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Find Basement remodelers in Nassau

Avatar for Artie's Home Maintenance and Property Services
Artie's Home Maintenance and Property Services
4.9(
34
)

Serving Nassau, NY and surrounding areas

Angi Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"We were very happy with Art?s work. Great job! He is reliable, professional, hard working, polite & easy to disscuss changes/problems with. He delivers high quality craftsmanship at a fair price. He finished our project very quickly and even worked on the weekend to finish the job. We would highly recommend."
Response time8 hrs
2 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for Shapiro Construction
Shapiro Construction
4.8(
20
)

Serving Nassau, NY and surrounding areas

Angi Approved

In business since 2012

Free estimates

Warranties offered

"Dan did an excellent job of repairing some log rot that was in a critical location of the structure He was thoughtful, creative and thorough. He also repaired the part of my deck that was partially responsible for the log damage. Ok pricing was very fair I will be contacting Dan for remodeling work in the future"
Handymen Project
Handymen Project
Remodeling - General Project
Heating & A/C Project
Remodeling - General Project

+52

Response time1 day
2 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Gooshaw Construction Services
Gooshaw Construction Services
5.0(
9
)

Serving Nassau, NY and surrounding areas

Angi Approved

In business since 2021

Free estimates

Warranties offered

"Eric Gooshaw and his partner constructed a 10?x10? wooden deck, and a new entry door at the rear of my 2nd floor Condo, an old brick building? they did a super-excellent job; they also secured the required building permits? couldn?t be happier with the results."
Response time2 days
Response rate89%
Recommended by77%of homeowners
Regeneration Contracting, LTD
4.7(
18
)

Serving Nassau, NY and surrounding areas

Angi Approved

In business since 2015

Free estimates

Customers say: Quality work

"Derek Seiger was an absolute joy to work with! Not only was he reliable (showing up as promised), but the quality of his work is exceptional. He was pleasant and efficient and I would recommend him to anyone interested in good work done in a timely and professional manner."
Cabin
Kitchen and Cabinets
Bathrooms
Decks and Steps
Bathroom

+96

Response time1 day
7 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Preferred Painting & Carpentry
Preferred Painting & Carpentry
4.9(
9
)

Serving Nassau, NY and surrounding areas

Angi Approved

In business since 2015

Free estimates

Customers say: Quick response

"Jeremiah is an absolute gem. I initially reached out about refinishing the floors of my new home, which ballooned into ripping up the kitchen floor and replacing, building out a new laundry closet, and giving the kitchen a glow-up. He is hardworking, professional, is very thoughtful about the quality of the work, and comes when he says he will. "
Response time2 days
6 neighbors recently requested a quote
Recommended by88%of homeowners
Ross Contracting Corporation
5.0(
11
)

Serving Nassau, NY and surrounding areas

Angi Approved

In business since 2005

Free estimates

Warranties offered

"Nick came right out to see the project in November.he made it clear that they only had availability in the spring. Based on the reviews on Home Advisor,we decided to wait. They were a pleasure to have around and were extremely efficient. Nick made suggestions from experience including veto-ing my original counter choice! He was sooo right! We love the job and have more things planned for the future."
Swanstone Bathroom
 New home
Swanstone Bathroom
 Common ash flooring 5" wide
Swanstone Bathroom

+5

Recommended by100%of homeowners
Avatar for Advanced Energy Adviser's
Advanced Energy Adviser's
4.5(
10
)

Serving Nassau, NY and surrounding areas

Angi Approved

In business since 2014

Free estimates

Warranties offered

"hire them to remove the old deck/pouch and install a new deck. The day the work was to start, removing the old pouch/deck, they said they would be there at 9 AM. I called at 9:45 AM asking where they were. Got a call back 5 to 10 mins later and was told they were running late. I said this is now a good start to the project and he wanted to return my deposit check. Got the feeling they did not want the job. They still had the ck that was issued June 29? Something did not feel right about this company."
Recommended by90%of homeowners
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Showing 1-10 of 279
FAQs for basement remodeling projects in Nassau, 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 Nassau, NY homeowners’ guide to basement remodelings

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