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Basement remodelers in West Islip

Avatar for Exterior Team Home Services, Inc.
Exterior Team Home Services, Inc.
359 North Ocean Avenue Apt. 1
4.95(
22
)
Approved Pro
Exterior Team Home Services, Inc.
359 North Ocean Avenue Apt. 1
4.95(
22
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
9 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


Coastal Carpentry Corp.
110 Woodcut Drive
5.00(
1
)
Approved Pro
Coastal Carpentry Corp.
110 Woodcut Drive
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

Coastal Carpentry Corp, is 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.

"They were very easy to work with and I enjoyed their company."

Chad N on July 2021

Coastal Carpentry Corp, is 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.

"They were very easy to work with and I enjoyed their company."

Chad N on July 2021


Kiwi Restorations, LLC
194 Mill Road
5.00(
2
)
Approved Pro
Kiwi Restorations, LLC
194 Mill Road
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 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


Avatar for Premier Builders & Construction
Premier Builders & Construction
116 St. Marks Place
5.00(
4
)
Approved Pro
Premier Builders & Construction
116 St. Marks Place
5.00(
4
)
Approved Pro
Customers say: Quick response
4 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We believe in giving our absolute best in all of our projects, no matter how big or small. You will find us to be competitively priced, with close attention to the details of each and every project. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business, so please ask us for references.

"Premier Builders was trustworthy and a pleasure to work with. A+ job. Would recommend to anyone remodeling their home."

Mike V on October 2022

We pride our company on reliability, great communication, integrity, and quality work. We believe in giving our absolute best in all of our projects, no matter how big or small. You will find us to be competitively priced, with close attention to the details of each and every project. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business, so please ask us for references.

"Premier Builders was trustworthy and a pleasure to work with. A+ job. Would recommend to anyone remodeling their home."

Mike V on October 2022


Avatar for Granville House Victorians L.L.C.
Granville House Victorians L.L.C.
16 Riverdale Ave
5.00(
1
)
Approved Pro
Granville House Victorians L.L.C.
16 Riverdale Ave
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

The linkedin site will tell our Story. Clients will take advantage of Granville's in house Design capabilities with CAD. see granvillevictorians.com for examples of our work

"Granville House Victorians L.L.C. is extremely skilled and professional. My Victorian style house came out better than I could have dreamed. Granville took care of everything and they are extremely knowledgeable in what they do."

Jonathan P on January 2023

The linkedin site will tell our Story. Clients will take advantage of Granville's in house Design capabilities with CAD. see granvillevictorians.com for examples of our work

"Granville House Victorians L.L.C. is extremely skilled and professional. My Victorian style house came out better than I could have dreamed. Granville took care of everything and they are extremely knowledgeable in what they do."

Jonathan P on January 2023


The OCD Painter
17 Lime Tree Drive
5.00(
3
)
Approved Pro
The OCD Painter
17 Lime Tree Drive
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 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


Avatar for Stone's Construction Corporation
Stone's Construction Corporation
1496 Broadstreet
4.71(
69
)
Approved Pro
Stone's Construction Corporation
1496 Broadstreet
4.71(
69
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
30 local quotes requested

Stone's Construction Corporation brings an unmatched commitment to excellence to your home improvement project. We deliver unsurpassed professionalism and expertise. We are a family owned business, we have been established since 1986 and have an excellent record with consumer affairs. Call us today! License # H18C8210000

"I gave a deposit to start a job. A contract was never signed and work was never started. I decided to go in a different direction, Provider initially offered only a $250 refund, I deemed that unacceptable. Provider now has not responded to any attempted communication since approximately May 7."

vincent p on May 2025

Stone's Construction Corporation brings an unmatched commitment to excellence to your home improvement project. We deliver unsurpassed professionalism and expertise. We are a family owned business, we have been established since 1986 and have an excellent record with consumer affairs. Call us today! License # H18C8210000

"I gave a deposit to start a job. A contract was never signed and work was never started. I decided to go in a different direction, Provider initially offered only a $250 refund, I deemed that unacceptable. Provider now has not responded to any attempted communication since approximately May 7."

vincent p on May 2025


Iron Mike Construction & Design
33 Elizabeth Way
New on HomeAdvisorNew on Angi
Approved Pro
Iron Mike Construction & Design
33 Elizabeth Way
New on AngiNew on HomeAdvisor
Approved Pro
21 years of experience
Free onsite estimate

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.

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.


Avatar for Art Construction
Art Construction
38 Evergreen Avenue
4.64(
33
)
Approved Pro
Art Construction
38 Evergreen Avenue
4.64(
33
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
18 years of experience

We are a locally owned and operated company with over 10 years of industry experience. We value honesty and integrity in all aspects of our business. We offer a variety of home improvement services that are customizable to each individual project. We specialize in handyman/carpentry work and a variety of related service and repair 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 with our clients and guarantee your satisfaction!

"Billi and his father did amazing job. We have our basement remodeled.after a disaster made by another incompetent contractor form thumbtack(Tyler Macy). Billi was very nice help us put everything together. Fix whatever mistakes done by previous guy.They were also reasonable on price & get the job done exactly on time.I recommend Art construction for quality, honest & reasonable cost.Thank you Billi."

saba b on July 2024

We are a locally owned and operated company with over 10 years of industry experience. We value honesty and integrity in all aspects of our business. We offer a variety of home improvement services that are customizable to each individual project. We specialize in handyman/carpentry work and a variety of related service and repair 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 with our clients and guarantee your satisfaction!

"Billi and his father did amazing job. We have our basement remodeled.after a disaster made by another incompetent contractor form thumbtack(Tyler Macy). Billi was very nice help us put everything together. Fix whatever mistakes done by previous guy.They were also reasonable on price & get the job done exactly on time.I recommend Art construction for quality, honest & reasonable cost.Thank you Billi."

saba b on July 2024


Avatar for Top Tier Home Renovations
Top Tier Home Renovations
59 Fallwood Pkwy
5.00(
1
)
Approved Pro
Top Tier Home Renovations
59 Fallwood Pkwy
5.00(
1
)
Approved Pro
6 years of experience
Free onsite estimate

Welcome to Top Tier Home Renovations! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

"I had an amazing experience with this construction company! They went above and beyond not only in the quality of the work, which exceeded what we originally asked for, but also in their exceptional customer service. What truly stood out to me was how personalized the entire process felt. The owner personally came to my home, took the time to really listen to my needs, and offered invaluable advice that made a huge difference in the final outcome. It?s rare to find that level of care and attention these days. They are honest, incredibly skilled at what they do, and an absolute pleasure to work with. I highly recommend this company to anyone looking for reliable, top-quality construction services. You won?t be disappointed!"

Tatiana M on June 2025

Welcome to Top Tier Home Renovations! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

"I had an amazing experience with this construction company! They went above and beyond not only in the quality of the work, which exceeded what we originally asked for, but also in their exceptional customer service. What truly stood out to me was how personalized the entire process felt. The owner personally came to my home, took the time to really listen to my needs, and offered invaluable advice that made a huge difference in the final outcome. It?s rare to find that level of care and attention these days. They are honest, incredibly skilled at what they do, and an absolute pleasure to work with. I highly recommend this company to anyone looking for reliable, top-quality construction services. You won?t be disappointed!"

Tatiana M on June 2025

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FAQs for basement remodeling projects in West 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 West Islip, NY homeowners’ guide to basement remodelings
From average costs to expert advice, get all the answers you need to get your job done.
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Jun 26, 2025
Jun 26, 2025
Budget for bedroom remodel costs based on factors such as bedroom size, remodel type, features, materials, labor, and more.
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Apr 19, 2025
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Jun 16, 2025
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BRIGHT OPEN ATTIC SPACE
Jun 10, 2025
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Apr 8, 2025
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built-in outdoor kitchen with grill and sink
Apr 30, 2025
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