How Long Do Bathtubs Last? Get Out the Bubbles, the Tub’s Here to Stay!

How long do bathtubs last? A bathtub can last 10 to 15 years or far longer, depending on the material and how well it's maintained. Many materials that last decades cost several thousand dollars, so you need to consider the budget next to the aesthetic you want to create. Keep reading to learn how long bathtubs last and how to extend your tub’s life.

How Long Does a Bathtub Last?

The material of a bathtub and how well you care for it determine its longevity. The most common materials are acrylic, fiberglass, porcelain-enameled steel, porcelain-enameled cast iron, and stone. 

• Fiberglass: These lightweight, affordable bathtubs are popular for secondary bathrooms and last about 10 years. However, fiberglass can be more prone to bending, twisting, and scratching than other materials.

• Acrylic: Acrylic tubs are made of several layers of clear plastic over fiberglass and last about 10 to 15 years. They come in various colors and retain heat better than fiberglass bathtubs. 

• Porcelain-enameled steel: These tubs are affordable and durable, though they are heavier and scratch easier than acrylic or fiberglass models. These bathtubs can last up to 20 years. 

• Porcelain-enameled cast iron: Cast iron increases the tub’s durability and, unfortunately, weight. These strong tubs can last 10 to 30 years. However, you’ll need to ensure the floor supports the weight. 

• Cast Polymer/Stone: Cast-polymer bathtubs are heavy but super durable. While they’re a timeless classic, they aren’t great at heat retention. Like cast iron tubs, they can last up to 30 years. 

Factors Influencing How Long Bathtubs Last

A few factors determine how long the tub lasts. Some are more influential than others, but consistent care can keep the bathtub shiny and clean for years to come. 

• Materials: The bathtub’s material probably plays the biggest role in its longevity, with cast iron and cast polymers offering the best durability. 

• Maintenance routine: Clean the bathtub’s surface, finish, or glaze with non-abrasive cleaners appropriate to its materials. 

• Use frequency: Pick a more durable bathtub for high-use bathrooms, saving budget-friendly models for guest bathrooms.

Signs It’s Time to Replace a Bathtub

Over time, bathtubs can start to show wear and tear. Sometimes, the damage is obvious, and other times, it’s more subtle, so here are the signs to watch for:

• Small cracks

• Leaks that reappear after repairs 

• Stains that don’t wash away

• Visible mold and mildew or mold and mildew found in walls, surround, or around faucets

• An uncomfortable bathtub that doesn’t fit your lifestyle

How to Increase the Life Span of a Bathtub

You can extend the bathtub's life through regular care and maintenance, which can look much like the following:

• Consistent cleaning with gentle, non-abrasive cleaners: Use cleaners designed for the bathtub’s material. Avoid steel wool, scouring pads, or hard-bristled brushes; use soft sponges and cloths instead.

• Prevent surface damage: Well-secured shower caddies, shelves, shower storage, and bath mats on the bottom of the bathtub can prevent items from being accidentally scratched. 

• Rinse and wipe the tub after each use. Consider rinsing and wiping down the bathtub to keep the surface cleaner between deeper weekly cleanings.

• Reduce sun exposure: If your bathroom has direct sunlight, consider blinds or shades to protect the bathtub from UV damage.

• Inspect for and repair chips and cracks: Regularly inspect the tub for dents, cracks, and chips on its surface and fix them if you find them. 

• Polish: A soft rag or a gentle buffing pad can polish the bathtub and maintain its water-shedding properties. You can also apply car wax to high-wear areas on the sides of the bathtub. (Do not apply wax to the bottom of the bathtub.)

• Refinish or reglaze: A bathtub reglazing or refinishing costs between $200 and $650, compared to several thousand to install a new bathtub. 

• Ensure proper bathroom ventilation: Excess moisture can lead to mold and mildew in and around the bathtub. It can also cause damage to the walls and floor supporting the tub. 

Warranties for Bathtubs

Bathtub warranties vary by brand and store. Before you buy, take a look at these warranty features:

• Coverage duration

• Covered components

• Exclusions or exceptions

• Required registrations

• Actions on your part that may void the warranty

Bathtub warranties may cover the cost of replacement fixtures, defective materials, and cracks or leaks unrelated to regular use. Some warranties include professional repair services, so you don’t have to find a repair person. However, beware if you’re considering a custom-made tub. They may have limited warranties or no warranties at all. 

Repairing vs. Replacing Bathtubs

Bathtubs can be pricey, especially when replacing an expensive antique or specialty model. However, permanent stains (potential breeding grounds for bacteria), leaks that need regular repair, or if the bathtub type doesn’t work for your lifestyle are all reasons to replace rather than repair.