Denise, from Richmond, was officially diagnosed with obsessive compulsive disorder in 2002. She is taking four days out of her own cleaning regime to help 82-year-old retired British Aerospace engineer Frank from Chipping Sodbury. Linda has also recruited hairdresser Adam, who heads to Buckinghamshire to help Helen with her piles of clutter.

The compulsive cleaners are carefully matched with someone whose home is in dire need of a major spring clean. In this edition, 27-year-old OCD sufferer Hayley heads to Plumstead to help library assistant Shereen, who last cleaned her flat a year ago. And 44-year-old estate agent Penny heads to the two-bed home of Paul and Elaine from Surrey. Paul is a self-confessed shopaholic who collects Star Trek memorabilia in the belief it will be his kids' inheritance, but Elaine is worried their home is turning into a death trap with so much clutter.

Mark, from Hampshire, who can spend an hour a day just getting the pleats in his curtains to hang symmetrically, visits single mum-of-two Julie Arkwright, from Lancashire. Hoarding runs in Julie's family: her grandmother was a hoarder and so is her mother. Also joining the team is 29-year-old Cheyza Burch, from Cambridge, who travels to Oxfordshire to help shopaholic Amanda. English

Watch this episode now on 4oD Fifty-eight-year-old former opera singer Cynthia, who has a life-long fear of germs and bacteria, helps 75-year-old Daphne from Gloucestershire, who's lost control of the clutter in the cottage she's lived in for the last 46 years. Linda Dykes and the clean team head to Allesley Park in Coventry to tackle a dog poo problem.

Linda's first recruit is 31-year-old Richard Searle, who is obsessed with order, organisation and tidiness. Richard is paired with Christopher Sylvester, a retired antiques dealer whose stone Victorian cottage is overrun with collectibles and bric-a-brac. Linda also recruits germaphobe Michele Murray, who sets off to help Richard Pugh: he hasn't cleaned his flat since he moved in four years ago. And Linda and her cleaning gang head to Leatherhead to help The Pitstop, a drop-in centre for the vulnerable and the homeless.

James helps mum-of-two Jodi, while Kristy, whose nickname is Dettol queen, helps de-clutter the home of Kay and Dillip, and has a revelation about her own cleaning obsession while she does. And the Obsessive Compulsive Cleaners team tackle a park in Tower Hamlets suffering from graffiti and fly tipping.

Mother and daughter Lesley and Tuesday follow a strict routine of scrubbing, bleaching and dusting, so single mum Sonia, from Farnham in Surrey, could do with their help tackling 20 years' worth of clutter - some of which is preventing her from shutting her bathroom door. Meanwhile, gym owner Vinny, from Sheffield, heads to Margate in Kent, where Robin shares his filthy home with six dogs.

Hygiene-obsessed mother-of-two Jade cleans uninterrupted for six hours every day and goes to great lengths to avoid contact with grease and animal hair. She's paired up with Deborah, whose home in Dunstable, Bedfordshire, has been overrun by six goats, which are free to roam almost everywhere. Meanwhile, mother-of-three Lynsey heads to Blackpool, where newlyweds Scott and Faith are getting by without a kitchen and living among hoards of electrical items.

Ben spends up to two hours a day cleaning his kitchen hob despite the fact he has only used it once, and doesn't sleep in his bed for fear of creasing the sheets. He heads to Guildford, Surrey, to meet upholsterer and craft enthusiast Gerri, whose home is stuffed with three years' worth of material waiting to be upcycled. Also waging a war on dirt is Sarah, who became obsessed with cleanliness after having her first baby. She travels to Coventry to help brothers Andy and Mikk, but is shocked to find an untidy living room and a wall being used as a dartboard on her arrival.

Richard from Hastings bleaches and cleans his fridge at least four times a week. He attempts to help dog minder Linda, from Brentwood, Essex, who can have up to ten dogs in her home at any one time. Louise, from Wiltshire, cleans her sink around eighteen times a day and travels to Swindon to help Michelle, who is a hoarder.

Louise who spends up to thirty hours each week cleaning her house travels to Portsmouth to help Tim who only gives his kitchen a clean at Easter and Christmas. Victoria meets Lesley, who hasn't given her three bedroom flat a proper clean in nearly nineteen years.

Glen spends around thirteen hours each week cleaning his one bedroom flat. He attempts to help David whose collections include around 300,000 books, ten African masks, a strait jacket, three parachutes, 25 military uniforms and a range of magician's props. Zahra vacuums eight times a day and makes her way to Bridgend to help Jo who admits she needs assistance to de-clutter her home. English

Sarah from Ely, has so much clutter that she has filled sheds, a gazebo and much of her house with her hoard. OCD diagnosed Louise, from Cambridgeshire attempts to help her. Adam from Essex, spends three hours a day cleaning his flat and attempts to help Lara, from Rochester, Kent, whose home hasn't had a proper clean in 12 years.

Alison, from Stamworth, Lincolnshire was diagnosed with OCD six years ago and spends more than 30 hours a week keeping her five bedroom home spotless. She makes her way to Waltham Cross, Hertfordshire, to help Dusty Rhodes. Helen, from East Sussex attempts to help Janet, from Luton, whose passion for haberdashery has taken over the house.

London hairdresser Claire, who spends 22 hours a week keeping her one-bedroom flat immaculate, helps out 67-year-old ex-binman Charlie from Hemel Hempstead, who's down to his last clean teaspoon. Andy from Leicester, who likes to clean things in even numbers, meets keen historian and collector Ian, from Colchester, whose two-bedroom house is home to 300 troll dolls.

Gemma, from Hertfordshire, cleans for 12 hours a week to keep her two-bed house immaculate, going through two vacuum cleaners a year. Gemma meets Jim, a father of two from Kent, whose love of car boot fairs has left him with a hoard of over10 tonnes of things, including a lot of women's clothing - collected because of Jim's other hobby, cross dressing. The second volunteer is Angie, from Hampshire, who mops the floor of her three bedroom bungalow in Hampshire, on her knees, twice a day. Angie meets widower Brian at his house in Kent, which is also an owl sanctuary and home to 37 owls. Brian's traditional view of cleaning being 'woman's work' is set to be challenged by Angie, if she can overcome her bird phobia first.

Caren, from Warrington, cleans for at least four hours a day and her cat is only allowed outside on a lead. Caren meets Linda and her son Matt, who have being living amongst grime for nine years and have out-of-date food from the 1990s. The second volunteer is OCD-diagnosed Jamie, from Somerset, who can't stand any form of clutter, uses so much bleach it burns his eyes and must check the door 16 times before he leaves home. Jamie meets Mick, from North London, who lives in a one bed flat filled with clutter and grime. But getting Mick to let go of his precious belongings is not going to be straightforward.

Claire can't abide dirt and won't use her cooker to cook. She meets Sue and Roger, two pensioners from Hertfordshire who once lived the rock and roll lifestyle and are now swamped by clutter. Lynne from Luton takes an old-school approach to cleaning. She visits the home of self-confessed bachelor boys Mark and Karl, two football loving buddies who haven't cleaned their house in over 15 years.

The first cleaning volunteer is 23-year-old council worker Dann, from Nottingham. Dann replaces his loo seat once a month and regularly bathes his cats in flea treatment. Dann helps out Charlotte and Dom, from Portsmouth, who haven't cleaned their flat in a year. The second volunteer is Angela, from Nottingham, who gets through three bottles of bleach a week. Angela meets Lorraine, from Scarborough, who hasn't cleaned her kitchen for two years. And OCD-diagnosed Alison takes on Helen to see who has the most spotless kitchen cupboards.

Amanda from Essex not only works 60 hours a week, but the 31-year-old also spends 20 hours a week on housework. Amanda meets Janine, also from Essex, who is a bit of a hoarder. Full time industrial cleaner Mark, from Leicester, spends more than 80 hours a week cleaning at work and home and has an obsession for colour coordination. He meets 58-year-old unemployed bargain hunter Avril, in Chiswick.

Andy from Reigate, who weeds his patio daily, helps Hayley, who hasn't cleaned her microwave since the 90s. And garden designer Charlie helps Antoinette in Dorset with her clutter.

Glamour model Kerry from Essex helps fellow Essex mum Vikki, whose toilet hasn't been cleaned in four years. And Tina from Slough helps Mike from Ipswich with his junk-filled home.

Lynsey, Mark and Amanda show how to make for a tidier, cleaner Yuletide, with good Christmas card management, evenly spaced festive decorations and a bacteria-free Christmas tree

OCD-diagnosed Carly spends up to seven hours a day cleaning her two bedroom flat. She Nesta from Staffordshire, who allows animals the run of her house. Rob cleans his house up to 30 times a day and attempts to help widow Soo and her son Joe, who have amassed a collection of charity shop bargains.

Medical scientist Kris spends over 22 hours a week keeping his three bedroom home in Wakefield germ free and he attempts to help single mum Edwina and her teenage daughter Natalie in Derby who haven't deep cleaned their house since they moved in nearly a ten years ago. TOCD diagnosed 41-year-old beauty therapist Fiona from Bedford attempts to help married couple Jenny and Paul in Surrey, whose three bedroom house has become overwhelmed with clothes, toys and games.