The gym is small and very busy at lunchtimes meaning that you will have to wait to use certain equipment and struggle to find exercise space. However the equipment is good and well maintained. There is a good array of classes on offer but no yoga or pilates disappointingly. Classes are run at good times in the morning, lunchtime and in the evening. There is no pool or steam room but there is a small sauna in the male and female changing rooms. The changing rooms are a good size, clean and equipped with mirrors and hairdryers. There are complimentary towels and both shower gel and conditioner in the showers. The gym is not open on weekends.

Small gym incorporated in a business centre. A fact to be aware is that only works Monday to Friday do the fact of the place. Very hard to enter if you never been there before and after you need to adquire a card to go through security. The gym is in the basement is usually packed around lunchtime and after 5pm also. Seems well arrange across the floor but doesn't even all the machines because of limited space. I only use this gym because its very close to work.

Everyone here is very friendly and helpful, but the gym is tiny. Equipment is very very limited and geared towards those who want to use treadmills/spin bikes. Very busy during lunch, so if you want to use this during lunch and do weight training, I'd be wary about signing up, as you'll be waiting around a lot. In addition, getting a pass to the building to use the gym is a massive faff and wasted a lot of my time

The staff make this gym, it has a great atmosphere.

Small gym but clean and well equipped. Staff couldn’t be more friendly and helpful. Love Cristina, Julie and Eni’s classes; small, personal, energetic and challenging. Great vibe.

Best gym I've ever been to mostly due to the staff, my 2nd family. Good classes and although a small gym it's got everything you need plus a sauna!

They do not have large fields inside but hey, this is the heart of Mayfair. Love their sauna which is never crowded.

Great area, lovely restaurants around the square

So pleased this place is back open and my training regime is back.

Fitness First in Barkley Square is great! I have been using this gym for years. Place is kept tidy, cleaned, sanitised and I am informed new weight machines are planned to arrive soon. Anny/Anita is a great front desk manager: professional, attentive and always happy with positive energy!

The classes at Berkeley Square are excellent and impactful, Cristina does a great job at ensuring they are varied every day and adds more challenging ones such as stability focused to ensure you keep developing. She also remembers areas you want to work on and explains things well. I find the gym very friendly, the instructors know your name and are helpful, good camaraderie between the gym goers too.

I came by for a trial session, and was very pleased with the range of equipments, cleanliness of the premise and professionalism of the staff. Needless to say, I signed up with FF by the end of the day. Shout out to Cristina and Kyle for doing a great job!

My FAVOURITE gym in London by far 🩷 everyone here is a total angel, makes your experience so fun and personable every time. Plenty of great equipment for you to use and make your workout awesome each and every time. The facilities are fantastic and the sauna at the end of your workout is the cherry on the top! Have been coming here since January and love it each and every time I visit (which is a lot) 😂

I love the friendly and welcome greeting from reception whenever i come in, I am always greeted with a smile and this has been the same for the 15 years I have been coming here. I really enjoy the classes - Christina, Eni and Julie have great energy, technique and the ability to make you workout with their own unique style. The PT's are also always friendly, its not the biggest of gyms but it has lots of personality !

Love this place. The staff are so friendly and helpful. It's not so busy like most other Gyms I've been too, which I like. Big shout out to Julie for her welcoming smile and being so helpful. Julie's HIIT class is awesome!

This gym is amazing. Amazing facility, top equipment and great environment. Good service , friendly staff and super clean. Eniko and Cristina make everyday a fantastic workout experience , they are just amazing!

It is a small gym but quote convenient for me. Great staff. I really enjoy Julie's classes as her technique and style is great!

Great gym with clean facilities, friendly staff and very energising group classes that help to start the day right! Loved the HIIT workout with Cristina - would definitely come back for some calorie burning and good mood!

Recently joined and very happy with Fitness First in Mayfair. Well equiped gym and great staff, thanks Cristina for your amazing classes! Only improvement point: gym closes at 9 pm whereas most other gym close at 10 pm, would be great to have one extra opening hour in the evening.

I recently joined Fitness First and it's been a really good experience so far. The gym is well-equipped and the staff is really friendly. Special shutout to Cristina, done some XLift sessions with her, challenging yet rewarding. Highly recommend.

Lovely area for lunch

A bit on the cramped side, but they do have a good array of machines and weights. A drawback is getting through building security if you are using the gym as a guest. Pleasant staff.

Very rude staff. Not going there again

gym is standard and clean, good value for the area but room for improvement. spin class in the middle of the gym is quite strange. not much space to work out if you don't use machines. mats are very small. towels are small and often not available.

Staff where really passionate and showed how much they love their club and members. The gym could be designed a little differently, but provided everything I needed from a gym.

The staff here are so lovely! The gym is small but it feels like a home with one big happy family.

Irma and the team do a fantastic job. Have been going for years and the staff has been amazing. Also highly recommend Sunday for personal training

An amazing gym with everything you could need. I really enjoy attending the morning and lunchtime classes. Equipment is always clean and the staff are very lovely - in particular Kyle, Sanjay and Enny!

What an amazing gym. The reception staff are all so friendly and welcoming. The gym is always clean. The personal trainers are all so helpful. Well done to all. 👏🏻👏🏻

I was just in town for a visit and signed up at this gym since it was the closest option. The trainers are extremely friendly and helpful, this made the vibe at the gym very pleasant from the moment I walked in. The gym is small but it still contains two larger spaces that enable you to do lunges, deadlifts and hip thrusts. For a smaller gym the layout and the positioning of the equipment just work well together, creating a good atmosphere. Everything was clean and organized !

I've been going to this gym for years and it's the best one in Mayfair. The Berkeley Fitness team are a family and they welcome each member with open arms. Starting with an amazing manager Irma, a fantastic spinning instructor Eniko, its professional and dedicated PT's to achieve your fitness goals. I highly recommend this gym.

I joined this gym as it was close to where I live just for a month. It’s definitely worth the money and their whole team is very pleasant and cordial. The environment is energetic and gets one to be comfortable and work out without any kind of hassles. I would definitely recommend this gym because I had a fantastic time working out in this place .

Found this little gem in the heart of Mayfair, gym is very well equipped and all staff is lovely There is an amazing vibes here, every member of staff is so professional, helpful and super accommodating, they know all members name !! Never happened to me before at gym Been training with Tyrone a 51 yo machine !! Just love it !! Highly recommended

Small gym, limited free weights section but good classes and clean

Great gym, well equipped, always clean and tidy, I really enjoy my workouts there. Staff is super nice and friendly. Special thanks to Irma who has been extremely helpful :) Looking forward to be back again.

Good gym - fantastic staff! The gym is kept clean and tidy at all times, all the staff are very friendly and helpful - special mention to Sanj who always spots me when I need it. Highly recommend it!

Have been a member for a few years and now we have organised corporate membership for our colleagues. Great friendly team always there to help. Every inch of this gym is put to use but you can usually get on the kit you want. Not fussy and great value especially for Mayfair totally recommend

Lovely and very professional team. We feel very welcome when they greet us on the arrival. Apart of that the gym is immaculate and super clean. Highly recommend… 🙌🏼

Gets the job done. Not cheap, and underground, but if you’re working nearby it’s convenient. Perfectly well equipped. Average rating because there are nicer gyms for the price.

Nice people and good organs

I have joined the gym almost 2 years ago. Best decision ever. I have visited different venues but the Berkeley square branch just hits differently. The staff is amazing, professional, welcoming, always ready to help and to make you feel home. The knowledge and passion they have for fitness and for the members is unmatched. Eniko, Irma, Akim, Alfie, Kyle, Ayo, Effie you are the best an athlete can ask for.

Great gym with a lovely staff! All of them very well prepared offering many different types of work out and classes. Julie and Cristina best at classes 🔥 Eniko superb in her recharge and stretching class Akin excellent and motivating in his approach Irma and Kyle running the reception will really look after you! Last but not Least my boxing PT Ayo,such an amazing coach ❤️ Couldn't recommend more🤌🏼

I was looking to try out gyms in Central London today so was ringing around . Here was the only one that actually called me back and the guy on the phone asked my name and approx time of arrival. This I should add is very important because the gym is located in the basement of a building with security barriers to permit entry. If the staff are expecting you, you can enter the main entrance else you will be redirected through the service yard round the back. Though members are given a swipe card to permit entry I had to wait a few minutes for the guy to come and pick me up but it was OK as the receptionist was quite pleasant. I kinda braced myself for the guy to start forcing a membership package down my throat non stop - I knew I was unlikely to take out one from the outset because I train martial arts most days of the week and never really have time for gym. The guy showed me around the gym - not the largest, though, a fair bit of equipment available. I was there between 6-9pm - though I don't think it was ever more than 25% full. He wished me a good visit and said he would be around to answer any questions. I can't stand dirty changing areas so was glad to see it was in good order and that there were staff checking it at intervals. The ceilings are not the highest but I am 6"3' and I had plenty of clearance. As I said before, entrance without membership is fiddly, thus at £45 a month I'm happy to sign up. Also, I'm probably happier to do so because they were not pushy with selling membership

Great gym, I go Monday-Friday and the staff really make you feel welcome - hugely important when going somewhere daily. Shoutout to all the front of house staff, each one of you make such a good effort with everyone who walks through that door and also to the great trainers we’ve got access to!

I have the pleasure of spending a good few months of the year at this gym while travelling for work and can easily say it's a great gym. Staff members are amazing, the gym is ALWAYS clean. The gym is smaller than most but it has everything you need and as they say great things come in small(ish) packages, thank you guys for making my stay in London managible 👍🏼

Super Friendly Gym, all the staff are really lovely and helpful! - Cristina is an absolute star, always pushes me to do better and her classes are so much fun!

A great neighbourhood gym with a friendly vibe and great people. Everyday they provide fun and inspiring classes, challenging you to reach your best potential, and the facilities are always clean. If you ever need advice on your training or have some questions, there is someone there to help. I would recommend this gym to anyone and I’m really happy to have found this gem in central London!

The trainers are amazing: Anastasia, Irma, Ruben, Shaun and Eni. The staff Ola and Isabella are also super friendly. The gym is clean. The trainers are friendly and they help you. I got helped with my panic attack inside the gym. They make you feel at home. Moreover, the trainers are very knowledgeable and help you as well. Sign up to the gym !

Gym is in such a great location and all the staff there are wonderful. The classes run in the morning/lunch/evening by Dylan and Eniko are fantastic to attend, but also plenty of other equipment around the gym to use. Recently refurbished, clean changing rooms with plenty of lockers/showers and a sauna.

One of the best places for gymming! Everyone is extremely sweet including Christina, Eniko and Julie. Julie's core classes and Eniko's spin classes are HIGHLY RECOMMENDED for anyone wanting to come here - you won't regret it!!

What makes this gym stand out are the staff - everyone is very warm and friendly taking the time to help you out if you need it. The equipment is on point given that the gym is relatively small. Yes the Gym is not massive but only expected for the cheap monthly fee for a Gym in the middle of Mayfair. Good service. Would recommend

The gym is pretty small and so is missing some equipment seen in normal sized gyms. Because the gym is underground, it is pretty dark and so isn't the most motivating environments. The people working there are nice but there are too many working during peak times who manage to get in the way. I personally only go because of the location but would avoid otherwise.

I joined this gym in August 2014 and absolutely love it. It has everything I need and it is close to work. It offers a great variety of classes and one doesn't need to sign up in advance. Just show up and enjoy! I normally go to lunch time classes which are run by Billy and Connor. The classes are always fun, yet challenging. Billy and Connor are great personal trainers, knowledgeable, professional and fun to work out with. Due to my work relocation to Surrey I am leaving the gym soon and I will miss you guys terribly. Thank you for making my lunch times fun! All the best for the future. Lana x

Cool gym! Has everything you need! It's clean, with great staff, PT's. Definitely try the classes!

My home gym and I normally find it too busy to train at lunch time but since lock down ended this week the gym floors being much quieter and more space to train in the studio area. I know as the offices start back it will start filling up again but right now its perfect, no waiting for equipment, staff friendly and cleaning going on all the time Before they reopened I'd been training with my P.T in the park but especially on the hottest day of the year an air-conditioned gym is definitely worth 4 stars.

Nice clean gym, friendly staff. Would definitely recommend.

We wanted to cancel our contract because we've moved and they requested us to send them the flight confirmations. We have send the boarding passes. After that they didn't answered and after two months we founded out from our previous landlords that we received a letter from a credit recovery company. We have contacted First Fitness again and they told us that those are not considered flight confirmations without telling us this thing first time when we send it and what kind of other confirmations is acceptable. As far as I know and I've flight many times, there are no other confirmations necessarily when you fly. We have send them more than one week ago all the forwarded correspondence from the flight company that we've used but still no answer. We are really affected by this situation and we want to solve the problem as soon as possible.

You cannot get service these days, they don't bother answering the phone or calling back when call dropped. Will try them anyway but a pity his chain is nothing like Nuffield where I'm also a member but there isn't a Nuffield nearby which is an issue

Expensive and overcrowded

So-so gym.

Small gym that one needs to take out another membership even if you are a Tier 1 member. That simply does not make a lot of sense.

Newly refurbished changing rooms and greatly improved

Great place and team.Definetly i will came back!

Small gym, but great location and well priced membership

No bad. Could do with a few more machines.

Relatively cheap gym for its location. Gets quite busy during lunch times but okay for those who can work around using equipment in different ways. The gym is small, but sufficient for a quick gym workout. Due to the lack of machinery in the gym itself (such as no back machine) you will have to purely use free weights for certain body parts. The squat rack lacks a platform (although they have a platform area separately). And because no-one squats as its a t shirt gym, the leg press is placed right in-front of the squat rack hence you cant see yourself squat whatsoever. Overall there are quite a few faults, but given the price and location (as I go during work lunch) - you can work around the faults.

Great atmosphere and lovely members of staff ... very helpful ??

The staff are amazing!!!

Not included in Fitness First multi gym. Rude staff. Definitely don't go there!!

Well priced, not busy at all in off-peak

Best Gym

Great gym!

An amazing gym in a great location. Staff are absolutely excellent. Anastasia is a fantastic trainer who I love going to my morning classes with-- her and Shaun are always so attentive and encouraging and really push you. My fitness has improved so much since I've been working with both of them and always SO look forward to them ! The gym itself is small but facilities are fantastic. The space is modern and clean with a variety of great equiptment, changing rooms are lovely with fitted TV's, great showers and a great little sauna.

Great facilities, helpful and motivational staff and brilliant classes. Would thoroughly recommend

Joined this gym a couple of days ago, and i am already ready to change gyms. But there is nothing else in the area for me. Hopefully they honour their 10 day cancellation policy. It was also a nightmare to get into, and eventually i called and booked an appointment to actually be able to get in to sign up. Completed my first work-out today (got in at about 3.20PM, and spent more time waiting for weights to free up than actually doing anything. I was doing squats and dead lift today (in an exceptionally confined area), and i was struggling to get the amount of weights i need. I dead lift up to 180kg, which is about half of everything they have in the gym. Throw in a couple of guys benching 100 kg and there are not enough plates. The free-weights area is the extremely small so 4 guys in there is crowded, while only about 10% of the cardio equipment is being used (of which they have about 30). I shudder to think what this gym is like at lunch or after work (in the free weights area at least).

Lovely friendly helpful staff, clean and well equipped and maintained gym. Recommended.

This is such an amazing gym!. The Pt's and Fitness first team, who work there make it such a great place to train. Everyone is friendly and helpful. Big shout out to the fitness consultant (Eniko) who runs the classes at the gym - she's wonderful and puts together some awesome classes x

Amazing gym, staff is hilarious, Makes me feel like at home, Especially reception, Recommend anyone :)

This gym has been my home for years now. It is amazing to be back after all these months. The staff is extremely welcoming, they haven't lost their touch. The gym feels safe, its cleanliness is maintained constantly throughout the day. Happy to be back and training again.

Very impressed with the trainer known as Sunday who is polite, affable and very knowledgeable

Brilliant gym. Very friendly and helpful instructors who are always on hand to give great advice. Machines are always kept clean and in great condition. Highly recommended.

Please add these machines if you refurb the gym.

Amazing gym and amazing team. All are very friendly, helpful and provides work out classes to boost the day.

Fitness First Berkeley Squire you are Fantastic! Before I hate going gym, you guys made me feel welcome. I look forward to go gym after work. I really thank you all the staff from bottom of my heart. Every time I need some help with routine, they are always helping me. I am very happy with their service.

Amazing gym to be honest, top machines, top people. Staff members are the nicest and most helpful people, I highly recommend this fabulous gym. Always remember, Fitness First✅💪

Really enjoy going to this gym. The staff are always so friendly, and welcome you with a smile every time you enter the doors , this really helps keep you motivated to workout. The staff including my PT Sunday are really professional , fun to hang out with but also know their stuff , they have allowed me to surpass my fitness goals and not only be in the best shape I've ever been but also integrate working out into my lifestyle. Can't recommend the team here enough for helping me achieve my goals and making working out an enjoyable process.

Overcrowded, too many PTs just chatting to each other and getting in the way. Attracts too many selfish people.

Great gym, I've used it for years....the staff is excellent, always bringing positive energy and making everyone feel welcome. The place is always kept clean and they really make the best use of the space. Great value for Mayfair, definitely recommend.