Roof Replacement Cost Calculator
Estimate the cost to replace a roof in Australia. Enter the roof area, choose the new material and pitch, then add extras like new insulation or guttering.
Your roof replacement details
Roof area is usually larger than floor area, add ~20% for pitch and overhang.
Your estimate sits within the typical range.
Your estimate sits within the typical range.
Where the money goes
Estimated breakdown for your configuration
Ways to save
- Colorbond/metal is usually the cheapest to supply and install.
- Only replace guttering at the same time if it’s actually due, otherwise it’s an avoidable add-on.
How we estimate this
Roof replacement in Australia typically costs $60–$120 per square metre in 2026 for the supply and install, so a typical home roof runs $12,000–$30,000. Metal (Colorbond) is usually most cost-effective; terracotta tiles cost the most.
Pricing reviewed: October 2026.
Roof replacement prices by city
Costs vary by city. See the local breakdown for your capital.
Doing more than just roof replacement?
Build a combined estimate across every part of your project in one place.
Pricing reviewed October 2026. Indicative Australian costs, not a quote.
Understanding roof replacement costs in Australia
Roof replacement in Australia typically costs $60–$120 per square metre in 2026 for the supply and install, so a typical home roof runs $12,000–$30,000. Metal (Colorbond) is usually most cost-effective; terracotta tiles cost the most.
Steep or two-storey roofs cost more due to access and safety requirements. Removing an old asbestos roof, replacing guttering and adding insulation all add to the total.
Frequently asked questions
How much does it cost to replace a roof in Australia?
Roof replacement typically costs $60–$120/m² in 2026, about $12,000–$30,000 for a typical home, depending on material and access.
Is metal or tile roofing cheaper?
Colorbond/metal roofing is usually the most cost-effective to supply and install. Terracotta tiles cost the most; concrete tiles sit in between.
Does my roof area equal my floor area?
No, roof area is larger because of pitch and overhang. Add roughly 20% to floor area as a starting estimate.
Are you a roofing business?
Everyone on this page is working out what roof replacement costs because they are ready to hire. Put your business right beneath the calculator, in your state, so you are who they find. From $100/mo.