Pipes will have to be brought down, and a sewage pump and backwater valve might have to be installed to ensure proper drainage of effluent and bath/shower water if gravity doesn’t work in your favor. Take care to ensure moisture prevention with a dehumidifier and vented fan system. Many building codes have minimum dimensions regarding how close each fixture can be to the next.
Remodeling a finished basement is costlier. The demo can cost from $1,500 to around $3,000 to prep the site. System upgrades include expanding the HVAC and electrical, but even if you already have a bathroom in place, remodeling can add $1,000 to $4,000. Finally, the finishing work can be kept low if you stay with the basics, but upgrades to hardwood floors and other luxuries will add $7,000 to $10,000 to the job. On average, expect to pay $13,200 to $30,500 for this job.
Wall finishing systems are rapidly gaining in popularity. These systems feature fiberglass panels and pieces of trim that fit into PVC framing. Panels covered in fabric offer an attractive finished appearance to the basement without the work of drywall taping and painting. Advantages include durability, moisture- and fire-resistance and the ability to remove panels for access to water pipes and electrical wiring.
Get estimates from several companies; request and check references. Understand exactly what is (and isn't) included in each estimate, and whether the contractor will do the paperwork for required building permits. Ask about the contractor's length and type of experience, especially if there's anything unusual about your project. Be sure a company is properly bonded and insured and licensed in your state . See if there are any complaints with the Better Business Bureau .
Before walls and flooring can be added, the basement must first be professionally framed. Framing an unfinished basement can be very expensive; not only will it require a large amount of labor, but material costs are high as well. If you consider all the lumber your contractor will need to lay, plus crossbeams and studs, you will find that lumber is going to be one of the costlier aspects of the project.