Unit 17/18, Tower Court, St. Davids Rd, Llansamlet, Swansea SA6 8RU

About Mainway Fitness

Home of Assault Fitness, based in Llansamlet, Swansea

Welcome to Mainway Fitness, home of assault fitness, based in Llansamlet, Swansea.

We offer the most uplifting fitness classes about with over 50 classes a week to choose from. We also have a state-of-the-art gym with some of most up to date equipment, so whatever your goals are we have the tools and experience to help you reach them.

Where it all began…

From a young age I had always been a sporty kid from playing a variety of different sports one being being football which I was lucky enough to play as a professional for my local team Swansea City FC. This led me down the path of being a personal trainer because of a career ending injury which made me look at other career opportunities.

Being interested in a variety of sports crossed over to me being introduced into functional fitness and HIIT (high intensity interval training). With it being so many different training variations, using all types of kit and really thinking outside the box (as they say), it made me love this style of training and help me grow my personal training business 10 fold!

That being said that’s exactly what you’ll find in our classes, you’ll rarely do the same class twice, which not only challenges you physically but mentally too.

Our Philosophy is built from 3 core values:

We’re very creative with our workouts and creating a friendly environment.

We’re very passionate about what we do and and helping every single person that comes through our doors.

We’re very personal, we treat everybody the same making sure new and existing members feel welcome and supported throughout their fitness and health goals.

The gym has a very unique feel to it, I’m a local guy with a very close knit team around from family members to long life friends, which creates a very friendly atmosphere that is full of personality. I believe we have a perfect team – combined with a number of members that have been part of the journey from the start 2010 and who are still keen members hitting 10 classes every week.

You really need to test this out and see for yourself, make the change today and we will change the way you think about training. We are passionate about what we do and our track record for transforming our members speaks for itself. We hope to see you very soon!

Carl Mainwaring

Meet our Team
What our Customers Say
Since I started the plan on the 4th January I've found my energy levels have massively increased.
Following the plan is getting me through each day and you get all the support you need a few clicks away. Such a wide range of workouts that keep you on your toes, feeling fitter, stronger, and more confident than ever! Thanks Mainway Fitness
Adam Thomas
I was happy with the 1st picture as I had already changed simply from completing a sweatbox class 5 days a week!
3.5 weeks is all that’s between these pics undertook the MF Academy Metcon programme and didn’t add more than 2 sweatbox classes a week in. I work full time, single mum, 3 children can’t live in the gym! I was underestimated scared of carbs but info from the programme along with continued support from Todd and Carl and I achieved this! Lockdown this time around has hit me hard, but the live classes have kept me motivated and I’m committed to returning when those doors open and re doing the 4 week programme. No restrictions, no over training, and a heap load of support! Genuinely never enjoyed a gym or felt so comfortable before. Can’t wait to be back!!
Emma Williams
It’s hard for me to put into words what Mainway Fitness has done for me. Each & every one of the trainers, members and especially Carl.
I knew I couldn’t continue the way I was after Christmas. I threw myself into the deep end first chance I had January 1st. All the support was there from the word go. Literally. Started in the YouTube videos the first week. It wasn’t easy, my fitness hit an all time low & to no fault but myself. I let myself go mentally & physically I was the heaviest I’ve been in 29 years. It wasn’t easy. I worked hard every single day. Gradually the workouts got easier. The support was always there from Mainway, any help you needed everyone was a message away and helped me in every way I needed. I stuck to my diet religiously. Cut out alcohol, fast food, pop, and so many more drastic changes for me personally. The trainers are next to none. The live workouts started and within five weeks there I was -25 pound. Going into week 7 2 whole stone lighter!!! I feel absolutely brand new. My fitness levels are up. I’m also motivated that much from every single person there, including members I’m now doing 2 workouts and a minimum 5k walk every single day. I cannot thank them enough for the bottom of my heart. It’s changed my life forever, I really am in this now for the long haul. My confidence has grown an incredible amount, although I look so much better honestly on the inside I’m 100x more. I’m strong, my mental health is flying and my fitness levels improving every single workout. I wouldn’t know where I would be without them! What a saviour! For the rest of my life I will shout Mainway as long as I live! Life changing! Thank you so much everyone ❤️ xxxx
Kath Williams
I first started training when I was 22 and fell in love with the gym. But after the gym I went to closed down, I thought I’d never find a gym that felt like home again.
For years I tried different gyms all over Swansea and Neath, but I couldn’t find anywhere like it and my weight began to yoyo. Until eventually I got recommended to Mainway Fitness ♥️ Finally a gym that makes you feel comfortable, motivated and like family. Since joining in October 2019 I have grown stronger and fitter than ever, both physically and mentally. The atmosphere in this gym is the best I’ve ever experienced and the love and support you receive from staff and fellow members is second to none!   If you are looking to start your fitness journey and fall in love with training this is the place to be! Thank you, Carl and all the staff and members at Mainway Fitness
Jessica Llewellyn
I’ve been with Carl and Mainway Fitness since the start over 10 years ago.
They have built up a fantastic gym community who really care about their members and go the extra mile in support especially during these COVID times. I cannot thank them enough.
I decided to do the 6 Week kettlebell challenge as I have never committed to such a plan before and I’m really pleased with the results. I haven’t been this happy with my fitness for many years.
The support throughout was amazing even Carl calling me for a chat. The nutrition plan was spot on as was the training. I recommend anyone to commit to these plans and I will be signing up to the next one.
Mainway fitness is a fantastic community with fantastic facilities! Thank you!
Damian Lawson