Nancy Sinoway Tailoring & Alterations Studio has been on Earth since 1975

Through the years we have experienced different focuses in our business from sophisticated tailoring and alterations including bridal, garment restyling, and  one of a kind custom dressmaking.  Our specialty has always been creating beautiful designs for lovely women.

Our main full service design studio is to provide comfortable, reassuring support, during your design process. We are always looking to keep current and create new and exciting pieces. We hope you will follow us and watch our ever- changing creative growth.

We thank you all for your continued support. We are grateful!

Stay tuned.

And most importantly stay well.

With love,


Nancy Sinoway – Designer, Dressmaker, Seamstress, & Fashion Icon


Bridal gowns, veils, mother-of-the-bride dresses… whatever you need for a perfect wedding. Custom designs and alterations.

nancy-sinoway-bat-mizvah alterations

Bat Mitzvah dresses for the whole family. Alterations and custom designs available. Sweet Sixteens, too!


Order Nancy’s fun, unique creations online – available to pick up locally in Port Washington, NY or ship across the US!


What is old is new again. Bring Nancy your old fur, denim, scarves, we can do it all!


Nancy can work magic on those old jeans. 


Nancy’s Denim Bags and Accessories are available to ship nationwide. 

Be Fabulous @NancySinoway on Instagram


“Nancy is a Rock Star in the world of Fine tailoring. Love her!!!”

Joshua Gropper
Managing Partner, Gropper Law Group

“From simple tailoring, to repairing denim to creating the most gorgeous original designs (visit her studio in Port and you’ll see) – Nancy and her team of artisans never disappoint. She’s been my “go to” seamstress for years!”

Randi Yerman

“Nancy took my wedding dress and reworked it to create a 1st communion dress for my daughter. It made me cry it was so beautiful. Now she’s making a dress for my oldest for Pride Prom!
If you don’t go to her…you are foolish. Her attention to detail is impeccable.”

Keri D.

I had a little over a week left before flying out to a wedding and needed a fully-beaded gown hemmed. I didn’t want to entrust it with just any tailor and someone from town recommended Nancy. I didn’t know I needed an appointment but she was nice enough to accept the job and finished my dress days before the event! Total lifesaver!

Raleen C.

“Nancy is a pro and a perfectionist–two traits every tailor should have. She’s also a delightful person. She really knows her craft and how to make clothes fit properly. I learned the hard way that I couldn’t trust any of the local cleaners to do alterations.”

Andrea C.

“Nancy Sinoway took my wedding dress and made me love it even more. She paid attention to every little detail and it just turned out beautifully.-even the ribbon used for my bustle is lovely! I had to go back several times for fittings and I looked forward to seeing Nancy, Smitty and the rest of the caring seamstresses. Who would have thought that this would have been such a fun process? Bottom line is: excellent work done by even better people. I cannot recommend her services enough.”

Meagan M.

Have a Fabulous Day with Nancy Sinoway

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In Memory Of…