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Find Addition and remodeling pros in West Islip

Avatar for Greg Home Improvement, Inc.
Greg Home Improvement, Inc.
4.7(
86
)

Serving West Islip, NY and surrounding areas

Approved

In business since 1997

Free estimates

Warranties offered

"Greg & his team did a wonderful job on my renovation project, with exceptional marks for honesty and communication. Pricing was fair, and there was always confidence in the work itself: it's clear that Greg brought a tremendous amount of experience to the project, and he consistently ensured that work was done correctly (down to every last detail). I could not ask for a more reliable and honest person to deal with! Additionally, the scope of work changed on our project due to additional requests we had (our decision to re-do walls, install new lights, etc.) yet there was never any worry or concern on unfair pricing. Greg gets five-stars, and we will definitely work together again in the future."
LIVING/DINING/KITCHEN IN PROGRESS
LIVING/DINING/KITCHEN IN PROGRESS
LIVING/DINING/KITCHEN IN PROGRESS
LIVING/DINING/KITCHEN IN PROGRESS
LIVING/DINING/KITCHEN IN PROGRESS

+101

Recommended by96%of homeowners
Avatar for Classic Remodeling Group Inc
Classic Remodeling Group Inc
4.7(
67
)

Serving West Islip, NY and surrounding areas

Approved

In business since 1947

Free estimates

Warranties offered

"​I cannot say enough good things about Classic Remodeling! They recently completed a major project at my house—replacing the siding, fascia, and gutters—and the transformation is absolutely incredible. ​From start to finish, the team was professional, detail-oriented, and efficient. They didn't just fix up the exterior; they made my house look like a completely different home. The curb appeal is amazing now, and the quality of the workmanship is top-notch. If you are looking for an honest, skilled remodeling company that delivers outstanding results, look no further. Thank you, Classic Remodeling, for a job beautifully done!"
18 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for Arthur DeRosa Building and Remodeling
Arthur DeRosa Building and Remodeling
4.7(
13
)

Serving West Islip, NY and surrounding areas

Approved

In business since 1986

Free estimates

Customers say: True professional

"Arthur gave us a fair and competitive estimate and was able to start work quickly thereafter. He and his team did an excellent job gutting and totally remodeling two bathrooms and a closet as well as redoing some of the wood flooring, moving vents, and moving hallways. Arthur himself was at the home everyday and did the important work himself. He also went the extra mile in helping us with small projects around the major project as they came up. He was extremely responsive in provided us with timely updates. When complications occurred (due to the house having not been renovated in 40 years) he was clear and helpful in keeping the project on schedule. He was extremely honest and I trusted him to be alone in my house for weeks on end with his team. I would/plan to work with Arthur again in the future for my home renovation projects."
Additional Photos
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+20

Response time2 days
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Alta Renovations Corp
Alta Renovations Corp
5.0(
28
)

Serving West Islip, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Warranties offered

"Jose Is a fantastic choice for a remodeling job. He fully remodeled my kitchen and first floor including moving walls and installing new hardwood floors. Not only are his carpentry skills exceptional but he also has an eye for detail. He is meticulous and finished each project to my high standards. Jose is a great choice as he has the skills and knowledge to fully complete any job from demo to finishing and painting."
Additional Photos
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Additional Photos

+26

Response time8 hrs
6 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Stars and Stripes Home Improvement LLC
Stars and Stripes Home Improvement LLC
4.8(
313
)

Serving West Islip, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Emergency services offered

"U.S. Home remodeling did extensive work on a total remodeling of our home. From the start to finish, they were always courteous, respectful and thorough. The quality of their workmanship was excellent throughout. I highly recommend them for all of your projects."
Remodeling - Kitchen & Bathroom Project
VEGA KITCHEN
Painting - Interior Project
Complete Renovation
Basement

+699

Response time3 days
8 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for BuildingLI.com - BLI Facilities LLC
BuildingLI.com - BLI Facilities LLC
5.0(
32
)

Serving West Islip, NY and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"I hired Long Island handyman construction group to remodel a 400sf basement and bathroom in Melville. They were priced in the middle compared to other bids. I picked them thanks to their out of the box advice which saved me thousands of dollars. There was one problem with the plumbing which cost an extra 1800 dollars. The owner settled with me 50/50 even though it was a pre-existing issue. The project was started early and completed early. All mess was cleaned up and the crew was very friendly and fully aware. Very reputable guys and very easy to deal with. Thanks Moises and Eddy."
before demo
kitchen demolition
demolition complete
kitchen tile job in progress
kitchen tile

+172

Response time7 hrs
Recommended by76%of homeowners
Avatar for All Island Additions and Renovations
All Island Additions and Renovations
5.0(
20
)

Serving West Islip, NY and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"All Island Additions & Renovations did an amazing job on our dormer project. The whole experience was smooth from start to finish. They were professional, honest, and always on time, and the quality of their work really shows. The new second floor came out beautiful solid, clean, and exactly the way we wanted. It feels like a brand-new home now. I would definitely recommend them to anyone looking for a reliable contractor for dormers, additions, or full renovations."
Before
After
Kitchen remodel
Bathroom remodel
Bathroom remodel

+71

Response time1 day
Response rate100%
Recommended by81%of homeowners
Avatar for Jag Construction & Maintenance Inc.
Jag Construction & Maintenance Inc.
5.0(
22
)

Serving West Islip, NY and surrounding areas

Approved

In business since 2020

Free estimates

Customers say: True professional

"Walter from Jag construction has done a few projects for us as well as some commercial work at our building to mention a few. We started with our commercial property in Smithtown. He came in and went right to work and the timeline was fantastic. We called him to our home to finish our basement thereafter. I was so impressed I also had him reconfigure our first floor laundry room as well. This year he’s doing a few more projects here! It’s not everyday you find a professional that treats your home like his own and his recommendations are always well planned and precise which to me is greatly appreciated. I can’t say enough good things about this contractor and would have him do any project beyond my scope at either our home or business alike. A++++ Frank and Mary O’Donnell Speonk, NY"
Handymen Project
Handymen Project
Handymen Project
Handymen Project
Additional Photos

+37

11 neighbors recently requested a quote
Recommended by81%of homeowners
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Showing 1-10 of 1188

FAQs for addition and remodeling projects in West Islip, NY

The proper sequence of a kitchen installation starts with laying the foundation and structural framework. From there, you need to establish utilities like plumbing, wiring, and gas lines, then install cabinetry and countertops, and finally finish with flooring, painting, tile backsplashes, and lighting. A professional kitchen installation contractor can coordinate each component of your project to minimize the timeline and maximize resources.

The West Islip, NY homeowners’ guide to addition and remodeling services

From average costs to expert advice, get all the answers you need to get your job done.