Waterproofing
Every surface that gets wet needs a continuous waterproof layer behind the finish, tied into the drain. This is the part you cannot see later, so ask how it will be done.
A new shower area
Shower installation means building a complete shower area, from the floor and walls to the valve, glass and ventilation. It is a full project rather than a new shower head or a single fixture.
For homeowners planning a tub, shower or bathing-area project at a home they own in an eligible ZIP code. Not for mobile homes, billing or customer-service questions, or small accessory-only jobs.

In short
Shower installation creates a complete new shower area: base, waterproofed walls, valve, drain, enclosure and ventilation. It suits homeowners adding a shower to a bathroom, rebuilding one in a new location or creating a second bathing space. Fixture-only work, such as swapping a shower head or faucet, is a smaller job outside this service.
Options and layouts
Three walls and a hinged or sliding door make an efficient enclosure in a modest footprint. It works well where wall space is limited.
Two walls and angled or square glass fit a corner and leave floor space open. Neo-angle shapes help in tight rooms.
A fixed glass panel without a door suits larger footprints. It needs enough depth so spray stays inside the shower.
A floor that slopes to the drain with no step gives a seamless look. It needs careful floor work, and a slab may limit it.
A one-piece or multi-panel kit is simpler to install, while a tiled shower allows custom sizes, niches and benches.

Project fit
Plan ahead
Every surface that gets wet needs a continuous waterproof layer behind the finish, tied into the drain. This is the part you cannot see later, so ask how it will be done.
A new shower adds steam to the room. An exhaust fan vented outdoors, sized for the space, helps the bathroom dry between uses.
The shower floor must slope to a drain that can carry the water away. A linear drain or a center drain changes how the floor is built.
New supply lines, a valve and a vented drain all need routing. Your water heater capacity matters if more than one shower runs at once.
Walls may need building or reinforcing for glass and benches. Permits and condo association approval may apply, and the provider can explain both.
Consultation
This service is a full new shower area. Replacing a shower head, faucet trim or a single valve cartridge is fixture work that a plumber may handle better, and small jobs like that alone are not covered by this site's consultations. If you already have a shower and want it renewed in the same spot, shower replacement is the closer match.
A curbless or low-step entry may make access feel easier, and any accessibility compliance question needs a project-specific look. If a low entry is your main goal, walk-in shower installation covers that design in more depth. Mobile homes are not covered by this site's consultations.
Process
You describe the location, size and style you want, and a provider asks about the home and access.
The provider measures, checks floor construction and traces plumbing and ventilation routes.
Enclosure, base, finishes, valve and fan are chosen, along with any approvals required.
Framing, plumbing rough-in and the waterproof layer are completed and checked before finishes go on.
Walls, floor, glass and fixtures are installed, and the drain, valve and fan are tested.
Miami considerations
South Florida's humid subtropical climate means a new shower has to dry out in air that is already damp, so ventilation deserves real attention. Many homes sit on concrete slabs, which can affect drain placement and curbless designs. In condominiums, association approval and the location of shared lines may limit where a new shower can go.
Installation builds a shower area from scratch, often in a new location or a reworked layout. Replacement renews an existing shower in the same footprint, swapping its base, walls, valve and glass. If you are keeping your shower where it is, replacement is usually the better description of your project.
Alcove and corner showers usually suit smaller rooms because they use walls efficiently and keep spray contained. Sliding doors avoid a swing into the room. A provider can measure your space and show how much clear floor each style leaves for the rest of the bathroom.
Tile and grout are not waterproof on their own. Water that gets past them reaches the wall and floor behind, where damage can build unseen. A continuous waterproof layer tied into the drain is what keeps that from happening, so ask the provider which method they use.
In most cases it is strongly worth having one. A fan vented outdoors helps the room dry after each shower, which matters in a humid climate. A provider can check whether an existing fan is adequate or whether a new one should be part of the project.
Sometimes, but it is more involved. The floor has to slope to the drain with no step, which may mean recessing part of the slab. In condos, the unit below and shared lines add limits. A provider can explain whether it is realistic for your floor.
That is fixture-only work, and it is not what this site's consultations cover. A plumber or handyman is usually a better fit for a single shower head, faucet or trim swap. Shower installation here means building a complete new shower area.

Next step
Share your ZIP code, the current tub or shower and what you want to change. If the project fits, you can be connected with an independent provider who serves your area.