2020 Bathroom Addition Cost | How Much To Add A Bathroom

Table of Contents

  1. Bathroom Additions Cost
    1. Pipe Installation Cost
    2. Shower Installation Cost
    3. Bathtub Installation Cost
    4. Toilet Installation Cost
    5. Sink Installation Cost
    6. Faucet Installation Cost
    7. Flooring Installation Cost
    8. Countertop Installation Cost
    9. Cabinet Installation Cost
    10. Other Bathroom Addition Cost Considerations
  2. Bathroom Remodeling Costs
    1. Showers & Tubs
    2. Toilets
    3. Sinks & Faucets
    4. Flooring
    5. Countertops
    6. Cabinets
  3. Find A Bathroom Remodeling Contractor

Bathroom Additions Cost

The cost of adding a bathroom varies greatly based on your specific project. For example, if plumbing is already in place and you are not moving items around, a very simple bathroom addition can cost as low as $3,000.

However, more likely than not, you’re adding a brand new bathroom or converting a room without plumbing to a bathroom. If that is the case, the cost to add a bathroom in your home will be closer to $15,000, for a basic bathroom.

If you add custom features or expensive upgrades, your bathroom addition cost could easily excel to $25,000. Luckily, this price includes everything, from plumbing and electrical to showers, sinks, toilets and more.

If you already have a few items in place, your bathroom addition will of course be less. To see exactly how much, see what each bathroom installation project costs below.

Pipe Installation Cost

If you’re adding a brand new bathroom or converting a bedroom into a bathroom, you first need to add new plumbing pipes. After all, you need water pressure for your sink and shower and drain pipes for your toilet. Since pipes go behind all walls, bathroom contractors or plumbers add pipes before anything else.

Most homeowners spend roughly $1,000 to install new plumbing pipes. The cost may go up if you’re adding a shower tub combo. The price will also fluctuate based on the size of your bathroom and pipe material.

Shower Installation Cost

The focal point of any bathroom is the shower (unless it’s a half-bathroom). Beyond design, the shower is where you really go to relax. Therefore, you deserve a shower that entices you to come home. You deserve a spa-like shower.

Of course, upgraded showers come with upgraded costs. While the average shower installation cost is $2,997, we have seen shower additions range from $500 to $10,000.

Of course, there are a few different parts that come with all showers. To keep your shower addition cost down, review the prices below.

A new shower is a significant portion of your new bathroom budget. Fortunately, it often makes up one-third of the total bathroom addition cost.

Shower Installation Cost

Bathtub Installation Cost

Along with a shower, many homeowners yearn for a luxurious bathtub. After all, chances are, you’re not standing in your shower for more than 10 minutes. Lying down is a whole new story.

According to ImproveNet data, the average bathtub installation cost is approximately $2,800. More often than not, tub installations cost less because you’re not adding a shower tub combo or forgoing expensive tub options. See the bathtub cost ranges below. Remember, these costs do not include installation.

Toilet Installation Cost

Not the most glamorous part of the bathroom but frequently used, every bathroom needs a toilet. If pipes are in place and you don’t go overboard on the actual toilet price, your toilet installation cost should not exceed $600. Before you buy your next toilet, consider the following:

  • One-piece toilets are easier to install than two-piece toilets.
  • For the toilet bowl, you’ll have to decide between compact elongated, elongated and round front.
  • Wall-hung toilets save space, but usually cost more to repair.
  • For flushing, you’ll have to decide between gravity and assisted flush systems. Assisted are more powerful.

Sink Installation Cost

If you ever browse sink styles online, you’ll notice there are quite a few. In fact, in terms of design, there are more sinks than any other bathroom feature. Therefore, estimating this cost can be difficult.

Nevertheless, most homeowners spend between $250 and $500 to professionally install a sink. However, depending on your bathroom sink style (vessel, undermount or pedestal) your sink installation cost could swell up to $1,000.

In addition to the sink style, you’ll have to consider hardware as well as the sink material. Most bathroom sinks are made of one of the following:

  1. Acrylic: Most affordable
  2. Stainless Steel: Very durable
  3. Cast Iron: Requires more care
  4. Fireclay: Most expensive

Cost To Add Bathroom

Faucet Installation Cost

Along the same lines as your sink, your bathroom faucet, while small, can still make a big impact in your bathroom. In fact, if you’ve stayed relatively conservative with other elements in the bathroom, the faucet is a great way to splurge and still maintain your bathroom addition budget.

Bathroom faucet finishes range from brass and chrome to stainless steel and brushed nickel. The majority of your faucet installation cost will come from materials. If plumbing is in place, bathroom remodeling contractors should be able to install a faucet in less than to two hours. As such, the total cost to add a new faucet usually ranges between $174 and $250.

Flooring Installation Cost

Let’s jump back to a few bigger items. Beyond the shower, another dominant feature is usually the floors. Bathroom floors have come a long way over the years, giving you more options, colors and designs to choose from. While tile is still a popular choice, other trendy materials have emerged.

The average flooring addition cost is roughly $2,300, but the cost truly comes down to material, as you can see below:

Type of Flooring

Average Installation Cost











As you can see, vinyl is the cheapest option on the market. However, if you plan on selling your home soon, vinyl isn’t a sexy choice. Potential buyers are looking for tile or even hardwood. Keep that in mind as you build your new bathroom.

Build A Bathroom

Countertop Installation Cost

Just like floors, there’s a small barrier to entry when it comes to bathroom counters. Back in the day, laminate was all the rage. Today, laminate is associated with a cheap bathroom addition. Quarts and granite have dominated the countertop industry recently, while stone is always a popular choice for larger bathroom remodeling budgets.

Nevertheless, due to wide range of pure material prices, countertop installation costs range from $2,000 to $5,000. See all bathroom countertop material costs on our cost estimator.

Cabinet Installation Cost

Besides the shower or tub, the other significant portion of your bathroom addition will come from your cabinets. Installing new cabinets is not cheap. The material and whether or not you hire a contractor determines the price. Store-bought bathroom cabinets will keep costs down significantly. In fact, custom cabinets can cost as much as $500 more per cabinet. Therefore, if you’re installing four cabinets, that’s an extra $2,000.

Nevertheless, if you hire a bathroom contractor, expect to pay roughly $4,000 for the entire cabinet installation project.

Other Bathroom Addition Cost Considerations

If you add all features above, you’re good to go. However, your bathroom should be your sanctuary within your home. Like any room, there are features that amplify the experience. Below are a few other additions (and their costs) homeowners are adding to new bathrooms:

Bathroom Remodel Costs Bathroom Remodeling Costs

Bathroom Remodeling Costs

Hopefully, you already have a bathroom in place and you only have to worry about bathroom remodeling costs instead of bathroom addition costs. If that’s the case, you shouldn’t pay anyway near $25,000. In fact, most homeowners spend between $6,000 and $10,000 on a bathroom remodel, with the average bathroom remodeling cost around $8,800.

But just like a bathroom addition, you can limit your costs by renovating a few bathroom elements at once. Therefore, review all bathroom remodeling projects below:

Showers & Tubs

With most shower or tub remodels, the project revolves around tile and the shower head. As you saw above, new shower head installation costs range between $25 and $250. A surprise to many, there are numerous shower head designs on the market. Some of the more popular designs are:

  • Hand Held Shower Heads
  • Dual Shower Heads
  • Rainfall Showers
  • Multiple Shower Heads

As of 2017, rainfall shower heads are popping up in more and more bathrooms around the country. If you’re selling soon, consider adding a rainfall shower head.

Staying in the shower, bathroom tile is perhaps the most popular bathroom update. Tile, whether on the floor or in the shower, can wear over the years. After all, water, steam, dirt and grout all have an effect on each other. Therefore, in addition to grout cleaning, many homeowners retile their showers. While the project is not difficult to DIY, it does take time. As such, most hire the pros. According to our shower retile cost estimator, it costs $1,250 to retile a 100sf shower.

Adding A Bathroom Cost


Beyond style, most toilet remodels revolve around plumbing and other parts inside the actual toilet. For one, if your toilet doesn’t flush properly, you could call a plumber to improve the plumbing system. Additionally, high-efficiency plumbing doesn’t only improve your day-to-day toilet uses, but also improves the environment. Using less water means less of a strain on the environment and your water bills.

Then again, since toilets are relatively cheap compared to other bathroom elements, you could just replace it all together. Just make sure it matches your bathroom design.

Sinks & Faucets

Bathroom sink remodels usually focus on hardware. Replacing your handles or your faucet is one of the easiest and most affordable ways to upgrade your bathroom. On the other hand, if you want to save space or add more storage, you may want to replace your entire sink. If you have a small bathroom, pedestal sinks take up less space than a traditional bathroom vanity. The cost to install a pedestal sink ranges between $200 and $500.

If space is not an issue, maybe you just need a vessel sink instead of an undermount sink. Vessel sinks, which sit above the counter, are very hot right now. With plumbing in place, their total installation cost ranges between $100 and $500.


Being the dominant feature that it is, your bathroom flooring demands attention. If you’ve grown tired of your dingy flooring, you can install new flooring, based on the prices above. However, if you’re looking for a quick cleaning or repair, please review prices below:

Bathroom Addition Cost


Just like your kitchen counters, your bathroom countertops see a lot of use. From water and hair dryers to makeup and shaving kits, a lot comes in contact with your bathroom counters. While many counters are durable, like quartz or stone, most will need a repair or two in their lifetime. Just like countertop installation costs, bathroom counter repair costs largely depend on the material in play:


Almost all bathroom cabinets are made of wood. As we remodel our bathrooms, our tastes change. As such, many paint their bathroom cabinets. Professionally painting a single bathroom cabinet can cost up to $1,000. While painting any cabinet is tough, bathroom cabinet paint needs to stand up against the heat and moisture of a bathroom. Therefore, precision and paint choice is key.

Besides painting, others choose to refinish or reface bathroom cabinets. Refacing, as the name suggests, replaces the front face of the cabinet and costs are usually a little less than installing cabinets. Refinishing bathroom cabinets essentially cleans all moisture and grime from the faces and substitutes it with a new, shiny surface. The cost to refinish cabinets is approximately $2,400, with most homeowners paying between $1,800 and $2,800.

Find A Bathroom Remodeling Contractor

Remodeling or adding a new bathroom is no easy task. With so many options to choose from, it’s hard deciding what to tackle first. Hopefully, all costs above provide a good starting point for your future bathroom remodeling project.

As always, if you need help along the way, ImproveNet can connect you with up to four bathroom remodeling contractors in your town!

Get free estimates from local bathroom contractors

Last updated on Jun 8, 2018

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