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Find Basement remodelers in Williston Park

Avatar for KM Construction

KM Construction

5.00(
9
)
Approved Pro

KM Construction

5.00(
9
)
Approved Pro
Customers say: Quick response
16 years of experience
Free onsite estimate

KM Construction is a locally/owner run and operated company with over 10 years industry experience. We have been providing quality remodling and painting services to the Tri State area. As a locally owned and operated company we take personal pride in supporting the local community. With experience in both interior and exterior projects. we listen and work closely with our customers to ensure we understand your specific requirements. Our results turn your vision into a reality.

"They were very reasonably priced and their work was above par."

Michele R on August 2024

KM Construction is a locally/owner run and operated company with over 10 years industry experience. We have been providing quality remodling and painting services to the Tri State area. As a locally owned and operated company we take personal pride in supporting the local community. With experience in both interior and exterior projects. we listen and work closely with our customers to ensure we understand your specific requirements. Our results turn your vision into a reality.

"They were very reasonably priced and their work was above par."

Michele R on August 2024


Avatar for Danny Construction

Danny Construction

4.92(
12
)
Approved Pro

Danny Construction

4.92(
12
)
Approved Pro
Customers say: Quick response
16 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
15 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 Lcqualityimprovements

Lcqualityimprovements

4.89(
9
)
Approved Pro

Lcqualityimprovements

4.89(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

We're 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 Kitchen 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!

"Great work. Beautiful"

Bea S on October 2024

We're 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 Kitchen 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!

"Great work. Beautiful"

Bea S on October 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 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


Lemesos, Inc.

5.00(
10
)
Approved Pro

Lemesos, Inc.

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

Lemesos Inc. was formed by a group of experienced professionals to provide general interior construction work for residential and commercial clients. We strive for excellence and good workmanship. Over the past years we have worked and joined the elite companies of the city. Lemesos Inc. has the expertise and knowledge to deliver any project on time and on budget. By choosing Lemesos Inc. for your projects, you are automatically guaranteed unbeatable pricing, on time completion and professionalism. LEMESOSINC.COM

"Theo is absolutely wonderful to work with. He's an old school man of his word, as well as a talented contractor. His guys are skilled and fast. Very good carpentry, plumbing and electrical. He first finished our dank basement and turned it into a beautiful space, then moved on to gutting our kitchen and other upstairs details. Highly highly recommended. Besides being timely and competent, he quickly addressed issues that arose - a shower floor than needed to be pitched correctly, and some areas around a window they put in. We are continuing to ask Theo to work on projects at our businesses and will contact him in the future for any more home renovation we have."

Molly W on May 2015

Lemesos Inc. was formed by a group of experienced professionals to provide general interior construction work for residential and commercial clients. We strive for excellence and good workmanship. Over the past years we have worked and joined the elite companies of the city. Lemesos Inc. has the expertise and knowledge to deliver any project on time and on budget. By choosing Lemesos Inc. for your projects, you are automatically guaranteed unbeatable pricing, on time completion and professionalism. LEMESOSINC.COM

"Theo is absolutely wonderful to work with. He's an old school man of his word, as well as a talented contractor. His guys are skilled and fast. Very good carpentry, plumbing and electrical. He first finished our dank basement and turned it into a beautiful space, then moved on to gutting our kitchen and other upstairs details. Highly highly recommended. Besides being timely and competent, he quickly addressed issues that arose - a shower floor than needed to be pitched correctly, and some areas around a window they put in. We are continuing to ask Theo to work on projects at our businesses and will contact him in the future for any more home renovation we have."

Molly W on May 2015


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


Alpha Construct

5.00(
2
)
Approved Pro

Alpha Construct

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 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 ess

"Very professional and easy to work with!"

Lamar P on July 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 ess

"Very professional and easy to work with!"

Lamar P on July 2023

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FAQs for basement remodeling projects in Williston Park, 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 Williston Park, NY homeowners’ guide to basement remodelings

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