Grease does not stay where it is produced. Every time something is fried, the fat leaves the pan as an aerosol, travels on the convection current and lands as a thin film on whatever is cooler than the air around it: the underside of wall units, the top of the fridge, the wall above the door, the ceiling. That film then collects airborne dust and becomes progressively harder to shift, which is why an old kitchen feels sticky in places nobody has ever cooked near.
How carbon builds on an oven door
Oven soiling goes through stages. Fresh spatter is fat and wipes away while the cavity is still warm. Left through several cycles, heat polymerises it into a hard varnish, and beyond that it carbonises into a black crust bonded to the enamel. Each stage needs a different approach, and the last two cannot be reached by anything sold for wiping surfaces. Between the two panes of a double glazed oven door, spillage drips down and bakes on where no cloth will ever reach it.
Dip tanks, and what comes out of the appliance
A proper oven treatment starts with dismantling: shelves, runners, the fan cover, the base plate and, where the design allows, the inner door glass. Those parts go into a heated tank with a suitable solution and come out while the cavity itself is being worked by hand, since the cavity cannot be immersed. The alternative, working everything in place with a caustic gel, takes longer and never reaches the same standard on the shelves. Seals are protected, because a perished door gasket costs more than the treatment.
Extractor hoods, baffles and the duct behind
An extractor is the one appliance specifically designed to collect grease, and its filters are the first thing to saturate. Metal mesh and baffle filters are degreased in hot alkaline solution and rinsed; paper and carbon elements are replaced rather than cleaned. A saturated filter stops extracting and starts dripping, which is where the marks on a hob backplate come from. The section of duct immediately above the hood carries a soft coating that is a genuine fire risk in a heavily used kitchen.
Splashbacks, grout and cabinet doors
The wall behind a hob takes the direct spatter, and the material decides the method. Glass and stainless steel tolerate an alkaline degreaser and a plastic scraper held flat. Tiled splashbacks need the grout worked separately, because grout is porous and holds the oil after the tile face is clean. Painted and vinyl wrapped cabinet doors cannot take a strong degreaser without the finish clouding, so those come back with a milder solution, more contact time and more passes.
Why this matters at the end of a tenancy
Inventory clerks check ovens, hobs and extractor filters almost first, because they are the items most reliably neglected and the easiest to photograph. A deduction for a dirty oven is one of the most common outcomes of a check out, and it is entirely avoidable. Where a property is being returned rather than merely tidied, vetted end of tenancy cleaning services in Streatham is scoped against that inspection standard instead of against a household's own sense of clean.
What an oven treatment involves on the day
The appliance must be cold before work starts, so it is switched off well beforehand, and the kitchen is out of use while parts are out. Charging follows the appliance count and type rather than the room, since a range cooker with two cavities is a different job from a single built-in unit. Keeping it from returning to that state is a matter of routine attention, which is what fully insured housekeeping in Streatham provides. Textile floors near a kitchen hold the same airborne fat, and our carpet cleaning service in Wandsworth deals with that. Neighbouring arrangements sit with domestic cleaning services in Norbury and the full range on trusted cleaning services.