Welcome to Summit Strength 24/7 Private Fitness

At Summit Strength, we help you reach your best self—any time, day or night. Our gym is open 24 hours a day, 7 days a week, all year long. That means you can work out whenever it fits your schedule. No waiting, no crowds—just a clean, private space made for people like you who want to feel better, get stronger, and stay healthy. We proudly serve Milford, Amherst, Hollis, Brookline, Merrimack, Lyndeborough, Mason, and Mont Vernon.

Our gym is just for members, so it stays quiet, safe, and focused. We have the newest fitness equipment you won’t find anywhere else in New Hampshire. From machines that build strength to gear for heart-pumping workouts, everything is top-quality and ready to use. Whether you’ve been working out for years or are just starting your fitness journey, you’ll feel right at home here.

At Summit Strength, we know that fitness is about more than just lifting weights. It’s about feeling strong in your body and confident in your life. That’s why we offer personal training programs that are made just for you. Our expert trainers take the time to learn what you need. Then, they build a plan to help you get there—step by step. You’ll get the support, advice, and motivation to keep going, even when it’s tough.

We can help you:

  • Build strength and muscle

  • Improve your heart health and energy

  • Feel better in your body

  • Move better and stay flexible

  • Stay on track with your fitness goals

And because your plan is made just for you, it can grow and change as you do.

Our trainers—Michael, Kelsey, Jen, and Melissa—have years of experience and care about helping people. They understand that every person is different. Whether you're working around past injuries or trying something new, they’ll help you move safely and get results that last.

But Summit Strength is more than just a gym. It’s a place where people support each other. Our members come here to work hard and feel good. Everyone respects each other’s space and goals. It’s a friendly, focused place where you can train without distractions.

You’ll also enjoy extra perks, like clean locker rooms with showers, a relaxing space to cool down or stretch, and even a cozy café area for a quick break or chat.

If you’re tired of crowded gyms, long waits for equipment, or cookie-cutter programs that don’t work, Summit Strength is your solution. Come see what it’s like to train in a private, top-tier gym made for busy adults who are serious about getting fit.

Join Summit Strength today. Find your peak and feel your best—every single day.

Gym owners at Summit Strength supporting adults in Hollis, Wilton, and Brookline with private, results-driven training

Welcome to the Summit Strength Experience