Great quality of work . Good service . Everything went well . And great value for your money . Get…read moreyour alternations done here .

I typically go to a tailor in corona but was looking for someone closer. I will keep making the…read moredrive to corona because this tailor was over priced and my pieces seemed hastily done :/ 2 of 5 of my articles of clothing didn't even seem to have actually been tailored.

I honestly didn't think my clothes could be saved, but Express Alterations proved me wrong. I…read morewalked in with a pair of pants that fit like they were designed for a completely different person. They were too long, too baggy, and somehow made me look both shorter and wider at the same time. After bringing them to Express Alterations, they came back fitting perfectly. It felt like I had a brand new wardrobe without having to buy anything new. The staff was friendly from the moment I walked in. They listened to exactly what I wanted and somehow understood my confusing explanation of "make it fit better but not too tight but also not too loose." They were professional, patient, and clearly knew what they were doing. I left feeling confident that my clothes were in good hands. The turnaround time was also impressive. I expected to wait forever, but they finished much faster than I thought. When I picked up my clothes, the quality of the work was amazing. The stitching looked great, everything fit perfectly, and there wasn't a single thing I would change. It honestly looked like the clothes had been made for me from the start. I brought in one item expecting a simple alteration and left feeling like I had received a full makeover. My friends even noticed the difference. One asked if I had lost weight. Another asked if I bought new clothes. Nope. It was just Express Alterations working their magic. The prices were fair, the service was excellent, and the results exceeded my expectations. If you have clothes that don't fit right, don't throw them away and don't let them sit in your closet collecting dust. Take them to Express Alterations. They turned my fashion emergency into a success story and probably saved me from wearing badly fitting clothes for the rest of the year. Five stars. I would definitely come back again, especially the next time I accidentally buy the wrong size and convince myself it will somehow fit when I get home.

Extremely overpriced for simple alterations…read more First impressions: unorganized, smelly, and unwelcoming. I was quoted $50-$60 to shorten my graduation dress by about 4 inches, which felt outrageously expensive when I paid $35 for the dress itself. While giving me the quote, she mentioned that the dress was white. I found that odd because I didn't understand what the color had to do with how much length I wanted taken off. I can only assume she thought it was a bridal dress and expected me to pay more, but either way, it was a no-go for me. Another issue: I wasn't even able to try on the dress while she was giving me the quote, so I couldn't see how much length actually needed to come off. It turned out to be 7 inches, so imagine how much I would have been quoted! Thankfully, I found a little gem on Riverside Drive where I'm getting it altered and pressed for $25. Save your time, folks.

I've been here a few times since 2019. From what I can recall,…read more - Spring 2019: I needed a few adjustments for my graduation dress. Needed to tighten the waistline and I also wanted to trim the dress length so it'd reach the top of my knee - Late October 2025: I got my Maid of Honor dress altered here! Unfortunately, I had very vague ideas of what I wanted. No more than 10 mins on the fitting platform and this gentleman was able to piece together alterations I was extremely happy with when I had to wear this dress less than a month later. - April 2026: I got 2 of my new trousers hemmed here. I had pants from Banana Republic and Aritzia that fit well for my waist, but I needed to shorten the length for the pant legs. Although there's a bit of a language barrier, this man is extremely talented and a local treasure to the Diamond Bar community. I no longer live in the area, but he's worth the drive from the South Bay for PERFECT alterations. Most places have drastically increased their rates because of the pandemic, but I've never quarreled with the owner of Diamond Bar Tailoring. Fair prices for absolute phenomenal work!! He may not have the 5-star rating on Yelp he did back then in 2019, but he's always been consistent and great with managing his time/customer expectations. I have a deep respect for his craft and genuinely give him a "10/10 a would recommend."

Always fast and always accurate! I like this friendly tailor. I don't know where he falls in the…read morecategory of prices, but I feel when it comes to clothes, you pay for what you get. His prices maybe high, but he is good! My pants come out fantastic and suit jackets sleeve lengths are spot on.

This place is wonderful. Great prices, quick alterations and friendly service. Highly recommend…read morethis place, they got my clothes done in 1 day while all the competitors said it would take at least a week

I found Jean Alterations on yelp and took my bridesmaid dress to her to have the waist taken in…read more Jean was very sweet and stated she can have it completed in 2 hours. When I returned I was devastated by her finished work. There are now two crooked lines going down my dress. Jean stated because my dress has 3 layers and hard to access areas it was difficult. She offered to take out the stitching, but I knew the dress wouldn't look the same because it's chiffon. I just wish she told me upfront that she was unable to do it because now I have to shop for a new dress. I would highly reconsider going to her business with formal clothing.

Mariana and team are the BEST! I had a very important…read moreupcoming event and needed tee's and aprons with our logo on them. Mariana made it happen. They added an embroidered patch that looked amazing on the aprons instead of the logo that was best for only tee's. Excellent quality, service and turn around. The cherry on top was that Mariana and her husband were so kind to come out and support my event. Threadworks has a customer for life. Thank you.

I called this place a few times and left messages twice with very specific questions and contact…read moreinfo. They just never bothered to call me back at all.

A tailor that is quick and reasonable. I had a long silk dress that needed to be hemmed 3 inches…read more Plus it was backless and the clasp was a little tight, pressing on back fat. My tailor added a stretch band hook clap and my dress fit perfect with no back fat showing.

5* quality work I went from a size 3X out, and Maria brought my clothes down to a medium fitted…read moreEuropean style, which never thought I would ever fit in my life.

My niece got married last weekend and after searching high and low for a dress, I finally borrowed…read morethe perfect dress from a friend only to discover 5 days before the wedding that the zipper needed to be replaced. I took it to San Dimas Tailor and, upon seeing my desperation for getting the dress repaired, they went above and beyond and had the dress repaired and ready for pick up the day before the wedding. San Dimas Tailor will be my go-to and highly recommended tailor from now on. Thank you so much San Dimas Tailor.

I've been going to San Dimas Tailor for a couple of years now, and they consistently do great work…read more I've had everything from dresses and jeans to blazers tailored here, and I've never been unhappy with the results. Everything always fits the way I want it to, and the quality of the work has been really consistent. Appointments are a must before coming in, so definitely make one ahead of time. Parking is also super easy, which is always a nice bonus. I'll definitely keep coming back whenever I need something tailored!

The owner and his wife are always friendly and gracious. My clothes are always perfect and on time…read more I definitely recommend this family ran business.

Brought some pants in to be altered. After about 3-4 uses the hem came off and when I asked if…read morethere's any kind of guarantee on their work the man at the cashier said with a snotty demeanor "this isn't a car dealership we don't do warranty". Wasn't a big deal to me, there's PLENTY of dry cleaners/alteration shops but it's the way they avoided accountability. Hope this helps!

I needed a bridesmaid dress within 48 hours, called and was told no problem, bring it in! Dress was…read moredone for me within 24 hours, steamed, packaged nicely, and altered beautifully. Such amazing service and kind owners, super reliable and a wonderful job done! 10/10 recommend for quick alteration services

Z-Express is incredible! I was in a total bind and needed a dress shortened for a wedding in under…read more48 hours. They immediately told me "no problem," had me come in right away, and finished everything in less than 20 hours. They even steamed and pressed the dress, which was such a nice touch--it was completely ready to go! I'm so grateful for their help and will definitely be back. Highly, highly recommend!

Jacket was much too big after purchasing it online, brought to Couture cleaners and owner/lady did…read morea FANTASTIC removing excess fabric in arms and length. She is very skilled ...also brought shirts for dry cleaning that came out well, and her pricing was fair. Also automatic texts, when your item/items are complete is convenient.

Shirlin took care of my alterations (pants hemmed) and jacket sleeves shortened) in short order…read more She also did a nice job with my husband's shirts. I appreciate her kindness and excellent work.