Assert Health & Fitness

Experience the Assert Fitness difference and find out how guys and girls in Northumberland are losing weight, getting stronger, dropping jean sizes and feeling awesome with our affordable semi private and group training packages.

We are a premium fitness training facility based in West Sleekburn. Our modern studio has been designed to be a private environment for professionals and parents to prioritise their health & fitness.  Life is increasingly hectic but our membership programmes are designed with the busy client in mind.

Let us help you take back control of your health and fitness by creating long lasting and sustainable exercise and eating habits. Why waste time wandering around a gym wondering what to do next or going for that same run over and over again.  Let us take care of your exercise programming with our unique, fun, and varied sessions that get RESULTS. No stone has been left unturned in our quest for your success.

We understand that you are busy. So we work hard to make our training systems the most impactful to fit into  your life in the shortest amount of time. Effective, Efficient and fun training. Nobody wants to spend 2 hours in the gym, when they could spend half of that and get double the results. We focus on helping you move better, move more freely and get stronger. Our Training Programs are designed to be short and effective and burn anywhere between 500-1000 kcals without slogging it out for hours on the treadmill or elliptical trainer. Training can and should be fun, effective and exciting. We aim to bring that to every session.