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Find Basement remodelers in Central Islip

Avatar for D&B Builders Group

D&B Builders Group

5.00(
1
)
Approved Pro

D&B Builders Group

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

License #HI-71073 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!

License #HI-71073 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!


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
34 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. 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 STK Prime Enterprise Inc

STK Prime Enterprise Inc

5.00(
6
)
Approved Pro

STK Prime Enterprise Inc

5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

With over 5 years of experience, STK Prime Enterprise is committed to excellence 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!

"Stk is very reliable, honest and does great work. I did a complete gut, added floors, painting, built a closet and remodeled the kitchen. I also recommend them to friends and they have not disappointed"

jason r on August 2021

With over 5 years of experience, STK Prime Enterprise is committed to excellence 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!

"Stk is very reliable, honest and does great work. I did a complete gut, added floors, painting, built a closet and remodeled the kitchen. I also recommend them to friends and they have not disappointed"

jason r on August 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 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


Avatar for Premier Home Remodeling & Design

Premier Home Remodeling & Design

4.55(
21
)
Approved Pro

Premier Home Remodeling & Design

4.55(
21
)
Approved Pro
Customers say: Quick response
7 years of experience
Free onsite estimate

With close to combined 30 years of experience, 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 Bath Remodels, Kitchen Remodels, Roofing & Siding, Extensions & Dormers, Handicap Alterations, 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! Come check out our beautiful showroom right off middle country road in Calverton Commons shopping center and see our large selection of Tile, Marble, Wood flooring, Vinyl flooring, Quartz and Granite Counter tops, and Cabinets!

"Premier home remodeling did a amazing job on a big renovation we had done on our home. We had our unfinished basement, kitchen and 2 bathrooms remodeled. Charles and the crew were professional, clean, and super friendly. They had great suggestions, and designed our kitchen a way me and my husband never thought could be done. Our bathrooms are beautiful, and our basement is a great new living space to our home. We will definitely use them again and will be recommending them to all of our family and friends. Thank you premier!"

Maria P on June 2025

With close to combined 30 years of experience, 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 Bath Remodels, Kitchen Remodels, Roofing & Siding, Extensions & Dormers, Handicap Alterations, 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! Come check out our beautiful showroom right off middle country road in Calverton Commons shopping center and see our large selection of Tile, Marble, Wood flooring, Vinyl flooring, Quartz and Granite Counter tops, and Cabinets!

"Premier home remodeling did a amazing job on a big renovation we had done on our home. We had our unfinished basement, kitchen and 2 bathrooms remodeled. Charles and the crew were professional, clean, and super friendly. They had great suggestions, and designed our kitchen a way me and my husband never thought could be done. Our bathrooms are beautiful, and our basement is a great new living space to our home. We will definitely use them again and will be recommending them to all of our family and friends. Thank you premier!"

Maria P on June 2025


Avatar for Unique Interior Finishes

Unique Interior Finishes

4.77(
31
)
Approved Pro

Unique Interior Finishes

4.77(
31
)
Approved Pro
Super Service Award
Customers say: True professional
26 years of experience
Free onsite estimate

Unique Interior Finishes, a licensed contractor, is your premier business for all your residential basement remodel needs servicing Nassau and Suffolk counties. With more than 15 years of experience, we pride ourselves on the quality of workmanship we provide to our customers. Please give us a call today! License #53390-H

"Bob did an absolutely fantastic job. The man was a professional from beginning to end of the project . He had a vision and he made it happen . My basement has been transformed top to bottom and I could not be happier with the work . Bob gave a fair price and finished the project incredibly fast . I would highly recommend him to anyone looking to do a project in their home . My basement could not look any better "

Vince V on June 2025

Unique Interior Finishes, a licensed contractor, is your premier business for all your residential basement remodel needs servicing Nassau and Suffolk counties. With more than 15 years of experience, we pride ourselves on the quality of workmanship we provide to our customers. Please give us a call today! License #53390-H

"Bob did an absolutely fantastic job. The man was a professional from beginning to end of the project . He had a vision and he made it happen . My basement has been transformed top to bottom and I could not be happier with the work . Bob gave a fair price and finished the project incredibly fast . I would highly recommend him to anyone looking to do a project in their home . My basement could not look any better "

Vince V on June 2025


Kiwi Restorations, LLC

5.00(
2
)
Approved Pro

Kiwi Restorations, LLC

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 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.

"Shane and his crew were fantastic. From our first meeting through completion the renovation was seamless. Great attention to detail, neat, clean and respectful of my house. Finished on time and on budget. Highly recommended."

Mark K on February 2024

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.

"Shane and his crew were fantastic. From our first meeting through completion the renovation was seamless. Great attention to detail, neat, clean and respectful of my house. Finished on time and on budget. Highly recommended."

Mark K on February 2024


The OCD Painter

5.00(
3
)
Approved Pro

The OCD Painter

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

The OCD Painter is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have several years of hands on experience to provide innovative ideas and suggestions tailored to your projects. 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!

"Very professional and courteous. Pays attention to detail and does not rush the work. Great quality painting and service."

Alfonso G on July 2021

The OCD Painter is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have several years of hands on experience to provide innovative ideas and suggestions tailored to your projects. 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!

"Very professional and courteous. Pays attention to detail and does not rush the work. Great quality painting and service."

Alfonso G on July 2021


Three Village Home Improvement

5.00(
4
)
Approved Pro

Three Village Home Improvement

5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
64 years of experience

We're a forth generation home improvement company; locally owned and operated that values honesty and integrity and treats your home as if it were our own. We offer a variety of Home Improvement services that are customizable to each individual project. We specialize in Bathroom 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!

"Wonderful to work with, great craftsman, and efficient. They do wonderful work.."

MaryGrace B on October 2023

We're a forth generation home improvement company; locally owned and operated that values honesty and integrity and treats your home as if it were our own. We offer a variety of Home Improvement services that are customizable to each individual project. We specialize in Bathroom 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!

"Wonderful to work with, great craftsman, and efficient. They do wonderful work.."

MaryGrace B on October 2023

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FAQs for basement remodeling projects in Central Islip, 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 Central Islip, NY homeowners’ guide to basement remodelings

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