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Find Basement remodelers in East Islip

Avatar for A.S.M. Home Improvements
A.S.M. Home Improvements
5.0(
10
)

Serving East Islip, NY and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"The bathroom remodel was done beautifully. Anthony & his crew were very professional. Arrived on time everyday & put in a full day. I noticed he even was concerned about making sure everything was clean when leaving each day. His price was reasonable & we are going hire him again."
Remodeling
Remodeling
Remodeling
Remodeling
2 of 2
fire pit

+48

Response time11 hrs
5 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for BuildingLI.com - BLI Facilities LLC
BuildingLI.com - BLI Facilities LLC
5.0(
25
)

Serving East 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

+165

Response time7 hrs
Recommended by76%of homeowners
Avatar for Reliable Home Remodeling, LLC
Reliable Home Remodeling, LLC
4.8(
22
)

Serving East Islip, NY and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Tyler and his crew were great! always showed up on time and did great work. We are thrilled with our bathroom and will be using them in the future for other projects. Highly recommend them."
15 neighbors recently requested a quote
Recommended by68%of homeowners
Avatar for Greg Home Improvement, Inc.
Greg Home Improvement, Inc.
4.8(
80
)

Serving East Islip, NY and surrounding areas

Approved

In business since 1997

Free estimates

Warranties offered

"I was extremely happy with this company. I liked the fact that he would come to install one door. (Good to his advertisement, he goes to Suffolk county) It turned out to be more than the one door.. He returned my call, the same day. I found Greg, a pleasure to deal with. I chose his company to call, over 3 other names I felt fortunate, it worked out so well, and I made an excellent choice. Now have the name of someone who handles all types of home repairs, that does excellent work. I was extremely impressed, that upon walking up to my door, he removed the snow, off the steps. Top notch company!"
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 Alta Renovations Corp
Alta Renovations Corp
5.0(
25
)

Serving East Islip, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Warranties offered

"Jose and his team were the best team I have ever had work on a job in my house. Jose went WAY above and beyond to make sure we had our basement back in order in a timely fashion. He was willing to work after hours if needed to help get our finished basement back after we had suffered a sewage leak and had to wait until mitigation was complete. A 3-4 day job was complete in 2 days! And one of his workers, Carlos, from the second day stuck around to help me get the heavy and large items back into the basement. There was a previous review that said Jose was very emphatic to their needs and that is so true. That review actual was what made me give Jose a call. I wish there was a word better than highly recommend. Thank you Jose and your entire team!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+26

Response time8 hrs
7 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Golden Ladder Construction
Golden Ladder Construction
5.0(
10
)

Serving East Islip, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2013

Free estimates

Warranties offered

"Joe is a great guy to work with. We have contracted with Golden Ladder for projects in our basement, kitchen and bathroom. Joe is really good at dealing with the challenges of carpentry, plumbing and wiring in an older home."
Custom Cabinetry
LED mirror
Custom Vanity
Niche & Bench
Multifunctional

+53

Response time50 mins
Response rate94%
2 neighbors recently requested a quote
Avatar for AR Home Construction LLC
AR Home Construction LLC
5.0(
29
)

Serving East Islip, NY and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

A.R. Home Construction is a premier design and build construction company specializing in luxury new home construction and high-end remodeling projects. With expertise in all aspects of construction, from conceptual design to final touches, A.R. Home Construction delivers exquisite and luxurious transformations. Our team of skilled professionals is dedicated to exceeding client expectations and creating stunning spaces that reflect unparalleled craftsmanship. Explore luxury and sophistication at our home design showroom, offering a curated selection of top -quality products for your project.

My jobs
My jobs
My jobs
My jobs
My jobs

+73

1 neighbors recently requested a quote
Recommended by100%of homeowners
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FAQs for basement remodeling projects in East Islip, NY

Finishing a basement turns unused square footage into livable space and returns up to 70% of what you spend when you sell your home. Beyond that resale boost, you gain a playroom, home office, or guest suite you can start enjoying right away. That mix of daily comfort and solid return on investment (ROI) makes basement finishing one of the smartest upgrades you can tackle.

In some parts of the country—especially lots on swamps, high water tables, or other wetlands—local codes prohibit basements. Saturated soil puts constant pressure on foundation walls and lets water seep in faster than any sump pump can handle. 

If your property sits on waterlogged ground, building on a slab or crawl space is often safer, more affordable, and code-compliant.

Most basements wrap up in four to eight weeks. Framing takes three to five days, with electrical and plumbing rough-ins following over the next week. Add five days for drywall, two to three for flooring, and another week for paint, trim, and punch-list items. 

Delays can happen if materials run late or your contractor’s calendar is packed, so build in a little cushion when you plan.

Whether a finished basement counts toward your home’s official square footage depends on local rules. Many areas only include below-grade space if it has code-approved egress, fully finished walls, ceilings, and floors, plus consistent heating. 

Check with your local assessor or building department before you start; meeting those standards can affect taxes, appraisals, and resale value.

Building codes require a checklist: dedicated heat and electrical service, a code-approved stairway, and at least one egress window or exterior door. Walls, ceilings, and floors must be fully finished and meet insulation, ventilation, and fire-separation standards. If you add a bedroom, you’ll also need a closet, proper clearances, and safe exits. If you change the layout later, be ready to update the space so every new room still meets today’s code.

The East Islip, NY homeowners’ guide to basement remodelings

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