The Bismarck Guide to Tub-to-Shower Conversions: Planning Your Transformation
If you’ve lived in your Bismarck home for more than a few years, you’ve likely looked at your standard contractor-grade bathtub and wondered if there was a better way. Whether you’re tired of stepping over a high porcelain wall every morning, frustrated by moldy grout lines, or simply ready for a more modern aesthetic, the tub-to-shower conversion has become the most requested bathroom remodel in North Dakota.
At The Bathroom Store, we’ve performed hundreds of these transformations across Bismarck, Mandan, and the surrounding communities. We’ve seen firsthand how a well-executed conversion can turn a cramped, dated bathroom into a spacious, spa-like retreat. But a successful project requires more than just swapping out a fixture—it requires a blueprint for durability and local expertise.
Why Bismarck Homeowners are Ditching the Tub
For decades, the “standard” American bathroom included a bathtub-shower combo. However, lifestyle trends in the 701 are shifting. Homeowners are prioritizing safety, ease of cleaning, and high-end materials like The Onyx Collection over a tub they rarely use.
1. Reclaiming Your Bathroom Space
Standard alcove tubs take up a significant footprint but offer very little usable “standing room.” By converting to a walk-in shower, you open up the visual space of the room. Without the high tub wall acting as a barrier, even a small bathroom in a North Bismarck split-level feels larger and more inviting.
2. Eliminating the “Hard Water” Headache
Bismarck and Mandan are notorious for hard water. Minerals and iron levels in our local water table love to bond to porcelain and fiberglass. Over time, this leads to permanent staining and “etching” that no amount of scrubbing can fix. By switching to a non-porous solid surface shower base and wall system, you eliminate the material that “traps” those minerals.
3. Safety and Aging-in-Place
Safety is a primary driver for many of our clients. Stepping over a 14-inch tub wall onto a wet, slippery surface is a recipe for a fall. A low-threshold walk-in shower provides a much safer entry point, especially when paired with slip-resistant bases and strategically placed grab bars.
The Engineering Behind a Professional Conversion
One reason we specialize specifically in bathroom remodeling is that a tub-to-shower conversion is a precision engineering project. You aren’t just putting up new walls; you are reconfiguring the “guts” of your bathroom. When we take on a project in Bismarck, we follow a strict technical blueprint.
Subfloor Integrity and Moisture Detection
In many older Bismarck homes, particularly those built in the 70s and 80s, the subfloor beneath the existing tub has been exposed to slow, “invisible” leaks for years. When we pull the old unit out, our first task is a thorough inspection of the floor joists and subfloor. We don’t just “cover up” problems—we ensure the foundation is bone-dry and structurally sound before the new shower base is set.
The Plumbing Pivot: 1.5” vs. 2” Drains
This is where many general contractors cut corners. A bathtub typically utilizes a 1.5-inch drain line. However, a modern walk-in shower—especially one with high-flow showerheads—requires a 2-inch drain to handle the water volume properly. As Bismarck bathroom specialists, we reconfigure your plumbing to meet modern codes, ensuring you never deal with “shower pooling” or slow drains.
Custom-Fabricated Onyx Bases
We move away from the flimsy, “hollow-sounding” plastic shower pans found at big-box stores. We utilize custom-fabricated Onyx bases. These are solid-surface, heavy-duty pans that are measured to fit your specific bathroom footprint. They don’t flex, they don’t crack, and they provide a rock-solid foundation for the rest of your shower.
Designing for Your Neighborhood: From South Bismarck to Lincoln
A bathroom remodel should respect the architecture of your home while reflecting your personal style. Because we serve a wide range of neighborhoods, we’ve developed design profiles that fit the local Bismarck aesthetic.
- The Modern Minimalist: Perfect for newer builds in North Bismarck. We often see requests for slate-grey Onyx panels paired with matte black hardware and frameless glass doors.
- The Classic Restoration: For homes near the Capitol or in the Cathedral District, we recommend textures that mimic traditional stone or subway tile, providing a timeless look without the maintenance of real grout.
- The Safety-First Suite: These designs focus on high-contrast colors (to help with depth perception) and extra-wide entryways for maximum accessibility.
What to Expect During Your Remodel
We understand that a bathroom remodel can be disruptive. While we pride ourselves on efficiency, our priority is always quality control. A typical tub-to-shower conversion involves several distinct phases:
- Preparation and Protection: We treat your home with respect. This means protecting your flooring and containing dust before a single tile is removed.
- The “Rip-Out”: We remove the old tub, surround, and hardware, exposing the studs and plumbing.
- The Infrastructure Phase: This is where the magic happens. We upgrade the valves, reconfigure the drain, and ensure the walls are perfectly plumb and waterproofed.
- Onyx Installation: We install your custom wall panels and base. Because there is no grout, this process is cleaner and creates a seamless, leak-proof environment.
- The Finishing Touches: We install your fixtures, glass doors, and any accessories like recessed caddies or seating.
Frequently Asked Questions (Bismarck Homeowner Edition)
Does removing the only tub hurt my home’s resale value?
This is a common concern. In a three-bathroom home, removing one tub for a high-end walk-in shower almost always increases value because it adds a modern, “upgraded” feel. In a one-bathroom home, it’s a personal choice, but many buyers today actually prefer a large, high-quality shower over a cramped tub they will never use.
Is the Onyx Collection really grout-free?
Yes. The panels are solid surfaces that overlap and are sealed with high-grade silicone. You will never have to scrub a grout line with a toothbrush ever again. This is the primary reason our Bismarck and Fargo clients choose this system.
How do I maintain my new shower?
Maintenance is incredibly simple. Because the material is non-porous, soap scum and minerals don’t “bond” to it. A simple wipe-down with a squeegee or a mild, non-abrasive cleaner is all it takes to keep it looking day-one new for decades.
Ready to Reclaim Your Bathroom?
Your bathroom should be a place of relaxation, not a source of frustration or a safety hazard. If you are tired of looking at a stained, dated bathtub and are ready to experience the durability of a custom walk-in shower, The Bathroom Store is here to help.
We are local, family-owned, and dedicated to providing Bismarck and Mandan with the highest quality bathroom transformations. We don’t just build showers; we build peace of mind.
[Schedule Your Free Bismarck Consultation Today]
Or visit our local gallery to see recent transformations in your neighborhood.


