Home, Plumbing

How to install a bathroom: the steps and cost

install a bathroom

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Are you wanting to install a bathroom and don’t know how to go about it? Then you’re in luck. Here’s a guide to fitting out your bathroom that you’ll find helpful.

Planning how to install a bathroom

In this guide, we will talk about DIY bathroom installation and bathroom refurbishment. So if you’re planning to install a bathroom yourself, this will help you tackle the job. We know this project might feel like a daunting task for you, so we have provided you with the vital information you will need to install a bathroom without making any mistakes. 

Things to consider before you install a bathroom

  • Skill level
  • Cost

Skill level needed to install a bathroom

This is the most important thing to consider as it affects how much you spend and the time it will take to complete the project. Before you start, it is crucial to have extensive knowledge of how to fit a bathroom. This will give you a clue of the skill set you need to carry out the project properly. 

Cost to install a bathroom

When drawing up a budget for this project, it is essential to consider the following 

  • What is being fitted?
  • Space and layout of new bathroom 

The more fittings you add to your bathroom, the more expensive the project will cost. You must also consider the quality of the fittings.

Also, when doing a bathroom refurbishment, you must consider if you will use the layout of the old bathroom for the new one. You would need to spend more on a new layout as there would be a need to make significant changes like installing a new plumbing system. 

Steps to install a bathroom 

Come up with a design

The first step to installing a new bathroom or refurbishing a bathroom is to create a design—check out these bathroom design inspirations to get your creative juices flowing. 

Consider the following when establishing a design

  • Color scheme
  • Fixtures
  • Storage space 
  • Location of utilities 

Having an idea of all of these will help you easily plan your bathroom layout, budget for the project, electrical wiring, and plumbing. 

If you are worried about the size of your bathroom: you think it is too small, these bathroom design ideas will help you save space. 

Gather the necessary tools

After you’re sure of your design, it is time to get all the necessary tools you need to carry out the project. These include safety equipment, power drills, screwdrivers, hacksaws, measuring tapes etc. 

Prep your bathroom space

It is vital to prep the space to accommodate the bathroom needs. Therefore, remove all plaster and drywall from the area where you will run your plumbing. 

Install the main drain

Next, run the main drain line, individual drain lines and install vents. This is relatively easy to do, but you get an extra advantage if you have experience fitting drains and installing vents. 

Install supply lines

After you’re done with the drain lines and vents, it’s time to run supply lines. Every country has different codes for preferred materials. So, be sure to confirm before you start. 

Install basins and other fixtures

It is now time to install the shower basin and all the necessary fixtures, e.g. pedestal sinks, tub faucets, shower enclosures etc. 

Install floor tiles and wall panels

Next, lay down your new floor tiles, then hang new drywall and paint it. At this point, your bathroom is starting to take shape.

Install cabinets and other vanities

Lastly, install your new vanity and cabinets. It is essential to leave the installation for this and the toilet seat to not scratch them during construction. 

Summary: install a bathroom

No one knows your home better than you do, and with the right skills, you can bring your dream bathroom to life yourself. Aside from the joy that comes from installing your bathroom yourself, you can save money you would have had to spend hiring contractors.

While it might be an exciting project, it is not without its risks. For this reason that it’s crucial only to take on bits you are comfortable with and get help when you are in unfamiliar territory. 


How long does it take to install a bathroom?

On average, it takes about three weeks to completely install a new bathroom, assuming you work on weekends. The size of the bathroom and the fixtures also determine how much time it will take. 

What’s the actual cost of installing a new bathroom

Installing a new bathroom can cost anywhere from $4,000 to $12,000 (£3,700- £9,700). It may cost less if you do it yourself. The size of the bathroom also determines how much you spend.  

Do I need a permit to add a bathroom?

Yes, you would need a permit to add a bathroom to your home as your construction must comply with the health and safety guidelines laid down by the regulatory body in your area. Construction companies in your area would be familiar with these rules, but if you are installing the bathroom yourself, you need to familiarize yourself with these laws. 

Can you install a bathroom yourself?

Yes, but how much of the remodel you would be doing yourself depends on the size of your bathroom and the complexity of your remodel. If you would be doing minor remodels, you can take on the installation yourself. However, you should consider hiring a contractor to handle the installation for more challenging tasks, especially if you have little to no experience working on construction/home renovation projects. 

Do you tile before or after fitting a bathroom?

While there is no wrong way to tile your bathroom, that is doing it before or after would still come out great. Experts advise that it is easier and might yield slightly better results if you tile your bathroom before fitting appliances and bathroom fixtures. However, the downside to fitting your bathroom this way is that the tiles could be broken or chipped when installing the fittings, but when done correctly, your fixtures sit perfectly on the tiles and are not just cut around.