Is it possible to change a faucet or showerhead without changing the existing valve?

Answer: In most cases
Explanation: yes , but there are some extreme situations thar may require changing the fixture as well.

Answer: Yes
Explanation: Yes, shower and faucet heads can typically be changed without replacing the valve.

Answer: Yes
Explanation: As long as it lines are long enough

Answer: Yes
Explanation: There are different trim kits that you/or your plumber can purchase to change the look/newness of your existing valve.

Answer: In some cases
Explanation: Not all valves are built into the faucet.

Answer: Yes
Explanation: Yes you can change a shower head without changing the valve , you can rebuild a faucet valve body or replace the faucet

Answer: In some cases
Explanation: Showerheads can be replaced without changing out the valve. However, there is limited availability of tub/shower faucet replacement parts for older valves. If the parts are not available for a repair, then a new valve will be required.

Answer: No
Explanation: SHOWER HEAD YES SOMETIMES TRIM IS ABLE TO BE CHANGED

Answer: Yes
Explanation: Showergeads are cosmetic as well as the trim, the valve can remain the same insure wall.

Answer: In most cases
Explanation: Shower heads are separate from the valve and can be changed that goes for some faucets.

Answer: Yes
Explanation: This is known as trim. Handle(s), Spout

Answer: Yes
Explanation: Yes, ask a plumber

Answer: In some cases
Explanation: which valve is being referred to?

Answer: Yes
Explanation: In most cases yes but if the valve is leaking it should be changed

Answer: In some cases
Explanation: Each manufacturer has its own styles. Shower heads can be replaced without touching the valve. Faucets however typically need to replace the entire assembly.