one2one training for around 3 months. Since working with Aaron my strength & conditioning has improved immensely, Aaron’s dedication in helping you reach your goals is spot on. The equipment Aaron has installed is brilliant and fantastically engineered. If you really need a great personal service tailored to suit your fitness requirements, you should look no further than Aaron at one2one training.

One21 Fitness has help me to achieve my goals. My husband and I we have been training with Aaron for the past 3 years - no regret!! He motivates so much during your session and that helps you to build your confidence. I have now reach a level that I didn’t imagine I would be able to - All thanks to Aaron for believing that I can do it.

I am not a person that enjoys going to the gym, but with Aaron the experience is completely different. Our 1-2-1 sessions have helped me achieve my goals (summarised in becoming more active). Aaron is very knowledgeable and approachable, and he has a very kind way of solving your doubts and help you understand the best way to exercise according to your goals. He has changed the way I understand physical activity. Thank you, Aaron!

Aaron is an amazing PT, personable and knowledgeable. I feel like I'm getting a lot more healthier and fitter under his guidance. Would highly recommend him to everyone

Aaron is a great personal trainer and I get a great workout from him which motivates me to want to work more on fixing my diet and getting the most from his sessions! Thanks!

Aaron is the Sherlock Holmes of Personal Trainers. I've worked with many PTs over the last 15 years. Aaron is the only one that listens well and works with me, rather than trying to push their own agenda or 'method'. Typically, any exercise I do will flare up sciatica due to inflammation of my back muscles. With Aaron's advice I'm building up my muscles to give my back the support it needs to mitigate the chance of this happening in the future. Every week I feel I'm making progress.

I have been training with Aaron for just under two months and have nothing but praise for him. Aaron knew he wanted to have his own gym and he remained focused with this throughout. He has worked so hard to ensure it is client centred and my first impression on seeing the gym was “an extremely professional looking gym that is very welcoming” As for Aaron, he puts all of his focus into his clients and always wants to bring out the best in them. He has so much knowledge and I am speaking from personal experience with how Aaron has addressed a hip and back weakness and helped me to gain more movement with much less pain. For that I am grateful. Aaron really cares for his clients and ensures their well-being even when they are not training. He is very accessible and will always go out of his way to help. Most importantly he listens to his clients and is determined to give you his quality time and expertise and concentrate all of his efforts towards you and bring out the best in you. If PT appeals to you and if you want to give your best then Aaron is the person to help you make positive changes in your life.

As a Sports and Rehab Therapist I always send clients who are dealing with ongoing pain to Aaron for ongoing strength work. Unlike other gyms, Aaron can give 100% focus to each client, all the time in his studio. I also Aaron has a ton of knowledge of the body and pain, which surpasses that of many other personal trainers and coaches in the Hampshire area. Furthermore, his knowledge of all aspects of physical training is of the highest quality. Thoroughly recommend to all.

Aaron at One21 is a quite simply a fantastic PT. He's great at setting a pace and understanding your needs as a client as well as generally being a great guy to hang out with. The One21 gym is amazingly equipped with pretty much everything you could ever need and combined with Aaron's coaching the progress you'll make is insanely fast. A symbol of his professionalism is definitely how he has run his business during Covid-19. The gym feels safe, clean and Aaron makes sure that all measures are met to ensure his clients safety. This is indicative of how Aaron approaches every aspect of coaching. Top guy, top gym. Would recommend to anyone!

One21 fitness has made a huge impact on my life for the better. I’ve been training with Aaron the owner of One21 Fitness for around 7 years now and the new gym only enhances the experience of training. Aaron has helped me lose 3 stone for my wedding, when I was suffering with a back injury and didn’t think I’d be able to lose the weight. He was able to adapt my training to my needs and capabilities at the time, meaning I was able to lose the weight I wanted. I’m now able to do exercises and lift weights that I thought I’d never be able to do. He is always expanding his knowledge by completing various course, including how to safely train pregnant clients which enable me to feel confident to train with him whilst pregnant. The new gym allows me to train one to one with Aaron and not feel self conscious of others in the gym. The gym has all brand new high spec equipment which are easy to use with Aaron’s training technique. Honestly one of the best decisions I’ve ever made was training with One21 fitness.