Cost to Build a Garage

How Much Does It Cost to Build a Garage In 2025?

What will the prices of building a new garage depend on?

The average cost to build a new garage will mostly depend on the type of garage you need.

For instance, an 18 square metre single attached garage normally ranges from £3,600 to £7,400, while the same size for a detached garage is approximately £3,400 to £6,800.

What if you need more space?

If you have more than one car, you may prefer a double garage, which costs around £6,000 to £12,800 for a 36 square metre attached garage build. For a detached version, you should expect to pay anywhere from £6,300 to £13,600.

It's important to put some careful thought into how you ideally want your garage to look, when budgeting for your new garage and how much time you want to be spent on it.

Another option is a 54 square metre triple garage which starts from £8,700 to £19,000 for an attached build, while a detached garage with the same dimensions normally ranges from £14,100 to £20,200.

What else can affect the costs of your garage?

Various other cost factors affect the overall price, such as the materials used, the type of roof you want, how long it takes to build, the number of tradespeople required, and ease of access.

Where you live is also an important factor, as contractor rates vary across the UK.

Garage Prices in 2025

For a better understanding of garage build prices, take a look at the below table:

What are the Supply Costs of a New Garage Build?

If you plan to build the garage yourself, you can save a significant amount on tradesmen costs. However, you will still need to consider the supply cost of a new garage build.

Garage Type

The cost of building a garage is heavily influenced not only by whether it's detached or attached but also by the materials used in construction. Common materials like wood, brick, and concrete each come with their own price points, durability, and aesthetic appeal. The below table breaks down supply costs based on both garage type and primary construction material.

Garage Roof Type

The roof style you choose influences both structural requirements and the aesthetic look of your garage. Whilst flat roof tend to be cheaper pitched roofs offer better long term value.

Garage Door Type

Choosing the right garage door is a key part of designing a functional and visually appealing garage. Different door types offer unique advantages in terms of space-saving, ease of use, security, and aesthetics.

What are the Additional Costs of a New Garage Build?

There are several other tasks you may want to complete at the same time as the garage build, such as:

New Boiler

If you are using your garage as a functional space, then it is important that you have adequate heating and hot water access.

With an attached garage, it may be possible to connect your existing boiler or even move your boiler into the garage to free up space within your home. However, if you are building a detached garage will require an entirely separate boiler system.

The cost of a typical garage boiler installation is typically around £2000 for a conventional boiler, £2400 for a combi boiler and up to £6000 for a biomass boiler.

Radiator Installation

Along with your new boiler, you may also want to improve your garage's heating by installing radiators. The average price of installing radiators is about £260 to £440 for a professional fitting.

Painting and Decorating

Even if you just want to use your garage to park your car or store items, you should still make your garage look aesthetically pleasing.

Therefore, you should consider painting which will cost anywhere from £17 to £30 per hour to hire a professional painter and decorator.

It is also important to consider the various cost factors that will affect the overall price, including:

Type and Size of Garage

The garage type is one of the main elements to consider when calculating the cost of building a new garage. If you only have one car, then a single garage may be the best option, and of course, will be much cheaper than a triple garage.

You also need to decide if you want an attached or detached garage. While the latter is more expensive, it will give you more freedom regarding space and planning permission as outbuildings are usually classed as permitted developments.

However, an attached garage typically requires significant changes to the existing property, which may require building regulations approval or planning permission.

Materials Used

When building a garage, you need to consider the materials you are going to use. For instance, if you plan to create space for a home gym, then the best materials to use are brick and concrete, as these will provide better insulation.

They are more expensive than wood, so if you have a low budget, this may be the better option.

Garage Roof Type

Another important element is the type of garage roof you want. The most common option is a flat roof, which is both practical and cheap.

However, for a long-lasting garage, building a pitched roof may be the better choice, despite being more expensive.

Type of Garage Doors

Garage doors can significantly impact the overall cost of your build, as there is a wide variety of styles and price points available. For instance choosing an electric garage door over a manually operated one adds convenience and offers additional benefits such as enhanced security and ease of access.

If you're working with a tighter budget, up and over garage doors are among the most affordable options. In contrast, roller garage doors tend to be more expensive due to their compact design and advanced mechanisms.

Contractor Fees

The cost of hiring a professional to build your garage will vary depending on the individual or company's fees. For instance, some may charge a minimum fee or add on mileage costs if you live in a remote area.

Builder's rates will also vary depending on where you are in the UK, as residents in London could expect fees up to £230 per day, while tradespeople in the North West only charge around £190 for a full day's work.

Tradesmen Costs for Building a Garage

As mentioned above, tradesmen costs can vary depending on your locations, with hourly rates ranging from £25 in Bradford to £45 in London.

The labour costs will also vary depending on the size and type of garage, as this will determine the number of builders needed for the job.

For a job such as this, each builder will expect to be paid around £100 to £200 per day, which will increase the overall garage build cost if multiple people are working.

How Long Does It Take to Build a Garage?

The size will mostly determine the time spent building a garage.

Average Time Based On Garage Size

• A single detached garage - 1 week
• A double garage - 2 weeks
• A triple garage - 20 days

The materials used will also impact the timeframe of the job, as a single wood or concrete garage should only take around a week compared to a brick garage that generally takes up to ten days to finish.

If you are having a flat roof fitted this should shorten the time span, as it normally only takes two to three days to erect a roof. In contrast, a pitched roof could take a week or more to install.

Types of Garage

As discussed, there are a wide range of garages to choose from. To help you choose which option is right for you, take a look at the following types which will lay out the costs and pros and cons of each garage option.

Attached Garage Cost

An attached model is a type of garage which is joined to the main property and shares at least one wall. This design allows for direct indoor access, making it a convenient option for homeowners, especially in cold or rainy weather. Attached garages are commonly used not only for vehicle storage but also for keeping household items, tools, gym equipment, and seasonal belongings safe and accessible.

The average supply cost of an attached garage is around £70 to £90 per square metre.

Pros:

• Cheaper than a detached garage
• Convenient access
• Easier and less costly to install heating, electricity, or plumbing

Cons:

• Increased safety risk
• Mismatched design compared to your main property
• May limit design flexibility or reduce natural light in adjacent rooms

Detached Garage Cost

A detached garage is a completely separate building from the main home. As a freestanding building, it offers greater flexibility in terms of location, size, and use. Detached garages can serve as more than just car storage. They are ideal for home gyms, workshops, studios, garden offices, or even additional living space if designed accordingly.

The average supply cost for a detached garage is around £80 to £100 per square metre. This is typically higher than an attached garage due to the need for separate foundations, walls, roofing, and potential utility connections.

Pros:

• Provides more space
• Safer option as there is no access to the main property
• Ideal for noisy or messy activities like workshops or gyms

Cons:

• Access is less convenient
• Takes up exterior space
• Typically more expensive due to separate structure and services

Single Garage Cost

A single garage is a compact and practical option for homeowners with limited space or budget. Ideal for properties with smaller plots, single garages can still be tailored to suit your needs. Whether you want to store a single vehicle, use it as a small workshop, or create extra storage space.

They come in a variety of options and are cheaper to build than a double garage. You can expect to pay around £10,000-£15,000 on average for a standard build.

Pros:

• Needs less space to build than a double garage
• Less expensive than a double garage
• Quicker to construct, often completed in about a week

Cons:

• Not as much room as a double garage
• May not accommodate larger vehicles or multiple uses

Double Garage Cost

If you have ample space on your property and own multiple vehicles, a double garage is a practical and valuable addition. It not only provides room for two cars but also offers extra space for storage, a small workshop, or even a home gym setup. Double garages are ideal for families or households with multiple drivers.

While more expensive than a single garage, a double garage offers greater versatility. The average cost to build one ranges between £20,000–£25,000, depending on size, materials, and features such as insulation, lighting, and electric doors.

Pros:

• Provides a lot of space and storage
• Can be used for multiple cars
• Flexible layout can be customised for multi-purpose use

Cons:

• Takes up a lot of area space on the property
• More expensive

Garage Materials

It is also important to consider the different garage materials you can use, such as:

Brick Garage Cost

Brick is a common material used in garage construction, and the building process is very similar to that of a house.

The typical cost of a brick garage is£80 to £130 per square metre.

Pros:

• Simple construction
• Strong and well-insulated

Cons:

• Harder to repair or replace
• Difficult to modify

Concrete Garage Cost

Concrete garages are made up of cement, aggregate and water, which creates a robust outbuilding structure.

You should expect to pay around £70 to £140 per square metre for a new concrete garage.

Pros:

• Maintains consistent temperatures
• Extremely energy-efficient

Cons:

• High maintenance
• Susceptible to cracking

Wood Garage Cost

Wood is one of the most affordable garage materials. Wooden garages are made entirely out of timber which provides a durable and weather-resistant solution.

The average cost of a wood garages ranges from £10 to £40 per square metre.

Pros:

• Treated timber provides a robust structure
• Highly weather-resistant

Cons:

• Requires regular maintenance
• Prone to damp and rot

How Much Does It Cost to Demolish a Garage?

If you wish to get rid of your garage to make more space outside in your garden or driveway, you will need to consider the demolition cost. You could opt to knock down your garage yourself; however, you should only do this if you're an experienced DIY enthusiast.

This is especially important with attached garages, as you could cause damage to your home in the process.

Your best bet is to hire builders who will charge around £25 to £45 per hour to remove your garage.

You can then hire a skip to get rid of the garage waste, which will cost anywhere from £60 for 2 to 3-yard skip up to £800 for a 40-yard roll-on roll-off skip.

FAQs

Q: How do you insulate a garage?

A: One of the most important things you need to consider is insulation when building a garage, especially with an attached garage as this adjoins your property.

There are various ways to insulate a garage, the first being cavity wall insulation which can be installed as a double skin brick wall during the construction process. You can also add this later on through the blown-in insulation procedure.

Another option is breeze block garage insulation which involves fitting a timber frame inside the garage walls and filling the space with insulation slabs.

You may want to opt for external garage insulation for a detached garage, which is typically fitted to the outside breeze blocks and simply needs to be rendered with a waterproof finish.

Q: How much does it cost to convert a garage?

A: The average cost of a garage conversion is around £13,500 for a single attached garage a while a single detached garage conversion could cost up to £28,800.

Double garage conversions can range from £27,000 for an attached garage up to £57,600 for a detached garage.

Q: Which paint is best for a garage door?

A: The type of paint you choose for your garage door will vary depending on what the door is made of.

For instance, you should use solvent-based paints for a uPVC and aluminium garage doors. While timber garage doors are better off with wood paint, varnish or stain.

Q: What is the best way to secure a garage door?

A: There are various ways to secure a garage door, such as installing a garage door timer which can be set to automatically close after the door is open for a certain time.

You can also fit a lock to keep the contents of your garage secure.

Q: Which garage roof is the best?

A: Both flat and pitched roofs are ideal for garages. However, the material is also something you need to consider.

The most common roof material is corrugated sheets available in metal, plastic, bitumen and more, with metal being the most durable option.

Author: Heather B

I am a seasoned copywriter from Liverpool - who after graduating with a BA (Hons) degree in English Media and Cultural Studies - went on to specialise in the creation of business and lifestyle copy for a wide range of industries across the UK and USA.