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Find Basement remodelers in Holtsville

Avatar for Northgate Home Improvement Corp.
Northgate Home Improvement Corp.
5.0(
82
)

Serving Holtsville, NY and surrounding areas

Angi Approved

In business since 1985

Free estimates

Warranties offered

"I have had Jeff and his guys renovate my ranch house in Melville. He has done 2 bathrooms, my basement and my kitchen. He has always been reliable and done great work. The house looks like new. He quickly corrects any problems and is always in touch. He and his guys are friendly and neat. His estimates are reasonable. I strongly recommend Northgate Home Improvement."
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+56

Response time7 hrs
14 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Pristine East End Contracting
Pristine East End Contracting
5.0(
72
)

Serving Holtsville, NY and surrounding areas

Angi Approved

In business since 2006

Free estimates

Credit card accepted

"My experience with Nick was A++ from start to finish. When we first met, he took the time to understand my project and needs and to review options. He clearly cared a lot about his work and creating a special space for my family to enjoy in our home. His prices were reasonable (I got several estimates) and he stuck perfectly to the budget we agreed to. The finished product is even more beautiful than I had envisioned, it’s perfectly finished and created a great usable space in our home. 100% would recommend Nick for any and all construction work! "
Project Photos
Recommended by97%of homeowners
Avatar for JBL HOME IMPROVEMENTS INC
JBL HOME IMPROVEMENTS INC
4.9(
227
)

Serving Holtsville, NY and surrounding areas

Angi Approved

Super Service Award Winner

In business since 2006

Free estimates

Warranties offered

"Dave strive for excellence in all his work projects. He and his crew are professional, always show up to the job on-time and his work meets and surpassed our expectations. His price is not the cheapest but if you want a good quality job, look no further."
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+23

Response time1 day
Response rate89%
16 neighbors recently requested a quote
Avatar for HM Construction Group, Inc. (Long Island Handyman Group)
HM Construction Group, Inc. (Long Island Handyman Group)
5.0(
21
)

Serving Holtsville, NY and surrounding areas

Angi Approved

In business since 2017

Free estimates

Emergency services offered

"Eddie was great to work with! We had a limited time frame to adhere to town inspections and Eddie and his team knew exactly what we needed and quickly got the job done. The results were great and even the inspector acknowledged the impressive repair. They were able to put a knocked out garage wall back on the foundation and repair the interior dry wall. I would recommend this company for any professional contract work due to their reasonable price, ease to work with and quality of work."
Recommended by90%of homeowners
Avatar for Unique Interior Finishes
Unique Interior Finishes
4.8(
31
)

Serving Holtsville, NY and surrounding areas

Angi 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%
16 neighbors recently requested a quote
Avatar for Inson Dubois Wood LLC
Inson Dubois Wood LLC
5.0(
12
)

Serving Holtsville, NY and surrounding areas

Angi Approved

In business since 2005

Customers say: Quick response

"Inson is a creative genius with a superb eye. He did everything with meticulous detail and completely transformed our apartment into an amazing, gorgeous home. We enjoy entertaining, and our friends love coming over, always remarking how beautiful and inviting our home is- and that was exactly what we wanted, except Inson brilliantly upgraded our concept, within budget and on time (even with our aggressive timeline because we needed to be out of our old place and into our new within months!). Inson’s team was also great to work with - always polite and professional. We highly recommend Inson and plan on working with him again on our Hamptons home!"
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+11

8 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for VP Quality Contracting
VP Quality Contracting
4.9(
58
)

Serving Holtsville, 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 HD Renovations
HD Renovations
4.9(
96
)

Serving Holtsville, NY and surrounding areas

Angi Approved

In business since 2010

Free estimates

Emergency services offered

"I was looking for a contractor to renovate a 2BR rental property. After meeting with several contractors I had decided to go with HD Renovations. During the walkthrough BEFORE the work started, Dominick pointed out a few things and we came up with a plan for the project. Dominick and his crew showed up on time every day and worked non-stop until the project was completed. The work was excellent! When electrical and plumbing issues came up, Dom found a solution. He was a pleasure to work with. Always responsive to every question or idea. He had great suggestions along the way and really took pride in his work. The project lasted a month when others had taken 6-8weeks and stayed very close to budget even though I had made a few additions to the original proposal. As a landlord I have used many contractors over the years. HD Renovations were the best! I look forward to working with them in the future!"
Kitchen and Bath Remodeling Project
Bathroom renovation
Accessible shower two days
Complete demo of existing shower or bathtub area completed in two days.
Bathroom and kitchen remodel

+94

Response time1 day
3 neighbors recently requested a quote
Recommended by95%of homeowners
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FAQs for basement remodeling projects in Holtsville, 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 Holtsville, NY homeowners’ guide to basement remodelings

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