Michael de Bas

Personal Trainer / Physiotherapist
I am experienced in both the sports and healthcare sectors, with experience as a personal trainer and physiotherapist, I've worked together with professional sports teams. And made tailored programs for diverse clients, from elite athletes to burnt-out professionals. My approach prioritizes sustainable progress over quick fixes, delivering honest insights on how I can best guide you throughout your journey.
Sidney Klein

Personal Trainer / Mental Coach
I have over eight years of experience in helping clients reach their full potential. I focus on developing both the body and mind. That's why I go further than basic training methods to include many other key factors like lifestyle and mental coaching. By drawing on research into health, I integrate these insights into every training or coaching session.
Alexandra Oprea

Personal Trainer / Pre- & Postnatal Specialist

I have a particular passion for working with women and I am currently expanding my knowledge in pre- and postnatal training to better support them through this stage of life. Training with me is structured, adaptable and built to last.
I work with clients to build routines that feel realistic, supportive and aligned with everyday life, while guiding through challenges that affect consistency.
Boly Vroh

Personal Trainer / Rehab Training
I specialize in resistance training focused on building strength, improving movement quality, and creating long-term physical resilience. I work with clients dealing with hip, knee, and lower back issues, adapting training to support recovery while still making consistent progress. My coaching is structured, adaptable, and built around your lifestyle to create results that last

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5.0 Stars

45 minuten geleden

Echt super fijne ervaring bij House of Fitness! De begeleiding is professioneel, persoonlijk en volledig op maat. De trainers denken actief met je mee en passen alles aan op jouw doelen en situatie, waardoor het niet alleen haalbaar is maar ook echt motiverend om vol te houden. Je voelt je hier echt gezien en geen nummer. Ik ben heel blij met deze plek en zou het iedereen aanraden die serieus en met goede begeleiding aan zichzelf wil werken!

Siham Elh

8 weken geleden

I've been working with Sid for 2.5 months and the results are definitely showing. We do 30 minute sessions that are fast paced, and because of his instruction, you get way more out of that half hour than a normal solo session. Sid knows his stuff inside and out, and he's genuinely funny, so the workouts fly by (I lied…it depends on how tough the session is). On top of the great coaching, the gym itself has a fantastic, friendly vibe where everyone is nice and supportive. I would highly recommend it.

Eric C.

8 weken geleden

I've been training with Sidney for a few weeks now. The first small successes are already showing on the scales, but more importantly: I feel so much fitter, more energetic and happier! Thank you Sydney for pushing me to go beyond my limits & always adapting the training to my individual needs! Einfach wunderbar ;-) :-)

Amina Boeker

8 weken geleden

I moved to the Netherlands two years ago and settling in unfortunately meant I took a two-year break from working out. Finding the right gym has always been important for me, as I look for a collaborative and personal touch - so, I'm really glad I restarted my fitness journey in Amsterdam at House of Fitness. I've been training twice a week - once with Sidney and once with Michael. They're both great - extremely knowledgeable, and they took the time to understand what I'd done in the past, as well as my lifestyle and fitness goals, so they can tailor the workouts in the best way to help me improve my strength and endurance. The atmosphere in the gym is always positive. From the get-go, they make you feel comfortable and welcome, while still making sure you're pushing yourself in every session. And as a bonus, the music is fantastic!

Mehr Shah

11 weken geleden

Sinds ik train met Sidney, heb ik enorme stappen gemaakt. Hij is zeer kundig, motiveert enorm en zorgt voor afwisselende, uitdagende trainingen. Ik voel me fitter en sterker dan ooit. Een absolute aanrader als je jouw doelen wilt behalen!

Fatih O

15 weken geleden

Dit is mijn eerste ervaring met personal training en ik begrijp nu pas waarom mensen dit doen. Wat een waardevolle toevoeging, zeker met Micheal als trainer! Hij luistert actief, speelt in op je behoeften en voelt goed aan wat per persoon werkt. Daardoor is er veel persoonlijke aandacht en maatwerk. Je voelt je gezien, gehoord, ondersteund en gemotiveerd. Tijdens de trainingen merk je ook dat Micheal veel kennis heeft en is zijn achtergrond als fysiotherapeut duidelijk voelbaar. De trainingen zijn doordacht opgebouwd en hij onderbouwt de oefeningen goed. Hierdoor word je stap voor stap, op een effectieve en duurzame manier, meegenomen richting je doel. Echt superfijn! De oprechte en persoonlijke aanpak van House of Fitness vind ik heel tof. De trainingen en gesprekken hebben mij geïnspireerd en ik zou deze personal training sessies echt iedereen aanraden!

Judith

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Our Story

House of Fitness was born out of a shared opinion that personal training should be more than just a workout, it should be a partnership in health and lifestyle.

Sidney Klein en Michael de bas built their career in fitness management and physiotherapy. Driven by a desire to help others reach their potential, they transitioned to entrepreneurship.

While working together as colleagues in a previous concept, Sidney and Michael realised they shared a distinct vision that didn't align with current gyms. What began as personal training quickly evolved into a community asking for more; group lessons, open gym access, and a space that truly felt like home.

House of Fitness officially opened its doors on March 1, 2026.

Two men shaking hands and smiling at each other in a gym or fitness setting.

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Michael de Bas

Sidney Klein

Alexandra Oprea

Boly Vroh

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