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Find Basement remodelers in Old Westbury

Avatar for Danny Construction

Danny Construction

4.92(
12
)
Approved Pro

Danny Construction

4.92(
12
)
Approved Pro
Customers say: Quick response
18 local quotes requested
6 years of experience

We take great pride 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. order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Danny and his team were very professional, on time, communicative, her;pful with suggestions, and overall did a great job replacing our exterior door and storm door. H e even has put in a mail slot in the exterior door for me , which came out beautifully. They are experts at what they do, and meticulous with attention to detail. I would recommend this company highly for anyone that needs doors and /or any construction projects done. Definitely a 5 star company. "

Ruth K on December 2025

We take great pride 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. order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Danny and his team were very professional, on time, communicative, her;pful with suggestions, and overall did a great job replacing our exterior door and storm door. H e even has put in a mail slot in the exterior door for me , which came out beautifully. They are experts at what they do, and meticulous with attention to detail. I would recommend this company highly for anyone that needs doors and /or any construction projects done. Definitely a 5 star company. "

Ruth K on December 2025


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


Atlantic Shore Builders & Developers

5.00(
3
)
Approved Pro

Atlantic Shore Builders & Developers

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 local quotes requested

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. We are watchful of our customer's interests and make their concerns the basis of our business. Give us a call for a quote today!

"Friendly, low price, and best of all the painter, Francisco, is a REAL professional who’s not about doing a slipshod job and leaving. He took as many days as he needed at a flat rate and ensured the job was top quality."

Alexander M on October 2021

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. We are watchful of our customer's interests and make their concerns the basis of our business. Give us a call for a quote today!

"Friendly, low price, and best of all the painter, Francisco, is a REAL professional who’s not about doing a slipshod job and leaving. He took as many days as he needed at a flat rate and ensured the job was top quality."

Alexander M on October 2021


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 L J & A Construction Corporation

L J & A Construction Corporation

4.89(
71
)
Approved Pro

L J & A Construction Corporation

4.89(
71
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
18 years of experience

L J & A Construction Corporation is your neighborhood source for a new home build or remodeling project. Knowing how important being local is, you can have confidence that your project will be done with the experience and caring of someone who is part of the neighborhood. With over 20 years of combined experience in the new home build industry you can be assured your project will be done right and exceed your expectations. Give us a call ( 917-517-3840 ) and see why we are the only choice for you., check us on bbb website , better business bureau , also on google ; lic # 1426760 new York ; lic # H18H5460000 Nassau county ; lic # 12012 long beach ; LJ&A is a general contractor and construction superintendent : we are GAF CERTIFIED roofing contractor lifetime warranty 50 year on new roof ; we are EPA lead paint certification ; we are a financing company with GREENSKY

"LI & A Construction completed two projects for us. The first was last summer. Mr. Hetnarien and his team eliminated a section of the houseâ s back deck. This year LI & A Construction updated a section of a small bathroom in our house. On both projects, Mr. Hetnarien and his crew did an outstanding job. My research for a general contractor led me to LI & A Contraction Corp. My first requirement was that the business have the necessary license and insurance in good standing and Mr. Hetnarien â s business did. On communication and responsiveness, they get high marks. Mr. Hetnarien always got back to me within 48 hours. He is both accessible and approachable. Both jobs were carried out promptly. If they anticipated a delay because of bad weather (and there was), this was made known to me ahead of time. He and his team are knowledgeable, professional, and respectful. I would not hesitate to hire Mr. Hetnarien again."

Sonia V on February 2024

L J & A Construction Corporation is your neighborhood source for a new home build or remodeling project. Knowing how important being local is, you can have confidence that your project will be done with the experience and caring of someone who is part of the neighborhood. With over 20 years of combined experience in the new home build industry you can be assured your project will be done right and exceed your expectations. Give us a call ( 917-517-3840 ) and see why we are the only choice for you., check us on bbb website , better business bureau , also on google ; lic # 1426760 new York ; lic # H18H5460000 Nassau county ; lic # 12012 long beach ; LJ&A is a general contractor and construction superintendent : we are GAF CERTIFIED roofing contractor lifetime warranty 50 year on new roof ; we are EPA lead paint certification ; we are a financing company with GREENSKY

"LI & A Construction completed two projects for us. The first was last summer. Mr. Hetnarien and his team eliminated a section of the houseâ s back deck. This year LI & A Construction updated a section of a small bathroom in our house. On both projects, Mr. Hetnarien and his crew did an outstanding job. My research for a general contractor led me to LI & A Contraction Corp. My first requirement was that the business have the necessary license and insurance in good standing and Mr. Hetnarien â s business did. On communication and responsiveness, they get high marks. Mr. Hetnarien always got back to me within 48 hours. He is both accessible and approachable. Both jobs were carried out promptly. If they anticipated a delay because of bad weather (and there was), this was made known to me ahead of time. He and his team are knowledgeable, professional, and respectful. I would not hesitate to hire Mr. Hetnarien again."

Sonia V on February 2024


Tek Home Improvements, Inc.

4.75(
53
)
Approved Pro

Tek Home Improvements, Inc.

4.75(
53
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
13 years of experience

We take 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.

"All I can say isâ ¦ AL!!!! Thatâ s all you need to know when it comes to Tek Home Improvement! Al is just amazing! So easy to work with, communicate with and he goes above and beyond to make sure he does good quality work at a fair price. He is reliable, on time, courteous and friendly. Al, worked with us every step of the way to make sure our vision came to life. He had fantastic ideas and recommendations and it was a true pleasure doing business with him. We have many more home improvement projects lined up and Al is our new go to guy! If you are tired of playing games with other contractors and paying insane prices for low quality work you need to give Al a call ASAP!!!!"

Philip W on July 2024

We take 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.

"All I can say isâ ¦ AL!!!! Thatâ s all you need to know when it comes to Tek Home Improvement! Al is just amazing! So easy to work with, communicate with and he goes above and beyond to make sure he does good quality work at a fair price. He is reliable, on time, courteous and friendly. Al, worked with us every step of the way to make sure our vision came to life. He had fantastic ideas and recommendations and it was a true pleasure doing business with him. We have many more home improvement projects lined up and Al is our new go to guy! If you are tired of playing games with other contractors and paying insane prices for low quality work you need to give Al a call ASAP!!!!"

Philip W on July 2024


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 Proper Contracting NY Inc

Proper Contracting NY Inc

4.97(
29
)
Approved Pro

Proper Contracting NY Inc

4.97(
29
)
Approved Pro
Super Service Award
Customers say: True professional
14 years of experience
Free onsite estimate

Hi, This is Proper Contracting, we serve in New York. We do Exterior and Interior work. We provide the service Interior Renovation, Bath, Kitchen and Bathroom remodeling, tile work, masonry work, stucco, brick work, rick tuckpointing, waterproofing, roofing. power wash, windows replaced, electric and plumbing work, drywall installation and repair, painting, flooring,. Honesty , Responsibility and Quality is our policy. We also provide waterproofing and roofing

"I had the pro add a hatch into the ceiling and the team did a wonderful job."

Naomi N on February 2026

Hi, This is Proper Contracting, we serve in New York. We do Exterior and Interior work. We provide the service Interior Renovation, Bath, Kitchen and Bathroom remodeling, tile work, masonry work, stucco, brick work, rick tuckpointing, waterproofing, roofing. power wash, windows replaced, electric and plumbing work, drywall installation and repair, painting, flooring,. Honesty , Responsibility and Quality is our policy. We also provide waterproofing and roofing

"I had the pro add a hatch into the ceiling and the team did a wonderful job."

Naomi N on February 2026


Avatar for Arthur DeRosa Building and Remodeling

Arthur DeRosa Building and Remodeling

5.00(
12
)
Approved Pro

Arthur DeRosa Building and Remodeling

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

We are a building, remodeling, home improvement firm backed with 31 yrs experience. I, Arthur DeRosa, personally over see every project, big or small, from start to finish. I have an artists soul and every project that I am privileged to do is a reflection of that. With performance backed by experience and attention to detail, your project will be in good hands. The number of employees varies depending on work load. Sub-contractors are used when necessary. Proposals and estimates are free and include payment schedules with start and completion dates. Super Service Award winner for 2016! Call us today to schedule your appointment - (631) 774-1231

"Artie & Mike are simply the best. I used them to: 1) Build a LARGE extension to my house and redo my entire kitchen and dining room. The job was completed on time and on budget. Throughout the process Artie was transparent & professional. EVERY person who has stepped into my house has complimented at the detailed perfection. 3) Artie built us a custom walk in pantry 2) Built 2 large decks in the backyard as well as an outdoor shower. This project was completed on time, on budget while exceeding all expectations. If you are looking for a contractor and crew that is responsible, responsive, polite, creative and delivers the HIGHEST LEVEL of quality - Artie is the one."

Constantine M on March 2023

We are a building, remodeling, home improvement firm backed with 31 yrs experience. I, Arthur DeRosa, personally over see every project, big or small, from start to finish. I have an artists soul and every project that I am privileged to do is a reflection of that. With performance backed by experience and attention to detail, your project will be in good hands. The number of employees varies depending on work load. Sub-contractors are used when necessary. Proposals and estimates are free and include payment schedules with start and completion dates. Super Service Award winner for 2016! Call us today to schedule your appointment - (631) 774-1231

"Artie & Mike are simply the best. I used them to: 1) Build a LARGE extension to my house and redo my entire kitchen and dining room. The job was completed on time and on budget. Throughout the process Artie was transparent & professional. EVERY person who has stepped into my house has complimented at the detailed perfection. 3) Artie built us a custom walk in pantry 2) Built 2 large decks in the backyard as well as an outdoor shower. This project was completed on time, on budget while exceeding all expectations. If you are looking for a contractor and crew that is responsible, responsive, polite, creative and delivers the HIGHEST LEVEL of quality - Artie is the one."

Constantine M on March 2023

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FAQs for basement remodeling projects in Old Westbury, 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 Old Westbury, NY homeowners’ guide to basement remodelings

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