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Find Basement remodelers in Wilmington

Avatar for Quality 1st Basement Systems, Inc
Quality 1st Basement Systems, Inc
4.6(
230
)

Serving Wilmington, DE and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"my whole home feels fantastic. very courteous and knowledgeable individuals. I would hire them again for all my basement waterproofing and basement remodeling needs in the future. Its hard to find a family run business with amazing values and professionalism. these guys have it all."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+129

Response time10 hrs
Response rate99%
13 neighbors recently requested a quote
Avatar for H&Y Contracting LLC
H&Y Contracting LLC
4.9(
17
)

Serving Wilmington, DE and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"I hired H&Y Contracting LLC to remodel my kitchen and the results were tremendous, there work ethic was professional and efficient. well recommended."
Living Room Remodel
Living Room Remodel
Bathroom
Kitchen remodel
Kitchen

+75

Response time10 hrs
Response rate93%
9 neighbors recently requested a quote
Avatar for R.A BARKER
R.A BARKER
4.8(
19
)

Serving Wilmington, DE and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Mr. Barker came and measured and discussed my interests with me. He got the door, installed it, and took the old one away. I was pleased with the work and the timeliness."
Finished basement
Finished
Basement Remodeling
Bathroom Remodel
New plywood

+113

1 neighbors recently requested a quote
Recommended by64%of homeowners
Avatar for All Angles
All Angles
4.5(
13
)

Serving Wilmington, DE and surrounding areas

Approved

In business since 1997

Free estimates

Warranties offered

"I was delighted with the progress and final product. My entire first floor has been improved by this renovation. My family and friends also love it! Omar works with great speed and integrity. Give All Angels a try!"
Old bathroom
Prep for Tile work
Finished Bathroom
Tub surround Finish
Work in Progress

+26

Response time3 hrs
Response rate100%
Recommended by75%of homeowners
Avatar for Warrior Contracting LLC
Warrior Contracting LLC
5.0(
4
)

Serving Wilmington, DE and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Warrior Contracting is an amazing company to deal with. Thier team helped make my basement remodel come to life. They are extremely professional and will go above and beyond for any project you wish. I recommend this company with high confidence."
Response time1 day
5 neighbors recently requested a quote
Avatar for Garage Lux
Garage Lux
5.0(
11
)

Serving Wilmington, DE and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"We had our kitchen cabinets installed about a year by Garage Lux and the cabinet installation was amazing. Quick response and convenient. I would definitely recommend and use them again."
Cabinet Installation
Garage Renovation
Before & After
Garage Transformed
Kitchen Renovation

+2

Response time1 day
7 neighbors recently requested a quote
Avatar for Big Bad Wolf Construction Company, LLC
Big Bad Wolf Construction Company, LLC
4.0(
34
)

Serving Wilmington, DE and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"I was very hesitant to hire a contractor to finish my basement. Now that it is completed, I am very happy I selected John over the many others interviewed. The basement is beautiful and exactly as we had discussed prior to starting the project. He was very flexible with minor changes and completed quality work. I will contact John again should I have any additional home improvement needs. Nice work John!"
Whole House Renovation an
Whole House Renovation an
Whole House Renovation an
Whole House Renovation an
Whole House Renovation an

+171

Response time2 days
Recommended by92%of homeowners
Avatar for Handyman Guy
Handyman Guy
5.0(
2
)

Serving Wilmington, DE and surrounding areas

Approved

In business since 1983

Free estimates

Emergency services offered

"Guy and his team were amazing and professional. Guy was able to recommend solutions to resolve ongoing water problems in the basement, completed the install and finished the basement. It has added significant square footage and value to our home. Additionally, he completely remodeled the kitchen and was able to suggest small but important finishing details the really brought the project together. The kitchen is transformed and is a gathering spot for the whole family. Guy has also helped us out with smaller odds and ends including installing new outlets and breakers, repairing drywall, and smaller paint jobs. I would recommend Guy and his team over and over again!"
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Response time11 hrs
3 neighbors recently requested a quote
Recommended by100%of homeowners
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Showing 1-10 of 289
FAQs for basement remodeling projects in Wilmington, 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 Wilmington, DE homeowners’ guide to basement remodelings

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