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Find Basement remodelers in Syosset

Avatar for Unique Interior Finishes
Unique Interior Finishes
4.8(
39
)

Serving Syosset, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Customers say: True professional

"Bob did an absolutely fantastic job. The man was a professional from beginning to end of the project . He had a vision and he made it happen . My basement has been transformed top to bottom and I could not be happier with the work . Bob gave a fair price and finished the project incredibly fast . I would highly recommend him to anyone looking to do a project in their home . My basement could not look any better"
Monica`s basement
monica`s basement
monica`s basement
Monica`s basement
Monica`s basement

+26

Response time12 hrs
Response rate95%
26 neighbors recently requested a quote
Avatar for JBL HOME IMPROVEMENTS INC
JBL HOME IMPROVEMENTS INC
4.6(
271
)

Serving Syosset, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Warranties offered

"They were easy to work with and the job came out great. After the basement remodel, we had them back to install bathroom and other cabinets. All went well, even with a different crew. Dave knows how to guide the customer to make good choices. Company is very dependable and prices are reasonable/competitive."
Additional Photos
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+23

Response time1 day
Response rate100%
6 neighbors recently requested a quote
Avatar for Northgate Home Improvement Corp.
Northgate Home Improvement Corp.
4.9(
93
)

Serving Syosset, NY and surrounding areas

Approved

In business since 1985

Free estimates

Warranties offered

"Jeff did a great job on our complete basement bathroom remodel last December so we asked him to do a small job of installing a vanity. The job was done quickly and efficiently. The price was reasonable. Everything was cleaned up. I highly recommend Northgate Home Improvement and will gladly hire them in the future."
Additional Photos
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+56

Response time7 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for Robert's Remodeling Professionals, Inc.
Robert's Remodeling Professionals, Inc.
4.5(
43
)

Serving Syosset, NY and surrounding areas

Approved

In business since 1989

Free estimates

Customers say: Quick response

"Robert is a trustworthy and skilled professional. Our family has engaged his services on multiple occasions -- most recently to install flooring in our basement -- and plan to do so in the future for additional remodeling work. Robert and team are reliable and perform great work (at a great value)."
Work
1 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Greg Home Improvement, Inc.
Greg Home Improvement, Inc.
4.7(
86
)

Serving Syosset, NY and surrounding areas

Approved

In business since 1997

Free estimates

Warranties offered

"Hired Greg for a full gut and remodel of a bathroom. Greg was very competent, personable, and took the time to understand exactly what we wanted. He made us feel like we were in good hands. He took the time to make sure things were done the right way. The result was top notch, couldn't have asked for more. I would definitely use this company again!"
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 Arthur DeRosa Building and Remodeling
Arthur DeRosa Building and Remodeling
4.7(
13
)

Serving Syosset, 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."
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+20

Response time2 days
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for RetroFix Construction
RetroFix Construction
5.0(
10
)

Serving Syosset, NY and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Retrofix Construction did an outstanding job finishing our basement. The workmanship was excellent, from the flooring and drywall to the painting and trim. The team was professional, kept the work area clean, and completed the project on schedule. The basement now feels like a bright, comfortable living space. We highly recommend Retrofix Construction!"
New Full Bathroom
New Full Bathroom
New Full Bathroom
New Full Bathroom
New Full Bathroom

+126

2 neighbors recently requested a quote
Recommended by33%of homeowners
Avatar for BuildingLI.com - BLI Facilities LLC
BuildingLI.com - BLI Facilities LLC
5.0(
32
)

Serving Syosset, NY and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"I used these guys for a remodeling job which included bathroom renovation, some minor electrical work, knocking down and installing new dry wall and painting. Class acts! We all hear horror stories about contractors not calling you back or not showing up on time or showing up at all. Not these guys! Hector, Moises and their crew really did exactly what they said they were going to do. Friendly, responsive and oh yea, solid work! Professional through and through! Highly recommend them and would use them again!"
before demo
kitchen demolition
demolition complete
kitchen tile job in progress
kitchen tile

+172

Response time7 hrs
Recommended by76%of homeowners
Avatar for Nunez Construction and Painting
Nunez Construction and Painting
4.5(
340
)

Serving Syosset, NY and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"Nunez Construction and Painting did an absolutely incredible job transforming our kitchen! From start to finish, their team was professional, detail-oriented, and dedicated to delivering top-quality craftsmanship. They listened to our vision, provided expert guidance, and executed the project flawlessly. The result is a stunning, functional, and modern kitchen that has completely elevated our home. Every element—from cabinetry to lighting—was handled with precision, and the communication throughout was excellent. If you're looking for a remodeling company that goes above and beyond, Nunez Construction and Painting is the one to trust. Highly recommended!"
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+32

Response time11 hrs
Recommended by92%of homeowners
Avatar for LI Developers, LLC
LI Developers, LLC
4.6(
173
)

Serving Syosset, NY and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

"My wife and I had a very positive experience working with LI Developers. The remodeling was on point and fast. We needed the basement and bathroom remodeled so from start to finish, they were professional and courteous. Their prices are very reasonable and their estimate was MUCH LESS than other places we looked at. Their business practices are completely transparent and professional which was very refreshing. Ryan and Jakob were very helpful out at our the home end. They were professional, courteous and took a lot of care with their work and in keeping our home clean in the process. I was particularly impressed with how he completely covered the area around the work space, and kept our home super clean and livable while the work was happening. I would definitely recommend this company to anyone who needs to have work done in their home!"
Contemporary Kitchen
Livingroom & Dining room
Master Bathroom
Full Bath
LiD 500

+5

Response time1 day
1 neighbors recently requested a quote
Recommended by80%of homeowners
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FAQs for basement remodeling projects in Syosset, 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 Syosset, NY homeowners’ guide to basement remodelings

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