Train Like an Athlete.
Discover your strength at Stack House Westcliff-On-Sea.
Everything You Need to Train with Confidence.
Fully Equipped Gym
Industry-leading equipment for strength, cardio and functional training.
Personal Training
Qualified coaches offering tailored guidance and support. Explore Personal Training →
HYROX & Group Classes
High-energy sessions designed for real people who want to get fitter, stronger and push themselves. View Class Timetable →
Free Member Induction
Every new member receives guidance from day one.
Supplement Bar & Café
Pre and post-workout fuel on site. Tea, coffee and meal prep available to support your training.
Women’s only space
A private training space designed exclusively for women to feel strong, confident and supported.
We’re A Gym That Works for Every Level
Whether you’re just starting out or returning to training, our Westcliff team will guide you from day one.
Structured sessions for all fitness levels.
Weekly Group Classes
Coach-led sessions for those who enjoy training with structure and guidance.
45 minutes sessions designed to build strength, fitness and confidence — suitable for all levels.
HYROX
Hybrid
Yoga
Boxing
Legs, Bums & Tums
Cardio 45
Strength and Conditioning
Mobility
Train With Purpose
Top of the range equipment. Structured training. Expert support.
Day-One Support
Every new member receives a tailored induction and real guidance.
See It for Yourself
Book a tour, explore the space, and meet the team.
Memberships starting at £32 per month.
We offer straightforward membership options designed to suit different schedules and goals.
✓ Direct debit memberships
✓ Prepaid options available
✓ No joining fee
✓ Short-term options offered
Visit Stack House Westcliff
Address
351-361 London Road, Westcliff, SS0 7HT
Contact
01702 339 448
westcliff@stackhousegym.co.uk
Opening Hours
Monday – Friday: 6am – 10pm
Saturday: 8am – 6pm
Sunday: 8am – 4pm
Prefer to Receive Membership Details First?
Enter your email and we’ll send you full membership information and any current offers.
Beyond The Gym Floor.
The Warren Clinic
Sports massage is a hands-on treatment designed to relieve muscle tension, improve joint mobility and reduce soreness and fatigue. By working directly with the muscles, it helps release tightness, ease discomfort and support faster recovery.
Whether you train regularly or simply feel stiff and achy, these treatments are tailored to help you move more freely and feel your best.
Book your appointment today and give your body the recovery it deserves.
Follow us on Instagram:
@stackhousegym_westcliff