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Find Basement remodelers in Mastic

Avatar for Unique Interior Finishes
Unique Interior Finishes
4.8(
31
)

Serving Mastic, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Customers say: True professional

"Bob did an absolutely fantastic job. The man was a professional from beginning to end of the project . He had a vision and he made it happen . My basement has been transformed top to bottom and I could not be happier with the work . Bob gave a fair price and finished the project incredibly fast . I would highly recommend him to anyone looking to do a project in their home . My basement could not look any better "
Monica`s basement
monica`s basement
monica`s basement
Monica`s basement
Monica`s basement

+26

Response time12 hrs
Response rate94%
18 neighbors recently requested a quote
Avatar for Jorge General Construction Corp
Jorge General Construction Corp
5.0(
11
)

Serving Mastic, NY and surrounding areas

Approved

In business since 2023

Free estimates

Warranties offered

"Jorge has basically remodeled our entire house. Jorge and his crew were very neat, professional from start to finish. Jorge was instrumental in helping to bring our vision to fruition. Once a project was started Jorge and his crew were here until the job was completed to our satisfaction. Pricing was fair and reasonable, I would highly recommend Jorge construction Corp. to anyone looking to remodel."
Remodeling kitchen
Bath
Miscellaneous work
Kitchen
Remodeling kitchen

+61

Response time1 day
Response rate92%
8 neighbors recently requested a quote
Avatar for A.S.M. Home Improvements
A.S.M. Home Improvements
5.0(
10
)

Serving Mastic, NY and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"Anthony did an excellent job completing my garage upgrade within budget. He was highly professional and knowledgeable, and the quality of his work exceeded my expectations. I would definitely recommend him to anyone looking for masonry or home improvement projects."
Remodeling
Remodeling
Remodeling
Remodeling
2 of 2
fire pit

+48

Response time11 hrs
5 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for Pristine East End Contracting
Pristine East End Contracting
5.0(
73
)

Serving Mastic, NY and surrounding areas

Approved

In business since 2006

Free estimates

Credit card accepted

"Nick did an awesome job with our medicine cabinets. His work went above and beyond. When he noticed too-large gaps between the doors and frames, he drove all the way to the building supply store to get better-sized parts. Would definitely recommend him."
Project Photos
Recommended by95%of homeowners
Avatar for Alta Renovations Corp
Alta Renovations Corp
5.0(
25
)

Serving Mastic, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Warranties offered

"Jose and his crew did an outstanding job on our extensive interior and exterior renovation, which included a new addition. The project covered everything from a new structural roof with shingles and skylights to new construction windows and doors, siding, a Trex deck, and fully renovated kitchen, bathroom, and laundry room. They also refinished a bedroom and installed beautiful hardwood floors. As with any large project, a few unexpected challenges came up, but Jose handled them with professionalism and kept everything moving forward smoothly. His craftsmanship is excellent, and he’s not only easy to work with but also patient and highly skilled at problem-solving. I wouldn’t hesitate to hire Jose again for future projects and highly recommend him to anyone looking for quality work and a reliable contractor."
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 Mastic, 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 Arthur DeRosa Building and Remodeling
Arthur DeRosa Building and Remodeling
5.0(
12
)

Serving Mastic, NY and surrounding areas

Approved

In business since 1986

Free estimates

Customers say: Quick response

"Artie & Mike are simply the best. I used them to: 1) Build a LARGE extension to my house and redo my entire kitchen and dining room. The job was completed on time and on budget. Throughout the process Artie was transparent & professional. EVERY person who has stepped into my house has complimented at the detailed perfection. 3) Artie built us a custom walk in pantry 2) Built 2 large decks in the backyard as well as an outdoor shower. This project was completed on time, on budget while exceeding all expectations. If you are looking for a contractor and crew that is responsible, responsive, polite, creative and delivers the HIGHEST LEVEL of quality - Artie is the one."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+20

Response time2 days
5 neighbors recently requested a quote
Recommended by100%of homeowners
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Showing 1-10 of 1658
FAQs for basement remodeling projects in Mastic, 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 Mastic, NY homeowners’ guide to basement remodelings

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