Top-rated basement remodelers.

Get matched with top basement remodelers in Brentwood, NY

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Basement remodelers in Brentwood

Avatar for Stars and Stripes Home Improvement LLC
Stars and Stripes Home Improvement LLC
4.8(
298
)

Serving Brentwood, NY and surrounding areas

Angi Approved

Super Service Award Winner

In business since 2017

Free estimates

Emergency services offered

"I can’t recommend Stars and Stripes highly enough for anyone considering a home renovation. From big projects like installing new countertops and a backsplash to smaller details like fixing the track on my sliding closet doors, everything was completed with exceptional care and attention to detail. What really sets them apart, though, is the trust factor. I’m not someone who’s usually comfortable leaving people alone in my home—but with Stars and Stripes, I never once had to worry. They were respectful, reliable, and I always felt my home was in good hands. It's rare to find that kind of peace of mind with contractors, and it's what will keep me coming back for future projects."
Remodeling - Kitchen & Bathroom Project
VEGA KITCHEN
Painting - Interior Project
Complete Renovation
Basement

+699

Response time3 days
12 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for All Precision Home Improvement, Inc.
All Precision Home Improvement, Inc.
4.9(
51
)

Serving Brentwood, NY and surrounding areas

Angi Approved

In business since 2016

Free estimates

Credit card accepted

"It was awesome working with Anthony, and we’re so happy with the deck he built. He also was super responsive in providing all documentation I needed to obtain a permit. Will be using him for more work! High recommend!"
Before repair
Before repair
Before repair
Before repair
Starting the repair

+328

Response time6 hrs
2 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for VP Quality Contracting
VP Quality Contracting
4.9(
58
)

Serving Brentwood, NY and surrounding areas

Angi Approved

In business since 2008

Free estimates

Emergency services offered

"Vinny and his work crew were very reliable the timeline for the project was perfect there workmanship is beyond what I expected I absolutely love my new bathroom I'm currently looking into redoing my kitchen and I will only use VP Quality contracting I highly recommend this company"
New Door
New Door
Old Door
Old Door
Old Bathroom

+26

Response time9 hrs
Response rate93%
Recommended by91%of homeowners
Avatar for Exterior Team Home Services, Inc.
Exterior Team Home Services, Inc.
5.0(
22
)

Serving Brentwood, NY and surrounding areas

Angi Approved

In business since 2016

Free estimates

Warranties offered

"Ronald and his Team did an excellent job for a very good price. Very professional. Pointed out some things that needed attention and then took care of it. The workmanship and customer service is better than any other craftman I have ever hired. I will keep Exterior Team Home Service number available to recommend to anyone that asks if "I know someone who...." I trust Exterior Team Home and will use them in the future."
Roof in process
Roof done
Roof in process
Job done in Ronkonkoma
Job done

+1

Response time4 hrs
Recommended by95%of homeowners
Avatar for A.S.M. Home Improvements
A.S.M. Home Improvements
5.0(
7
)

Serving Brentwood, NY and surrounding areas

Angi Approved

In business since 2021

Free estimates

Credit card accepted

"Anthony is the consummate professional. He worked with us to design a porch that not only looks outstanding but adds curb appeal and value to our home we never could have imagined. He is efficient, neat, completely open to last minute "hey we forgot but could you...", incredibly excellent at everything he does (he's also done for us internal painting, fixed floor planks etc) and most important is that he is just the nicest person with whom to work on home projects. Highly recommend."
Remodeling
Remodeling
Remodeling
Remodeling
2 of 2
fire pit

+48

Response time11 hrs
7 neighbors recently requested a quote
Recommended by100%of homeowners
...
Showing 1-10 of 1752
FAQs for basement remodeling projects in Brentwood, 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 Brentwood, NY homeowners’ guide to basement remodelings

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