Demo to First Shower: The Step-by-Step of a Tub-to-Shower Conversion in Colorado Springs

The reciprocating saw bites into the old steel tub with a sound like a dentist’s drill scaled up ten times, and in about four minutes a fixture that has sat against that wall for thirty years is in two pieces on a moving blanket. Behind it, for the first time since the house was framed, the studs are bare. That first cut is the moment a lot of homeowners realize a tub-to-shower conversion is a real, sequenced project, not a swap that happens while you run errands.

Here is what actually happens, from that first cut to your first shower, so you know what the crew is doing and why each step matters.

Step 1: The pre-start walkthrough and final measurements

Before anything comes out, the contractor confirms the plan against the real room. They re-measure the tub alcove, check where the drain sits, note the valve location, and confirm the base and wall materials you picked. This is also when they mark the water shutoff and talk through where they will stage tools and debris.

Say a homeowner picked a 60-inch acrylic base to match the old alcove footprint. The walkthrough is where the crew catches that the framed opening is actually 59 and a half inches, which changes nothing major but tells them to plan for a slightly tighter set. Catching that now beats catching it on install day.

Step 2: Protection and demolition

The crew lays floor protection from the door to the bathroom, tapes off the vanity and toilet, and often runs plastic to keep dust out of the rest of the house. Then the tub comes out. On a straightforward job the old tub, its surround, and the backer board behind it are gone in half a day.

Demo is loud and a little alarming, but it is the cleanest look you will ever get at what is behind your walls. That matters for the next step.

Step 3: Inspecting what the tub was hiding

With the walls open, the contractor checks for the things that hide behind every tub: soft or water-stained studs, old galvanized supply lines, a drain that has been slowly leaking, or mold on the framing. This is the single biggest reason a fixed quote can shift, and a good crew shows you what they find before touching it.

A realistic example: a homeowner in an older Colorado Springs neighborhood might learn that the bottom foot of two studs is punky from a decades-old grout crack. That is a modest repair when the wall is open and a nightmare if it gets sealed back up. If your last remodel did not hold, this stage is usually where the reason becomes obvious. We cover that pattern in starting over when the last bathroom remodel didn’t hold.

Step 4: Plumbing and drain conversion

A tub drains at one end; a shower usually drains at or near the center. So most conversions involve moving or extending the drain, and often swapping the tub valve for a shower valve with the trim height you actually want. Some jobs keep the drain roughly where it is and center a linear drain to meet it, which can save labor.

How far the plumbing moves is one of the real cost drivers on this project. If you want the full picture on that, our post on whether you have to move the plumbing walks through the options.

Step 5: Setting the shower base

Next the crew sets the base, or “pan,” that replaces the tub floor. Acrylic and solid-surface bases drop in and get leveled and secured; a tile shower gets a sloped mortar bed or a pre-sloped foam pan instead. Either way, the base has to pitch correctly toward the drain so water never pools.

This is the foundation of the whole shower. Get the slope right here and the finished shower drains clean for years; get it wrong and you chase standing water forever.

Step 6: Waterproofing

Before a single wall panel or tile goes up, the crew waterproofs. That means a bonded membrane or backer system on the walls and a sealed connection where the walls meet the base. In a wet room this step is invisible in the finished bathroom and completely responsible for whether it lasts.

Say two nearly identical showers go in on the same street. The one that gets a continuous waterproof membrane behind the tile is still dry in ten years; the one where someone skipped straight to green board is the one leaking behind the wall. You are paying for the part you will never see.

Step 7: Walls, glass, and fixtures

Now the room starts to look like a shower. Wall panels go up, or tile gets set and grouted over a day or two. Then the enclosure: a glass panel, a framed or frameless door, or an open walk-in entry with no door at all. Finally the crew installs the valve trim, showerhead, handheld, niche shelving, and any grab bars or bench you planned.

If this is a compact guest bath, the wall and glass choices matter even more, because a few inches of visual openness change how the whole room reads. Our guest bath remodel framework covers those trade-offs.

Step 8: Final seal, cure, and first shower

The last step is sealant at every joint, a cure window for caulk and grout, and a walkthrough. Depending on materials, the crew will tell you how long to wait before that first shower, often a day or two for grout and silicone to set. Then you use it.

A clean acrylic conversion in a standard alcove can run start to finish in a matter of days. A custom tile build with a moved drain takes longer, because tile and waterproofing both need cure time. Neither is “better,” they are different projects with different timelines.

Frequently Asked Questions

How long does a tub-to-shower conversion take?

An acrylic or solid-surface conversion in an existing alcove is often a few days of work. A full tile rebuild with plumbing changes runs longer because of cure times and the extra labor. The honest answer is that materials and how far the plumbing moves set the schedule, which is why a good contractor gives you a range after seeing the room, not a promise over the phone.

Can I use the bathroom while the work is happening?

The bathroom being converted is out of service for the duration. If it is your only bathroom, the crew plans the sequence to minimize downtime, but you should expect the toilet and shower in that room to be unusable on demo and install days. Homeowners with a second bath barely notice; homeowners with one plan around it.

Will a tub-to-shower conversion hurt resale if buyers want a tub?

It depends on your house. If you have another tub somewhere, converting a dated, unused one to a walk-in shower usually helps. If it is your home’s only tub and you are in a family neighborhood, keeping one tub can matter to buyers. We dig into that in whether a full remodel pays you back at resale.

Planning a conversion in Colorado Springs or anywhere in El Paso County? Call for a free in-home design consult and we will connect you with an independent local crew that does bathrooms, and only bathrooms, so the tile and the timeline come out right.