Submit your details to reveal an estimate of the cost of your home extension. Then one of our friendly team will give you a call to discuss your extension in detail, including design, planning and your budget.

Our house extension cost calculator that calculates per square metre (m2) is an invaluable tool for homeowners planning to expand their living space. This calculator simplifies the budgeting process by providing an estimated cost based on the size of the proposed extension.

Typically, an estimate considers various factors such as location, quality of materials and any additional features like plumbing and electrical work. To use our calculator, begin by imputing the dimensions of the extension to square metres.

Step 1. Visit our House Extension Cost Calculator webpage.

Step 2. Adjust sliders to enter the approximate length & width of your extension.

Step 3. Click ‘Get My Estimate’ button.

Step 4. Enter your name, email address & telephone number.

Step 5. Close pop up to reveal your estimate.

*Please note that this estimate does not include full interior specifications. The final figure may also vary depending on the time of the year and costs of materials.