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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 rate94%
26 neighbors recently requested a quote
Avatar for Vulcan Basement Waterproofing & Flooring, Inc.
Vulcan Basement Waterproofing & Flooring, Inc.
3.2(
104
)

Serving Syosset, NY and surrounding areas

Approved

In business since 1947

Free estimates

Small jobs welcome

"Vulcan stone floors were laid down and essentially achieved by goals in my basement flooring. They laid the floors under a pool table as promised. But now 3 years later after the pool table has been removed we discovered problems under the 4 leg spots. I have made 4 calls to them without the courtesy of a return call. What had been a good experience with Vulcan has now been soured because they seem unconcerned with dealing with any issue. Shame on them!"
No More Wet Basement
Exterior Basement Waterproofing
Multiple Sealants
As Promised - Dry!
A Job Well Done!

+3

Response time1 day
26 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for Interior Source
Interior Source
4.8(
49
)

Serving Syosset, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Warranties offered

"They were incredibly professional, attentive to detail, and managed the project seamlessly, staying on schedule and within budget. We would highly recommend them to anyone considering a basement remodel."
Dr. Arif Kitchen
Remodeling - Kitchen & Bathroom Project
Kitchen and Bath Remodeling Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project

+30

Response time2 days
Response rate96%
10 neighbors recently requested a quote
Avatar for Quality Builders NYC
Quality Builders NYC
5.0(
4
)

Serving Syosset, NY and surrounding areas

Approved

In business since 2025

Free estimates

Offers commercial services

"Quality Builders Group did an excellent job on our bathroom remodel. The team was professional, clean, and very detail-oriented from start to finish. They showed up on time, communicated clearly, and made sure everything was done right. The work came out better than expected and they finished on schedule. I would highly recommend them to anyone looking for reliable and high-quality work."
4 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

"I first asked Jeff at Northgate to take out our old basement bathroom and build a new one 4 years ago. He did a great job for a reasonable price. He recently completed a total basement renovation and upstairs bathroom. Everything down to the studs. Again, did a wonderful job in about a month. He really deserves all the excellent reviews he has had. He always keeps you in touch and fixes any problems right away. We will be happy to have him do our kitchen soon. You will not find anyone better."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+56

Response time7 hrs
2 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Art Construction
Art Construction
4.3(
44
)

Serving Syosset, NY and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

"Soon as I met billy I could tell this guy and company were good. He was very knowledgeable and helped us with our ideas for basement work. He and his men were on time every day. There was no wasting of time. His prices were very fair and work turned out great. I have no problem recommending art construction to anyone"
Finished Bathroom
Driveways
Outdoor Pools
Bathroom
Driveways

+41

Response time1 day
Response rate86%
27 neighbors recently requested a quote
Avatar for Golden Ladder Construction
Golden Ladder Construction
5.0(
11
)

Serving Syosset, 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
Monterroso Design & Improvement, Inc
4.9(
33
)

Serving Syosset, NY and surrounding areas

Approved

In business since 1981

Free estimates

Credit card accepted

"Punctual, reliable and did exactly what they said they would. The work they did was outstanding. Our experience was positive from beginning to end, I really cant say enough about how amazing these guys are. My new basement looks impeccable and we have so much more use of it now."
Response time11 hrs
Response rate94%
3 neighbors recently requested a quote
Avatar for AR Home Construction LLC
AR Home Construction LLC
5.0(
29
)

Serving Syosset, 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

7 neighbors recently requested a quote
Recommended by100%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.