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TRUSTED BY SYOSSET, NY HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon68
    Verified basement remodels reviews

Top-Rated Basement remodelers in Syosset - Updated Nov 2026

Avatar for Heartland Village General Contracting and Handyman Services
Heartland Village General Contracting and Handyman Services
4.8(
208
)
Basement - Remodel

Serving Syosset, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1994

Free estimates

Emergency services offered

"We needed some work done in our basement and needed the work done quickly. Called Harvey and the work was done in 3 days and at a fair price. They remodeled our home in the poconos in less than one month and we get so many compliments from our renters. We will definitely use their services again. Thanks Harvey!"
FLOORING
Remodel basements
Bathroom renovation
KITCHEN REMODEL
Decks

+151

Response time1 day
13 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for JBL HOME IMPROVEMENTS INC
JBL HOME IMPROVEMENTS INC
4.6(
272
)
Basement - Remodel

Serving Syosset, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Warranties offered

"They were easy to work with and the job came out great. After the basement remodel, we had them back to install bathroom and other cabinets. All went well, even with a different crew. Dave knows how to guide the customer to make good choices. Company is very dependable and prices are reasonable/competitive."
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+23

Response time1 day
Response rate100%
10 neighbors recently requested a quote
Avatar for Robert's Remodeling Professionals, Inc.
Robert's Remodeling Professionals, Inc.
4.5(
43
)
Basement - Remodel

Serving Syosset, NY and surrounding areas

Approved

In business since 1989

Free estimates

Customers say: Quick response

"Robert is a trustworthy and skilled professional. Our family has engaged his services on multiple occasions -- most recently to install flooring in our basement -- and plan to do so in the future for additional remodeling work. Robert and team are reliable and perform great work (at a great value)."
Work
3 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Arthur DeRosa Building and Remodeling
Arthur DeRosa Building and Remodeling
4.7(
13
)
Basement - Remodel

Serving Syosset, NY and surrounding areas

Approved

In business since 1986

Free estimates

Customers say: True professional

"Arthur gave us a fair and competitive estimate and was able to start work quickly thereafter. He and his team did an excellent job gutting and totally remodeling two bathrooms and a closet as well as redoing some of the wood flooring, moving vents, and moving hallways. Arthur himself was at the home everyday and did the important work himself. He also went the extra mile in helping us with small projects around the major project as they came up. He was extremely responsive in provided us with timely updates. When complications occurred (due to the house having not been renovated in 40 years) he was clear and helpful in keeping the project on schedule. He was extremely honest and I trusted him to be alone in my house for weeks on end with his team. I would/plan to work with Arthur again in the future for my home renovation projects."
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+20

Response time2 days
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Northgate Home Improvement Corp.
Northgate Home Improvement Corp.
4.9(
94
)
Basement - Remodel

Serving Syosset, NY and surrounding areas

Approved

In business since 1985

Free estimates

Warranties offered

"Jeff & Crew came and did an amazing job just as they did when we had our whole basement remodeled. We hired Northgate this year once again (they remodeled and added a new bathroom to our basement back in February 2023) to redo and expand our outdoor deck to almost 1,000 square feet. Jeff and crew did an amazing job and went above and beyond. I cannot recommend or say enough about them. Jeff not only does an amazing job but added even extras that were unexpected and helped fix things that were not part of his job. I will definitely be hiring them again once I can afford more renovations! Would recommend Northgate to anyone and everyone."
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+56

Response time7 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Nunez Construction and Painting
Nunez Construction and Painting
4.5(
343
)
Basement - Remodel

Serving Syosset, NY and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"After my family and I decided to move back to the old Queens house I grew up in to live above my mom, we quickly realized there were many things that needed to be repaired. I've counted on Nunez Construction and Painting for all of it. The first job they did was to repair some siding on the house. Prior to our move, we then wanted to gut and remodel the second floor apartment where we live. Mr. Nunez and his crew did a great job. More recently, our basement became flooded with sewage. We called him again to help with this project and install a new floor. We are always very satisfied customers. The work is great and reasonably priced. We can't thank him enough for being a wonderful person and company to work with."
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+32

Response time11 hrs
1 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for BuildingLI.com - BLI Facilities LLC
BuildingLI.com - BLI Facilities LLC
5.0(
32
)
Basement - Remodel

Serving Syosset, NY and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"I hired Long Island handyman construction group to remodel a 400sf basement and bathroom in Melville. They were priced in the middle compared to other bids. I picked them thanks to their out of the box advice which saved me thousands of dollars. There was one problem with the plumbing which cost an extra 1800 dollars. The owner settled with me 50/50 even though it was a pre-existing issue. The project was started early and completed early. All mess was cleaned up and the crew was very friendly and fully aware. Very reputable guys and very easy to deal with. Thanks Moises and Eddy."
before demo
kitchen demolition
demolition complete
kitchen tile job in progress
kitchen tile

+172

Response time7 hrs
Recommended by76%of homeowners
Avatar for LI Developers, LLC
LI Developers, LLC
4.7(
175
)
Basement - Remodel

Serving Syosset, NY and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

"We hired LI Developers for a complete gut of our basement bathroom. They were always right on time, courteous and respectful. They coordinated all permits with the town, architects and outside contractors and provided professional opinions and input throughout the entire process. The end result was beautiful! We are very pleased and would highly recommend this company."
Contemporary Kitchen
Livingroom & Dining room
Master Bathroom
Full Bath
LiD 500

+5

Response time1 day
1 neighbors recently requested a quote
Recommended by79%of homeowners
Classic Home Design & Construction, LLC
5.0(
9
)
Basement - Remodel

Serving Syosset, NY and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Robert did an excellent job with our kitchen remodel (replaced all cabinets, countertops & backsplash). His quote was well below the others and more comprehensive. Added costs were kept to a minimum and explained in advance. All of his workers were courteous and professional."
Westbury 2021 Bath
Westbury 2021 Bath
Westbury 2021 Bath
Westbury reverse Gable remodel
Westbury 2021 Backyard

+38

Response time10 hrs
Response rate91%
4 neighbors recently requested a quote
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Basement Remodel FAQs, answered by experts

Some older homes have toilets in the basement to combat sewage backups. This type of toilet, also known as a Pittsburgh potty, acted as a safety valve over the incoming sewer line. If a line backed up, it would back up into the toilet because it was the lowest fixture in the home, keeping it out of sight and away from the finished areas of the house.

Basement toilets were also used by workers with messy jobs, like those who worked in coal mines or steel mills. This way, they could clean up and avoid tracking dirt through their home.

Unless you have extensive experience in construction work, remodeling a basement is best left to a professional. There are several tasks associated with this project that require exact precision, including:

  • Replacing insulation 

  • Replacing carpet or other flooring 

  • Adding heating and cooling

  • Adjusting or adding walls and doors

  • Altering or adding plumbing elements

If any of these elements is done incorrectly, it could severely impact the quality of your basement remodel and be dangerous. Changing a basement often comes with code safety requirements, like egress windows and proper ventilation. Therefore, leaving it up to a professional is often the best decision.

It’s less expensive to finish your basement than it is to build an addition to your home. The average cost to refinish a basement is $32,000 (between $7 and $23 per square foot) while building an addition to your home costs $50,325 ($80 to $210 per square foot). Depending on the size of your basement and other factors, like moving plumbing and electrical, refinishing a basement is a more cost-effective option in most cases.

Basements are commonly converted into game rooms. The potential challenges you may run into include controlling moisture, working with low ceilings, limited natural light, and the need for additional electrical or HVAC work. Addressing these issues can add to the total cost, but it ensures a comfortable and functional space.

It is generally more affordable to finish a basement than an attic, though it ultimately depends on how you plan to use the space. The average cost to finish a basement ranges from $7 to $23 per square foot, while attic renovation costs $30 to $60 per square foot. However, a simple attic conversion to a storage space will cost significantly less.

The Syosset, NY homeowners’ guide to basement remodels

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