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

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

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

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

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 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

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

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

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

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

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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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

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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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

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

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

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

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.

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

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 know big box stores are under huge pressure to de-skill workers and reduce workforce, but today was a bad enough service experience that I will reduce my business with Costco. Monday morning, huge lines halfway back to the end of the store. I was in self-check. At one point, I scanned an item ans it signalled a problem. The Costco minder came over and put them item in manually and righted the system. I finished up and paid. Zero help with heavy items. On my way out, the checker at the door realized a cheese hadn't rung up. I had to wait like a criminal at the door until a guy came up with a scanner. I thought I could pay for the cheese that the minder had not successfully entered, but no, I was supposed to go back in the store and wait at the back of another line with a cart full of things I had already paid for. Presumably, I would have to have everything refunded and re-charged to my card and spend the better part of an hour for a cheese? Come on! Costco can do better and hire more people. 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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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

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

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

The employees at this Costco are rude! It starts at the entrance and continues to the register. My brother had his leg amputated about 6mos ago and recently had a triple bypass. I pulled up in front and helped him out of the car to get a mobility scooter, unfortunately there were none at the entrance so he asked the lady who scans your card at the entrance if she could ask one of the Cart Attendants to retrieve one of the scooters from the parking lot and she told him that is not my job! We had to wait 30mins for a mobility cart to be returned with no help from employees or manager. Everytime I go to this Costco the Cashiers have no help to box items in your cart and are rushing to the next customer while I am still loading my own cart and annoyed and rude that I'm taking too long! Am I the only one that experiences this poor Customer Service ?! Also my last experience at the optical dept was terrible, the employees are rude and unhelpful. It is worth my time to drive to the Costco in Rancho Cucamonga on 4th street for better Customer Service! read more

The gas station guys are creepy. They walk around looking into windows at drivers. They stop next to places where women are getting gas. They try to look busy, but are doing nothing but leering. read more

I was trying to get a membership at Montclair location today at around 10:49am but system apparently went down. I asked a kind female employee who was at the exit area checking receipts if she knew when the system would get back up. Mind you, none of us customers were yelling or complaining at this time, we were like oh shucks. The female employee asked her male coworker with glasses who was at the membership area and he was very snarky responding to her with, "I'm not corporate." I felt that was very unprofessional of him to speak like that to her in front of customers and he could have been nicer with his response such as "No sorry, I'm not sure when the system will get back up again, I apologize for the inconvenience." The female employee even apologized to me but it was her coworker that needs to be retrained on how to speak to people especially with the tone he used. read more

I try to come here early right when they open if I want to avoid the lines. I like that this location is close and convenient to me. Gas lines are not too bad, weekends, do get pretty busy. read more

Food court employees are always yelling at people like they are scolding a bunch of 3rd graders. They need better signs. If you want 2 lines, then add a sign "Two lines". Today I got yelled at because I was in the cash line and not the prepay line. There were NO signs to distinguish between a prepay line and cash line. Stop yelling at your customers! read more

made a phone order for two whole pepperoni pizzas and the worker told me it'll be about 10-15 min. I thought it was weird that they didn't ask for my number or name for when I get there but it's my first time doing a phone order so I just said okay. I get there and wait at the pizza window for 10 min and the guy comes up and I tell him that I called 20 min ago for a phone order and he tells me I have to go wait in the regular line and order there and then wait for the pizzas at this window. I get in line already annoyed because I spent 10 min waiting in this line and then spent another 15 waiting to order and then another 10 min to wait for the pizza. Overall annoying experience ordering over the phone, you wait the same amount if you were to just order here so I recommended doing that read more