A new acrylic or fiberglass insert
Fast, cheaper, and one molded piece with fewer joints. It will look like an insert, and sizes are fixed, so an odd opening may not have one that fits.
Dated fiberglass and 4x4 wall tile replaced with waterproofed tile.
Tell us about the project and we will get back to you.
The old surround comes out, the wall behind it gets repaired and waterproofed, and the new tile runs to the ceiling instead of stopping at the old line.

Replacing the tub itself, or moving any plumbing behind it, is licensed plumbing work and is coordinated with a licensed plumber.
Most of the cost is decided before any tile is opened. These are the parts that move it.
Both are legitimate. They solve different problems and it is worth knowing which one you are buying.
Fast, cheaper, and one molded piece with fewer joints. It will look like an insert, and sizes are fixed, so an odd opening may not have one that fits.
Slower and more expensive, fits any opening, and can run full height. The waterproofing behind it is what it lives or dies on.
It moves with the size of the wall, the tile, and what is found behind the old surround once it is out. We quote after seeing it rather than publishing a number that would not survive the tear-out.
Leaving a sound tub in place and retiling the walls is usually the smaller job, because it keeps the plumbing untouched. If the tub itself is cracked or stained through the finish, replacing it while the wall is already open is the sensible order.
Be wary of anyone who says yes. What is behind a failing surround is usually wet, and tiling over it traps the problem.
Running it full height is the change that most often makes a small bathroom read as finished, and it removes the dust ledge a half-height surround leaves behind.
We also work in nearby cities.
Tell us about the room and the tile you have in mind.