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Find Basement remodelers in Roslyn

Avatar for Exterior Team Home Services, Inc.
Exterior Team Home Services, Inc.
5.0(
22
)

Angi Approved

In business since 2016

Free estimates

Warranties offered

"Ronald and his Team did an excellent job for a very good price. Very professional. Pointed out some things that needed attention and then took care of it. The workmanship and customer service is better than any other craftman I have ever hired. I will keep Exterior Team Home Service number available to recommend to anyone that asks if "I know someone who...." I trust Exterior Team Home and will use them in the future."
1 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for L&A CONSTRUCTION
L&A CONSTRUCTION
5.0(
2
)

Angi Approved

In business since 2011

Free estimates

Customers say: Quick response

"The work was done very nite and profesional and the contractor was on time with the entire project and the final project turned out beutiful. And i willing to recomenden and hire him again"
Recommended by100%of homeowners
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Avatar for Art Construction
Art Construction
4.6(
33
)

Angi Approved

In business since 2007

Free estimates

Warranties offered

"Billi and his father did amazing job. We have our basement remodeled.after a disaster made by another incompetent contractor form thumbtack(Tyler Macy). Billi was very nice help us put everything together. Fix whatever mistakes done by previous guy.They were also reasonable on price & get the job done exactly on time.I recommend Art construction for quality, honest & reasonable cost.Thank you Billi."
7 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Trublue Of Northwest Nassau
Trublue Of Northwest Nassau
5.0(
1
)

Angi Approved

In business since 2025

Free estimates

TruBlue Of Northwest Nassau is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

2 neighbors recently requested a quote
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Avatar for Unique Interior Finishes
Unique Interior Finishes
4.8(
31
)

Angi 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 "
6 neighbors recently requested a quote
Recommended by83%of homeowners
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Avatar for Basic Basement Co
Basic Basement Co
4.9(
304
)

Angi Approved

Super Service Award Winner

In business since 2007

Free estimates

Warranties offered

"Absolutely amazing experience. SO EFFICIENT, always on time, GREAT value, unbelievable communication, and tremendous transparency. The contractors were so GREAT at what they do, and were clean and always on time. No hidden costs or expense (which you deal with with MOST contractors). This is not the best contracting company I have worked with, this is the BEST COMPANY I have ever worked with."
Recommended by96%of homeowners
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FAQs for basement remodeling projects in Roslyn, 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 Roslyn, NY homeowners’ guide to basement remodelings

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

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