Cost to Build a Garage

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How Much to Build a Garage?

On average, you can expect to pay between £4,500 and £30,000 (including labour and materials) to build a new garage. The exact price will mainly depend on the size of the garage, construction type, roof design and specification. Premium finishes, insulated walls and higher-quality garage doors can all increase the overall cost.

For new builds, detached garages are often simpler to construct because they do not need to connect directly to the existing property. A new attached garage can cost more, as it must tie into the house structure and may involve additional design or building regulation requirements.

A basic single detached garage typically costs between £10,000 and £18,000, while a newly built attached garage usually ranges from £15,000 to £25,000 depending on materials and complexity.

If you are enlarging an existing garage rather than building from scratch, the pricing will differ. For example, the cost to extend over a garage is usually higher because extra structural support is often needed when building a garage extension.

Likewise, the cost to convert a garage depends on the existing structure, insulation requirements and intended use of your garage conversion.

Since costs vary significantly, the easiest way to price your project is to post your job and get free quotes from local builders. Comparing multiple quotes helps you find the right builder at the right price.

Price to Build a Garage by Type

Here we look at the different types of garages you can build and their estimated costs:

Concrete Prefab Garage Costs

A prefabricated garage (known as a prefab), is a factory-made kit garage. These are different to self build garage kits as they are already assembled for you.

A prefab is the cheapest and easiest method of installing a garage onto your property.

Starting prices for the kits are around £1,200 and go up as far as £5,000. For a simple single concrete prefab garage for the kit alone, it costs around £1,200, and a double concrete garage will start at around £3,000.

Metal Prefab Garage Costs

Although hardwearing metal garages can last over 20 years, especially if they're well looked after, generally speaking they're of lower quality than more expensive alternatives.

Prices for a single metal prefab garage can start from as little as £250 for an unknown brand, reaching up to around £2,500 for a double width and higher quality option.

Wooden Garage Costs

A wooden prefab garage kit is the second most financially accessible option for prefab kits on the market.

Starting at around £150 and ranging up to £2,000, it is by far the cheapest option to those looking for a quick, easy build garage.

Brick Garage Costs

A brick garage is a longer-lasting, higher-quality garage.

The typical starting costs of a UK-sized garage, built from brick, with a flat roof will start at around £4,500. This is by far the most common form of garage chosen. If built well, they can last generations and only require periodic maintenance such as replacing the felt every 10 to 20 years to help avoid leaks from rainwater etc.

The length of time needed to build a garage will depend on factors such as the size of build and how many tradesmen involved, with labour fees varying by region. On the assumption there aren't any unforeseen issues, such as delays due to weather conditions or material supplies, a single garage can be completed within a 2 week window, whereas a high-quality double can take a month to finish.

Supply Costs to Build a Garage

Supply costs for a new garage depend mainly on the construction type, roof finish, foundations and garage door chosen. Prefabricated kits are usually the cheapest option, while brick-built garages require more materials and therefore a higher budget.

The table below shows the main materials and typical supply-only price ranges for a standard single garage build.

Prefab Kits vs Traditional Building Materials

Prefab garage kits are usually supplied as complete packages, including wall panels, roof sections and fixings. Metal kits start from around £250, while concrete prefab kits usually begin at around £1,000.

Blocks are often the cheapest material for garage walls if not using a prefab kit, while facing brick costs more, but offers a more traditional finish. Material costs for wall construction usually range from £1,000 to £3,500 depending on size and finish.

If you're using breeze blocks, additional waterproofing or cladding may be required which can add to the overall cost.

Garage Roof Materials

Garage roof costs can vary significantly depending on the roof type, size and materials chosen.

Flat roof kits using timber, felt and membrane usually start at around £250, while pitched tiled roofs cost more due to timber structure and tile quantities.

A flat roof is also quicker to install, often taking 1–2 days once the structure is in place, while a pitched tiled roof may take 3–5 days depending on size and finish.

Corrugated plastic or metal sheets are often the cheapest roofing option for simple garages, while tiled roofs give a more durable finish but increase material costs considerably.

Garage Foundations

Most garages need a concrete slab foundation before construction starts. For a standard single garage, material costs for the slab are usually around £125 to £300, depending on slab thickness and ground preparation.

Garage Door Costs

Garage doors vary widely in price depending on style and security level.

The main types include:

• Up-and-over doors: £150 to £1,000
• Roller garage doors: £500 to £5,000
• Sectional garage doors: from £1,000

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Additional Garage Construction Costs

Materials and labour are not the only costs involved when building a garage. Building any structure will have additional expenses.

What are the additional costs when building a garage?

If you require your garage to have electricity, you'll have to employ an electrician to fit the supply; this will cost around £150 per day.

Here are some security measures you can add to your garage:

• Security system — Installing a home security system costs £500.
• Outdoor lighting — Improving your home's outdoor lighting costs £200.
• CCTV — To boost your home's security, installing CCTV costs £350.

After the garage is built, you may want these additional jobs done, too:

• Adding new or replacing old guttering — To repair or replace your guttering costs £215.
• Adding a concrete driveway — To freshen up your home's exterior, adding a new concrete driveway costs £3,500.

Labour Costs & Timescales for Building a Garage

Garage-building specialists may be able to oversee the entire project, but many homeowners will need to hire various tradespeople for different aspects of the construction. Each tradesperson will be involved for a different length of time, and day rates will vary by trade.

Below is an overview of the typical labour costs and timescales for different types of garage construction, but the typical prefab garage build duration is less than that of a brick garage in general:

Which Trades Do You Need for a Garage Project?

The style of your new garage space influences the tradespeople you'll need and therefore how much your garage build costs.

• General builder: Usually oversees the project and may complete much of the construction work. Expect to pay around £100 to £150 per day.
• Concrete installer: Needed for the garage base or slab foundation, usually for 1–2 days on a standard single garage. Day rates are typically £75 to £125 per day.
• Bricklayer: Required for brick-built garages, with labour usually costing £75 to £150 per day depending on experience.
• Electrician: If you want lighting, sockets, an electric garage door or alarms, an electrician is usually needed near the end of the build at around £125 to £200 per day.
• Architect or designer: For a bespoke garage design, drawings may be needed before work starts. Plans usually cost £400 to £1,000 depending on complexity.
• Tarmac specialist: If you'd like a tarmac driveway installed in front of your new garage, a tarmac specialist will usually cost around £125 per day, depending on the level of experience and qualifications they possess.

How Long Does It Take to Build a Garage?

A double garage will take longer than a single garage, at around 1 week for a single compared to 2 weeks+ for the double. Prefab garages can usually be constructed in a matter of days.

The timescale will also depend on the level of complexity in the plan, the tradespeople's skills, and the number of workers needed for the project.

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Factors That Impact Garage Build Costs

The cost of labour takes the largest chunk out of your building budget, followed by materials, doors, windows, and internal decorations. Consider which design elements you want and how they will impact the final cost:

• Materials: A metal prefab garage is much cheaper than a brick garage. A concrete prefab lies somewhere in between.
• Size: Double garages naturally cost more than single garages, but may add more value to your home.
• Type of roof: A flat roof costs less than a pitched roof, but might not last as long and doesn’t offer as much space inside the garage for storage.
• Door style: Up and over doors are the cheapest, whereas a roller door or sectional door will cost more to install but many find they look better and can be more secure.

Aside from the design of the garage itself, other factors that influence the price include:

• Location in the UK: Labour rates vary by region and are usually higher in London and the South East than in the North or Scotland.
• Ground conditions: Poor soil quality, uneven land, or the need for deeper foundations will increase groundwork costs. If excavation reveals drainage issues or unstable ground, additional reinforcement may be required, driving up costs. Foundations and site preparations can consume around 10-15% of the project’s budget. For a single garage, costs can reach £2,000 to £3,000 if conditions are very poor.
• Existing structures: Removing an old garage, shed, or existing foundations will add demolition and waste disposal costs before construction can begin.
• Access to the property: Limited access for machinery or materials may increase labour time and delivery charges.
• Addition of utilities: If the garage will be used as a living space, you will probably want to add electricity, lighting, plumbing, and/or heating. Each of these will increase time and costs and may require additional compliance work. Electrical installations and drainage can add £3,500 to the cost of building a single garage if the work required is extensive.
• Finishing level: Similarly, a garage being used for more than just storage will likely require insulation, plastering, and upgraded doors and windows.
• Planning permission and building regulations: While many garages fall under permitted development, some projects require formal planning approval and building control fees.

What's Involved in Building a New Garage?

In most cases, building a new garage isn't suitable for a DIY project unless you're an experienced builder. It's physically demanding and far more complex than many people realise!

As part of the initial stages, it's recommended that you obtain at least three quotes from different tradespeople, as this will help you decide who's best for the job to ensure value for money. At MyJobQuote, you can find garage and outbuilding specialists near you for further information (and no further commitment).

Below we've outlined the main steps involved in the construction of a new garage in the UK.

Before the Job Starts

• Budgeting and Planning — Carefully decide on your budget, including cost of materials, labour, and additional expenses. Decide where you are positioning the garage and the design you have in mind. Unless you're using a prefab kit, hire a specialist to draw up detailed plans in advance.

During the Job

• Laying the Foundation — Clear the site area, dig your foundation and lay down a concrete base. Drying times depend on weather conditions and the strength of cement being used.
• Construction — How to go about building the garage will depend on whether it's a prefab kit or a brick-built garage, the latter involving laying brickwork, roof supports, and internal support.
• Roof Installation — This depends on style. A flat roof is often quicker to install, whereas tiled roofs require additional supports.
• Fixtures and Fittings — This includes everything from the lighting and electricity, to flooring, internal doors and fitting storage space. Some tasks may need professionals, such as electricians.

After the Job

• Security — You may also wish to call upon a security firm to assess your need for additional lighting and motion sensors, secure lock fittings, or to install CCTV.
• Enjoying Your Garage — Whether it's to keep your transport safe, add extra storage space, or spend some quality time relaxing or doing the things you love, it's time to make the most of your new space.

Building Regulations & Planning Permission for Building a Garage

Before starting any structural work such as adding a garage extension, or building a new garage,you need to consider building regulations and any rules governing outbuildings, which include sheds and garages.

Most outbuildings are considered to be permitted development, so they do not need planning permission, but this is subject to a number of limits and conditions:

• The garage should not be built on land forward of a wall forming the principal elevation of the dwelling house.
• The garage also has to be single-storey with maximum eaves height of 2.5m and maximum overall height of 4m for a pitched roof, 3m for other roofs, or 2.5m if within 2m of the property boundary.
• In addition, if you want to avoid planning applications, you need to avoid any verandas, balconies or raised platforms.

As a general rule, you won’t need planning permission providing the garage is no more than four metres in height. The garage also needs to take up less than half of the land around your existing property. However, there are exceptions, such as if your property is a listed building or within a conservation area.

If you are unsure, always check with your local planning department first.

If needed, a Planning Permission application costs around £250 in England. You will usually pay between £200 and £500 for Building Regulations approval and inspection for your new garage project.

Checklist: Hiring Garage Builders

Before opting for a builder to work on your garage, you should consider some factors that may affect not only the cost, but give you confidence that you've chosen the right contractor for the job.

Below is a checklist to help you when searching for your tradesmen:

• Do they have the relevant qualifications? Depending on the tradesman hired, these can be in the form of CSCS certification, City and Guild levels, or even college-gained qualifications such as HNCs.
• Are they covered by public liability insurance? One of the most important considerations when hiring any builder is their insurance. While public liability insurance isn't a legal requirement, any reputable tradesmen will have themselves insured accordingly, as it covers in the event of accidental damage or personal injury.
• Does the tradesman offer a guarantee? This would be a guarantee on the quality and longevity for the work they are going to undertake, which will add peace of mind and to ensure you're happy with the job before they finish.
• Can they approve building control sign-off? Many builders are able to self-certify their work, check this is the case for your chosen tradesmen and ask they liaise with your local authority for a Building Regulations Compliance Certificate.
• Have you asked for evidence of previous work? If they have references from previous clients, photos, or a portfolio of their work on sites such as MyJobQuote, it will prove they are proud of the level of skill they can provide.
• Do they have positive reviews? In addition to their portfolio, by checking on MyJobQuote choose a company with positive reviews and read what previous clients have to say. Alternatively, ask friends and family for recommendations.