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How much does a new bathroom in the UK cost?

Renovating or installing a new bathroom can transform your home, adding value and enhancing your daily life. However, the cost of a new bathroom can vary widely depending on several factors. In this post we’ll look at these factors and give you guide prices of what a bathroom project costs to help you budget effectively and make informed decisions about your renovation project.

luxury white bathroom with minimal design

What influences bathroom renovation costs

1. Bathroom size

It’s obvious but the size of the bathroom significantly impacts the overall cost. This is because larger bathrooms require more materials and labour, which increases expenses. A small cloakroom will cost less compared to a full master bathroom.

2. Scope of renovation

The extent of the renovation - whether it’s a simple update or a complete overhaul - affects the cost. Simple upgrades like new fixtures, paint, and flooring are less expensive than structural changes, plumbing updates, or full redesigns.

custom built in bathroom units construction

3. Quality of materials

High-end materials such as marble, custom cabinetry, and designer fixtures will significantly increase the budget. Conversely, opting for more affordable materials can help keep costs down.

4. Labour costs

Labour costs vary depending on location, the complexity of the job, and the professionals hired. Skilled labour, such as plumbing and electrical work, tends to be more expensive.

Project managing the renovation yourself can reduce cost but at the expense of lengthy delays. It can also lead to spiralling cost when the crossover of tasks between trades has not been clearly communicated.

5. Bathroom fixtures and features

The choice of fixtures and features, including bathtubs, showers, sinks, toilets, and lighting, can vary widely in price. High-tech features like heated floors, steam rooms, and smart toilets will add to the overall cost.

Steam room shower
Insignia steam shower

Average costs of a new bathroom

1. Basic bathroom renovation

A basic renovation typically includes updating fixtures, installing new flooring, painting, and possibly replacing the vanity. Costs for a basic renovation range from £5,000 to £10,000. This is suitable for cloakrooms or small bathrooms where extensive changes are not required. 

2. Mid-range bathroom renovation

A mid-range renovation might involve replacing all fixtures, adding new tiles, updating plumbing and electrical work, and installing a new vanity and countertops. The cost for a mid-range renovation typically ranges from £10,000 to £17,000. This is ideal for a standard-size bathroom that needs a comprehensive update.

3. High-end bathroom renovation

A high-end renovation involves luxury materials, custom cabinetry, high-tech features, and possibly structural changes. This can include a complete redesign with high-quality fixtures, underfloor heating, and premium tiles. Costs for a high-end renovation can range from £17,000 to £30,000 or more. This is perfect for master bathrooms where luxury and customisation are the priorities.

Construction of custom built bathroom cabinets

4. Home spa renovation

A home spa renovation like a high end renovation involves luxury materials, custom cabinetry, high-tech features, and possibly structural changes. However this time it will also include elements such as space for an internal garden and could also incorporate other features such as a steam room and sauna. Costs for a high-end renovation can start from £30,000 to as much as £100,000. depending on the size and the level of detail and craftsmanship required. 

luxury home spa

Additional costs to consider

1. Surveys and inspections

Depending on the extent of the renovation, you may need a Survey, which can add to the overall cost. It’s essential to factor in these expenses to ensure your renovation complies with local and national building regulations.

2. Unexpected issues

During the renovation, unexpected issues like plumbing problems, mould, or structural damage may arise, leading to additional costs.

It’s wise to budget an extra 10% to cover unforeseen expenses. However if you are dealing with a reputable company with many years of trading, these issues will normally have already been identified due to their experience.

3. Design and planning

Hiring a professional designer to help plan and visualise the renovation can add to the overall cost but can also ensure a cohesive and functional design as well as ensuring the installation goes according to plan.

Designs are usually free however fees can range from a few hundred pounds for photo-realistic 3d renders to several thousand pounds, depending on the complexity of the project. 


The cost of a new bathroom can vary significantly based on size, scope, materials, labour, and features.

On average, a bathroom renovation can cost anywhere from £5,000 for a basic update to £30,000 or more for a high-end remodel. By understanding these factors and planning accordingly, you can create a budget that meets your needs and transforms your bathroom into a beautiful and functional space.



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