Building a brick wall sounds like a straightforward job, but it can be deceptively complicated without proper planning. In this guide we look at the average cost to build a brick wall in your garden. We’ll also cover the cost of a brick wall per m2 for a brick and block cavity wall.
Adding a wall to your garden can add charm, privacy and provide effective zoning to make the most of your outdoor space. If you’re considering building a wall, you’ll want to know the cost of a new brick wall so you can plan your budget.
If it’s a cavity wall you’re building, you’ll be creating an important layer of thermal insulation and protection for your home.
If you’re planning to install a retaining wall, check out our retaining wall installation cost guide.
|Wall type||Average cost||Timescale|
|Single skin (1m x 4m)||£825||1-2 days|
|Single skin (1m x 12m)||£1,450||1-3 days|
|Double skin (1m x 4m)||£1,200||2-3 days|
|Double skin (1m x 12m)||£1,850||3 days|
|Brick and block cavity wall||£180 per m2||-|
How much does it cost to build a brick wall?
For a standard garden brick wall the average cost will depend on the length and thickness of the wall itself. To build a single skin 1m x 4m brick wall the cost is around £825. For a single skin 1m x 12m brick wall you’ll be looking at a cost of about £1,450 to build the new wall.
If you’re planning to build a double skin wall then the prices are higher. On average, a double skin 1m x 4m brick wall costs about £1,200. Building a new double skin 1m x 12m brick wall will cost around £1,850.
Factors affecting the cost of brick wall construction
When planning a new brick wall it’s important to understand the factors that will affect the total cost. The main influencing factors include:
- Height and length of the wall
- Type of bricks
- Quality of materials
- Shape of the wall (curves and corners can add cost)
- Any prep work, such as additional excavating or levelling ground
- Where you live
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Each brick wall project is different, so you should confirm the details of what’s included in the price of the project when you speak to local tradespeople. That said, as a general rule the following elements are usually included in the cost:
- Supply of all materials (bricks, sand, cement, etc)
- Removing existing fence panels and posts
- Preparing the ground and digging all footings (the wall foundations)
- Filling footings with concrete
- Laying bricks
- Removal and disposal of all waste material
As with any home improvement project, it’s important to discuss the details of the project with local professionals before starting any work together. Make sure they provide a detailed quote with a breakdown of all the costs so that you know what you’re paying for.
Cost to build a brick and block cavity wall
A cavity wall is basically two separate walls with a gap (or ‘cavity’) in between. The outer wall is usually built with brick and the inner wall is often made of breeze blocks. Cavity walls provide increased thermal insulation and the outer wall stops moisture penetrating through. Here’s more about cavity insulation costs.
The average cost for building a brick and block cavity wall is around £180 per m2. That includes all materials, labour and internal plastering and skirting finishes.
The exact price of constructing a brick and block cavity wall can vary, so it’s important to discuss the details of your project with a local construction expert to get an accurate quote.
Single vs double skin brick walls
One of the decisions you need to make that will affect the cost of building a new brick wall is the thickness. Single skin brick walls are a single brick thick. Double skin walls, as you may have guessed, are twice as thick as they use two layers of brick.
The construction of a single skin brick wall will cost less, but structurally it will be weaker. To add stability to the new brick wall, piers (brick columns) should be built into the structure. Single skin walls are suitable for walls 500mm in height or lower.
If you’re building a wall that’s going to have a height above 500mm you’ll need to build a double skin brick wall – with piers to provide added strength.
For walls over 1200mm you’ll need to get a structural engineer to design the wall to ensure it meets safety standards. Due to the height of the wall they’ll need to take into consideration the location of the wall, potential usage and the wind conditions.
Useful brick wall checklist
- Decide where you want the new brick wall built and whether it needs to be single or double skin – single skin is only suitable for walls up to 500mm in height.
- For walls about 1200mm in height, you’ll need a structural engineer to design or approve the wall plans before starting any building work.
- If the ground is very uneven, make sure you discuss the cost of levelling the ground so it’s included as part of any quotes you get.
- Speak to local brick wall experts for professional advice and accurate costs.
- Always shop around for fair and competitive prices for your brick wall.
- When hiring a tradesperson, choose a professional with experience in building brick walls and with relevant qualifications or accreditations (such as being a member of the FMB – Federation of Master Builders).
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