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Find Basement remodelers in Cold Spring Harbor

Avatar for JBL HOME IMPROVEMENTS INC
JBL HOME IMPROVEMENTS INC
4.6(
271
)
Basement - Remodel

Serving Cold Spring Harbor, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Warranties offered

"I cannot say enough about these guys. Their prices were reasonable and about average compared to other companies. The owner, Dave was great to work with, he kept us updated on a daily basis, and was there every morning to look things over and help get the guys set up. The workers were there at 7 am every day. Work was done well within the given timeframe. Everything was left clean each day. They built a bedroom in our basement, and gutted and remodeled a bathroom, we couldn’t be happier with both projects. Very professional, highly recommend."
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+23

Response time1 day
Response rate100%
10 neighbors recently requested a quote
Avatar for Northgate Home Improvement Corp.
Northgate Home Improvement Corp.
4.9(
93
)
Basement - Remodel

Serving Cold Spring Harbor, 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%
2 neighbors recently requested a quote
Avatar for Alta Renovations Corp
Alta Renovations Corp
5.0(
30
)
Basement - Remodel

Serving Cold Spring Harbor, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Warranties offered

"Jose Is a fantastic choice for a remodeling job. He fully remodeled my kitchen and first floor including moving walls and installing new hardwood floors. Not only are his carpentry skills exceptional but he also has an eye for detail. He is meticulous and finished each project to my high standards. Jose is a great choice as he has the skills and knowledge to fully complete any job from demo to finishing and painting."
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+26

Response time8 hrs
21 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Arthur DeRosa Building and Remodeling
Arthur DeRosa Building and Remodeling
4.7(
13
)
Basement - Remodel

Serving Cold Spring Harbor, 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
5 neighbors recently requested a quote
Recommended by100%of homeowners
Classic Home Design & Construction, LLC
5.0(
9
)
Basement - Remodel

Serving Cold Spring Harbor, NY and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Definitely I would recommend this company to do remodeling work, bathroom and kitchen. They did a tremendous job and very professional. As a homeowner, you want to hire a company that reliable, neat, detail oriented, quick and efficient. For that, I am totally satisfied."
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
Avatar for BuildingLI.com - BLI Facilities LLC
BuildingLI.com - BLI Facilities LLC
5.0(
32
)
Basement - Remodel

Serving Cold Spring Harbor, 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 Jag Construction & Maintenance Inc.
Jag Construction & Maintenance Inc.
5.0(
23
)
Basement - Remodel

Serving Cold Spring Harbor, NY and surrounding areas

Approved

In business since 2020

Free estimates

Customers say: True professional

"Walter from Jag construction has done a few projects for us as well as some commercial work at our building to mention a few. We started with our commercial property in Smithtown. He came in and went right to work and the timeline was fantastic. We called him to our home to finish our basement thereafter. I was so impressed I also had him reconfigure our first floor laundry room as well. This year he’s doing a few more projects here! It’s not everyday you find a professional that treats your home like his own and his recommendations are always well planned and precise which to me is greatly appreciated. I can’t say enough good things about this contractor and would have him do any project beyond my scope at either our home or business alike. A++++ Frank and Mary O’Donnell Speonk, NY"
Handymen Project
Handymen Project
Handymen Project
Handymen Project
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+37

6 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for LI Developers, LLC
LI Developers, LLC
4.7(
175
)
Basement - Remodel

Serving Cold Spring Harbor, NY and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

"I hired Jakob and LI developers to remodel my Kitchen and first floor bathroom. Jakob was attentive to my wishes and very detail oriented. His crew showed up everyday ready to work and the time of the turn around was great as I still needed to live in the house. Beautiful work and Jakob was always there either over the phone or in person when I needed anything. Great outcome overall highly recommend."
Contemporary Kitchen
Livingroom & Dining room
Master Bathroom
Full Bath
LiD 500

+5

Response time1 day
Recommended by79%of homeowners
Avatar for Interior Source
Interior Source
4.8(
50
)
Basement - Remodel

Serving Cold Spring Harbor, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Warranties offered

"They were incredibly professional, attentive to detail, and managed the project seamlessly, staying on schedule and within budget. We would highly recommend them to anyone considering a basement remodel."
Dr. Arif Kitchen
Remodeling - Kitchen & Bathroom Project
Kitchen and Bath Remodeling Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project

+30

Response time2 days
Response rate100%
7 neighbors recently requested a quote
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Showing 1-10 of 540
FAQs for basement remodeling projects in Cold Spring Harbor, 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 Cold Spring Harbor, NY homeowners’ guide to basement remodelings

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