How to Finish a Basement Wall to Optimize Your Space

Expand your downtime horizons with this home project

Finished basement with stone fireplace
Photo: pics721 / Adobe Stock
Finished basement with stone fireplace
Photo: pics721 / Adobe Stock
Jacqueline DeMarco
Contributing Writer
Updated June 22, 2023

Difficulty

Challenging

Big project; big rewards.

Time to complete

7 hours

Set aside about a day for an 80-square-foot wall.

Cost

$500–$1,000

Only buy supplies if you’re comfortable with advanced-level DIY.

Need professional help with your project?
Get quotes from top-rated pros.

What you'll need:

TOOLS
  • Tape measure
  • Level
  • Utility knife
  • Chalk line
  • Stud finder
  • Power drill
  • Circular saw
  • Hammer
  • Flathead screwdriver
  • Phillips screwdriver
  • Pry bar
  • Safety goggles
  • Dust mask
  • Work gloves
  • Ladder or step stool
  • Extension cords
  • Paintbrush or paint roller (optional)
  • Caulking gun (optional)
  • Drywall taping knife or putty knife
  • Drywall sander or sandpaper
  • Drywall saw or keyhole saw (optional)
SUPPLIES
  • Drywall panels
  • Drywall screws
  • Joint compound/mud
  • Drywall tape
  • Corner beads (optional)
  • Insulation (optional)
  • Vapor or moisture barrier (optional)
  • Primer (optional)
  • Paint (optional)
  • Caulk
  • Sandpaper
  • Masking tape
  • Plastic sheeting or drop cloths
  • Cleaning supplies
  • Dust barrier or plastic sheeting
  • Nails or screws (optional)

Are you looking to transform your basement into a functional and inviting space? Finishing the basement walls is a crucial step in achieving that goal. Whether you're aiming to create an entertainment area, a home office, or an extra living space, knowing how to finish a basement wall is essential. 

In this article, we'll guide you through the process, providing step-by-step instructions and expert tips to help you achieve professional results. Say goodbye to cold, bare walls and hello to a beautifully finished basement that enhances the overall comfort and aesthetics of your home.

Prepping to Finish a Basement Wall

Not sure how to finish basement walls? Before embarking on the project of finishing your basement wall, it is essential to consider a few key factors to ensure a smooth and successful endeavor. Proper preparation and gathering of necessary tools and supplies will save you time, effort, and potential setbacks. 

Start by measuring the dimensions of the wall to determine the required quantity of materials, such as drywall panels, screws, and joint compound. Next, assess the condition of the wall, checking for any moisture issues, cracks, or uneven surfaces that may need to be addressed before proceeding. 

When it comes time to purchase supplies, opt for high-quality tools and materials to achieve professional results. While pre-packaged kits may seem convenient, buying individual tools and supplies separately allows for customization and often yields better-quality materials. 

  1. Get Familiar With Building Codes and Secure Permits

    Woman in the kitchen using laptop and taking notes
    Photo: Halfpoint Images / Moment / Getty Images

    Understanding building codes and securing permits before undertaking a basement wall finishing project is crucial for several reasons. Building codes ensure that construction meets safety standards, preventing hazards such as fire, structural instability, or inadequate ventilation. Obtaining permits ensures that your project is legal and compliant with local regulations. 

    Failure to adhere to codes and obtain permits can lead to fines, forced removal of work, and difficulty in selling your property. It's essential to prioritize safety, compliance, and legal obligations to ensure a successful and trouble-free basement wall finishing project.

    If your basement is an addition to your home, make sure you secure the right home addition permits before starting this work.

  2. Prepare the Surface

    Worker applying putty mixture to the wall
    Photo: Detry26 / iStock / Getty Images Plus / Getty Images

    To kick off this project the right way, clean the basement wall thoroughly, removing any dirt, dust, or debris. Use a broom or vacuum cleaner to eliminate loose particles, and wipe down the wall with a damp cloth or sponge. Repair any cracks or holes with an appropriate filler, and allow it to dry completely before moving on to the next step. 

    Taking the extra time to prepare ensures a smooth and clean surface for the subsequent stages of finishing the wall.

  3. Install Insulation

    Worker installing new wall insulation
    Photo: Sabrewolf / Adobe Stock

    Insulation helps in regulating temperature and reduces noise transfer between rooms. While you don’t have to install insulation, you may want to consider doing so to improve energy efficiency and create a more comfortable space. To install insulation, you will need to measure the dimensions of the wall and cut insulation panels accordingly. Fit them snugly between the studs, using adhesive or staples to secure them in place. Ensure that the insulation covers the entire wall, leaving no gaps.

  4. Install a Vapor Barrier

    Plastic vapor barrier installed in the basement
    Photo: Douglas Sacha / Moment / Getty Images

    If your basement is prone to moisture issues, installing a vapor barrier is crucial. Measure the wall's dimensions and cut the vapor barrier material accordingly, leaving extra for overlaps. Attach the barrier to the wall using adhesive or staples, ensuring a tight seal. Overlaps and joints should be securely taped. 

    A vapor barrier helps prevent moisture from seeping through the wall and causing damage to the finished surface.

  5. Frame the Wall

    Wooden studs installed on the basement wall
    Photo: ferrantraite / E+ / Getty Images

    Using treated lumber, construct a frame by attaching vertical studs to the basement wall. Measure and cut the studs to the appropriate height, ensuring they are plumb and level. Secure them to the floor and ceiling joists using a power drill and appropriate screws or nails. Leave spaces for windows and doors, framing them accordingly. 

    This framing provides support for the drywall and creates a finished look.

  6. Install Drywall

    Worker using power drill to fasten drywall panels to the wall
    Photo: Sabrewolf / Adobe Stock

    Measure and cut drywall panels to fit the dimensions of the wall. Starting from one corner, attach the drywall to the studs using drywall screws, leaving a small gap between panels for expansion. Use a power drill or drywall screw gun to securely fasten the panels. 

    Repeat this process until the entire wall is covered. Cut openings for windows, doors, and electrical outlets as needed. Be sure to wear safety goggles and a dust mask when cutting and handling drywall.

  7. Apply Joint Tape

    Handyman applying mud over drywall joints
    Photo: GeorgePeters / E+ / Getty Images

    Apply drywall joint tape over the seams between the panels, pressing it into the wet joint compound (also known as mud). Use a taping knife or putty knife to smooth out the tape and remove any excess mud. Allow it to dry completely, and then apply additional coats of mud, feathering the edges outward with each layer. 

    To complete this step, you will sand the dried mud between coats for a smooth finish. Repeat this process until the joints are seamless and the wall surface is even.

  8. Finish and Paint

    Using roller to paint drywall wall
    Photo: primipil / Adobe Stock

    Ready for the finishing touch on your basement remodel? Once the mud has dried and the surface is smooth, you can sand the entire wall lightly to remove any imperfections or rough patches. Clean the dust from the surface, and apply a primer to ensure proper paint adhesion. 

    Now comes the fun part. You can choose your desired paint color and apply it evenly using a paint brush or roller. Allow the paint to dry completely between coats, following the manufacturer's instructions. Apply additional coats if needed, and ensure thorough coverage. Once dry, your basement wall will have a fresh and finished appearance.

DIY vs. Hiring a Pro 

When considering finishing your basement walls, you have the option of tackling the project yourself or hiring a contractor. It's important to weigh the cost implications of each approach. Doing a DIY to finish your basement can save you money on labor costs but requires investing time and effort. 

So how much does it cost to finish basement walls by yourself versus with the help of a professional? Framing your basement walls yourself can cost an average of $1,800, or $7 to $16 per linear foot, excluding drywall and insulation. 

Hiring a professional basement remodeling contractor near you may cost more, but it ensures expertise and efficient completion of the job. For insulation, foam products are recommended, with costs ranging from $2,140 for spray foam insulation to $700 to $840 for rigid foam board (excluding labor) for a 1,000-square-foot basement. 

As mentioned, the cost of drywall installation by a pro is approximately $1,800, while DIY costs can be lower, with drywall panels priced at $12 to $20 each. Depending on your budget, timeline, and skill level, you can choose the best option for your basement wall finishing project.

Before hiring a professional, it’s a good idea to get a home renovation contract in place to make sure both parties are crystal clear on what’s expected of them.

Frequently Asked Questions

To ensure your basement walls are waterproof, it's crucial to address any existing moisture issues before finishing. Inspect for signs of water seepage, such as dampness or discoloration, and repair any leaks or cracks. Install a vapor barrier to prevent moisture from penetrating the walls, and consider waterproofing paints or coatings.

Proper drainage systems, such as interior or exterior waterproofing, can also be beneficial.

Need professional help with your project?
Get quotes from top-rated pros.
Learn more about our contributor
Jacqueline DeMarco
Contributing Writer
Jacqueline DeMarco, a Northern California-based freelance writer specializing in sharing home decor and DIY tips, particularly focused on organizing and decorating small spaces. She has contributed to sites like Apartment Therapy, The Everygirl, and Orchard.
Jacqueline DeMarco, a Northern California-based freelance writer specializing in sharing home decor and DIY tips, particularly focused on organizing and decorating small spaces. She has contributed to sites like Apartment Therapy, The Everygirl, and Orchard.
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