LightenUp® Fitness

Inspired by a modern Norwegian style with a private, small, comfortable atmosphere. LightenUp® Fitness is where you stay focused and energized while reaching your goals and achieving results.

What makes us different? We offer a limited quantity of memberships to ensure you never have to wait for equipment or walk a mile to get to the entrance. This also allows us to keep our group classes small and personalized. If you are looking for a premium experience, look no further.

NO SIGN UP FEE AND NO CONTRACT!  Contact us to schedule your tour. Plans start at $39 a month for 24-hour access to LightenUp® Fitness. Also, you can add unlimited group exercise classes for an additional $40 a month.

About Us

Located in the SE block of I-25 and 144th in Thornton, LightenUp Fitness offers easy access to a workout facility for those that are seeking for an alternative to the atmosphere of a big box facility.

Focused on providing a comfortable workout environment, you will find the facility, staff and membership welcoming no matter what your fitness level or experience is.

The Facility

Open 24 hours, 365 days a year with convenient, safe parking, you are able to exercise when you want on a variety of new, clean cardio and strength training equipment. Towel service is included with the membership, as well as access to individual locking shower room for ultimate privacy.

This facility is meant for those who do not want to battle the crowds but want a more private and exclusive experience.

With an upgraded membership, you will be able to have unlimited access to LightenUp® Fitness Small Group Fitness Classes.

Our membership is month-to-month, which means you do not have to feel trapped in a contract.

Members’ Reviews

I have been a member since November 2015.  Lighten Up is a well maintained facility with a lot to offer it’s members.  To mention a few –  personal trainers, group classes, on-site presentations to  enlighten members, outdoor group activities, and more.  Both staff and clientele are friendly, encouraging and personable, working together to obtain a goal.  The atmosphere is more like a ‘fitness family’.  I really enjoy the workouts and convenience of 24 hour availability. – Mary

I love this place! It is everything I have been looking for in a fitness center.  The group classes are awesome.  I feel totally comfortable working at my own level.  The staff is great and the place is very clean.  I highly recommend Lighten Up Fitness! – Lucia

Excellent service! Great facility and community! The staff and other members are so sweet and supportive! – Kate

LightenUp has given me the motivation to be more healthy in what I eat and what I do physically and emotionally.  With the help of my coach and the wonderful instructors, I have lost over 20 pounds! – Holly

Lighten Up Fitness has a great facility-easy access, great lay-out, just come in grab your towel and go-it’s all there. The equipment, exercise rooms, and environment really make you feel comfortable and confident about getting started and coming back, no matter what your fitness level. It’s the people, however, that make the Lighten Up Fitness experience like no other. The team is great-warm, friendly, supportive, but also direct, open and clear about what you need to do to accomplish your goals. The encouragement and camaraderie keep you coming back! – Vernetta

Contact Us

If you are interested in learning more about our facility, please complete the form below or call us at 720-744-2789.