Accounting for variables such as square footage, materials, electrical and plumbing, the average basement remodel ranges from $11,034 and $29,226. Some cost as little as $5,000, with top of the line remodels costing over $40,000. The average cost to homeowners is $20,126. Expect to spend between $10 and $35 per square foot depending on the changes made.
If you choose a basic do-it-yourself makeover, including adding moisture control, framing in walls and adding decor and furnishings, your cost will run between $10,000 and $27,000. Waterproofing sealants and additional insulation are just a few of the considerations that will be factored into the final finished basement cost. The price will, of course, also be affected by how much renovating is being done.
Material Costs - In addition to the cost of framing and installing drywall to a basement bathroom, material costs can include: ceiling, flooring, paint, trim, toilet, sink, vanity, all fixtures, tub/shower surround, lighting, and all finishes like towel racks. Plumbing and electrical supplies also factor in to the final budget. Many material costs depend on type of product selected, the brand, and how high-end it is. Heated ceramic floor tiles cost more than basic vinyl tiles.
Finishing a basement can cost between $25–$50 per square foot on average, depending on how the basement is finished, whether any challenges come up or whether there are special circumstances with the project. For this reason, a 1,000-square-foot basement can cost up to $50,000 or more to finish. Virgil Miranda of Virgil Miranda’s Construction, a general contracting company based in New Bedford, Massachusetts, says it can be tricky to estimate remodeling jobs based on square footage alone, due to the variance in each job. Larger basements may have a lower cost per square foot than tiny remodel jobs.

Cork is an eco-friendly flooring material that can be installed over an existing floor or concrete. Cork is derived from the bark of the cork tree, meaning trees are not cut down during harvesting. Cork flooring is durable and has good insulating qualities, but if you choose cork flooring for your basement, make sure you choose a type that is recommended for a basement environment as not all cork flooring is appropriate for basements.

Your basement will likely need to be fitted with additional wires to support more lights and electronics. You will need to hire a licensed electrician if you plan to install additional overhead light fixtures, outlets and other components that require additional wiring. The cost of electrical installations depends on the exact project, but licensed electricians tend to charge between $50 and $100 per hour.

Since this basement is not entirely underground - it includes a walk-out entrance on one side -- new egress windows bring natural light into the basement. A simple Roman shade in fun fabric softens the space and brings all the colors of the room together. Egress windows provide an emergency exit; most building codes require one in every bedroom and in habitable basements. Adding one will likely increase the value of a home, as it provides safety, natural light, and increased airflow.


Old homes may suffer from sagging foundation beams as a result of shifting ground or decay and deterioration of the original building materials. Foundation beams can be raised and shored up successfully, but the right tools, like a pneumatic jack, are essential. Depending on how much the foundation beam must be raised, this job may require several days of incremental steps to complete - which means increased labor costs. Hiring professionals is the best option for this job. Expect costs to run about $10,000 for repairs like a shifted foundation.
"We love that the basement now has a cozy feel yet is very on-trend and modern. It has doubled our square footage with very usable space and given us an additional bedroom and full bathroom. We used a beautiful door from the 1800s to line the wall behind the urinal in the bathroom, and we burned the cabinets in the dry bar and the bathroom countertop with a blowtorch to achieve a unique look. We lightly etched the concrete floors and then used a urethane, making a mirror-like finish that reflects light."
Putting down a floor in your basement offers a host of different options that will depend on your wants and needs more than anything else. Carpeting in the basement can easily be installed by any professional. Any type of carpeting can be installed in the basement and is often the most economical option. Another popular solution to flooring in the basement is the use of tile. Although tile is a more expensive option considering both material and labor costs, tile can be very visually appealing in your newly remodeled basement.
Basement waterproofing costs about $1,480 for simple crack filling with an average of $2,000 to $6,000 for drainage improvements. Costs range from a minimum of $250 up to $20,000. Most homeowners waterproof after they discover water in the basement from poor drainage around the foundation and walls. Waterproofing will be a lower cost if it's included in a larger basement finishing project.
Basement water leakage can cause serious problems for a homeowner. Standing water can lead to mold growth, which poses health issues. It's also a haven for bugs and other pests. Over time, concrete blocks and foundations can sustain hairline cracks. While they may appear small on the surface, they can be the start of an enormous problem, so early repair is key. The only way to rectify a basement water problem is to remove the water and seal the leaks. This may involve removing existing paint or wall coverings as well as replacing soggy beams.
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