The Lives and Deaths of London’s Climbing Boys
Louisa Cornell
Andrea and I decided early on in writing our third series together that we wanted to bring the world of London’s darker side to life for our readers. To do so we had to delve into the very real and horrifying world of London’s East End where poverty, violence, and despair were the bread and butter of the residents of Seven Dials, St. Giles, and White Chapel – the most notorious of the slum areas known as The Rookeries.
The heroes of Bow Street’s Most Wanted – The Four Horsemen are hard men, made so by their cruel and desperate childhoods. As a result they tend to have neither sympathy nor soft spots for no one save perhaps children, children whose circumstances were as desperate as their own had once been. Some of the most used, abused, and desperate of children in this era were those who were apprenticed, sold, or sometimes kidnapped into the service of London’s chimney sweeps.
From the late 16th to the 19th century, chimney cleaning was a vital yet hazardous occupation in Britain. With the increased use of coal as a primary fuel source and the evolution of chimney design to include narrower, more intricate flues, adult sweeps were unable to access certain parts of the chimney for cleaning. Children, some as young as four, were employed to navigate the narrow, winding flues of chimneys, scraping away soot and creosote to prevent fires and maintain airflow.
Small boys, sometimes orphans or boys essentially sold by impoverished families, were employed as climbing boys to clean these inaccessible areas. If they were lucky they were apprenticed to master sweeps who were paid by the parish to teach them the trade. These apprentices tended to be treated better than the orphans or other boys. Climbing girls were also employed, although they were less common.
Very often those that had been sold by their parents had even signed papers securing the master sweeps status as their legal guardians, meaning these young children were tied to their master and their profession until adulthood with no route to escape, except death.

In addition to the dangers of cruel and uncaring masters, the job had a number of inherent risks that came with it. Climbing boys faced numerous perils, including getting stuck in narrow flues, suffocating on soot, suffering burns from hot or even burning chimneys, and falling. Some would have to buff it or climb naked to fit into the tight spaces. Exposure to soot and the physically demanding nature of the job led to a range of health issues, including respiratory problems, eye inflammation, skin sores, deformities, and stunted growth, not to mention burns.
A particularly deadly consequence was chimney sweeps’ carcinoma, or “soot wart,” an aggressive form of scrotal cancer caused by irritation from the carcinogenic substances in coal soot. This was the first occupational cancer ever to be identified, according to The Institute of Cancer Research.
There were variations between buildings, but a standard flue would narrow to around 9 by 9 inches. With such a small amount of movement afforded in such a small space, many of the climbing boys would have to inch their way up using only knees and elbows to force themselves forward.
Many of the chimneys would still be very hot from a fire and some might still be on fire. The skin of the boys would be left stripped and raw from the friction whilst a less dexterous child could possibly have found themselves completely stuck.
The position of a child jammed in a chimney would have often resulted in their knees being locked under their chins with no room to unlock themselves from this contorted position. Some would find themselves stranded for hours whilst the lucky ones could be helped out with a rope. Those less fortunate would simply suffocate and die in the chimney forcing others to remove the bricks in order to dislodge the body. The verdict given by the coroner after the loss of a young life in this fashion was accidental death.

Several acts of Parliament were passed to regulate the trade and restrict child labor in chimney sweeping, starting with the Chimney Sweepers Act of 1788.
In 1788, the Chimney Sweepers Act was enacted to regulate the trade by setting a minimum apprenticeship age of eight and limiting the number of apprentices per master. However, due to inadequate enforcement, these regulations had little impact. Further legislative attempts, including acts in 1834 and 1840, also failed to bring significant change.
The practice was finally outlawed in England in 1875 with the passage of the Chimney Sweepers Act, which was a result of sustained efforts by reformers and sparked by the tragic death of 11-year-old George Brewster, the last recorded fatality of a climbing boy. Brewster became trapped while cleaning a flue at the County Pauper Lunatic Asylum in Fulbourn near Cambridge and did not survive the ordeal. His death spurred renewed public outcry, prompting Lord Shaftesbury to champion the cause. This advocacy culminated in the Chimney Sweepers Act of 1875, which mandated the registration of chimney sweeps and effectively prohibited the employment of children in chimney cleaning. This legislation marked a significant advancement in child labor laws in Britain.
In recognition of the sacrifices made by these young workers, a blue plaque was unveiled on 11 February 2025, commemorating George Brewster’s life and his role in ending the use of child chimney sweeps in England. He is the youngest British person honored with an official blue plaque.
EXCERPT FROM: FAM – LORD OF HUNGER
Their horses began to tire after a few miles. Fam guided Bess into a slow trot as they crossed into the far edges of Mayfair. He continued to check on the child whose breaths had grown shallow and less frequent. The smell of coal and the filthy face led him to believe this limp bag of bones and rags had been used as a climbing boy by some soon-to-be-dead chimney sweep. His blood heated at the thought of what he’d do to the fiend who had used this boy and dumped him like an old stray dog.
https://www.amazon.com/dp/B0DWZ2JKX6/
https://www.amazon.com/dp/B0DZV4QBLF/