Croagh, Co. Limerick

Healthy body,
healthy mind.

Strength classes, one-to-one coaching and a full injury clinic under one roof. One coach who has spent fifteen years learning both sides of the job.

18classes a week
2011coaching since
12maximum in a class
Accredited & insurance approved
REPs Ireland registered professional ANMT registered Laya Healthcare approved
What I do

Four ways to work with me

Every service runs out of the same building, so training and treatment inform each other instead of pulling in different directions.

One-to-one coaching with Liam

Personal Training

€43.75 a session

Train Smarter. Get Stronger. Achieve More.

Transform your fitness with personalised coaching designed around your goals, lifestyle, and ability.

How it works
A strength and conditioning class

Strength & Conditioning Classes

€90.00 a month

Build Strength. Improve Performance. Train Together.

Challenge yourself with coach-led group sessions that develop strength, fitness, resilience, and confidence.

View timetable
A BFF Box For Fitness class

Boxing Fitness Classes

In your membership

Hit Hard. Sweat More. Feel Stronger.

High-energy boxing workouts that improve fitness, sharpen skills, and boost confidence in a fun and supportive environment.

About the class
Treatment in the injury clinic

Neuromuscular Therapy & Injury Clinic

€65.00

Recover Better. Move Freely. Perform at Your Best.

Expert assessment, hands-on treatment, and rehabilitation to relieve pain, restore movement, and keep you doing what you love.

Treatments
Treatment in the injury clinic
Liam O’Sullivan, OS Clinic
Who you're training with

Liam O’Sullivan

Qualified as a personal trainer in 2011. Since then he’s added Strength & Conditioning Coach, Sports Massage Therapy, Neuromuscular Therapy and dry needling.

That combination is the whole point of the place: the person coaching your session is the same person who can tell you why your shoulder hurts, and do something about it.

Personal TrainerStrength & Conditioning Sports Massage TherapyNeuromuscular Therapy Dry NeedlingPitchside Medical Care
Results

What clients say

Left by members and clients. Their words, not ours.

I went to him with a shoulder injury and he went above and beyond to help me recover in time for a triathlon. He explained what he was doing, which I found reassuring.
Siofra · injury & recovery
Have been taking Liam's classes for a few years now and these are the first fitness classes I have stuck with for this long. The classes are varied and a good mix up of different exercises and Liam keeps us well motivated. It is great to have this facility available to us. Will definitely be sticking with OS Fitness 👍👍💪
Mary · Classes
I had such pain at the time, nothing was working. From the first day I attended Liam I had relief. Thankfully I'm back to being able to attend my fitness classes.
Jenna · knee injury
Liam's approach is encouraging and he listens to what your goals and achievements are. Professional, positive and motivating.
Lorraine · classes
Liam’s classes are top-tier. The mix of different class types keeps things fresh and challenging every single time. They are definitely tough—there are moments you’re just in total zombie/survival mode—but Liam is right there pushing you through it. Couldn't recommend OS Fitness enough!"
Mark O · Classes
Liam came up with a plan to get me back on my feet again. Between appointments he kept in touch and was at the end of the phone.
Karen · recurring injury
I started with Liam and OS Fitness just under a year ago and I am absolutely thrilled with the progress I’ve made with his guidance even if he’s the first face I see most weekday mornings! If you want extra energy, better sleep and a few inches off the waistline, I couldn’t recommend him enough
Mark T · Classes
OS Fitness classes are fun, professional and incredibly welcoming. There’s a great group atmosphere that makes every session enjoyable, with plenty of encouragement and support along the way. Whether you’re a complete beginner or more experienced, everyone is make to feel comfortable and included. A fantastic way to get fit, have fun, and be part of a great group!
Katie · Classes
I find a selection of classes and the early timeslot are ideal for my schedule. The classes are challenging but accommodate all levels and allow you to progress. Great variety too from day to day and week to week in the classes.
Teresa · Classes
This week

Full timetable

Same times every week. Book your place in the app — you’ll see exactly how many spots are left.

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