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Find Basement remodelers in Southold

Avatar for Greg Home Improvement, Inc.
Greg Home Improvement, Inc.
4.8(
80
)

Serving Southold, NY and surrounding areas

Approved

In business since 1997

Free estimates

Warranties offered

"Hired Greg for a full gut and remodel of a bathroom. Greg was very competent, personable, and took the time to understand exactly what we wanted. He made us feel like we were in good hands. He took the time to make sure things were done the right way. The result was top notch, couldn't have asked for more. I would definitely use this company again!"
LIVING/DINING/KITCHEN IN PROGRESS
LIVING/DINING/KITCHEN IN PROGRESS
LIVING/DINING/KITCHEN IN PROGRESS
LIVING/DINING/KITCHEN IN PROGRESS
LIVING/DINING/KITCHEN IN PROGRESS

+101

Recommended by96%of homeowners
Avatar for Alta Renovations Corp
Alta Renovations Corp
5.0(
25
)

Serving Southold, 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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+26

Response time8 hrs
7 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Loja Renovations Fine Carpentry LLC
Loja Renovations Fine Carpentry LLC
5.0(
22
)

Serving Southold, NY and surrounding areas

Approved

In business since 2024

Free estimates

Small jobs welcome

"Very professional and polite. Came on a Sunday stayed late to try and finish it all in one day. Quality of the work was excellent. They took their time and made sure all ceiling fans and light fixtures were in stalled properly and functioning correctly. Returned a day later and installed 2 new toilets. Highly recommend them."
Bathroom
Bathroom
Bathroom
Bathroom
Bathroom

+5

Response time1 day
Avatar for Refined Renovators & Design
Refined Renovators & Design
5.0(
8
)

Serving Southold, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"Basement looks great , better then we ever expected .. the workers were on time and very respectful.. I would definitely recommend .. we will be using this company in the future for our next remodel."
comfortable spaces
sunroom
Beautiful Bathroom
Primary Bedroom
custom cabinets

+8

Response time5 hrs
Response rate93%
17 neighbors recently requested a quote
Avatar for Arthur DeRosa Building and Remodeling
Arthur DeRosa Building and Remodeling
5.0(
12
)

Serving Southold, NY and surrounding areas

Approved

In business since 1986

Free estimates

Customers say: Quick response

"There are not many people in today’s world that really cares about how they are perceived . A true craftsmen is honorable and able to listen. Quality and precise precision make every job memorable . Arthur takes pride in everything he does. You could not find a better construction company , run with complete honesty and quality work. Doesn’t forget his patience and caring for what his customer wants. Hire this amazing company…you will not regret it. Your satisfaction gives him joy in his craftsmanship ?"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+20

Response time2 days
5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Premier Home Remodeling & Design
Premier Home Remodeling & Design
4.5(
21
)

Serving Southold, NY and surrounding areas

Approved

In business since 2019

Free estimates

Small jobs welcome

"Premier home remodeling did a amazing job on a big renovation we had done on our home. We had our unfinished basement, kitchen and 2 bathrooms remodeled. Charles and the crew were professional, clean, and super friendly. They had great suggestions, and designed our kitchen a way me and my husband never thought could be done. Our bathrooms are beautiful, and our basement is a great new living space to our home. We will definitely use them again and will be recommending them to all of our family and friends. Thank you premier!"
custom niche
vanity and tops
vanity and tops
cabinets
mirror

+53

Response time2 days
Response rate87%
7 neighbors recently requested a quote
Avatar for Agate & Co. Builders
Agate & Co. Builders
5.0(
13
)

Serving Southold, 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
14 neighbors recently requested a quote
Recommended by92%of homeowners
MGT Construction, Corp.
4.3(
15
)

Serving Southold, NY and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"This was our first remodeling project in our home. Steven was such a pleasure to work with. He was great during the estimate process, communicating and got the project started as quickly as possible. Juan and his workers were fantastic. They were quiet, hard working and great at what they do! I couldn’t be happier with my bathroom."
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
21 neighbors recently requested a quote
Recommended by80%of homeowners
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FAQs for basement remodeling projects in Southold, 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 Southold, NY homeowners’ guide to basement remodelings

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