Cost GuideUpdated June 24, 2026
Converting a bathtub to a walk-in shower is a popular bathroom remodeling project for homeowners in Malta. Many houses in this area were built in the mid-1900s, so we see a lot of original bathrooms that no longer fit a household's needs. Whether you're after easier access, want to update the look, or need a safer setup for aging in place, swapping out an old tub for a shower seems straightforward, but there are quite a few plumbing realities to keep in mind.
Why Older Malta Homes Complicate Conversions
Most houses in Malta are single-family homes with plumbing systems that may be decades old. Galvanized steel supply lines and clay-tile drains are common, both of which can show their age during a remodel. If you open up a wall or floor and find corroded pipe or a drain clogged with sediment, your project can go from simple fixture swap to full pipe repair.
On top of that, the area's moderate water hardness means you'll want to check for scale buildup in supply lines. Clay soils and flat terrain can make drainage slow, especially in basement bathrooms. Often, we advise starting any remodel with a look at the existing plumbing's overall condition.
Main Plumbing Steps in a Tub-to-Shower Conversion
- Demo and Prep: Remove the old tub, inspect the subfloor and wall framing for moisture or rot, common if a tub leaked unnoticed.
- Drain Relocation: Tubs and showers often have drains in different spots. You may need to move or extend the drain line. In older Malta homes, be ready for cast-iron or clay-tile drains that require special tools to cut and reconnect.
- Supply Line Changes: Shower valves and fixtures may need new rough-ins, and if you still have galvanized pipes, it's smart to update them now to copper or PEX. This reduces long-term risk of leaks and corrosion.
- Shower Pan Install: A watertight shower base is critical. If the floor is out of level, which happens in homes with foundation settling from Malta's freeze-thaw cycles, you'll need to address that before installing the pan.
- Waterproofing: Waterproofing the shower floor and walls with membranes or a liquid sealant is a must, especially with clay soils underfoot that can draw moisture upwards if the barrier fails.
- Fixture and Trim: Set the shower valve, attach plumbing trim, and test water flow and drains for leaks before finishing tile or wall panels.
These basics can get complicated fast if you uncover rusted waste lines or slow drains. We frequently recommend a full inspection of pipes and drains as part of the planning process. If you need help with updating valves or modern fixtures, check our faucet and fixture installation services for details.
What Impacts the Price Tag in Malta
Several factors drive cost beyond the new shower itself. Unexpected repairs top the list. If your home still has old galvanized or corroded pipes, or if the drain line is misaligned or undersized (common in mid-century houses), you may spend extra on pipe repair and repiping before the shower even goes in.
Moving drains or supply lines means opening up floors or walls. This adds both time and materials. If you hit clay-tile sewer lines, you might also need specialized sewer line services. Shower base choice, tile type, and fixture quality will all affect budget, but plumbing usually accounts for a quarter to a third of total project cost.
Watch for Warning Signs During the Project
- Persistent sewer odors after demo, could mean a failed trap or cracked pipe that needs leak detection and repair.
- Low water pressure in the new shower, sign of partial supply line blockage or deteriorating galvanized pipe.
- Slow draining, may require professional drain cleaning if debris or scale is present in old lines.
- Water stains around the subfloor, points to past leaks or ongoing moisture, which should be fixed before finishing walls and flooring.
Addressing these signs early can prevent bigger problems with mold, ongoing leaks, or expensive repairs after the remodel is done.
Building Codes and Accessibility Upgrades
Local code in Malta and throughout DeKalb County requires proper venting of all new fixtures, use of approved materials, and safe water temperatures from the mixing valve. If you're upgrading for accessibility, there are specific requirements for grab bar placement, minimum entry widths, and non-slip flooring. Adding a bench or handheld shower often means running extra supply lines, which can get tricky in tight, older wall cavities.
We've seen that planning for accessibility upfront saves headaches. If you need to upgrade your water heater to support a new rain head or body sprays, our water heater services page covers best options for consistent hot water.
Prevent Water Damage After Remodeling
Once your new walk-in shower is installed, keeping up with regular checks makes a difference. Malta's clay soils and flat lots can promote water seepage around foundations, so make sure your drains are flowing and shutoffs are easy to access. A yearly check of exposed plumbing, along with routine leak detection and repair, helps catch problems before they escalate. If the shower is in a basement or lower-level bath, consider reviewing your sump system as well, see our sump pump services for tips on keeping water out.
Our team works with Malta homeowners every season to make bathroom upgrades easier and safer. If you're weighing a tub-to-shower conversion and want the plumbing handled right, call us at 779-217-8424. We're always here to answer questions and support your next project.