Jamba

3.8
240 reviews

About

Juice ShopJamba
Jamba Juice Company is a global healthy lifestyle brand that inspires and simplifies healthful living through freshly blended whole fruit and vegetable smoothies, bowls, juices, cold-pressed shots, boosts, snacks, and meal replacements. Jamba blends are made with premium ingredients free of artificial flavors and preservatives so guests can feel their best and blend the most into life. Jamba Juice has more than 900 locations worldwide.

Location

Jamba
16635 Sierra Lakes Parkway, Fontana, CA
92336, United States

Hours

Reviews

3.8
233 reviews
5 stars
120
4 stars
42
3 stars
13
2 stars
13
1 star
45

What are people saying?

AI-generated from recent customer reviews

Customer Service

Many customers reported poor service, including rude staff and long wait times.

Smoothie Quality

While some enjoyed the smoothies, there were numerous complaints about incorrect orders and inconsistent quality.

Operational Issues

Frequent reports of the store being closed during posted hours and issues with online orders.

Cleanliness

Mixed feedback on cleanliness, with some customers noting dirty conditions and others praising the store's cleanliness.
  • DV
    Diego Valdivia
    Dec 25, 2025
    5.0
    Pretty good smoothie.
  • JC
    Joyce Carota
    Dec 1, 2025
    1.0
    Very poor customer service early this afternoon. Staff opened door from break and promptly disappeared from view after pointing to a screen for me to make an order. I couldn't find my usual drink on the screen, looked for her, called out hello, no response. Waited a bit, nobody appeared, so we left.
  • JF
    Jward the Foodie
    Nov 11, 2025
    5.0
    The smoothie selection is strong: Items like the mango-a-go-go,strawberries wild and the açaí bowls get frequent mentions as hit choices. For those wanting a quick healthy (or at least healthier) treat, this Jamba location gives a convenient option in Fontana—a smoothie or bowl works well for on-the-go. Açaí bowls and oats toppings (strawberries, granola) are available and appeal to those looking for something more substantial. This Jamba Juice location in Fontana is a good casual stop when you want a smoothie or bowl and are okay with a bit of variability in service and execution. It hits the basic desire for a refreshing snack/meal alternative to burgers or fast food. Erika was one of the employees and she was super cool and friendly. Made the experience even better.
  • KC
    Kelsey Chambers
    Oct 8, 2025
    5.0
    Keigan Made my bowl custom and it made my day. Thank you :)!
  • FM
    F Moore
    Aug 30, 2025
    1.0
    Order 3 smoothies and received 3 juicees. Not sure what they were blending but it's noway they put ice in it. All 3 were literally just juice. Kids were disappointed. I had 3 so I didn't realize it until we were already back on the road or I would have returned them for smoothies. Given how much they raised the prices they need to train their workers to give a decent product.

Frequently Asked Questions About Jamba

What are the operating hours of Jamba located at Sierra Lakes Marketplace in Fontana, CA?

Jamba at 16635 Sierra Lakes Parkway is open from 8:00 AM to 9:00 PM Monday through Thursday, and from 8:00 AM to 10:00 PM Friday through Sunday.

Does this Jamba location offer delivery and in-store pickup options?

Yes, this Jamba offers both in-store pickup and delivery services for customer convenience.