Undermount Bathtubs: Elevate Your Bathroom to a Luxurious Spa Retreat

The desire for a relaxing spa experience at home remains strong. A beautiful bathtub is often the centerpiece of that dream. If you’re looking to create a sleek and sophisticated bathroom, an undermount bathtub offers an elegant solution. Its clean lines and integrated design create a seamless look, perfect for a spa-like atmosphere. Are you considering an undermount tub? Read on to discover if it’s the right choice for your bathroom renovation.

What is an Undermount Bathtub?

An undermount bathtub is a stylish alternative to traditional bathtubs. Unlike drop-in tubs, which typically have a visible rim, an undermount tub is installed beneath a deck. This design creates a smooth, integrated appearance, where the deck surface flows seamlessly into the tub basin. Think of it as the bathtub equivalent of an undermount kitchen sink – the focus is on the clean, uncluttered aesthetic.

Undermount tubs feature either feet or a flat base that rests directly on the floor. The deck, built around the tub, conceals the rim, leaving only the basin visible. This design element is key to the undermount tub’s appeal, contributing to a luxurious and modern bathroom design.

“The deck surface hides the rim and hangs over the edge of the tub into the basin,” explains Chuck Khiel, Vice President of Fred Home Improvement. “It has the same look as an undermount kitchen sink. The homeowner is looking to create a spa feeling in their bathrooms.

Types of Undermount Bathtubs

Undermount bathtubs come in a variety of shapes, sizes, and materials to suit different bathroom designs and preferences. You’ll find options to fit nearly any bathroom layout and style.

Shapes: Choose from a wide array of shapes, including oval, round, rectangular, and triangular. Custom shapes are also available, allowing you to create a truly unique bathing experience. “I’ve even seen a four-foot-square corner undermount tub,” says Khiel.
Materials: The most common material for undermount tubs is acrylic, known for its excellent heat retention properties. You can also find undermount tubs made from solid surface materials, enamel-coated steel, and even luxurious copper. Materials come in a variety of colors.
Sizes: From compact tubs ideal for smaller bathrooms to spacious models designed for ultimate relaxation, there’s an undermount tub to fit your needs. Custom sizes are available.
Features: Enhance your bathing experience with a range of features. Consider deep tubs with sloped sides for comfortable soaking, jetted tubs for hydrotherapy, or tubs equipped with integrated speakers. Some models even allow the addition of features like hand-held shower heads.

Best Materials for an Undermount Bathtub Deck

The choice of material for the deck surrounding your undermount bathtub is crucial for both aesthetics and functionality. For optimal performance and a seamless look, solid surface materials are highly recommended.

Solid surface materials offer excellent durability and resistance to water damage, ensuring the longevity of your bathroom renovation. “It performs best,” says Khiel.

Matching the deck material to the surrounding walls can create a cohesive and visually appealing design. Popular choices include natural stones or manufactured solid surface products.

While bathroom tile is a common choice for bathroom surfaces, it’s generally not recommended for undermount tub decks. Tile can be more difficult to maintain, and the expansion and contraction of the deck’s wood structure may lead to cracking.

Undermount Bathtub Costs: What to Expect

Undermount bathtubs generally cost about the same as drop-in tubs, but often less than freestanding tubs. The final price varies depending on several factors:

Material: The cost varies considerably depending on the material used (acrylic, copper, etc.).
Size: Larger, custom sizes will command a higher price.
Shape: Complex shapes might increase the cost.
Features: Added features like jets or speakers will impact the price.

On average, a good quality standard five-foot acrylic undermount tub starts around $1,500. A copper tub will be more expensive. It can sell for as much as $10,000.

Undermount Bathtub Installation: A Professional Touch

Installing an undermount bathtub is typically more complex than installing a drop-in tub. The process requires precise measurements and careful execution to ensure a seamless and watertight finish.

“It has to sit absolutely level on the subfloor,” says Khiel. The framing for the surround is done right up to the height of the tub.”

The installation involves several critical steps:

Precise leveling of the tub on the subfloor.
Accurate framing of the surround to the exact height of the tub.
Templating and cutting the deck surface material.
Careful placement of the deck material onto the surround, ensuring a perfect fit.

The level of precision required makes it a challenging DIY project, highlighting the value of professional installation to prevent issues like deck cracking and water leaks.

Top Undermount Bathtub Recommendations

The best undermount bathtub for your bathroom depends on your available space, budget, and design preferences. Consider these options:

Good Value: “Kohler makes good undermount tubs,” says Ewers. “Their Underscore series comes in multiple sizes. They have a clean look that’s really popular, but no options for customization.” Cost: $1,200 to $7,600.
Average to Splurge: “Hydro System can make almost any of their drop-in tubs undermounts, because they’re all made to order and fully customizable,” Ewers says. Cost: $2,000 to $4,000.
Splurge: “MTI Baths is a higher price point in general, but they have beautiful tubs that are custom-made,” says Ewers. Cost: $3,000 to $8,000.

By carefully considering your needs and budget, you can find the perfect undermount bathtub to transform your bathroom into a luxurious and relaxing sanctuary.