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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon41
    Verified basement remodels reviews

Top-Rated Basement remodelers in Cornelius - Updated Nov 2026

Avatar for Cransten Remodeling
Cransten Remodeling
4.5(
207
)
Basement - Remodel

Serving Cornelius, NC and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Joseph remodeled our bathroom and did an amazing job. Extremely trustworthy and detail oriented. Great with communication as well, which I appreciated. I strongly recommend."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+18

Response time1 day
Response rate100%
4 neighbors recently requested a quote
Avatar for Statesville Masonry
Statesville Masonry
4.2(
33
)
Basement - Remodel

Serving Cornelius, NC and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Warranties offered

"Perfect! Joe and his crew were excellent to work with. Our space presented some unique challenges, but they handled everything very well. I’d absolutely hire them for another remodel project."
3Season room
3Season room
Decks & Porches Project
Concrete - Stamped & Decorative Project
Carpentry - Unfinished Project

+48

Response time1 day
Response rate100%
6 neighbors recently requested a quote
Avatar for Harken Design & Renovations LLC
Harken Design & Renovations LLC
5.0(
6
)
Basement - Remodel

Serving Cornelius, NC and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"We have updated my kitchen and laundry room and closes in a loft to make a bedroom. I will be working with Randy to do 2 bath remodels and a deck in the coming months. Randy kept our projects on schedule and on budget. I wouldn’t contact or recommend another contractor!"
Response time10 mins
Response rate100%
14 neighbors recently requested a quote
Avatar for 320 Property Builders of Carolina
320 Property Builders of Carolina
4.0(
14
)
Basement - Remodel

Serving Cornelius, NC and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Jad at 3:20 Builders remodeled our entire downstairs last year- including a full kitchen remodel and knocking out walls. We were thrilled with the project and how it turned out. Jad and his crew are top notch! They are professional, respectable and hard workers. Jad is quick to respond and always willing to help. He is a man of his word. I will hire them again for our next project."
Island View
Range View
Another beautiful island!
Response time2 days
Response rate96%
11 neighbors recently requested a quote
Avatar for Sundown General Contracting
Sundown General Contracting
5.0(
3
)
Basement - Remodel

Serving Cornelius, NC and surrounding areas

Approved

In business since 2013

Free estimates

Customers say: Quick response

"We were very happy with the completion of our bathroom. Robâ s complete remodeling included shiplap and trim on the walls. Rob is a true professional. He was quick to respond to any questions and arrived on time each day. We highly recommend SUNDOWN General Contracting."
Bath conversion
Half bath walls and fixtures.
Master bath
Master bath
Projects

+5

Response time1 day
Response rate88%
Recommended by100%of homeowners
Avatar for Piedmont Precision Builders LLC
Piedmont Precision Builders LLC
5.0(
5
)
Basement - Remodel

Serving Cornelius, NC and surrounding areas

Approved

In business since 2025

Free estimates

Small jobs welcome

"Very professional company. I was given multiple options for rearranging a bathroom before deciding on a plan. I ended up installing a new shower unit, switching the positions of the sink and toilet, and new floor tile. The work was done efficiently and worked with our work schedules. They made sure that I was satisfied before closing everything out. I was very pleased and impressed with the entire job. Thank you!"
Custom Pavilion
Custom Pavilion
Deck Restoration
Deck Restoration
Crawlspace Door

+4

1 neighbors recently requested a quote
Avatar for Rangel Builders LLC
Rangel Builders LLC
5.0(
3
)
Basement - Remodel

Serving Cornelius, NC and surrounding areas

Approved

Free estimates

Small jobs welcome

"I have used this company for several projects from having my downstairs floor redone my steps redone and my bathroom remodeled and he has done an amazing job at a very fair price every-time. He is very particular about the details and makes sure it is done right."
New Construction
Siding & Trim Work
Exterior Job: Siding
Pool Cabana
New Build: Modern

+30

2 neighbors recently requested a quote
Everett Custom Homes of Catawba Valley, LLC
5.0(
2
)
Basement - Remodel

Serving Cornelius, NC and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

"Joe Everette is the absolute best in the business. He is a master at keeping on time and on budget, while providing top quality work and materials. He does not cut corners, he is particular with every detail. We honestly have no complaints at all. We are so happy with our new home which is in the last week or so of construction. We give him 100% + grade AA for an awesome job. No matter how many times we bug him he never acts irritated or like he does not have time for us. If you want top quality, he's your guy!"
Response time1 day
26 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Washington Home Contractor, LLC
Washington Home Contractor, LLC
New to Angi
Basement - Remodel

Serving Cornelius, NC and surrounding areas

Approved

Washington Home Contractor is your premier choice for high-quality home improvements and renovation. We specialize in transforming living spaces with precision, professional integrity,and commitment to lasting results. Licensed,insured,and focused on excellence-let us bring your vision to life. Contact us today for a professional consultation.

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Basement Remodel FAQs, answered by experts

The average cost of remodeling a basement is $30 to $75 per square foot. If your space is unfinished and looks like it may need more help, use the higher number when calculating your estimated basement remodeling costs. A good rule of thumb is to add an additional 20% to the top of your estimate to cover any “what if” situations.

It is generally more affordable to finish a basement than an attic, though it ultimately depends on how you plan to use the space. The average cost to finish a basement ranges from $7 to $23 per square foot, while attic renovation costs $30 to $60 per square foot. However, a simple attic conversion to a storage space will cost significantly less.

Any bowing in a basement wall indicates a problem that needs to be addressed by a professional. If your basement wall bows more than 1 inch, it's time for an inspection. Generally, a wall can bow up to 30% of its thickness (around 2.5 inches for an 8-inch-thick wall) before it becomes an urgent situation. Bowing of 2 to 4 inches is more straightforward to fix than bowing of more than 4 inches, which will require significant repairs. If the bowing is more than 6 inches, the wall will likely need to be replaced. The sooner you address the problem, the easier and less expensive the repair will be.

Create a checklist, reimagine the space use, set a realistic budget, choose materials and aesthetic details, and get professional support for guidelines and troubleshooting.

A finished basement must have a heat and electrical supply with an entrance that meets building code requirements, such as a stairwell to the home's main living space. It often must include finished walls, ceilings, and floors. If the finished basement includes a bedroom, it should have a heat source, an egress window, and a closet.

Remodeling, as opposed to finishing, means altering an already finished basement by adding a bathroom, bedroom, or living area.

The Cornelius, NC homeowners’ guide to basement remodels

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