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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon53
    Verified basement remodels reviews

Find Basement remodelers in Central Islip

Avatar for Unique Interior Finishes
Unique Interior Finishes
4.8(
39
)
Basement - Remodel

Serving Central Islip, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Customers say: True professional

"Excellent quality work. Project was a large basement, over 1500 sq ft. Always on time and very responsible. Reviewed progress on a regular basis and customized everything according to our wishes. Very happy with the final product. Glad we hired the pros. Highly recommended."
Monica`s basement
monica`s basement
monica`s basement
Monica`s basement
Monica`s basement

+26

Response time12 hrs
Response rate95%
26 neighbors recently requested a quote
Avatar for Northgate Home Improvement Corp.
Northgate Home Improvement Corp.
4.9(
93
)
Basement - Remodel

Serving Central Islip, NY and surrounding areas

Approved

In business since 1985

Free estimates

Warranties offered

"Jeff did a great job on our complete basement bathroom remodel last December so we asked him to do a small job of installing a vanity. The job was done quickly and efficiently. The price was reasonable. Everything was cleaned up. I highly recommend Northgate Home Improvement and will gladly hire them in the future."
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+56

Response time7 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for Arthur DeRosa Building and Remodeling
Arthur DeRosa Building and Remodeling
4.7(
13
)
Basement - Remodel

Serving Central Islip, NY and surrounding areas

Approved

In business since 1986

Free estimates

Customers say: True professional

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

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+20

Response time2 days
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Alta Renovations Corp
Alta Renovations Corp
5.0(
28
)
Basement - Remodel

Serving Central Islip, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Warranties offered

"Would definitely recommend Alta Renovations Corp, they are so professional and I am completely satisfied with their work! I would definitely use them again for any home remodeling!"
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+26

Response time8 hrs
6 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for BuildingLI.com - BLI Facilities LLC
BuildingLI.com - BLI Facilities LLC
5.0(
32
)
Basement - Remodel

Serving Central Islip, 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 Golden Ladder Construction
Golden Ladder Construction
5.0(
11
)
Basement - Remodel

Serving Central Islip, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2013

Free estimates

Warranties offered

"Joe worked at our home a few times. He remodeled an All Season Sunroom, worked creatively with cedar planking, installed an electric fireplace, built a new pantry, installed flooring, installed new dry wall kitchen and in bathroom, etc. etc. We are so happy we chose Joe to work in our home. Above all he is conscientious, trustworthy, gives a fair price and does a great job!"
Custom Cabinetry
LED mirror
Custom Vanity
Niche & Bench
Multifunctional

+53

Response time1 hour
Response rate93%
2 neighbors recently requested a quote
Avatar for Cocos Custom Building LLC
Cocos Custom Building LLC
4.8(
8
)
Basement - Remodel

Serving Central Islip, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Warranties offered

"We've never had luck with major home modifications—this was smooth sailing the entire way. Our project was a teardown and complete re-side, and Cocos did a fantastic job. We have a tricky home with a lot of angles that make no sense—Cocos did a brilliant job strategizing how everything should be executed, and the 50-year-old home looks brand new. Danielle, Keith and Matt not only executed at the highest level, they stayed in communication literally every day to make sure there were no surprises and that we were happy with the progress. If you're looking for a home siding partner, don't hesitate to hire Cocos. They were top notch and we are very happy/"
Exterior Remodel
Modular Set And Exterior Finish Project
Exterior Remodel
Modular Set And Exterior Finish Project
Exterior Remodel

+31

Response time12 hrs
Response rate100%
43 neighbors recently requested a quote
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Basement Remodel questions, answered by experts

When choosing materials for finishing basement walls, consider factors such as moisture resistance, durability, and fire resistance. Opt for materials specifically designed for basement environments, like moisture-resistant drywall or cement board. Insulation with vapor barriers can help regulate temperature and prevent condensation. Consider using mold-resistant paints or coatings. 

Research and consult with experts to select materials that are suitable for your specific basement conditions and intended use. Prioritize quality and compatibility to achieve long-lasting and aesthetically pleasing results.

A finished basement must have a heat and electrical supply with an entrance that meets building code requirements, such as a stairwell to the home's main living space. It often must include finished walls, ceilings, and floors. If the finished basement includes a bedroom, it should have a heat source, an egress window, and a closet.

Remodeling, as opposed to finishing, means altering an already finished basement by adding a bathroom, bedroom, or living area.

Costs are guided by renovation scope, materials chosen, project duration, structural needs, and labor. Prioritizing tasks prevents unforeseen expenses.

Home improvements that increase value offer a high return on investment (ROI) and can enhance your quality of life. Upgrades to your home’s curb appeal often add the most value, with garage door replacement having one of the best ROIs at 93%. Other high-value exterior projects include replacing your front door, upgrading siding and roofing, installing a stone veneer, adding new windows, and landscaping. For interior renovations, a fresh coat of paint provides an excellent ROI. Major projects like a kitchen remodel or upgrading appliances and HVAC systems also add significant value, as potential buyers appreciate the peace of mind that new equipment provides.

Yes, in most cases, finishing a basement is worth the cost. The project adds valuable, usable square footage to your home and typically provides a return on investment (ROI) of 70% to 75%. For example, an average basement refinishing project costing $32,000 could add between $22,400 and $24,000 to your property's value. The final value added depends on factors like your location, the quality of materials and workmanship, and the features you include, such as a living space, bedroom, or bathroom. To be officially counted in your home's total square footage, the finished space must comply with all local building codes, including requirements for points of egress. However, in areas prone to flooding, a finished basement might be seen as a liability by potential buyers and could potentially decrease your home's value.

The Central Islip, NY homeowners’ guide to basement remodels

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