A professional cleaner has revealed her grottiest transformations - including mould covered student flats and filthy loos. Chelsi Quenet, 28, has been getting elbow-deep in all kinds of grime since she became a cleaner three years ago. The mum-of-two runs a private cleaning company with her aunt Becky Dawe, 44 along with four other family and friends. They do grotty post-tenancy deep cleans for landlords. While sometimes she cleans well-kept homes, she can also be faced with festering toilets and mould-covered fridges. She says the worse the house is at the start, the more she enjoys the challenge - because of how satisfying the transformation is. Chelsi, from Colchester, Essex, said: "I've seen some pretty grimy things. "But I like it - it's boring cleaning something which is already clean! "I'd rather help someone who is struggling so they can get their place looking nice again." Chelsi first got into cleaning while on maternity leave with her daughter Frankie, three. After joining forces with her aunt at Colchester Cleaning Services, she turned her love for cleaning into a career. Together they tackle everything from family homes to cluttered shared living - and notoriously grimy student houses. Sharing her impressive cleans on TikTok, Chelsi has amassed more than 40,000 followers - and millions of views. Her most popular two videos documented her two most memorable cleans - because they were the worst to begin with. One shows a brown mouldy toilet in a wet room - which was so bad it took one and a quarter hours to complete compared to her standard minute-long toilet clean. The second showed a mouldy fridge full of rotting food - which she said "smelt like a dead person's breath - after they'd eaten a load of cabbage." She said: "It was the smelliest thing I've ever done - I couldn't believe it. "Luckily it only took about half an hour because it came off quite easily." But she said these are the most satisfying to complete because she can achieve a "quite dramatic" transformation. Her top cleaning tip is buying a glass scraper - which are between £3 and £10 - and can tackle almost any cleaning challenge. She said: "You don't need to use harsh or dangerous chemicals like acids, it's the tools you use. "A scraper can get off almost anything. You can scrub with a sponge for ages then you use the scraper and it all comes straight off." Chelsi explained that her worst ever clean, which she sadly didn't film, which was a shipping container people had been living in, which hadn't been cleaned in MONTHS. She said: "It was so dirty. It was cold too and took hours!" The mum, who works 25 hours per week, has no plans to stop cleaning because of how rewarding she finds it. In fact Chelsi said her dream is one day to specialise in working with hoarders whose homes grow unclean - to make them sparkly and nice again. Chelsi said: "When something starts really bad, the reactions are always better because the owners can't believe they are so clean! "It makes it a lot more fun and exciting."