Costello's Ace Hardware of West Islip
448 Union Blvd
West Islip, NY 11795


Fax: 631-422-5492

Managing Partner:
Scott Douglass


Directions Local Ad AceHardware.comThe Supply Place
Sunday8:00am - 6:00pm
Monday8:00am - 9:00pm
Tuesday8:00am - 9:00pm
Wednesday8:00am - 9:00pm
Thursday8:00am - 9:00pm
Friday8:00am - 9:00pm
Saturday8:00am - 9:00pm


  •  Suncast Sheds

What Our Customers Are Saying

Linda b.Oct 19, 2023

Great store!! Go there all the time ! They have everything! Tonight went there with my Grandson and the young man who assisted us was so friendly and took the time to answer his questions. Made him so happy!! Thank you and God Bless You!!

Paul G.Jun 13, 2023

I love this Ace Hardware store! They recently expanded, but they didn't get too big. If they had, it would have been like going to Home Depot or Lowe's, and that would have defeated the reason I prefer Ace Hardware. I suggest checking out their online specials. They often have great deals on DeWalt tools. I recently bought a DeWalt drill and impact driver set for a fraction of the price I would have paid at Home Depot. The staff at this Ace Hardware store is also very knowledgeable and helpful. They're always willing to answer my questions and help me find what I need. Overall, I'm very happy with this Ace Hardware store. It's a great place to find the tools and supplies I need for my home improvement projects.

Olga V.Feb 26, 2023

OK... kudos to Ace hardware on Union! Today I took my Knives to be sharpened. My cleaver was my father's from 1950's. So I wasn't to hopeful. OMG cleaver sliced through a tomato like hot knife through butter. It was so reasonably priced $7.00 each knife. I have a few Damascus Japanese knives that I am particular with and the Manager sharpened all with perfection. I will never let them go semi dull again. Head over to Ace hardware. Highly recommend. From dull to delightful sharp.

Tai V.Jan 7, 2019

They have everything! Especially those odd household needs that you can't find in the other places. And the prices are reasonable. What's great is they also help you with purchasing and they give you tips on what and how with The Organized Guy!