Construction costs are rising fast across Australia, including material costs, diesel prices, finance costs and labour. Contractors and subcontractors on fixed-price contracts are absorbing cost increases that those contracts will not let them recover. Blaze Business & Legal has set out the specific steps construction businesses need to take to protect projects, margin and the wider business from these cost pressures.
The Construction Cost Crisis in Australia involves sharp price spikes and a significant rise in construction costs across multiple input categories at the same time. The increase in prices over the past 12 months has accelerated and continues to deteriorate. The Middle East War and the spike in oil prices, together with fertilizer and diesel shortages, plus product shortages caused by these events, are predicted to have global impacts for many months to come.
The Construction Cost Crisis is hitting contractors, subcontractors and building companies across Brisbane, Queensland and Australia. Construction businesses on fixed-price contracts are particularly exposed.
Rise in building construction input prices from September 2020 to June 2024.
Combined margin compression on projects priced before cost escalation.
Internal project modelling, Blaze Business & Legal
Share of all Australian corporate insolvencies that are construction businesses.
The Iran War in 2026 disrupted crude oil supply through the Strait of Hormuz. Diesel prices and fuel levies spiked across Australia. Supply chain disruptions pushed up the cost of construction materials, plant, transport and freight.
Construction businesses across Queensland, New South Wales and Western Australia are competing for the same shrinking pool of workers. Labour costs and wages have risen sharply.
The Reserve Bank of Australia’s sustained rate cycle has significantly increased borrowing costs across the construction industry. The Superannuation Guarantee reached 12% on 1 July 2025.
The National Housing Accord target of 1.2 million homes is under pressure. Industry bodies have flagged falling approvals and slowing construction activity across the country.
Shannon Drew has modelled how six simultaneous cost inputs cascade through project margin, overhead recovery, WIP reporting and cash flow on live construction projects. Read this analysis before making any decisions about your projects and business during the Construction Cost Crisis.
Shannon’s analysis covers the six simultaneous cost inputs hitting construction businesses right now, including fuel costs, building materials, labour costs, finance costs, subcontracting price increases and the wage price index. He works through what the construction cost breakdown actually looks like on live projects in Queensland and across Australia.
Most contractors feel the margin squeeze before they can see it in their reports. I work through a real construction project with all six cost inputs and show exactly how the numbers move through your P&L, overhead recovery and business cash flow. The combined effect is consistently two to three times larger than what most businesses calculate when they look at diesel costs alone.
Read Shannon’s financial analysis →Blaze Business & Legal built this 8-Step Action Plan because construction businesses kept coming to us with the same problem and no clear path through it. Each step builds on the one before. Work through the plan yourself or read the full plan first.
Most contractors calculate diesel and stop. The full picture covers six cost categories and the combined number is consistently two to three times higher. You need a project-by-project total before any other decision is possible.
Read the full contract, including all schedules and Special Conditions, to find any rise and fall clause, price adjustment mechanism, or variation entitlement that applies to your cost increases.
Assess your realistic options, from a contractual rise and fall entitlement through to a commercial negotiation, and make a clear decision about which path to take before approaching your Principal.
Most contracts impose strict timeframes for cost escalation notices. Missing the window can extinguish your entitlement entirely. This step needs to happen urgently, even while other steps are still in progress.
Build a documented package with the entitlement, the calculation, and the supporting evidence. A Principal who receives a structured claim can take it to their board. An unsupported request gets rejected.
Frame the conversation as a project delivery risk issue, not a Contractor grievance. Come prepared with a specific dollar figure, a one-page cost summary, and a clear proposal.
A verbal agreement is not a variation to the contract. Any cost recovery agreement must be executed as a deed of amendment before the Project moves forward.
Address pricing, QBCC Minimum Financial Requirements compliance, business structure, and forward tender exposure. These decisions determine whether the business is better positioned for the next cost event.
Rising construction costs. Fixed-price contracts. Six simultaneous cost inputs. If you are working out what to do and in what order, this is the starting point. Blaze Business & Legal has put the full 8-Step Action Plan into a clear summary you can read quickly, take to a board meeting or use to brief your project team.
Download our PDF summary of the 8-Step Action Plan, covering what to do, in what order, and which risk each step is designed to mitigate.
FREE Action Plan Summary →Or call Rachelle and Shannon directly on (07) 3063 3373
Rising input costs and supply chain disruptions move through your contracts, your projects and your wider business at the same time. Find the area that applies to your business below.
Every unrecoverable cost increase comes directly off your margin. Most contracts contain no effective escalation mechanism. The question is whether your contract is one of the exceptions, and what you can do if it is not.
Read: fixed-price contracts and cost increases →Most Australian escalation clauses calculate against a price index that moves slower than actual costs. Caps and base date limitations often reduce what you recover to well below what you have spent.
Read: rise and fall clauses in Australian construction contracts →Notice time bars in Australian construction contracts typically run from 2 Business Days to 14 Business Days from the triggering event. A missed notice extinguishes an otherwise valid claim permanently.
Read: notice obligations for cost claims →The 2026 Iran conflict pushed diesel prices, transport, plant and construction materials costs sharply higher. If your projects are fuel-sensitive, the gap between your tendered costs and actual cost-to-complete has grown significantly.
Read: fuel costs and construction in 2026 →When you cannot recover costs through the contract, the shortfall comes off margin. Less margin means less cash buffer across your wider business.
Read: how rising costs compress construction margins →Construction failures across Australia are at record levels. The warning signs often do not show in management accounts until things are already serious.
Read: why builders go broke in Australia →The problem rarely sits in just one place. It moves across contracts, margin, cash flow and the wider business at the same time.
Delivery is on track but margin has mostly gone. Variations are being knocked back and notice positions are not being used. The Project is pushing risk back into the business.
The loss does not stay on the job. It flows into cash flow, supplier payments and decisions across other projects.
Blaze Business & Legal works across contracts, recovery strategy, commercial positioning and cash flow to stabilise the business before things get worse.
Plant-heavy work across several jobs. Fuel, freight and input costs are hitting each Project differently. Some remain viable, others are deteriorating, and the combined effect does not show up until working capital tightens.
By the time it reaches management level, the wider business is already affected.
Blaze Business & Legal separates project-level issues from business-level risk, then prioritises recovery, escalation and cash flow protection across the portfolio.
Projects are running and money is coming in. But rising input costs, slow recovery and contract limits are squeezing margin across multiple jobs at once.
The business looks busy. Cash flow and exposure are building underneath.
Blaze Business & Legal maps contracts, commercial strategy and financial performance together, then resets priorities to protect the business.
Quoted the job months ago. Materials and fuel have moved since. The quote is still the price. Every job delivered at a loss chips away at the business, and there is no buffer to absorb it.
Small construction businesses and sole traders are particularly exposed because they have less room to absorb cost increases.
Blaze Business & Legal works out what your contracts actually allow, identifies any recovery options, and helps you make decisions that protect the business going forward.
Not every construction business is at the same stage. Some are still working out what their contracts allow. Others are already in active negotiations with their Principal. Others are watching cash flow tighten and working out how much time they have. Use the sections below to find the analysis that applies to your business right now.
Where contracts limit recovery and construction cost increases have moved beyond what was allowed for at tender. Covers fixed-price contracts, rise and fall clauses and Force Majeure.
Where timing, compliance and documentation decide whether recovery is still possible or has already been lost.
Where projects are still running but profit, overhead recovery and working capital are getting worse in the background.
Where you need to prepare your approach and manage the commercial response before making your next move.
Written and compiled by Rachelle Hare. Covers the 2026 fuel crisis, input cost data, supply chain analysis, contract risk, insolvency trends and the national outlook, with contributions from industry practitioners and government data.
Read the full report →Construction company insolvency rates in Australia are running at elevated levels. The pattern behind most construction insolvencies is predictable. A cost position that was manageable at tender becomes critical under delivery conditions. Cash flow deteriorates before the margin loss shows clearly in project financials. By the time the business is aware of the full position, the options have narrowed significantly. The Construction Cost Crisis is a direct contributor to that pattern for businesses on fixed-price contracts signed before the current cost environment.
Read the full analysis of why construction businesses go broke in Australia →A contract issue affects cash flow. A cash flow problem creates structural exposure. Operational decisions carry legal consequences. Blaze Business & Legal addresses your contracts, commercial strategy, project finances, business structure and risk together. In construction, none of these are separate problems.
25+ years working inside and alongside construction businesses, not advising from outside them. Rachelle has held in-house roles as Acting General Counsel, Senior Legal Counsel, Commercial Manager, Contract Administrator, Procurement Adviser and Risk Adviser across multiple Tier 1 and Tier 2 contractors. Her broad experience allows her to provide integrated support for the 8-Step Action Plan, including advice on contracts and contract rights, projects, commercial strategy, claims and claims preparation, procurement, risk, cost recovery, variation management, negotiation, contract drafting, business structuring and director obligations.
25+ years working inside and alongside construction businesses at every scale. Shannon provides management accounting, cost accounting, fractional CFO services, commercial advisory, cash flow modelling, project profitability analysis, pricing strategy, WIP reporting, operational advisory and business advisory across the full scope of a construction business.
The Construction Cost Crisis in Australia is a sharp rise in construction costs across multiple inputs at the same time. It started building from 2022 and intensified sharply in early 2026 when the Iran conflict disrupted crude oil supply through the Strait of Hormuz, pushing up diesel prices and fuel levies across Australia. Supply chain disruptions followed, lifting construction materials costs. Labour shortages and skills shortages continued to push up wages, particularly in Queensland, New South Wales and Western Australia. The Reserve Bank of Australia’s rate cycle more than doubled finance costs. Construction costs in Brisbane, regional Queensland and nationally are all well above the levels at which most current contracts were priced.
Yes. Construction costs in Brisbane and Queensland face all the same national pressures, plus specific local factors including skills shortages in the Queensland labour market, logistics costs for materials in regional Queensland, and growing labour demand from infrastructure work including Brisbane 2032 Olympic preparations. Queensland construction businesses on fixed-price contracts face the same input cost pressures as businesses nationally, but the local market adds its own layer of difficulty on top of cost increases that are already significant.
Most rise and fall clauses calculate adjustment against a price index that moves more slowly than actual market costs. Caps, base date limitations and calculation methods often reduce what you recover to well below what you have actually spent. Read the clause carefully before relying on it. Rise and fall clauses in Australian construction contracts covers how these provisions work in practice.
Fixed-price does not mean no options. Your contract may contain variation entitlements, escalation provisions or Force Majeure clauses. Commercial paths include negotiated variation and documented change requests. Fixed-price contracts and cost increases explains these options. A Standalone Contract Audit gives you written advice on your specific contracts.
Notice time bars in Australian construction contracts run from 2 Business Days to 14 Business Days from the triggering event. They vary by contract type. Missing a notice deadline or giving a defective notice extinguishes an otherwise valid claim regardless of its merits. Notice obligations for cost claims sets out what each of the main Australian contract standards requires.
Rachelle reviews your specific contracts, works out what cost recovery mechanisms apply, checks your notice compliance and gives you written advice on your options. Shannon assesses margin compression, cash flow and cost-to-complete across your live projects. Blaze Business & Legal then puts together a clear set of recommendations and, where you need us to, works alongside you to implement them. The three fixed-fee services set out exactly how this works and what it costs.
Start before making any big decisions. Review what your contracts allow you to recover. Understand your cash flow and cost-to-complete across every live project. Work out which notice obligations are still open. Our 8-Step Action Plan works through all of this in order. If you need advice now, a Strategy Session at $750 + GST gives you 60 minutes with Rachelle or Shannon directly.
Blaze Business & Legal works out exactly what your contracts allow and where your financial risk sits across every live project. Then we implement the 8-Step Action Plan alongside you to protect your business from the Construction Cost Crisis.
60 minutes high-level discussion with Rachelle or Shannon. Verbal advice on a business issue or problem plus next steps.
Written advice on your contract. What you can claim, how to claim it and the risks. Or audit of your template for future contracts.
2 hours of discussion with Rachelle and Shannon plus a written report with our high-level recommendations across our 8 steps.
Construction Lawyer, Business Adviser and Commercial Manager|Blaze Business & Legal
Rachelle has more than 25 years of experience in construction law, business advisory, commercial management, contract administration and construction business structuring. Her career includes senior in-house legal roles at Tier 1 and Tier 2 construction companies including Thiess, Laing O’Rourke and Acciona, and private practice experience at top-tier law firms Corrs Chambers Westgarth and McCullough Robertson. She also spent over six years as a senior commercial manager on Defence and Tier 2 Construction and Technology Projects, including 8 months as Deputy Program Manager on a construction and technology program of National significance. At Blaze Business & Legal, Rachelle works alongside Shannon Drew to provide integrated construction law, financial management, commercial and business advisory services to construction businesses across Australia.
