Ghana’s construction industry may be facing a new source of cost pressure as rising plant and machinery expenses begin to weigh more heavily on project budgets, despite a relatively moderate increase in overall building costs.
The Ghana Statistical Service (GSS) has called for closer monitoring of the increase in plant costs by government, businesses and other stakeholders, warning that higher machinery-related expenses could expose construction projects to additional costs.
Plant inflation rose by 17.9 percent year-on-year in August 2026, well above the 4.6 percent overall inflation recorded by the Prime Building Cost Index (PBCI).
The increase was driven by a 10.7 percent rise in equipment costs and a much sharper 23.4 percent increase in small tools.
Although plant accounts for only four percent of the PBCI basket, it contributed 15.6 percent to the overall increase in building costs, making it a relatively small component with a growing influence on construction expenses.
For contractors and developers, the trend could have implications for project estimates, equipment-intensive works and the cost of completing projects where machinery and specialised tools form a significant part of operations.
Cost pressures are becoming uneven
The latest figures point to a construction market in which cost movements are increasingly mixed rather than moving in one direction.
Overall building inflation increased to 4.6 percent in August, from 4.0 percent in July, but remained well below the 12.0 percent recorded a year earlier.
Materials continued to account for the largest share of building costs, representing 76.5 percent of the PBCI basket. Their prices rose by 5.8 percent over the year and accounted for 96.5 percent of the upward movement in the index.
Labour, however, provided some relief, with labour costs falling by 2.9 percent year-on-year.
The contrasting movements mean that the headline building inflation rate does not fully capture the cost pressures facing individual construction activities.
Some inputs rising sharply
Several construction inputs recorded considerably higher inflation than the headline PBCI rate.
Plumbing recorded the highest annual increase at 26.1 percent, followed by reinforcement at 24.2 percent, small tools at 23.4 percent, roofing sheets at 21.7 percent and glazing at 20.4 percent.
At the same time, some key inputs became cheaper.
Steel prices fell by 8.9 percent, cement by 7.1 percent and fine aggregate by 5.1 percent. Unskilled and skilled labour costs also declined by 4.6 percent and 1.8 percent respectively.
The pattern suggests that contractors and developers cannot rely solely on the headline inflation rate when estimating the cost of individual projects.
Implications for project pricing
The GSS said businesses should use current cost information when pricing contracts and pay particular attention to their exposure to plant, tools and other high-inflation inputs.
It also recommended flexible procurement arrangements and transparent price-adjustment clauses in contracts to help manage changes in construction costs during project execution.
For government, the Service called for closer monitoring of plant and installation costs while using the relatively lower inflation environment to support more effective project delivery.
The latest PBCI covers 406 construction items across materials, labour and plant and equipment, with prices collected from 489 outlets in 16 markets.
The index provides contractors, developers, households and policymakers with a measure of changes in construction costs to support budgeting, contract decisions and project planning.
The August figures suggest that while Ghana’s construction sector is operating in a much lower inflation environment than a year ago, cost risks have not disappeared. They are becoming more concentrated in particular areas, with plant, machinery and selected construction inputs emerging as areas that could put pressure on project budgets.
