Transform Your Basement

Finished Basements

We turn your basement into a stylish, functional space—perfect for living, work, or play with expert design and finishing services.

Request a free estimate

We are ready to help you.

Reasons We’re Best

We turn unfinished basements into comfortable, code-conscious living space. From framing and insulation to drywall, flooring, lighting, and egress, our own crew handles the whole build, licensed under NYC DCWP #2127843-DCWP and fully insured, across Staten Island and all five NYC boroughs since 2014.

Highly Experienced

More than a decade of hands-on renovation work means your basement is planned for moisture, headroom, and code, and finished with materials that hold up below grade.

Clear, Upfront Estimates

You get a detailed written estimate before any work starts, so you know the full scope and there are no surprises along the way.

Free Consultation

We offer a no-pressure, no-cost inspection to understand your needs and provide clear guidance on the best way to restore or improve your property.

We Stand Behind Our Work

We take pride in the finished result and back the work we do. If something is not right, we make it right.

WHAT WE OFFER

Finished Basements Services

Basement Remodeling
Upgrade your basement with modern design, smart layouts, and high-quality finishes for a fresh, functional space.
Home Theater Setup
Create a cozy home theater with soundproofing, lighting, and custom seating for an ultimate entertainment experience.
Guest Suite Addition
Convert your basement into a comfortable guest suite with bedroom, bathroom, and storage options.
Home Office Basement
Design a productive basement office with lighting, ergonomic layout, and quiet environment for focused work.
Gym & Fitness Area
Build a personal fitness space with proper flooring, ventilation, and equipment placement for effective workouts.
Playroom & Recreation
Transform your basement into a safe, fun playroom or game area for kids and family activities.
Bar & Lounge Setup
Add a stylish bar or lounge with custom cabinets, seating, and ambiance for entertaining guests.
Storage Solutions
Organize your basement with smart shelving, cabinets, and storage systems to maximize space efficiently.
Finished Basements

Our Finished Basement Expertise

NDCCNY specializes in transforming unfinished basements into functional, stylish, and comfortable living spaces. Our team handles every aspect of basement finishing, including design, structural improvements, electrical and plumbing upgrades, and custom installations. We understand that basements often present unique challenges such as moisture control, low ceilings, and limited natural light. Our experts use high-quality materials and advanced techniques to overcome these challenges, ensuring durability, safety, and comfort. Whether you want a home theater, extra bedroom, recreation area, or a complete basement overhaul, we provide tailored solutions to match your vision.

Upgrade Your Basement Today

Contact NDCCNY to schedule a consultation and transform your basement into a stylish, functional, and comfortable living space.

TESTIMONIAL

What they say about us

National Design & Contracting Corp place picture
5.0
Based on 14 reviews
Lindita Hysaj profile picture
Lindita Hysaj
4 months ago
Excellent work from start to finish. The contractor handled the excavation for the test pit, restored the area with concrete, and cleaned everything up afterward. When I came home, everything was in perfect order. Professional, reliable, and easy to work with.
Professional work, timely and detailed, honest and sincere looking forward to working with NDC again in the very near future.
Nicole Parisi profile picture
Nicole Parisi
4 months ago
Excellent work! Painted my home in Bay Ridge! Highly recommend National Design!
J Y profile picture
J Y
4 months ago
I highly recommend Adeel and his team! This is the second time I’ve worked with him, and the experience was just as great as the first. They recently put down pavers and created a new carport parking spot in front of my house. The quality of the work is top-notch, and they completed the job quickly and professionally. Adeel is always a pleasure to work with—reliable, professional, and excellent at what he does.
craig levy profile picture
craig levy
4 months ago
I needed my roof capped. Adel gave me a quote and exceeded my expectations. His crew took their time and followed the design of the building. I have other work and I will work with Adel. I have confidence in giving Adel the highest recommendation possible. He took a dangerous and hard job and made it look easy.
Bea Bonanno profile picture
Bea Bonanno
4 months ago
I totally recommend National Design and Contracting.
They do excellent work. The workers are great, friendly and hard working. The end product is eyr catching and they produce the best looking house or project, on the block.
You will love their work.
Frankie Brooklyn profile picture
Frankie Brooklyn
4 months ago
Hey fully recommend national design & contracting there work is clean and amazing definitely used them again and great pricing amazing again
June Deteskey profile picture
June Deteskey
4 months ago
We recently had our garden walls and front steps replaced. We used natural stone on the walls and blue stone for the capping/step material. The results are amazing! It looks beautiful. The workers are excellent-highly skilled, clean, and just nice people. We have received many compliments from friends and neighbors.
Isana Loshinsky profile picture
Isana Loshinsky
5 months ago
I recently had my driveway redone, which included both pavers and concrete, as well as a planter installation, and I couldn't be happier with the results! In fact, two of my neighbors had followed in my steps and used this contractor for their driveways as well. After interviewing several contractors, I found this one to be the most responsive and reasonable. He not only had a clear vision for my driveway but even presented it alongside an image, which helped me visualize the final outcome.

To my delight, the finished driveway turned out even better than I had anticipated! This contractor is brimming with innovative ideas for enhancing the area he works on, and it was evident that he treated my project and my home as if they were his own. He was always respectful, polite, and kept every promise he made. It was obvious to me that he valued a returning customer and for him keeping a good relationship with a customer even after the job was finished was just as important as gaining a new customer.

Throughout the process, he was consistently available to communicate and always listened to my input. The experience felt like a productive and positive dialogue between myself, the contractor, and his crew. I would not hesitate to work with him again for any future projects. Highly recommend!

Finished Basement FAQ

How much does it cost to finish a basement in NYC?

It comes down to the size, the ceiling height and whether it needs to be adjusted, moisture control, whether you are adding a bathroom or kitchenette, egress requirements, and the finishes you choose. We assess the space, agree on the scope, and put it in a written estimate so the number reflects your actual basement. Ask for a free consultation.

How long does finishing a basement take?

Most finished-basement projects run three to six weeks depending on size, whether plumbing or a bathroom is added, and permit timing. You get a firm schedule in the written estimate before we start.

Do I need a permit to finish a basement in NYC?

Usually yes. Adding habitable space, plumbing, electrical, or egress typically requires permits and has to meet code for ceiling height, light, air, and a second way out. We tell you what your basement needs and handle the filings.

My basement gets damp. Can it still be finished?

Often yes, but moisture has to be solved first. We look for the source, address drainage, waterproofing, and vapor control, and use below-grade-rated materials so the finished space stays dry. Finishing over an untreated moisture problem is how basements get ruined, so we deal with it up front.

Do you handle egress, waterproofing, and insulation too?

Yes. Framing, insulation, drywall, flooring, lighting, egress windows, and moisture control are all part of the job, handled by one crew so nothing falls between trades.

Can you add a bathroom or bedroom in the basement?

Yes, where the layout and code allow. A basement bathroom needs proper drainage, and a legal bedroom needs code-compliant egress and ceiling height. We tell you what is possible in your space before you commit.

Will a finished basement add value to my home?

A well-finished, dry, code-compliant basement adds usable square footage and is one of the better returns in a NYC home, whether it becomes a family room, office, gym, or guest space.

Are you licensed and insured?

Yes. National Design and Contracting is a licensed NYC home improvement contractor, DCWP #2127843-DCWP, and fully insured. We have finished basements across the five boroughs since 2014 and stand behind our work. Free estimate: (347) 335-5005.