Refinishing a bathtub is more cost-effective than replacing it. The average cost to refinish a bathtub is $480, compared to $3,400 to replace it. Refinishing can fix minor cracks, scratches, and discoloration. If your bathtub has major cracks or leaks, it's better to replace it.

Bathtub refinishing can refer to the project as a whole (which might include steps like cleaning and sanding), and bathtub reglazing is the actual process of applying the protective coating, but “these terms are basically interchangeable,” Anderson says. You might also hear this work referred to as bathtub resurfacing.

How long does a tub reglazing last? If you have a professional reglaze your tub, you can expect their work to extend the life of your tub by about 10 to 15 years. However, it's estimated that most DIY reglazing jobs will only last three to four years on average.

DIY bathtub refinishing can be a good solution to a worn, unattractive tub for a few years, but it's difficult to achieve perfectly smooth, long-lasting results with all-in-one kits. Hire a professional tub refinisher for a mirror-smooth, durable finish that lasts more than just a few years.