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Find Basement remodelers in Riverhead

Avatar for JA Carpentry Works LLC
JA Carpentry Works LLC
5.0(
32
)

Serving Riverhead, NY and surrounding areas

Angi Approved

In business since 2019

Free estimates

Small jobs welcome

"Excellent job in a very professional manner. Javier was courteous and very responsive and on top of things I would recommend this company and him."
Kit
Kit
Kit
Kit
Kit

+18

Response time6 hrs
Response rate92%
2 neighbors recently requested a quote
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Avatar for Pristine East End Contracting
Pristine East End Contracting
5.0(
73
)

Serving Riverhead, NY and surrounding areas

Angi 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
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Avatar for All Precision Home Improvement, Inc.
All Precision Home Improvement, Inc.
4.9(
51
)

Serving Riverhead, 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
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Avatar for JBL HOME IMPROVEMENTS INC
JBL HOME IMPROVEMENTS INC
4.9(
227
)

Serving Riverhead, 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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+23

Response time1 day
Response rate89%
20 neighbors recently requested a quote
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Avatar for Alta Renovations
Alta Renovations
5.0(
12
)

Serving Riverhead, NY and surrounding areas

Angi Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"Excellent workmanship. Prompt service and fair pricing. I would hire them again - wouldn’t even look elsewhere. "
Call or text now at 631-703-9900 !!
Response time3 hrs
Response rate91%
6 neighbors recently requested a quote
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Avatar for Exterior Team Home Services, Inc.
Exterior Team Home Services, Inc.
5.0(
22
)

Serving Riverhead, 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
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Avatar for A.S.M. Home Improvements
A.S.M. Home Improvements
5.0(
10
)

Serving Riverhead, NY and surrounding areas

Angi 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
7 neighbors recently requested a quote
Recommended by70%of homeowners
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Avatar for Refined Renovators & Design
Refined Renovators & Design
5.0(
8
)

Serving Riverhead, NY and surrounding areas

Angi Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"The work came out great on my bathroom remodel. The crew worked very neatly cleaned up every day. Very nice people. I would use them again."
comfortable spaces
sunroom
Beautiful Bathroom
Primary Bedroom
Tile shower

+5

Response time5 hrs
Response rate93%
9 neighbors recently requested a quote
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Showing 1-10 of 1665
FAQs for basement remodeling projects in Riverhead, 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 Riverhead, NY homeowners’ guide to basement remodelings

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

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