Updated 8/29/2024
Installing a new bathtub is not for the faint of heart. Not only do you have the typical plumbing considerations – making sure the seal is watertight, connecting the pipes correctly, etc. but you’re working with a large, heavy, solid object in a tight space. It’s not impossible to do it on your own, but this is a job you want to go into with as much prior knowledge as possible.
What to Consider in Advance
Before you make your decision on whether or not to install the bathtub yourself or call a plumber, ask yourself these questions:
- Are you installing or replacing a cast-iron tub? Either way, this is a huge undertaking. If you’re removing an old cast-iron bathtub from your home, you may be able to sell it for scrap metal, but first, you have to maneuver that enormous, heavy tub through your home and out the door. You may have to use a sledgehammer to break it up first, which means extra work and mess. If you’re installing a cast-iron tub, this could involve reinforcing the bathroom floor first and again in other places if you have to carry the tub through the house.
- Is the new tub the same size and orientation as the old one? If so, the installation will be relatively straightforward. Otherwise, if the new tub has a different footprint or if the drain is on the opposite side, the job could involve modifying the pipes. Plus, you might need to retile the walls around the tub and/or refresh the waterproofing over the drywall.
- Do you have the right tools? Bathtub removal and installation require an arsenal of tools that not everyone already has on hand. Pliers, wrenches, and screwdrivers are in most homeowners’ toolboxes already, but more specialized equipment such as a keyhole saw and shower stem socket wrench aren’t as common.
- Do you have plenty of willing assistants? Even if everything goes exactly according to plan, installing a bathtub is not a one-person job. The lifting and carrying alone will require at least two or three people. When you’re planning a big job like this, make sure you have plenty of friends who are willing to help out – maybe in exchange for pizza!
Be Prepared for Complications
As you know, DIY jobs rarely go exactly according to the plan. Every home has its quirks and it’s impossible to anticipate every twist and turn the job can take. With a bathtub installation, you could be in for some nasty surprises.
- Can you get the tubs through the bathroom door? Often, it’s impossible to move a tub into or out of a bathroom without removing a wall. Do you have the know-how to remove and replace a bathroom wall without causing any damage?
- Is there enough room to maneuver? Even if the doorway is wide enough to get a tub through, most bathrooms just don’t have enough room to move a tub in. It’s frequently necessary to temporarily remove the toilet and even the vanity until the tub installation is finished.
- Is the floor level? It’s not uncommon for bathroom floors to settle over time, so it can be very tricky to get the new tub perfectly level. If it’s even a little bit wobbly, it can create a safety hazard in addition to putting a strain on the plumbing that could lead to potentially disastrous leaks.
What else to consider?
Water Supply Lines
Before you begin installing your new bathtub, it’s important to assess your water supply lines. Ensure they are in good condition and compatible with the new tub, especially if it’s larger or has different water requirements. In some cases, you might need to upgrade your plumbing to handle the increased water flow, ensuring efficient and safe operation.
Drainage System Compatibility
Your bathtub’s drainage system must be capable of efficiently removing water, particularly if you’re installing a larger or deeper tub. Verify that your existing drainage system can handle the new tub’s specifications, or consider making necessary modifications to avoid slow drainage or potential backups.
Insulation and Soundproofing
During installation, consider adding insulation around the bathtub. This not only helps retain heat, keeping your bathwater warm for longer, but also acts as a sound barrier. Soundproofing can be particularly beneficial in multi-story homes, reducing noise transmission and creating a more peaceful environment.
Permits and Building Codes
Bathtub installation may require permits, depending on your local building codes. It’s crucial to check these regulations before beginning your project. Compliance ensures safety, avoids potential fines, and keeps your renovation project on track. Consult your local building authority to determine the specific requirements in your area.
Accessibility Considerations
If you live with elderly family members or individuals with mobility challenges, consider installing accessibility features such as grab bars or even a walk-in tub. These additions can significantly improve the safety and usability of your bathroom, making it a more inclusive space for everyone.
Enhanced Waterproofing
Beyond sealing around the tub, consider implementing additional waterproofing measures. Installing a waterproof membrane behind the walls and on the floor adds an extra layer of protection against water damage. This step is particularly important in bathrooms, where moisture can lead to mold and structural issues over time.
Ventilation Improvements
Proper ventilation is critical in a bathroom to prevent moisture buildup, which can lead to mold and mildew. Ensure your bathroom has an adequately sized exhaust fan, or consider upgrading it during your renovation. A well-ventilated bathroom will maintain a healthier environment and preserve the longevity of your fixtures and finishes.
Call the Plumbing & Cooling Nerds To Install Your New Tub
As we said, it’s not impossible to install a bathtub yourself, but depending on your skill set it may make a lot more sense to let the pros handle it. And it makes even more sense to choose plumbers who are so obsessed with our work that we proudly call ourselves the Plumbing & Cooling Nerds. If you’re in Southwest Florida and you want your bathtub installation done to our top-notch nerdy standards, give us a call at (239) 215-3330 or schedule an appointment online.
