The price range for a standard bathtub is typically between $800 and $4,600 with installation. If you add a tiled tub surround, you may spend $1,000 to $3,500 in construction costs. If you want a more vintage choice like clawfoot tubs, the cost for the bathtub alone is $600 to $7,200, and for contemporary freestanding bathtubs, the price is even higher.

Those with limited mobility may want a walk-in tub, which costs between $2,000 and $12,000, depending on the size, brand, and features. These tubs are particularly beneficial for seniors or individuals with disabilities. They come with a leak-proof door and enhanced safety.

Plumbers often install and replace bathtubs as part of their services because it involves connecting plumbing fixtures and making sure they function properly. Positioning and securing the tub in place may require the assistance of a contractor or handyperson.

Alternatively, you can hire a bathroom remodel company to replace your tub or convert it to a shower. There are many different nationwide companies that offer 1-day services:

• Bath Fitter costs $3,000 to $7,500 and mainly specializes in tub liners and conversions.
• Re-Bath costs $5,000 to $30,000 and offers conversions, replacements, liners, and full bathroom remodels.
• Jacuzzi Bath Remodel costs $11,000 to $20,000 and specializes in jetted tubs.
• Bath Planet costs $6,000 to $17,000 and offers shower and tub replacements and conversions.

If you want to replace your bathtub, it's important to take accurate measurements to make sure the new tub fits into the existing space. Make sure you:

• Measure the length of the tub from the outside.
• Measure the outside width of the tub.
• Measure the height of the tub from the bottom to the top rim.
• Make sure there are no irregular shapes or contours, like armrests or curved backs that might impact the installation.
• Measure the space in your bathroom where you plan to install the tub. 
• Double-check your measurements.

When getting estimates from bathtub replacement contractors, be sure to follow these steps:

• Consider only licensed, bonded, and insured contractors with years of bathtub replacement experience.
• Look for bathtub contractors with positive reviews on HomeGuide and Google.
• Confirm their membership in professional organizations if possible. This shows commitment to their trade.
• Find contractors that fit your schedule and budget.

Here are some important questions to ask your contractor before the project starts:

• How long have you been installing or replacing bathtubs?
• How many bathtubs have you installed or replaced in the last year?
• Do you carry insurance, licenses, and surety bonds?
• Will you give me a detailed quote that includes all material and labor costs?
• How long will the tub replcement take?
• Do you take care of all disposal and cleanup?
• When can you start?
• Will this job need a permit? If so, will you handle the permitting process?
• Do you include a warranty on your workmanship?