707-224-2300 | 520 California Blvd, Napa, CA. 94559

Due to CDC, State, and Napa Health Regulations, we are currently closed till further notice

Permanently Closed. Restructuring in Progress.

Success Stories

Teri Freeman, Napa CA

At age 65 and 3/4 years I needed to lose weight and tone up in a short period of time so I challenged Trainer Extraordinaire John Stewart to take on the task. After 2 months of 3x week – 30 min workouts I lost 10 lbs and after 3 months I have stabilized at a weight of 122lbs and tightened up 6.25 inches of flab while increasing muscle tone and improving overall endurance. John’s expert workouts take you to the edge of your abillity leaving you slightly winded but never sore. My hit and miss home workout programs could never have given me such great results. John is a great motivator and cheerleader proving you don’t have to be a youngster to feel youthful and fit. Anyone willing to put in the effort for good health and fitness will reap rewards beyond imagining.

Ashley, Napa CA

I just wanted to thank you for taking me in as a client. I have never felt so good about myself! Some days are painful but it’s worth it lol Over the years I have tried other modalities for loosing weight/getting in shape and they never pulled through as much as working out has. Also I realized before I signed up with you that I don’t want to just be “skinny” I want to be fit. I love coming to your gym because it’s not like those big box gyms where you get lost amongst everyone and your just another person.

Thank you again for all your time and for pushing me to do my best! I couldn’t be happier with my decision to join your gym

Sarah Rusin-Dickens

“In a town with gyms everywhere, and having been a member at most of them, this one is the best. I am not a “gym person” but John and his staff makes you feel so comfortable. The equipment and bathrooms are always clean. Being open 24 hours is also a plus. It is self check-in so you can walk in and get it done without having to worry about someone trying to sell you something. You can also bring a guest if you like. There are no classes but plenty of free weights, machines and cardo equipment.

Another benefit is that they offer personal trainers, both male and female. I have been using John as a personal trainer for about three months now. As I previously stated, I am not a gym person, nor a morning person. However, I have gotten up and started going to the gym to workout with John at 7 am and have lost inches at every weigh in. Having a trainer is the best investment and the number one thing I would recommend if you are trying to lose weight or even tone up. John keeps you motivated and pushes you to do more in a way that makes you WANT to do more, not feel bad about yourself. He makes working out fun and enjoyable and you don’t realize you have been working out so hard! I started noticing muscle tone in the first month and have gone from being embarrassed about my body to enjoying it. I am seeing changes and have muscles in places I have never had before. I can’t say enough about this gym or John!”


Jane Orr

I looked at other gyms in Napa, but Custom Health & Fitness on California is the right place for me. As advertised, it is always open, very clean, has a great variety of well maintained equipment, a friendly staff and the focus is personal. Coming from a very sedentary job, I knew I needed help to get healthy again. In the three months that I’ve trained with John (owner), I’ve lost two sizes, my cholesterol is down 11 points and I feel stronger and more energetic than I have in years. John is a great motivator, pushing me just enough but taking care to emphasize good technique to prevent injuries. I’ve become a regular at the gym and I look forward to my workouts. I can’t say enough good things about Custom Health & Fitness. Give them a call and check it out for yourself. I think you will like what you see.

Nicci Richardson

Whenever I talk to my clients about the gym this is pretty much what I tell them:
Custom Health & Fitness is the best gym in Napa!! They are open 24 hours, the price is more than reasonable, the staff and members are polite and friendly! They are always adding new equipment, and stay on top of maintenance.

It’s always clean, it’s quiet, and not overcrowded. CH&F is all around fantastic!!


For most of my life, I followed the classic pattern of “dieting my way to obesity.” I’d lose weight, then gain it all back, and more. Every year, it seemed that my weight was at an all-time high. Finally, I decided I wanted to break that cycle. One of my fit friends referred me to John Stewart. We started working out three times a week. John designed a manageable workout program that gave me results almost immediately. Pretty soon, I noticed how much better I felt and how much more energy I had. My once-tight clothes had become loose. As we continued the workouts, little by little, John taught me how to change my eating habits. The more I worked out with him, and the more I took his advice about food, the more weight I lost. No crazy diet plans, no food diaries. He gave me a realistic workout program and sensible nutritional advice that I could follow.

And it worked! Since I’ve been training with John, and thanks to his advice about food, I’ve lost 34 pounds. Today my worst problem is that it’s tough to get dressed in the morning because all my clothes are too big! Not only have I lost weight, I’ve developed that lean, defined look I’ve always dreamed of. John Stewart showed me how to accomplish what I never thought was possible. Thanks to John, for the first time ever, I can say, “I love my body!”


I have been a client of John Stewart for three years. I have always exercised and have had several personal trainers over the years. John’s extensive knowledge concerning exercise techniques and nutrition has given me an excellent program to follow. I am very pleased with the professional training I receive. I would highly recommend John to all those interested in improving their overall health and fitness level.


The trainers at Custom Health & Fitness are very professional. John and Danielle are the trainers of this gym and are also husband and wife. Their hearts are very into making sure you get the most out of your program. You can also tell that each program is specialized and specific to each person. They both seem very dedicated and want you to succeed with your goals. I would definitely recommend this gym to anyone who wants to achieve and succeed at something they never thought was possible.


I would like to take this time to tell you how great I feel as a client in your personal training program. Having had personal trainers in the past, as well as participating in a body building show, I have a perceptive of quality. Your attitude and enthusiasm toward fitness are so motivational towards success. Your skills can be easily applied to a variety of fitness scenarios. Our muscle either develops or deteriorates throughout our life. I have personally experienced your ability to grow muscle in a 50-year-old body. I would highly recommend your services to anyone seeking a better quality of life through improved health.


I am going to be 72 this year and I knew I needed to do something. I have been coming to Custom Health & Fitness since January and have seen and felt the effects it has had on me. I have gained muscle, lost weight, and even become FLEXIBLE!!! I know a big part of my success is from the motivation from other members and the personalized attention from the excellent staff. Custom Health & Fitness has taught me that there are “No Excuses” and has helped me create the healthy lifestyle that I have always wanted.”


He is always positive, always encouraging, just a great motivator,” says Blair, a nurse at the Department of Veteran Affairs at Mare Island. “I feel so good. I’ve done a lot of work, but John was the motivating factor. I would not be exercising if it weren’t for John… He spots me to make sure I’m doing things right. I can’t praise him enough. He’s very much aware of what’s going on. He doesn’t just walk off and start doing something else. Not only is he a good person, he is very good at what he does! His goal is to help people and make them feel better about themselves. His gym is spotless. It’s immaculate. He always makes sure that the equipment is cleaned and wiped down. It’s like it’s brand new. It shines. (Even) the bathroom is spotless. It’s a very classy place.


Three-and-a-half years ago at age 57, I had emergency surgery for a life-threatening illness. Three weeks later, I left the hospital with a walker–my muscles were barely functioning due to the extent of the illness and the length of time in a hospital bed. At the beginning of 2004, I started working with a rehab trainer and continued for two years at which time she told me I was ready to move on. By chance, I saw John’s ad in the Napa Valley Marketplace and decided to call him. I started working out with John twice a week, making lots of progress and enjoying it! I said “working with a personal trainer is terrific” so many times that my husband decided to try it! The story continues . . .


After my wife, Nancy, impressed upon me for at least 6 months how much I might benefit from John’s personal training, I decided to give it a try—particularly since I was in my 2nd> year of a chronic and very painful groin injury I sustained at age 62 and that medical professionals had not been able to cure.&nbsWithin 3 months of John’s carefully prescribed stretching and strengthening exercises, my groin problem has faded away. As a bonus, I am also now physically able to do many activities painlessly—activities that had become too uncomfortable to endure. I thought this was just the inevitable effects of aging, but to my surprise it was reversible, thanks to John.

Always Clean, Always Affordable

Custom Health & Fitness is the premier brand for health clubs and ultimate fitness center destination in the Napa Valley for quality health club memberships, and personal training.  We have a great team to make sure that you achieve your ultimate fitness goals. Enjoy state of the art equipment, the cleanest health club environment around, and AFFORDABLE membership pricing!