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

631-422-5566

Fax: 631-422-5492

Managing Partner:
Michelle Nathan

12168@costellosace.com

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Michelle Nathan
Michelle Nathan
STORE HOURS
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

SPECIALTY BRANDS

  •  Suncast Sheds
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What Our Customers Are Saying

Rbt C.Feb 18, 2026

We all go to the big box stores, granted I live 4 minutes from each . Seems like when the big box stores are out of stock of certin items I end up at costello's & purchase what i needed

Karin H.Nov 16, 2025

Keep our local favorite stores open! ACE has it all. I have noticed that their pricing has lowered in the past year and they've become extremely competitive. Great service as well. Plus they carry products "Made in the USA". LOVE That!!!

John M.Jul 21, 2025

I made an online purchase for a few items to ship to my usual store I shop at. Ace canceled 1 of the items I assume because they didn't have items in stock. I searched and saw this Ace location had all the items in stock. Called spoke to an Ace associate, confirmed they had items I was looking to buy. Asked if they could hold for me, they said no problem. I switched my items to this location and drove there. Upon arrival all my items were ready for pickup, employees were super nice and helpful and helped me load my car. Ace always goes above and beyond for their customers.

John M.Dec 10, 2024

This is a great place to pickup screws for modern bicycles. The M5 screws (see photo) are what you're looking for in that case. Like any other Ace Hardware, you can describe what you're looking for and any employee can either take you to where it is or tell you where you can find it.

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!