I was with my 84 year old mother and bought 4 cases of water along with other items. The 2 young men in the parking lot who were collecting the carts offered to help us load our items. They were so kind and helpful. I really appreciate them. Sorry to say I forgot their names. Saturday, June 20th, approx 6:45pm read more

Come to Costco often for things! Found some things for our new place recently & will probably come back to get 2 TVs we were checking out! Parkings a little crazy at this one but we just park in the back to try to avoid the chaos lol The gas lines are always super long & ridiculous but hopefully one day I'll be able to get some gas at this one! Food court food always is yummy & affordable! Pizza & hot dogs are a go to for us (: recently tried the new strawberry banana smoothie & it was delicious! I feel like it's way better than the Berry slushie they replaced. Will be back soon(: read more

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If you don't arrive right at 10 AM, there might not be a cart available for you at the front, so you might want to take one from the return area areas near to you in the parking lot. Always lines at this Costco, because it is so popular. The people offering samples are always very nice. The Costco staff are helpful and efficient, especially at the cashier lines. The reason I gave a 4/5 rather than a 3/5 is because of Emily and Rick at the optical department. They are very patient, helpful, informative, and always try to look for a way for you to save money, whether it's asking about your insurance, or looking for rebates. read more

Costco Wholesale - Succulents and calla lilies! - Wholesale Stores Near Me - Montclair, California

Hailey was working at the pizza pick up window and was extremely helpful and quick thinking when I lost my order receipt for 4 pizzas... can't beat the price and great customer service at Costco, open my Costco app and already had plates and condiments ready to go wrapped in foil! read more

Costco Wholesale - Pizza - Wholesale Stores Near Me - Montclair, California

The service sucks. I never like to write reviews but this time I must I had called to make sure they had a product they said they had plenty so I drove 45 minutes for nothing . They didn't have anything and then guest service asked me to get with a floor supervisor which I got with a bald one with glasses who was such a rude person idk how he even got his position and basically wasn't helpful. I truly am disappointed next time I'll just stick to my closer Costco instead of making the drive to this unpleasant place. read more

Stopped by for a quick lunch yesterday (Saturday) afternoon and found out they have a new item at the Costco Food Court, the strawberry lemonade! Standard Costco service. Line moved at a reasonable pace despite it being a busy day. Ample parking. Loved the samples. Overall a great experience. Nothing beyond expectations, but I'm always a fan of Costco. read more

Costco Wholesale - Food court - Wholesale Stores Near Me - Montclair, California

Austin at AT&T. Was so helpful and very friendly. I was asking lots of questions and he knew it all. He was patient with me. Truly appreciate his willingness to help me and how friendly he is. Thanks Austin AT&T. The cashier was very nice at the checkout. read more

The only person I need to complain about is cashier Hilary R (OP:6) I find her very racist towards me giving me attitude cause I refuse to donate so she can ring her bell. I've never had an issue with this location before and "we're watching you on camera" which was weird! Some people take their job too seriously when they can get replace the next day. read more

Well turn you chicken over. Raw chicken. Feed the breast to my kid. it look okay but didn't fall apart like usual the. I took the whole chicken out that when I notice the bottom was squishy read more

Costco Wholesale - Raw chicken. - Wholesale Stores Near Me - Montclair, California

There's employees with great ATTITUDES!! employee name was Jacklyn R OP#:52 She was assisted with another employee but her name tag was turned over but she had a ponytail hair was dark brown wearing a black and white three striped long shirt. Rolling their eyes and whispering. I'd recommend teaching employees how to be respectful. Including the lady with the named tag that was turned around threw stuff across the register. Unbelievable. read more

Staff at the tire center and battery center are rude. Would not honor battery warranty. They do not honor appointments.

I just had a very unfortunate experience at this Costco.. after a situation involving a violent and racist customer, the manager Dario approached me as if I was the aggressive person after I asked to speak to a manager. After asking for a different manager he lied and said he was the only one. Another manager was very kind but couldn't resolve because Dario refused to help. I hope corporate can help because I feel unsafe at this location. read more

I recently had a very negative experience at the Costco Montclair location on 10/11 by the receipt checker named Sheryl. Everyone person in front of me was waved on through without a glance to their items but Sheryl stopped and went through every individual item in my cart. Sheryl was cold and rude, being a person of color I felt very racially profiled and embarrassed. I work so hard for my money and after spending almost $400, actions like make me feel sick. Do better Sheryl! Just because my skin is dark and I'm covered in tattoos doesn't make me any less of a person than anyone else in your store. read more

Sometimes I come to this Costco in Montclair and I have noticed that the employees here seem so much nicer than other Costco. I feel like this location has a ton more snacks and other items that I don't usually see. Also, they have a lot of people who are giving free samples of many different items. Usually, I come here during the afternoon and even at that time there are a lot of people but one thing is that they have a lot of cashiers ringing up people. Also nice to walk around and just see what is on sale and what you might need for the house, office, or just for a kid's birthday! They even sell pet products and food for cats, dogs, and even bird food! read more

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Been to this Costco in the past and happened to be in the area so I'm back. Nothing special except I was actually amazed that I was able to drive in and get gas with very little wait. The store was clean and the employees were nice. Can't complain that I received the standard gold member service today. read more

11/24/23 Today's haul : made out like a fat cat! This is our "new" neighborhood Costco, which essentially is closer to our new place (compared to our Lakewood Costco)--I could literally walk to it, but hauling stuff home would be a mission w/o a vehicle lol. Been meaning to get the metal/alloy trash can for our kitchen & I'm glad I waited coz now it's actually $20 cheaper AND I have gift cards to use! Major SCORE. Last week it was $100 & I had planned to get it using my gift card but i didn't have it on me at the time. Definitely need the anti fatigue mat for the kitchen by the sink, Got it & it will match the floor color, too. Then a 6 foot folding table for $48 (usually $60) was too good of a deal to pass up! Everywhere I turned there were items on sale that we would definitely need. I had to muster up the courage to walk away before I bought more stuff. For Black Friday, it wasn't as crazy as I expected. Great shopping experience! read more

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My favorite place to shop and where I get all my prescriptions filled and by gas. In fact, we plan all of our driving vacations around Costco gas stations. read more

I called multiple times to try to place a pizza order in advance. The phone keeps ringing and timing out when calling the food court extension. I then tried calling the admin staff to ask about the wait times and even that extension timed out. I've never had experienced this with any other Costco. Hopefully it's just bad luck and no one else has experienced this... read more

What kind of circus is being ran there? My son had an interview and they had scheduled him at 5:30. He went whoever was gonna do the interviews left never even an apology so they called him to do a second interview today on August 29,2025 he was waiting there more than an hour. He asked and people were just like what interview what are you talking about? 2 times he was scheduled for a interview and the store manager never showed up. I think the store manager needs to be fired. This is very unprofessional. How did they even become a manager of the store if they're doing this to would be employees read more

Professional, Friendly and very Helpful!!! Had Most of the items on my list. Was able to charge our EV while shopping which ess Very Helpful!!! read more

The pharmacy at this location is ridiculous! Every time I have to get my dogs prescription it takes forever. While they're super nice and professional I don't understand how or who is the fuck up. This point it's on me. This issue has been going on for two years! read more

I just wanna give a big shout out to Jaiden, Genise and Adam, (night merchandise crew )as well as the rest of the staff at this Montclair Costco. Not only am I a vendor with them a long, long time member as well as Deal many times with the buyers in Issaquah for different product lines. This store has to be one of the best when it comes to treating their members and vendors with the utmost care and consideration. often we see of course employees can be kind to their customers, but this is behind the scenes when I got to see the staff in action and they were amazingly professional, courteous, and kind. Thank you so much for making me feel so welcome and doing such an amazing job helping with my product line. read more

Have always came to this Costco with my family, but today was a horrible experience. A lady working there named ZINA, in the clothing section was extremely rude to me and my dad who is an older guy and also multiply other ladies were standing with us waiting for her to help out but she was too busy being loud and rude with a horrible tone. And we had people who came up to us that witnessed it after and all said she should be reported. Very rude lady. Zina should learn how to have costumer service or don't come to work at all. We all have bad days but don't bring it to work and take it out of Costco customers. Zina made our experience today very uncomfortable, no one should work with that attitude. read more

Patrick s needs more customer service training. No hello, no thank you. Just an alright man.

I've never had an issue with any Costco employee before, but my experience with Jaimie at the Montclair location at self check out. He was very disappointing. His tone and attitude, eye rolls, were rude and unprofessional -- completely unlike the usual patient and helpful service I've always received here. Very poor customer service. Other than that employee; every other employee I've ever encountered has been kind and I've never had any issues at this store. read more

What's the point of arriving a little before 9am. Opening 15 minutes late. So much for opening at 9am for executive members.

Their food court has a phone number to call orders ahead of time, but nobody answers the phone. Is like is off the hook on purpose. Then they make you wait for a while because your order is not ready, even though nobody is waiting ahead of you. read more

I visited this Costco today for the first time in 11 years. It is horrific. I could spend an hour recounting what we endured there, but I left the place with a severe headache and a desire to do nothing else except to warn people. Everything that could have been done wrong was done wrong. Also, there is a fine line between "team spirit" and being so egregiously arrogant as to alienate customers for life. The cashier we suffered was one of these. Her name badge says 1991, so I guess she is doing what they want. I only give two stars because of the good prices on bulk quantities of quality products. It is not enough to bring me back. I would rather pay more money to not deal with modern Costco nonsense. read more

Came to pick up a few items for the house. There is plenty of parking. From 10:30-12:30 there are samples throughout the store.The line to pay was a bit long but it moved fast so I didn't wait long . I paid $ 3.99 for the chicken bake. Pizza slice $1.99 and 0.69 cents for the drink . What a deal and the customer service was great! Can you also order the pizza before hand so when your done shopping it will be ready. read more

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We ordered a sheet cake from the bakery and picked it up the next day, with inscription. They don't display the sheet cakes any longer, just the rounds. But we had a larger group and I remembered that we can order one. We did the vanilla with cheesecake mousse. The price is right. This Costco location is often busy and hard to park, but I was able to gas up without much of a wait after 4pm. This location has a few more things than the one closer to me and I picked up a huge jar of capers for only 7-8$. I have many go-to items for Costco such as garbage bags, olive oil you can trust to be good, dog food, Better Than Boullion, avocados, cheeses, eggs. I just picked up 4 plastic serving bowls with lids for summer potlucks and BBQ's. Vitamins are another item I buy on sale. Wines can be a bargain. Bought a pool float chair recently too. I just can't buy all the condiments I'd like because the quantities or sizes are too big. Same for meats and fish which is sad. read more

This review is strictly for the Costco food court... Today, I hosted an event at work and pre-ordered over 100 hotdogs. We called in the order about 3 days or so ago, and stated what time we would pick them up. When I arrived today, the friendly staff directed me where to wait for the hotdogs, and they arrived shortly right after. The coolest part was that the hotdogs were placed in a tin, and the buns were totally separate so they didn't get soggy. Genius! Also, since Costco normally gives you a soda with the purchase of a hotdog, we opted for cases of water instead. I mean really, how would we get 100 sodas back to work...lol! All in all though, the ease of getting Costco prepared hotdogs for our event was a great idea. Easy to get, yummy, and everyone loved them! read more

They changed their policy of just renewing your membership at the register. Instead they want to make you wait in the customer service line to renew there, just so they have the opportunity to upsell you or push their credit card on you. Although signs throughout the store still say you can do it, I got a lot of attitude for not wanting to wait in the long customer service line to renew. Costco use to be very big on customer service. They use to pride themselves as a company on it. Bigger parking spots so you're not cramped, long gas pumps so it didn't matter what side your gas tank was on, one of the best return/exchange policies. But apparently they don't give a shit anymore. At least that's the impression I got from this location. Very sad, but when my membership is up, I will likely make the switch to Sam's. read more

Bad customer service in the food court the s lady's did not give me a new clean cut cheese pizza and I asked her to give me a new clean cut cheese pizza she said that they can't give when they were still making new pizzas at that time when I asked for a new clean cut cheese pizza read more

This Costco is really good with moving the lines quick because they are always fully staffed despite being super busy. However recently the food court and gas line have been mismanage and out of control. Don't order a large pizza and a sundae because they will make you line up on the side and the normal line specially in super long peak time. Otherwise you Sundae will melt before you get your pizza or the pizza will be cold waiting for your sundae. I brought that up with the supervisor Andy. Food court staff allows people to argue inline because they won't remind the members there are three lines instead of one. Members don't seem to understand each window has a separate line painted on the floor. As for the gas pumps the turn in sign use to be far enough to allow traffic not to congest Central ave. Now the sign is immediately as you turn into the parking lot. So now pedestrian, cars and traffic are negatively affected. What's going with this Costco? It's summer temperature runs high I won't be surprise if people gets into heated argument at Costco. All can be avoided if management can take a little notice. read more

Avoid this Costco. It's always jam packed! It's probably why the cashiers aren't very friendly. Oh and do not even think about going to the tire department unless you can drop off your car for the whole day. I took my car for a flat repair and it was a couple hours!! They are not friendly either. Next time I'll drive further out to the Glendora Costco it's much better. Lesson learned. read more

Costco Wholesale - Costco tire shop at the Montclair location. - Wholesale Stores Near Me - Montclair, California

Can't beat the Price for a Fast Meal, it's Extremely Packed cause it's a Sunday and Costco seems to have everything still intact, i prefer this location than any other. Thank you Costco read more

Costco Wholesale - Hotdog & Drink - Wholesale Stores Near Me - Montclair, California

Very poor customer service at the Montclair, CA tire center. I had an appointment and still had to wait 15 minutes before anyone acknowledged me. The employee I dealt with was rude and argumentative, making the whole experience frustrating and unprofessional. The waiting area smelled strongly of rubber fumes, and there were customers bringing in dogs, which made it worse. I ended up canceling and going to a different Costco location instead. I do not recommend this tire center. read more

Nice place. Service was good. Good selection. Value was great. Pretty cool place for grocery read more

Costco Wholesale - #seedweed - Wholesale Stores Near Me - Montclair, California

Always had a pleasant time with any worker here. But today at 12:50pm Lizette in membership was acting tight about adding my cousin to my membership. Saying he needed ID verification that he lives with me when we just moved. It's not that serious, not sure what her problem was, you know damn well every worker here puts their family, friends, etc. that don't live with them on their membership and nobody cares. That was lame, didn't even look like she wanted to help. Just denied, like forreal. read more

Costco is one of the best at providing quality products at great prices, incredible customer service