The Average Cost to Remodel a Bathroom. First and foremost, you should understand that any “average” bathroom remodeling costs you read about for a bathroom remodel will only be an estimate. Estimating Bathroom Remodel Costs. Determining your budget could be tricky when planning your renovation.A large factor in determining cost will be the size of your bathroom, ranging from small to medium or master bathroom size. When you are remodeling a small bathroom, you need to make sure that your costs are always in the forefront of your mind. Keep in mind that although the average small bathroom remodel costs around $9,000, that your labor & materials costs will vary depending on location and quality of fixtures you choose. Refinishing The average cost to finish a basement is about $6,500 to $18,500.Basic costs include hanging drywall, painting, installing crown molding and flooring, which total around $7,500.The return on investment for refinishing your basement can be as much as 69 percent. Average bathroom remodels fall between $9,600 to $11,000 in costs. A low-end remodels typically cost around $2,500 while high-end remodels cost around $23,000. While looking at a potential kitchen remodel recently, I told the homeowner the first step to remodeling a kitchen is putting plans together. She understood but wanted to know if the kitchen remodeling cost was in her budget. Unfortunately, kitchen remodel budgets are like the old chicken-or-egg question: Which comes first? .