Top-rated basement remodelers.

Get matched with top basement remodelers in Nassau, DE

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 Nassau

Avatar for Last Looks LLC
Last Looks LLC
5.0(
25
)

Serving Nassau, DE and surrounding areas

Approved

Super Service Award Winner

Free estimates

Warranties offered

Credit card accepted

"Work was excellent. Workers were exceptionally good. They were thorough, neat and a pleasure to have in my home. I highly recommend this company."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+96

Response time1 day
5 neighbors recently requested a quote
Recommended by84%of homeowners
Coastal Home Renovations
4.9(
40
)

Serving Nassau, DE and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

"Joe and his team from coastal renovations were one of the best experiences I have had on any renovation we have done on many homes we have owned. From start to finish they explained every step taken and when the project was completed we couldn't be happier. If your looking for a contractor I would highly recommend them. "
Response time3 days
4 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Elite Construction
Elite Construction
5.0(
8
)

Serving Nassau, DE and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Credit card accepted

"Olgun completed several projects for me at two locations. He built a closet, installed guardrails on the basement staircase, painted rooms, installed outside cameras, installed shower doors, replaced siding, and more. He is polite, professional, and timely. He does quality work at a good price. I recommend Olgun for large and small jobs."
Response time12 hrs
Response rate100%
Avatar for M Phippin Contracting Inc.
M Phippin Contracting Inc.
5.0(
22
)

Serving Nassau, DE and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"Everything went well. Mike did a fantastic job communicating every step of the way. Easy to work with and showed up on time as promised."
Decks & Porches Project
Bethany Beach Kitchen
Bethany Beach Privacy Carport
Selbyville, Del. Kitchen Remodel
Entry Door

+190

Response time2 days
8 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Liberty Construction, LLC
Liberty Construction, LLC
4.8(
88
)

Serving Nassau, DE and surrounding areas

Approved

In business since 1975

Free estimates

Small jobs welcome

"Liberty Construction has worked with us on three major projects. The quality of their work is excellent, Mark and Craig have great communication skills, and prices are reasonable. The same highly skilled crew has worked at our house for all projects. They are polite and clean up daily. While Liberty Construction has completed three bathroom remodels for us, the pictures below are before/after photos of our latest project, a kitchen remodel. This project involved a complete demolition and moving walls and doorways. The results are beautiful! Thank you, Liberty Construction - we love our new kitchen!"
Response time11 hrs
1 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Preston Building
Preston Building
5.0(
1
)

Serving Nassau, DE and surrounding areas

Approved

In business since 2005

Free estimates

Customers say: Quick response

"I can't say enough good things about my experience with Randy Preston and his crew!! Randy helped me renovate a garage that was in SEVERE disrepair into a beautiful and charming studio cottage. The craftsmanship was excellent. I regularly get compliments and feedback that the cottage has the feel of a home that's been there forever (think circa 1940's cottage). The crew was always on time, kept the site neat and clean and were super easy & pleasant to work with. Randy's personality is "steady and calm" - nothing ever felt like a problem - if it was within his power, he handled it and if it wasn't, he helped me figure out next steps. Renovations are rarely stress-free but Randy's nature helped to make it as stress-free as possible. I think the thing I was most impressed with was his transparency and honesty. He was the only contractor that provided me with a fully itemized estimate. I knew exactly how much was budgeted for EVERYTHING and at the end of the construction, he actually credited me back money for things I would have NEVER known cost less then estimated. Every step of the process (that he had control of) was great. I'd hire him again in a heartbeat and hope I do get to use him again for a future project I have in mind. If I haven't gotten the point across yet, I highly highly recommend!!"
Response time2 days
Recommended by100%of homeowners
Coastal Home Improvements
New to Angi

Serving Nassau, DE and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

Response time3 days
Avatar for Adam Basement Inc
Adam Basement Inc
4.9(
63
)

Serving Nassau, DE and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"We had water in our crawlspace after heavy rain. We hired Adam Basement to remedy the problem after consulting with three companies. We hired Adam Basement because of their excellent reputation in our neighborhood and because Bob of Adam Basement is a superb communicator, who explained the problem and proposed solution to us in a logical and easy-to-understand manner. Adam Basement installed a pressure relief sub-floor drainage system with a drainpipe and two sump pumps. They treated the crawlspace for mold and mildew and wrapped the floor and walls with a vapor barrier. Adam Basement’s technicians were hard-working, technically proficient, and professional, and their office staff were responsive and helpful. We’ve had the system for six months and are very pleased. The crawlspace has remained bone dry after heavy rain, and it looks and smells great. Adam Basement stands behind its work, as it provides a 10-year sump pump warranty and a lifetime, transferable waterproofing system warranty. We wholeheartedly recommend Adam Basement for basement repairs or waterproofing."
Recommended by96%of homeowners
...
Showing 1-10 of 82
FAQs for basement remodeling projects in Nassau, DE

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 Nassau, DE homeowners’ guide to basement remodelings

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