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Find Basement remodelers in Nassau

Avatar for C & J Custom Builders Inc
C & J Custom Builders Inc
5.0(
22
)

Serving Nassau, NY and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Jerry and his team did a fabulous job on our basement egress window. Fantastic communication, before during and after the job. Excellent workmanship. Cleaned up very well after the big job. Flexibly worked with our schedule. Jerry even gave me advice on laying out our basement remodel (we are doing it ourselves) and gave me advice on materials and design. Totally happy. Would recommend C&J without reservation!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+36

Response time2 days
6 neighbors recently requested a quote
Recommended by100%of homeowners
Bowen Ridge Construction
5.0(
7
)

Serving Nassau, NY and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"Fantastic! Bowen Ridge Construction has a great team! They know how to get the job done! They get right to the task and do an amazing job. We were amazed as to how much they were able to accomplish in the time frame that they had! Quality work. Highly recommend! Can’t wait for them to be back for our next renovations!"
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project

+106

Response time1 day
3 neighbors recently requested a quote
Recommended by100%of homeowners
Regeneration Contracting, LTD
4.7(
18
)

Serving Nassau, NY and surrounding areas

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
13 neighbors recently requested a quote
Recommended by100%of homeowners
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

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"Artie was exceptionally professional and knowledgeable in a vast array of services. Artie worked for me for over 7 years preforming tasks that varied from converting a small shed to a luxury air bnb, remodeling apartment buildings, restructuring and replacing a large porch, installing washer and dryers as well as dishwashers, and various small home projects. Artie was always punctual and reliable. He completed all jobs in a timely and effective manner. He also fixed projects that were done improperly by other contractors. I also found him to be cost effective in every way. Saving myself time, money, and energy upon every job that I hired him for. Artie still works for me to this day. Heâ s my go to for just about anything and everything!"
Response time8 hrs
2 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for Gooshaw Construction Services
Gooshaw Construction Services
5.0(
9
)

Serving Nassau, NY and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"I had several projects I needed completed. Gooshaw Construction responded to my Anji inquiry regarding a bathroom remodel. We made appt. within days to meet and explain what I wanted. They showed up exactly as set up and listened to exactly what I wanted. Long story short bathroom remodel, kitchen and foyer upgrade, new fencing, deck powered washed and painted later I can whole heartedly endorse Gooshaw Construction. At each stage i was presented with a complete quote including pricing and timeline. In all phases they completely followed as agreed and with an eye for detail and integrity. I highly recommend."
Response time2 days
Response rate89%
2 neighbors recently requested a quote
Ross Contracting Corporation
5.0(
11
)

Serving Nassau, NY and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"I would recommend Ross Contracting for all your home remodeling needs as well as new projects you would like to have done at your residence. They were thorough and have excellent work ethic. There estimate was exactly what I paid, without any hidden fees. As well as being very reasonable. They are local and I will use them again for any future projects."
Swanstone Bathroom
 New home
Swanstone Bathroom
 Common ash flooring 5" wide
Swanstone Bathroom

+5

Recommended by100%of homeowners
Avatar for Sterling Home Solutions, LLC
Sterling Home Solutions, LLC
4.0(
14
)

Serving Nassau, NY and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

"Rick is hard to get a hold of but once you do he is great he repaired my roof the sunroom is beautiful my wife loves it thanks, Rick."
Studio Sunrooms
Studio Sunrooms
Studio Sunrooms
Studio Sunrooms
Studio Sunrooms

+76

Response time1 day
55 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for Advanced Energy Adviser's
Advanced Energy Adviser's
4.5(
10
)

Serving Nassau, NY and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Asked for a quote on removing an old deck, replacing with a larger one. Price quoted was fair, and we accepted. We're very pleased with the final product, and the whole ordeal was hassle-free for me and my wife. Every worker involved was very professional. Communication from start to finish was excellent, and I feel the job was completed faster than we had expected. Will be using this company in the future for other projects."
Response time2 days
Recommended by90%of homeowners
Anderson Construction Corporation
New to Angi

Serving Nassau, NY and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

A.C.C. is a family-owned full service residential remodeling corporation. We take pride in our dependability and ensuring that you can count on us to complete the job in a timely manner... Because building your dream home, shouldn't have to be a nightmare. At present we are specializing in residential remodeling and home improvements. A.C.C. is fully insured and MBE Certified.

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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.