Monthly construction output fell by 0.3% in August 2025, according to new data from the Office for National Statistics (ONS).

The ONS has also revised its figures for July, saying the month showed “no growth”, having previously said there was 0.2% growth.

The decrease in monthly output in August 2025 came solely from a decrease in repair and maintenance (1.5%), as new work increased on the month (0.5%).

Despite August and July’s poor performance, total construction output is estimated to have grown by 0.3% in the three months to August 2025.

Over the three-month period, new work fell by 0.4%, and repair and maintenance grew by 1.3%.

At sector level, five out of the nine sectors grew in the three months to August 2025; the main contributor to the increase was private housing repair and maintenance, which grew by 5.6%.

Jo Streeten, managing director, buildings and places at AECOM, said: “A month of declining output in our peak season is a reminder of the fragile footing the sector remains on as it heads into the typically more testing colder months. Despite this, the underlying demand for construction is still there and the challenge now is retaining momentum in the face of ongoing cost pressures.

 “To make sure this slowdown doesn’t take hold, the long-anticipated boom in housebuilding needs to start taking shape soon, while the commercial sector must keep up its strong run, especially with Grade-A office space still in short supply.

 “The government’s investment plans for infrastructure and housing are clear. Now it’s about how quickly the sector can capitalise on them, which will rely on cost pressures easing. All eyes are already on the Budget for measures to help.”