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Find Basement remodelers in Nassau

Avatar for Elevated Home Improvements LLC

Elevated Home Improvements LLC

4.67(
12
)
Approved Pro

Elevated Home Improvements LLC

4.67(
12
)
Approved Pro
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
Free onsite estimate

We are a family owned business that pays attention to every little detail ensuring the projects come out flawless. Customer satisfaction is our top priority. Remodeling basements is our specialty, making a whole new living space out of your existing home! Please give us a call today!

"Vito and his crew finished our 800 sq foot basement and we couldn’t be happier with the job done. He walked us through each step and answered any and all questions along the way. Him and his crew were always punctual and professional. They didn’t stop until everything was perfect and they had our seal of approval. I can’t recommend them enough, we absolutely love our new space!"

Hilary S on July 2022

We are a family owned business that pays attention to every little detail ensuring the projects come out flawless. Customer satisfaction is our top priority. Remodeling basements is our specialty, making a whole new living space out of your existing home! Please give us a call today!

"Vito and his crew finished our 800 sq foot basement and we couldn’t be happier with the job done. He walked us through each step and answered any and all questions along the way. Him and his crew were always punctual and professional. They didn’t stop until everything was perfect and they had our seal of approval. I can’t recommend them enough, we absolutely love our new space!"

Hilary S on July 2022


Avatar for Sterling Home Solutions, LLC

Sterling Home Solutions, LLC

4.00(
14
)
Approved Pro

Sterling Home Solutions, LLC

4.00(
14
)
Approved Pro
Customers say: Terrific value
28 local quotes requested
9 years of experience

Sterling is the area's #1 Sunroom and Basement Finishing company. We also specialize in Premium Custom Decks, Pergola and Retractable Awnings. We do projects in Albany, Schenectady, Rensselaer, Saratoga, and Warren Counties. We are BBB+ accredited. Sterling is not just our name but the level of quality that goes into every project!

"Na"

Tara S on June 2024

Sterling is the area's #1 Sunroom and Basement Finishing company. We also specialize in Premium Custom Decks, Pergola and Retractable Awnings. We do projects in Albany, Schenectady, Rensselaer, Saratoga, and Warren Counties. We are BBB+ accredited. Sterling is not just our name but the level of quality that goes into every project!

"Na"

Tara S on June 2024


Avatar for ZONO CONSTRUCTION GROUP, LLC

ZONO CONSTRUCTION GROUP, LLC

5.00(
7
)
Approved Pro

ZONO CONSTRUCTION GROUP, LLC

5.00(
7
)
Approved Pro
Customers say: Quick response
5 years of experience
Free onsite estimate

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor Home Improvement services that are customizable to each individual project. We specialize in Additions and Basement Remodels, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Brian and the Zono team completed a new ground-level deck and upper deck railing remodel & stairs for us. I found Brian to be a great partner during the design process, and I felt like we ended up with something that felt custom to our space and needs. The crew was friendly and showed care around our home. Best of all, we get to enjoy the deck as a family!"

Melia D on April 2025

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor Home Improvement services that are customizable to each individual project. We specialize in Additions and Basement Remodels, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Brian and the Zono team completed a new ground-level deck and upper deck railing remodel & stairs for us. I found Brian to be a great partner during the design process, and I felt like we ended up with something that felt custom to our space and needs. The crew was friendly and showed care around our home. Best of all, we get to enjoy the deck as a family!"

Melia D on April 2025


Avatar for JAF Contracting

JAF Contracting

5.00(
5
)
Approved Pro

JAF Contracting

5.00(
5
)
Approved Pro
13 local quotes requested
16 years of experience

At JAF Contracting, we take pride in providing dependable roofing and home improvement services to Pittsfield and all of Berkshire County. Built on a foundation of craftsmanship, honesty, and reliability, we’re committed to helping homeowners protect and enhance their properties with quality work that lasts. Whether we’re installing a new roof, repairing storm damage, or tackling a full renovation, we treat every project with the same attention to detail and respect we’d expect for our own homes. Our team brings years of experience and a strong local reputation to every job, delivering results you can count on — on time and on budget. When you work with JAF Contracting, you're choosing a crew that values integrity, stands behind its work, and cares about the community we serve.

At JAF Contracting, we take pride in providing dependable roofing and home improvement services to Pittsfield and all of Berkshire County. Built on a foundation of craftsmanship, honesty, and reliability, we’re committed to helping homeowners protect and enhance their properties with quality work that lasts. Whether we’re installing a new roof, repairing storm damage, or tackling a full renovation, we treat every project with the same attention to detail and respect we’d expect for our own homes. Our team brings years of experience and a strong local reputation to every job, delivering results you can count on — on time and on budget. When you work with JAF Contracting, you're choosing a crew that values integrity, stands behind its work, and cares about the community we serve.


TKW Home Solutions

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

TKW Home Solutions

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
2026 years of experience
Free onsite estimate

TKW Home Solutions LLC. is a locally owned and operated general contracting company committed to quality craftsmanship, clear communication, and dependable service. We specialize in residential remodeling, renovations, and home improvement projects of all sizes. From kitchens and bathrooms to full-home renovations, we take pride in delivering detailed, high-quality work that stands the test of time. Our goal is simple: complete your project on schedule, within budget, and with results you’ll love. We treat every home as if it were our own and every client as a long-term relationship—not just a job. Contact us today for a consultation. We look forward to bringing your vision to life.

TKW Home Solutions LLC. is a locally owned and operated general contracting company committed to quality craftsmanship, clear communication, and dependable service. We specialize in residential remodeling, renovations, and home improvement projects of all sizes. From kitchens and bathrooms to full-home renovations, we take pride in delivering detailed, high-quality work that stands the test of time. Our goal is simple: complete your project on schedule, within budget, and with results you’ll love. We treat every home as if it were our own and every client as a long-term relationship—not just a job. Contact us today for a consultation. We look forward to bringing your vision to life.


Avatar for TH Building Co

TH Building Co

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

TH Building Co

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
2026 years of experience
Free onsite estimate

I’ve been working in trades since I was a kid and have done a little bit of everything to include management and leadership along the way. My focus remains on quality, craftsmanship and the customer is treated fairly and respectfully.

I’ve been working in trades since I was a kid and have done a little bit of everything to include management and leadership along the way. My focus remains on quality, craftsmanship and the customer is treated fairly and respectfully.


Avatar for Marlenys Construction

Marlenys Construction

4.86(
7
)
Approved Pro

Marlenys Construction

4.86(
7
)
Approved Pro
Super Service Award
Customers say: Quality work
14 local quotes requested
3 years of experience

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"Awesome job"

María D on March 2025

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"Awesome job"

María D on March 2025


Avatar for AA Construction

AA Construction

5.00(
2
)
Approved Pro

AA Construction

5.00(
2
)
Approved Pro
18 local quotes requested
11 years of experience

I focus on solving your specific problems, demonstrating unique value (experience, unique process, passion), proving reliability (communication, results), and building a strong relationship, proving you're not just another vendor but a partner who understands your goals.

"The job was done right, before time and great customer service "

Shyam D on February 2026

I focus on solving your specific problems, demonstrating unique value (experience, unique process, passion), proving reliability (communication, results), and building a strong relationship, proving you're not just another vendor but a partner who understands your goals.

"The job was done right, before time and great customer service "

Shyam D on February 2026


Avatar for C & J Custom Builders Inc

C & J Custom Builders Inc

5.00(
22
)
Approved Pro

C & J Custom Builders Inc

5.00(
22
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 years of experience

C & J is a local family owned building and remodeling company. We provide the highest quality of workmanship for all of your home renovation and remodeling projects. Handling all aspects of the construction process, we minimize the need for multiple contractors and assure your project runs smooth and efficiently. We use only the top quality products and go above and beyond to deliver craftsmanship you can have confidence and pride in.

"They person came over looked at the work gave me a quote and started the work. He removed all the old wood and replaced it with new."

Gary O on October 2021

C & J is a local family owned building and remodeling company. We provide the highest quality of workmanship for all of your home renovation and remodeling projects. Handling all aspects of the construction process, we minimize the need for multiple contractors and assure your project runs smooth and efficiently. We use only the top quality products and go above and beyond to deliver craftsmanship you can have confidence and pride in.

"They person came over looked at the work gave me a quote and started the work. He removed all the old wood and replaced it with new."

Gary O on October 2021


Bowen Ridge Construction

5.00(
7
)
Approved Pro

Bowen Ridge Construction

5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

We are a full service building and remodeling contractor. We have been in the construction industry for more than 20 years. We remodel all aspects of your home, Kitchens, Baths, living areas and so much more. We also will build new homes, decks, garages, and out buildings. Our ability to accurately price jobs, puts us in a league of our own. We have the Best People, Best Products, Best Results, Everytime. Come experience the differences.

"Joe and his team put a beautiful addition on to my house. He did a great job of communicating and worked with us on pricing throughout. I would recommend him without hesitation."

Jesse Y on May 2024

We are a full service building and remodeling contractor. We have been in the construction industry for more than 20 years. We remodel all aspects of your home, Kitchens, Baths, living areas and so much more. We also will build new homes, decks, garages, and out buildings. Our ability to accurately price jobs, puts us in a league of our own. We have the Best People, Best Products, Best Results, Everytime. Come experience the differences.

"Joe and his team put a beautiful addition on to my house. He did a great job of communicating and worked with us on pricing throughout. I would recommend him without hesitation."

Jesse Y on May 2024

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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.