Before starting, safety first! Locate the shut-off valves for your shower (usually near the shower or in the basement). Turn the valves clockwise to completely shut off the water supply. Double-check that the water is off by briefly turning on the shower faucet.

Remove your existing shower handle. For a single-handle Delta faucet, locate the setscrew (often under a cap). Use an Allen wrench to remove the setscrew, then carefully pull the handle off. If the setscrew is stubborn, consult alternative methods in the linked videos.

Carefully remove the escutcheon plate and any remaining trim components. You may need to unscrew them or gently pry them off using a flat-head screwdriver. Be cautious to avoid damaging the wall or valve. If the escutcheon is corroded, a wrench may be necessary.

Install the new trim components, carefully following the manufacturer's instructions. This typically involves screwing the new escutcheon plate and other trim pieces into place. Ensure everything is aligned correctly and securely tightened. Don't overtighten!

Slowly restore the water supply. Carefully inspect all connections for leaks. If any leaks are found, tighten the connections or disassemble and reassemble the trim components. If leaks persist, contact a qualified plumber. Once satisfied, enjoy your updated shower!