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Find Basement remodelers in Roslyn

Avatar for Stars and Stripes Home Improvement LLC

Stars and Stripes Home Improvement LLC

4.94(
264
)
Approved Pro

Stars and Stripes Home Improvement LLC

4.94(
264
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
9 years of experience

With US HOME / STARS AND STRIPES has been servicing homeowners for more than 25 years. Customer preference and priorities are always first. We're very timely with our work and never lose attention to detail. Give us a call for your free estimate.Deal direct with owner. FULLY LICENSED: Suffolk County Nassau County

"ABSOLUTELY WONDERFUL to work with!! Hired Stars and Stripes after seeing some work they did at 2 of our friend’s houses. Our goal was to remodel just the 1 bathroom but Bob, Steven, Angel and the whole crew were professional, easy to work with, trustworthy, knowledgeable and affordable that we decided to remodel the 2nd bathroom. Beyond satisfied with both projects! Currently working on another project with them..and will posts pics when completed. "

Patricia G on January 2026

With US HOME / STARS AND STRIPES has been servicing homeowners for more than 25 years. Customer preference and priorities are always first. We're very timely with our work and never lose attention to detail. Give us a call for your free estimate.Deal direct with owner. FULLY LICENSED: Suffolk County Nassau County

"ABSOLUTELY WONDERFUL to work with!! Hired Stars and Stripes after seeing some work they did at 2 of our friend’s houses. Our goal was to remodel just the 1 bathroom but Bob, Steven, Angel and the whole crew were professional, easy to work with, trustworthy, knowledgeable and affordable that we decided to remodel the 2nd bathroom. Beyond satisfied with both projects! Currently working on another project with them..and will posts pics when completed. "

Patricia G on January 2026


Diverse Repairs, Inc.

4.67(
3
)
Approved Pro

Diverse Repairs, Inc.

4.67(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
18 years of experience

Diverse Repairs, is your number one remodeling/building source in Nassau County. Whether doing a basement or a bathroom, we take the utmost pride in the work we do, as customer satisfaction is our number one priority. We look forward to working with you.

"Highly professional, beautiful workmanship, always on time, a pleasure to work with and the cost of the renovation was reasonable. The basement looks fantastic!! Would highly recommend Edward and his team!!!"

Joanna T on July 2018

Diverse Repairs, is your number one remodeling/building source in Nassau County. Whether doing a basement or a bathroom, we take the utmost pride in the work we do, as customer satisfaction is our number one priority. We look forward to working with you.

"Highly professional, beautiful workmanship, always on time, a pleasure to work with and the cost of the renovation was reasonable. The basement looks fantastic!! Would highly recommend Edward and his team!!!"

Joanna T on July 2018


Avatar for Exterior Team Home Services, Inc.

Exterior Team Home Services, Inc.

4.95(
22
)
Approved Pro

Exterior Team Home Services, Inc.

4.95(
22
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
10 years of experience

Exterior Team Home Services, Inc takes great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Call Exterior Team Home Services, Inc today!

"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."

Ed S on September 2023

Exterior Team Home Services, Inc takes great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Call Exterior Team Home Services, Inc today!

"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."

Ed S on September 2023


Avatar for Alexis Property Management & Delivery Services LLC

Alexis Property Management & Delivery Services LLC

4.70(
10
)
Approved Pro

Alexis Property Management & Delivery Services LLC

4.70(
10
)
Approved Pro
Super Service Award
Customers say: Quick response
15 local quotes requested
9 years of experience

We specialize in Hauling, interior and exterior painting services, staining, cabinet painting, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today! Relocation services apt Complex Maintenance Renovation/ Remodeling Delivery Gardening Landscaping Garbage Removal Power wash Painting etc

"I hired Jenson to renovate my bathroom on October 10, 2025, with a contract stating a completion time of 7 to 12 days. However, the renovation was completed on November 25, 2025. The constant influx of workers entering my home, especially my disabled father, made me and him quite uneasy. On December 24, 2025, I reached out to Jenson because the grout was falling out and the senior grab bars were not properly installed. These issues posed a significant safety hazard for my father, who had a stroke and has right side weakness. My father was the sole reason I needed to redo my bathroom. Despite my repeated attempts to contact Jenson, I was assured that someone would come to address the issues. However, as of January 24, 2026, no one has shown up. Jenson had informed me on five separate occasions that someone would be coming, and I was home waiting for them, but they never arrived. Sadly I am left to resolve this on my own. I am disheartened, tired, frustrated and full of regret"

Janet G on January 2026

We specialize in Hauling, interior and exterior painting services, staining, cabinet painting, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today! Relocation services apt Complex Maintenance Renovation/ Remodeling Delivery Gardening Landscaping Garbage Removal Power wash Painting etc

"I hired Jenson to renovate my bathroom on October 10, 2025, with a contract stating a completion time of 7 to 12 days. However, the renovation was completed on November 25, 2025. The constant influx of workers entering my home, especially my disabled father, made me and him quite uneasy. On December 24, 2025, I reached out to Jenson because the grout was falling out and the senior grab bars were not properly installed. These issues posed a significant safety hazard for my father, who had a stroke and has right side weakness. My father was the sole reason I needed to redo my bathroom. Despite my repeated attempts to contact Jenson, I was assured that someone would come to address the issues. However, as of January 24, 2026, no one has shown up. Jenson had informed me on five separate occasions that someone would be coming, and I was home waiting for them, but they never arrived. Sadly I am left to resolve this on my own. I am disheartened, tired, frustrated and full of regret"

Janet G on January 2026


Avatar for Northgate Home Improvement Corp.

Northgate Home Improvement Corp.

4.99(
82
)
Approved Pro

Northgate Home Improvement Corp.

4.99(
82
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
12 local quotes requested

Please call my mobile phone for faster service: 516-449-8700!! Also, please provide a call back number in your inquiry. Northgate Home Services is a complete home services company which will handle all of your home improvement needs - inside and out. I will personally work with you to design and complete your home improvement project so that it meets all of your needs and expectations. Northgate Home Services is licensed and insured in both Suffolk and Nassau counties.

"I have had Jeff and his guys renovate my ranch house in Melville. He has done 2 bathrooms, my basement and my kitchen. He has always been reliable and done great work. The house looks like new. He quickly corrects any problems and is always in touch. He and his guys are friendly and neat. His estimates are reasonable. I strongly recommend Northgate Home Improvement."

Peter P on March 2025

Please call my mobile phone for faster service: 516-449-8700!! Also, please provide a call back number in your inquiry. Northgate Home Services is a complete home services company which will handle all of your home improvement needs - inside and out. I will personally work with you to design and complete your home improvement project so that it meets all of your needs and expectations. Northgate Home Services is licensed and insured in both Suffolk and Nassau counties.

"I have had Jeff and his guys renovate my ranch house in Melville. He has done 2 bathrooms, my basement and my kitchen. He has always been reliable and done great work. The house looks like new. He quickly corrects any problems and is always in touch. He and his guys are friendly and neat. His estimates are reasonable. I strongly recommend Northgate Home Improvement."

Peter P on March 2025


Avatar for AQ CONSTRUCTION CORP.

AQ CONSTRUCTION CORP.

5.00(
6
)
Approved Pro

AQ CONSTRUCTION CORP.

5.00(
6
)
Approved Pro
27 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Excellent and prompt contractor. He never disappoints. To make the customer satisfied and happy is his main desire. Creates only the best of work as far as quality and longevity is concerned. Will always recommend him."

Ebby A on July 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Excellent and prompt contractor. He never disappoints. To make the customer satisfied and happy is his main desire. Creates only the best of work as far as quality and longevity is concerned. Will always recommend him."

Ebby A on July 2025


Avatar for Raza & Sons Construction, Inc.

Raza & Sons Construction, Inc.

5.00(
2
)
Approved Pro

Raza & Sons Construction, Inc.

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
12 years of experience

Platinum Construction is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 6 years of experience serving Brooklyn, NY and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!

"Excellent, professional, reliable"

Shah N on June 2024

Platinum Construction is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 6 years of experience serving Brooklyn, NY and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!

"Excellent, professional, reliable"

Shah N on June 2024


Avatar for Ms. & Mr. Construction NJ LLC

Ms. & Mr. Construction NJ LLC

4.73(
15
)
Approved Pro

Ms. & Mr. Construction NJ LLC

4.73(
15
)
Approved Pro
7 years of experience
Free onsite estimate

At Ms. & Mr. Construction, we offer reliable and professional services to tackle all your home improvement needs. From minor repairs and maintenance to major renovations, our skilled team is equipped to handle, Roofing, Plumbing, Handyman services, Painting, and more. We pride ourselves on delivering quality workmanship and exceptional customer service. Whether you need help with a small fix or larger project we are here to make your home comfortable and functional. We are one call away! Contact us today for a free estimate!

"I hired this company to do a few projects around my condo - dry wall, painting, electrical work, installing hardware and shelving. The team members who worked on the projects were professional, prompt, skilled, and have an attention to detail. The work they did was superior and affordable. I highly recommend this company as they went above and beyond to make my place look great. "

Jonathan M on December 2025

At Ms. & Mr. Construction, we offer reliable and professional services to tackle all your home improvement needs. From minor repairs and maintenance to major renovations, our skilled team is equipped to handle, Roofing, Plumbing, Handyman services, Painting, and more. We pride ourselves on delivering quality workmanship and exceptional customer service. Whether you need help with a small fix or larger project we are here to make your home comfortable and functional. We are one call away! Contact us today for a free estimate!

"I hired this company to do a few projects around my condo - dry wall, painting, electrical work, installing hardware and shelving. The team members who worked on the projects were professional, prompt, skilled, and have an attention to detail. The work they did was superior and affordable. I highly recommend this company as they went above and beyond to make my place look great. "

Jonathan M on December 2025


Avatar for Trublue Of Northwest Nassau

Trublue Of Northwest Nassau

5.00(
1
)
Approved Pro

Trublue Of Northwest Nassau

5.00(
1
)
Approved Pro
1 years of experience
Free onsite estimate

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!

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!


Avatar for L&A CONSTRUCTION

L&A CONSTRUCTION

5.00(
2
)
Approved Pro

L&A CONSTRUCTION

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. Call us today!

"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"

Yadira C on August 2023

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. Call us today!

"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"

Yadira C on August 2023

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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.