What Is the Most Expensive Part of a Bathroom Remodel?

Remodeling a bathroom can be an exciting upgrade for your home, but it’s no secret that costs add up quickly. If you’re planning a bathroom renovation, you might be wondering which parts of the project will hit your wallet the hardest. Understanding where the bulk of your budget will go can help you plan and prioritize your remodel. In this article, we’ll explore the most expensive parts of a bathroom remodel – from professional labor to materials like tiles and fixtures, as well as plumbing or layout changes – and explain why these components tend to cost so much. By knowing what to expect, you can make informed decisions and avoid sticker shock as you create your dream bathroom.

Bathroom Remodel Costs in Context: First, it’s helpful to know the overall scale of bathroom remodeling expenses. According to the National Kitchen and Bath Association, the average bathroom remodel runs about $11,000 (mid-range projects), while high-end renovations can easily reach $20,000 or more. Even a “typical” primary bathroom remodel can range widely – for example, $10k on the low end up to $25k+ for a larger, upscale remodel. With such a big investment at stake, it pays to know which elements of the remodel drive those costs. Often, a few key components make up the lion’s share of the budget.

Below, we break down the major cost factors in a bathroom renovation and why each can be so expensive.

Labor Costs: The Bulk of Your Budget

One of the biggest (and often underestimated) expenses in any bathroom remodel is labor. Hiring skilled professionals – contractors, plumbers, electricians, tile installers, carpenters, and more – is essential to get quality work that’s safe and up to code, but their expertise doesn’t come cheap. In fact, labor typically accounts for a very large portion of a bathroom remodel budget. Multiple sources indicate that professional labor can make up anywhere from about 30% to 60% of the total project cost. This means that if you have a $15,000 bathroom remodel, it’s not unusual for $5,000–$10,000 (or even more) of that to go toward paying the contractors and tradespeople.

There are a few reasons labor is such a significant cost. Bathroom renovations involve multiple specialized trades working in a small space – you may need a plumber to move pipes, an electrician to update lighting and wiring, a tile setter to lay intricate tile work, and so on. All of these tasks are time-consuming and often tricky due to the tight quarters and the need for waterproofing and precision. If your design is complex (for example, a custom tile pattern or a new plumbing layout), the labor time and skill required go up, and so does the cost. Labor rates also vary by location; in high-cost urban areas, contractors and licensed trades can charge higher hourly rates, which further increases the budget needed for labor. And importantly, unforeseen issues can drive labor costs up as well – if workers discover problems like hidden mold, water damage, or outdated wiring behind the walls, fixing those will require extra work (and money) you hadn’t initially planned for. All told, it’s not unusual for labor and installation expenses to end up being one of the most expensive parts of a bathroom remodel, sometimes even exceeding the cost of the materials themselves.

Why it’s so costly: Simply put, skilled labor is expensive because it ensures the job is done right. Bathrooms are complex projects in a small footprint – there’s water, electricity, and structural work all intersecting in one space. Hiring experienced professionals means paying for their time, expertise, and insurance/licensing, but it also means your new bathroom will be safe, functional, and built to last. Labor costs can be managed by careful planning (limiting changes, scheduling efficiently) or even doing some minor tasks DIY, but as a rule of thumb you should budget nearly half your renovation cost for labor in many cases. This sizable investment in labor helps avoid shoddy workmanship or code violations that could cost you more down the line.

The Wet Area (Shower and Tub) and Tile Work

If there’s one part of a bathroom remodel that homeowners consistently splurge on, it’s the shower and tub area – often referred to as the “wet area.” This includes your shower or bathtub and the surrounding walls and floors that must be waterproofed and tiled. It turns out this zone is usually the single most expensive part of a bathroom renovation. Why? The wet area combines multiple cost drivers at once: a large amount of specialized labor (for waterproofing, tiling, plumbing, glass installation, etc.), expensive materials like tile and fixtures, and often custom features like niches or benches. All of these factors make the shower/tub area a budget-intensive portion of the project.

Consider a typical cost breakdown: in one remodeling cost guide, a new shower installation was estimated at around $8,000 – making it the priciest line item in the bathroom by far (more than even plumbing or cabinetry). This figure would include installing the shower base or tub, the surrounding enclosure or tile walls, and fixtures like the showerhead and faucet. That aligns with other estimates that putting in a brand new shower/tub can run “many thousands of dollars.” On the low end, a basic tub-shower combo might be at least $1,500, but high-end custom showers or luxury spa tubs can easily cost $5,000 to $10,000 by the time all materials and labor are included. It’s no wonder this area is often cited as the costliest part of the remodel – you’re essentially rebuilding a waterproof mini-room within your bathroom.

Tile and material costs: A big contributor to wet-area cost is the tile work. Bathrooms typically feature tile on the floor and especially on shower walls or tub surrounds. The price of tile can vary drastically. There are budget-friendly ceramic tiles for just a few dollars per square foot, and then there are high-end porcelains and natural stones (like marble or granite) that can cost $5 to $50+ per square foot, especially for rare or imported styles. In fact, in premium markets you might see specialty tiles at $100 per square foot for designer collections – though most homeowners stick to much lower cost options. It’s not just the tile itself; the installation is labor-intensive and requires skill. Setting tiles (especially intricate mosaics or large-format tiles) involves careful prep, precise cuts, and proper waterproofing beneath the surface. Tile installation labor can add another $10–$20 per square foot or more to the cost, meaning even a modest-sized shower can incur thousands of dollars in tiling expenses when you add it all up. For instance, one guide notes that tiling a bath or shower area typically runs about $25 per square foot for installation alone (on top of the tile material cost). Because of this, tile work is often one of the most expensive parts of the remodel in its own right.

Why it’s so costly: The wet area is expensive for a combination of reasons. First, materials: waterproof backer boards, membranes, tiles, grout, glass shower doors – quality products here are not cheap, and cutting corners can lead to leaks or failures. Many people also choose this spot to splurge on luxury finishes (that beautiful mosaic accent or that expensive stone slab) which drives up material costs. Second, skilled labor and time: building a proper shower or tub surround involves multiple steps (demolition, plumbing setup, waterproofing, tiling, sealing) that must be done meticulously. It can take days or weeks of work, especially if custom features are includedt. Each step (pouring a shower pan, tiling a niche, installing a frameless glass door) requires expertise. Because there are so many tasks packed into this one area, the hours can really stack up – and with labor being charged hourly or by project, that translates to a big expense. Finally, complexity: if you change the design (say, convert a tub to a walk-in shower), it might involve heavy demolition and rerouting of plumbing. All told, it’s clear why the shower/tub zone is typically the costliest zone of the bathroom remodel – you’re essentially constructing a mini spa that must be waterproof, visually appealing, and highly functional, all of which require investment.

Plumbing Changes and Layout Modifications

Another factor that can send bathroom remodel costs soaring is any substantial plumbing work or layout change. If you keep your bathroom’s layout the same – meaning the toilet, sink, and shower/tub stay in their current locations – you can avoid some big expenses. But the moment you decide to move fixtures around or reconfigure the layout, be prepared for costs to climb significantly. Altering the layout usually means moving plumbing lines (water supply and drain lines) in the walls or under the floor, which is a labor-intensive job that must be done by a licensed plumber in most cases. The plumbing work for even a moderate bathroom renovation can average around $5,500 on its own, and that number only increases with more complex changes.

What makes plumbing work pricey? When you “tinker with your bathroom’s layout,” such as moving a toilet across the room or swapping a tub and a shower’s locations, you’re essentially altering the home’s infrastructure. New pipes may need to be run, old pipes capped off, flooring might have to be opened up, and walls might be removed to accommodate the changes. All of this requires time from a skilled plumber (who can charge a high hourly rate, especially in areas like big cities) and possibly a carpenter or tile installer to put things back together afterward. Even adding a new sink or shower where there wasn’t one before will involve running new plumbing lines. In an older home, you might also need to upgrade outdated pipes to meet current code or handle new fixtures, which adds cost. And don’t forget electrical changes: a new layout might require moving light fixtures or adding outlets (for example, if you want that fancy lighted mirror or a warm towel rack on a new wall). While electrical work usually costs less than major plumbing, it still requires a licensed electrician and can range roughly $40–$120 per hour of work, adding to the total.

Layout changes can also trigger permit and design costs. Many jurisdictions require permits for moving plumbing or electrical, meaning you’ll pay permit fees and possibly inspection fees as well. There might be additional costs for architectural or design plans if you’re doing a significant reconfiguration of the space. All of these factors make changing the bathroom’s footprint or fixture layout one of the more expensive aspects of remodeling.

Why it’s so costly: The old saying “time is money” applies here – major plumbing or structural changes consume a lot of time and labor. Unlike surface updates (like replacing fixtures in the same spot), layout modifications are invasive: workers must go behind or under surfaces, which often means demolition of parts of the existing bathroom before new work can even begin. Rerouting a shower drain or toilet waste line, for example, is a complex task that might involve cutting into the subfloor or concrete slab and tying into the main sewer line. These are not DIY-friendly jobs and require professional expertise, which comes at a premium. Additionally, any time you alter plumbing or structural elements, you risk unexpected complications (like discovering a rotten floor or finding that the joists can’t be cut where you planned), and solving those issues adds cost. For all these reasons, moving plumbing fixtures or making structural layout changes is often one of the costliest parts of a bathroom remodel – it brings together high-skill labor, significant time, and sometimes expensive auxiliary costs like permits or repairs.

Tip: If you’re on a tight budget, try to work with the existing layout as much as possible. Simply updating fixtures in place (replacing the toilet, sink, or tub with new ones of the same type and location) is far cheaper than rearranging the whole bathroom. Home remodeling experts often advise keeping the plumbing where it is to avoid those hefty costs.

High-End Fixtures and Materials

The finishes and fixtures you choose for your bathroom have a huge impact on both the look and the cost of the remodel. It’s entirely possible for two bathrooms of the exact same size to have vastly different budgets, simply because one homeowner chose standard, affordable fixtures and the other opted for all high-end, luxury features. Upgrading to premium materials and fixtures can quickly make this category one of the most expensive parts of a renovation. In fact, one industry report notes that splurging on luxury fixtures and finishes can double or even triple your budget compared to using more standard options.

What kind of items are we talking about? Think soaking tubs, designer faucets, rainfall showerheads, custom glass enclosures, smart toilets, stone countertops, and custom-built vanities. These are the “jewels” of a bathroom that can also come with jewel-like price tags. For example, a high-tech smart toilet (with features like bidet functions, heating, and automatic flushing) can cost anywhere from about $1,000 up to $7,500 for top-of-the-line models. By contrast, a basic standard toilet might be only a couple of hundred dollars. Likewise, a luxury freestanding bathtub or whirlpool spa tub might run $1,000 to $5,000 (or more) just to purchase, whereas a basic alcove tub could be a few hundred dollars. Custom multi-head shower systems with body sprays and digital controls can be similarly pricey, especially once you factor in the upgraded plumbing valves and extra labor to install them.

Even smaller fixtures and accessories have a wide cost range. A standard off-the-shelf faucet might be $50, whereas a designer-brand faucet in brushed brass could be $500. Lighting follows the same pattern – a basic vanity light bar might be $100, while a luxury chandelier made for damp environments could be $1,000+. And materials like countertops and flooring can vary: you could spend $200 on a laminate vanity top, or $2,000 on a slab of Carrara marble. Custom-crafted cabinetry or vanity units are another potential budget-buster; having a vanity built to your exact specifications will cost significantly more than buying a pre-made unit. For instance, installing bathroom cabinetry costs around $3,000 on average, and that price can climb higher if you choose premium wood, specialty finishes, or extra features like built-in lighting.

Why it’s so costly: High-end fixtures and materials are expensive by nature because they offer superior design, technology, or durability – and often carry a prestigious brand name. You are paying for things like quality of materials (solid brass vs. plastic internals in a faucet), better performance (a toilet that conserves water or a shower valve that maintains temperature perfectly), and aesthetic design (stylish finishes, unique looks). Additionally, luxury items sometimes require more involved installation. A wall-mounted toilet, for example, needs a recessed tank and sturdy wall framing, which adds labor. A heavy stone countertop may need extra support. Even heated floors or towel warmers, while wonderful luxuries, require electrical work and special products that add cost. All these extras contribute to making the “fixtures and finishes” category one of the costliest parts of a bathroom remodel if you go top-of-the-line.

The good news is that these costs are very much in your control – you can decide where to splurge and where to save. Many homeowners choose to invest in one or two statement pieces (say, a fabulous shower system or a beautiful vanity) and opt for more budget-friendly choices elsewhere. With a bit of research, you can also find mid-range products that mimic the look and feel of luxury brands without the sky-high price. For example, several reputable brands offer stylish faucets and showerheads that provide great quality at a fraction of the cost of ultra-luxe designer fixtures. By mixing and matching your upgrades, you can keep this portion of the budget in check while still achieving a high-end look.

Managing the Costs: Plan, Prioritize, and Save

As we’ve seen, labor, the wet area (shower/tub and tiling), plumbing changes, and high-end fixtures are typically the most expensive parts of a bathroom remodel. Now, how can you use this knowledge to your advantage? Careful planning and smart choices can help you get the bathroom you want without breaking the bank. Here are a few tips for managing these major cost factors:

• Keep the same layout when possible: Avoid moving the toilet, shower, or sink if you can. Sticking with your existing plumbing layout means you won’t have to pay for costly rerouting of pipes or structural changes. You can still give the space a fresh look by replacing or refinishing fixtures in their current positions.
• Select mid-range materials and fixtures: You don’t have to buy the most expensive tile or fittings to get a beautiful result. Many mid-range tiles and fixtures mimic the look of luxury brands at a fraction of the cost. For instance, you might choose a good-quality porcelain tile that looks like marble, or a well-reviewed faucet from a reputable mainstream brand, to save thousands of dollars while still achieving an elegant design.
• Do DIY for small improvements: Labor is a huge cost, so consider tackling simpler tasks yourself if you have the skills and confidence. Painting walls, installing accessories (like towel bars or shelves), or even doing some demolition (removing old tiles or fixtures) are tasks some handy homeowners can do to shave off labor hours. (Always know your limits – leave critical plumbing, electrical, and detailed tile work to the pros to avoid costly mistakes.)
• Shop around and get multiple quotes: The cost of labor and services can vary widely between contractors. It pays to get multiple estimates for your bathroom remodel so you can compare prices and see where one contractor might be charging more or less. Be sure to look at what each quote includes (materials, permits, etc.) to make an informed decision. Sometimes, a higher upfront quote might cover more and prevent surprise add-ons later.
• Plan for the unexpected: No matter how well you budget, renovations can surprise you. Set aside a contingency fund of about 10–20% of your budget for any unforeseen issues that arise – for example, discovering hidden water damage or deciding to upgrade an old plumbing line once the walls are open. Having this cushion means you won’t be financially stressed if something unexpected comes up during construction.

By keeping these strategies in mind, you can better control the costs of your bathroom remodel. The key is to know where it’s worth investing more and where you can opt for cost-saving alternatives. For many homeowners, splurging on one wow factor – such as a great shower – while saving on other areas is a satisfying compromise. Others might prioritize durable infrastructure (quality plumbing and waterproofing) and choose basic finishes that can be upgraded later. There’s no one-size-fits-all answer, but now you’re equipped with knowledge about which parts of a bathroom remodel tend to be the most expensive.

In summary, the most expensive parts of a bathroom remodel usually include the labor (often the single largest expense category), the wet area (shower/tub and extensive tile work), any major plumbing or layout changes, and the choice of high-end fixtures/materials. These elements are cost-intensive because they involve skilled work, critical behind-the-scenes infrastructure, and premium products that elevate the bathroom’s functionality and style. By understanding why these components cost so much – and planning for them – you can budget more effectively and make decisions that give you the best value for your investment. A bathroom remodel is indeed a significant project, but with careful planning, it can be a worthwhile one that adds comfort, beauty, and value to your home for years to come. Good luck with your remodeling journey!

Sources:

• This Old House – Bathroom Remodel Cost in 2025: Comprehensive cost breakdown and insights on high-cost areas (labor share, wet area expenses, etc.) thisoldhouse.comthisoldhouse.com.
• MyHome US (NYC Remodeler) – What is the Most Expensive Part of a Bathroom Remodel?: Discusses cost factors like tiling, plumbing, and luxury fixtures in a high-cost city context myhomeus.commyhomeus.com.
• Salt & Pepper Design/Construction – The Most Expensive Parts of a Bathroom Remodel: Insights on labor (30–50% of budget), tile work, plumbing fixtures, and structural changes from a contractor’s perspective spdc.netspdc.net.
• Royalty Plumbing – Average Cost of a Bathroom Remodel: Notes that the shower/tub and related tiling is often the most expensive part of a bathroom remodel, with some deluxe tub-shower setups costing up to $10k royaltyplumbing.com.
• Additional data from home improvement resources on typical costs for plumbing work (avg. ~$5,500) thisoldhouse.com, shower installation (~$8k) thisoldhouse.com, and bathroom cabinetry (~$3k) thisoldhouse.com to illustrate how various components contribute to the total cost.