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Top-Rated Basement remodelers in Montauk - Updated Nov 2026

Avatar for Pristine East End Contracting
Pristine East End Contracting
4.8(
81
)
Basement - Remodel

Serving Montauk, NY and surrounding areas

Approved

In business since 2006

Free estimates

Credit card accepted

"Nick did an amazing job - we love the new Built-In cabinets and Fireplace surround. He helped us think through the design and than delivered against everything he said he would do. Compared to others we got quotes from, Nick's price was fair considering the amount of work that was performed. He used only highest quality materials, was very detailed in his proposal to ensure there were no misunderstanding's, and was meticulous to ensure the final product was of the best quality. Everything Nick did was custom for the space - my wife was scared of the size of TV I bought to mount above the fireplace, but Nick made it work - customized everything around it to ensure the TV fit in perfectly and didn't dominate the space. Nick did everything from re-routing wiring, HVAC, designing and building cabinets, sanding, painting, installing speakers, mantle, Stone tile around FP, TV, etc.... There was no nickel and diming - the price and the work we agreed to up front remained the same and Nick was true to his word which seems to be rare these days. We will definitely hire Nick again in the future for other home remodeling projects"
Project Photos
Recommended by95%of homeowners
Avatar for Alta Renovations Corp
Alta Renovations Corp
5.0(
30
)
Basement - Remodel

Serving Montauk, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Warranties offered

"Jose and his team were the best team I have ever had work on a job in my house. Jose went WAY above and beyond to make sure we had our basement back in order in a timely fashion. He was willing to work after hours if needed to help get our finished basement back after we had suffered a sewage leak and had to wait until mitigation was complete. A 3-4 day job was complete in 2 days! And one of his workers, Carlos, from the second day stuck around to help me get the heavy and large items back into the basement. There was a previous review that said Jose was very emphatic to their needs and that is so true. That review actual was what made me give Jose a call. I wish there was a word better than highly recommend. Thank you Jose and your entire team!"
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+26

Response time8 hrs
22 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 Montauk, 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 BR Prime Remodeling
BR Prime Remodeling
5.0(
10
)
Basement - Remodel

Serving Montauk, NY and surrounding areas

Approved

In business since 2010

Free estimates

Small jobs welcome

"I met Ricardo through my neighbor when she was remodeling her condo. I am so glad I did! Ricardo was very professional, clean and fast. He shared his timeline for the bathroom remodel and he kept to it I am so happy with the work I will be using him down the road for when I redo my kitchen. I would 100% recommend!!!!"
Shower
Floor detail
Bathroom 1
Bath Tub
Bathroom

+16

Response time6 hrs
Response rate100%
Recommended by44%of homeowners
Avatar for Loja Renovations Fine Carpentry LLC
Loja Renovations Fine Carpentry LLC
5.0(
27
)
Basement - Remodel

Serving Montauk, NY and surrounding areas

Approved

In business since 2024

Free estimates

Small jobs welcome

"This was the absolute best home updates I have ever received they professionalism and efficiency was perfect they are amazing and have already referred them to multiple family and friends will continue to use them for everything in my home more then please all staff were great"
Bathroom
Bathroom
Bathroom
Bathroom
Bathroom

+5

Response time1 day
Response rate100%
Avatar for Agate & Co. Builders
Agate & Co. Builders
5.0(
13
)
Basement - Remodel

Serving Montauk, NY and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"Excellent job. Showed up on time and did a nice clean up after. This job was to replace a hole in the ceiling with sheetrock and painting. Very good work; I can't even see where he patched it, so smooth. I will definitely use James Agate Contracting again."
Sag Harbor Re-Build
Sag Harbor Re-Build
Sag Harbor Re-Build
Sag Harbor Re-Build
Sag Harbor Re-Build

+40

Response time2 days
13 neighbors recently requested a quote
Recommended by92%of homeowners
MGT Construction, Corp.
4.1(
17
)
Basement - Remodel

Serving Montauk, NY and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"The construction company, MGT Construction has just completed our +/-600 sq foot deck at our home in Southold. MGT managed the planning: We were determined to build the deck per Southold Town code using Timber-Tech composite decking and railings per their specifications. After we had the survey done Steven coordinated with their architect and liaised all building inspections. He was instrumental in all follow-ups with the town until final approval of the permit. We sourced the pressure-treated framing lumber from Amagansett Lumber and with four feet deep footings the underlying structure is solid and constructed to last 30 years, which is also the guaranteed life of the decking. MGT Construction excels in the carpentry aspect of the decking. They made sure the planks were correctly aligned and the surrounding picture frame planks were precisely fitted. This was also true as well regarding the fitting of the railings. We opted for “drink rails” and their finishing on those is superb. Our overall impression of the construction staff was that they were always courteous and friendly. We did however make the observation that the workers should pay attention to their attire, which at times was needlessly sloppy and awkward. However, they were hard workers and respectful. An electrical subcontractor had to redo work because a supervisor was not on the site. The work was corrected and promptly made without complaint. Cleanup was done in a timely manner and to our satisfaction. Having had other construction work done on homes I can honestly say, MGT Carpentry was professional and their work was excellent. I highly recommend them."
Greenport Second Floor Addition
Orient Complete Ground up House
Greenport Complete Ground Up House
Kitchen Remodeling Project
Orient Complete House Build - Bathrooms

+172

Response time1 day
3 neighbors recently requested a quote
Recommended by75%of homeowners
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FAQs for basement remodeling projects in Montauk, 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 Montauk, NY homeowners’ guide to basement remodelings

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