Pillar guide · 18 min read
The complete appliance cleaning guide
How to clean every kitchen and laundry appliance properly: the part that holds the dirt, the method that works, hard-water descaling, and when to call a pro.
Start here
Why London is a harder job than most of the UK
Most of London is supplied with hard to very hard water (around 250–350 mg/l calcium carbonate), which is why kettles fur, dishwasher spray arms block and washing-machine heaters scale far faster here than in soft-water parts of the UK. Descaling is part of the method on every relevant appliance, not an upsell.
Every appliance that heats water — kettle, coffee machine, washing machine, dishwasher — is fighting scale here in a way it would not be in Manchester or Glasgow. That changes the maintenance rhythm below, and it is the reason descaling is included as standard on every wet appliance we clean rather than sold as an extra.
The matrix
Every appliance, the part that holds the dirt and the method that actually works
Cooking
| Appliance | The hotspot | What works | What to avoid | How often | When to call a pro |
|---|---|---|---|---|---|
| Oven cavity | The roof of the cavity and the corners behind the element, where fat vapour condenses and then bakes into carbon. | Warm the oven slightly, switch it off, apply a non-caustic gel, leave it a full 30 minutes and lift with a non-scratch pad. Repeat rather than scrub harder. | Caustic soda products on self-clean or pyrolytic liners — they strip the coating permanently, and no clean brings it back. | Every 6–9 months in a family kitchen | When the carbon is glossy and hard rather than greasy: that is polymerised fat and needs dwell time plus a dip tank for the parts. |
| Oven door glass (inner panes) | The faces between the panes — visible brown streaking that no amount of front-wiping touches. | Most doors come apart with two screws at the top edge. Slide the inner panes out, clean both faces flat on a towel, reassemble in the original order. | Scraping the inner coating with a blade; the low-emissivity layer scratches and the marks are then permanent. | Twice a year, or whenever it looks hazy | If the panes are bonded, the door is heavy hinge-loaded, or the haze is heat discolouration rather than grease. |
| Oven racks and runners | The undersides of the bars and the telescopic runner slides. | Soak in a bath lined with a towel, hot water and a scoop of biological washing powder overnight, then rinse. | Dishwashers — the detergent dulls the chrome and the carbon does not shift anyway. | With every oven clean | When the carbon has hardened to a shell; heated immersion releases it in minutes without abrasion. |
| Fan cover and back plate | The blades behind the back plate, which coat with grease and then push the smell around the food. | Only if the plate is held by accessible screws and the oven is isolated at the socket. Otherwise leave it. | Spraying liquid through the vents onto the fan motor. | Annually | Almost always — this is the part most DIY cleans skip entirely. |
| Gas hob, grates and burner caps | The crown ports around the burner, which block with boil-over and give a yellow, uneven flame. | Lift everything off, soak the grates and caps, clear the ports with a pin, dry completely before refitting. | Putting damp burner parts back — the flame lifts and sooty marks appear on your pans. | Monthly wipe, quarterly soak | When cast grates have gone matt black; dip-tanking restores them without wire wool. |
| Ceramic and induction glass | Burnt-on sugar, which etches the glass if it is left hot on the surface. | Cream cleaner plus a purpose-made glass scraper held at a shallow angle, on a cold surface. | Wire wool and abrasive pads — the micro-scratches then hold dirt permanently. | After each spill; deep clean monthly | When there is a rainbow-coloured heat bloom, which is a change in the glass, not soiling. |
| Extractor mesh grease filter | The layers inside the mesh sandwich, not the visible face. | Soak flat in very hot water with washing powder or degreaser for 20 minutes, rinse until the water runs clear. | Assuming a dishwasher cycle did it — a saturated mesh still drips grease back onto the hob. | Every 4–8 weeks in a cooking household | When it has never been removed; heated immersion is the only thing that clears a fully loaded mesh. |
| Extractor carbon filter (recirculating hoods) | The charcoal pad itself, which absorbs odour until it is saturated and then does nothing. | Nothing — it cannot be washed. Identify the model and replace it. | Washing it, which destroys the charcoal structure. | Replace every 6–12 months | Ask us to source and fit the right part with the hood clean — around £22 including the filter. |
| Microwave cavity and roof plate | The mica waveguide cover on the side or roof — a small beige panel that arcs if it gets greasy. | Steam a bowl of water and lemon for three minutes, then wipe. Wipe the mica cover gently and dry, never soak it. | Removing or scrubbing the mica cover, and running the oven empty. | Weekly wipe, monthly steam | If the mica is scorched or arcing — that is a part replacement, not a clean. |
| Air fryer | The heating element in the lid, which coats with aerosolised fat and starts to smoke. | Invert the unit when cool and wipe the element with a damp cloth and a little washing-up liquid; wash the basket by hand. | Soaking the base unit or putting non-stick baskets through a dishwasher repeatedly. | Weekly if used daily | If the non-stick coating is flaking, replace rather than clean. |
| Range cooker | Twin cavities, cast grates and the splashback behind, plus the chrome trims. | Non-caustic gel in the cavities, cast parts soaked, enamel worked with non-scratch pads only. | Caustic products on vitreous enamel and aluminium trims — this is what dulls and pits older ranges. | Every 6–9 months | Usually — it is a two to three hour job and the cast parts really need heated immersion. |
| Barbecue and outdoor grill | The flame tamers and the fat tray, not the grill bars everyone concentrates on. | Burn off, brush while warm, then soak the removable parts. Check burner ports for spiders' nests in spring. | Wire-bristle brushes on food surfaces — loose bristles are a genuine hazard. | Start and end of season | For a full strip-down; we do it on the patio or balcony from April. |
Cold
| Appliance | The hotspot | What works | What to avoid | How often | When to call a pro |
|---|---|---|---|---|---|
| Fridge shelves and drawers | The channel and drain hole at the back of the fridge floor, which blocks and pools water. | Empty, wash shelves in warm soapy water, clear the drain hole with a cotton bud, wipe with a bicarbonate solution. | Bleach and strong perfumed products, which taint food and can craze plastic. | Monthly | When the smell survives cleaning — that usually means the drain, the gasket or the drip tray underneath. |
| Fridge and freezer door gasket | The concertina folds of the rubber, where black mould grows unseen. | A soft toothbrush, warm water and a little bicarbonate through every fold, then dry. | Pulling at the gasket — a stretched seal costs you cooling and adds to the bill every month. | Monthly | If a note of paper slides out easily when the door is shut: the seal has failed and needs replacing. |
| Condenser coils | The black grille at the back or the base grille at the front, blanketed in dust. | Unplug, pull out where the flooring allows, vacuum the coils with a brush head. | Bending the fins or dragging the unit across a wood or vinyl floor. | Twice a year | In a fitted or integrated kitchen where the unit cannot be pulled out safely. |
| Freezer compartment | Ice build-up on the back wall, which is usually a door-seal or over-filling problem, not a fault. | Defrost fully with towels down; never chip at the ice with a knife. | Hot water poured directly onto plastic liners, which cracks them. | When ice exceeds 5mm | If frost returns within weeks — that points to a seal or a thermostat, and that is an engineer's job. |
Laundry
| Appliance | The hotspot | What works | What to avoid | How often | When to call a pro |
|---|---|---|---|---|---|
| Washing machine door seal | The lower fold of the bellows, which holds water, hair and detergent scum and turns black. | Peel the fold back, clean mechanically with a cloth and a mild bleach solution, then dry it and leave the door ajar between washes. | Ignoring it and treating the smell with fabric conditioner, which makes the biofilm worse. | Fortnightly | When the mould has gone into the rubber itself — we will tell you honestly if the bellows needs replacing. |
| Detergent drawer and housing | The roof of the housing the drawer slides into, which nobody looks at and which grows black slime. | Remove the drawer (there is usually a release catch), soak it, and scrub the housing roof with a bottle brush. | Overdosing detergent, which is what causes the residue in the first place. | Monthly | Rarely needed — but we do it as standard on every washer clean. |
| Pump filter | The small hatch at the bottom front, holding coins, hair and standing water. | Towel down, open the drain hose first, then unscrew the filter and rinse it. | Opening it without draining — you will flood the floor. | Every 3 months | If the machine will not drain after clearing it, stop: that is a pump fault for an engineer. |
| Tumble dryer lint path | The secondary filter behind the main one, and the housing it sits in — the genuine fire-risk spot. | Clear the main filter every load, rinse the secondary filter monthly, vacuum the housing. | Running the dryer with a blocked filter, which is the single most common cause of dryer fires. | Every load / monthly | If drying times have doubled, the condenser block or the vent duct needs proper clearing. |
| Condenser block and water tank | The pleated condenser matrix, which clogs with fine lint invisible from the front. | Remove and rinse under a tap until water runs through freely, then dry before refitting. | Refitting it wet or the wrong way round. | Monthly | On heat-pump models where the block is behind a sealed panel. |
Water-heating
| Appliance | The hotspot | What works | What to avoid | How often | When to call a pro |
|---|---|---|---|---|---|
| Washing machine drum and heater | The heating element, which furs with limescale in hard-water London and then costs more to run. | Run an empty 90°C cycle with a proprietary descaler every 2–3 months. London water sits at around 250–350 mg/l calcium carbonate, so this is not optional here. | Neat household vinegar every wash, which degrades rubber hoses and seals over time. | Every 2–3 months in London | When you can see white crust on the kettle element — the machines are in the same state. |
| Dishwasher filter basket | The fine mesh under the coarse basket, which holds the food that causes the smell. | Twist out, rinse under a hot tap with a brush, check the sump beneath it. | Leaving it a month — a blocked filter recirculates dirty water over clean plates. | Weekly | When the smell persists after cleaning the filter, seal and arms. |
| Dishwasher spray arms | The individual jets, which block with limescale and food and leave whole racks unwashed. | Unclip the arms, clear each jet with a cocktail stick, soak in descaler, refit and check they spin freely. | Assuming poor results mean a broken machine — nine times in ten it is blocked jets. | Every 2–3 months | Bundled with a full dishwasher deep clean and descale. |
| Dishwasher salt and rinse aid | The softener reservoir, which most London households never top up. | Fill the salt reservoir with dishwasher salt (not table salt) and set the hardness level to hard in the settings. | Relying on all-in-one tablets alone in a hard-water area — the softener still needs salt. | Check monthly | Ask us to set the hardness level correctly at the clean; most machines are still on the factory default. |
| Kettle | The element plate and the spout filter. | Half fill with a 50/50 water and white vinegar solution or a proprietary descaler, boil, stand 30 minutes, rinse three times. | Descaling a plastic-bodied kettle with strong acid concentrations, and scraping the element. | Monthly in London | Never — but we add it to any visit for £10–£20 alongside the coffee machine. |
| Coffee machine | The boiler and the brew group, plus the milk path on bean-to-cup machines. | Use the manufacturer's descaling programme and a milk-system cleaner; both matter and neither replaces the other. | Vinegar in a machine the manufacturer has not approved it for — it can perish internal seals. | Every 4–8 weeks in London | Added to any appliance visit at £12 per item. |
Small
| Appliance | The hotspot | What works | What to avoid | How often | When to call a pro |
|---|---|---|---|---|---|
| Toaster | The crumb tray and the base beneath the elements. | Unplug, empty the crumb tray, invert over a bin, and brush the outer casing only. | Putting a knife or anything metal inside, even unplugged — it bends the element cage. | Fortnightly | Never; this one is genuinely a two-minute job. |
Print it
The appliance maintenance calendar weekly to yearly
Stick this inside a cupboard door. Everything above the six-month line is genuinely DIY.
Every week
- Rinse the dishwasher filter basket
- Wipe the microwave cavity and roof plate
- Wipe the hob and lift the grates
- Empty the tumble dryer lint filter after every load
Every month
- Descale the kettle — London water demands it
- Clean the washing machine door seal fold and detergent drawer
- Clean the fridge gasket folds and clear the drain hole
- Rinse the tumble dryer condenser block
Every 2–3 months
- Soak the extractor mesh grease filter
- Run a descaling service wash in the washing machine at 90°C
- Clear the dishwasher spray-arm jets and run a descale cycle
- Clear the washing machine pump filter
Every 6 months
- Deep clean the oven cavity and split the door glass
- Soak the oven racks, runners and hob burner parts
- Vacuum the fridge condenser coils
- Replace the extractor carbon filter if the hood recirculates
Every 12 months
- Professional oven, hob and extractor clean with dip-tanked parts
- Fan cover and back plate cleaned behind the oven cavity
- Full washer, dishwasher and fridge service clean
- Check every door seal and replace what has perished
Questions
Appliance cleaning questions, answered
A non-caustic, biodegradable oven gel with proper dwell time. Caustic soda products work quickly but strip self-clean and pyrolytic liners, dull aluminium trims and give off fumes that mean leaving the property. Time and the right chemistry beat aggression every time.
Because the smell almost always lives in a fold or a filter rather than on a surface: the washing-machine door seal, the dishwasher filter and spray arms, the fridge drain channel and gasket, or a saturated extractor carbon filter. Clean those five and the smell goes.
Kettles monthly, coffee machines every four to eight weeks, and washing machines and dishwashers every two to three months. London's supply is hard to very hard at around 250–350 mg/l calcium carbonate, so scale builds far faster here than in soft-water regions.
No — dishwasher detergent dulls the chrome and it will not shift baked carbon anyway. An overnight soak in hot water and biological washing powder is the DIY method that works; heated immersion is the professional one.
Greasy brown film will, once the inner panes are separated and cleaned on both faces. Heat discolouration and scratches will not, because the material itself has changed. A reputable cleaner tells you which one you have before starting.
When the parts need heated immersion (racks, cast grates, loaded hood filters), when the fan cover needs to come off, when a range cooker or Aga is involved, or when a check-out photo report is required. Weekly maintenance is genuinely DIY; the annual reset is not.
Rather we did the annual reset?
Fixed prices from £10 per appliance, £65 minimum visit, across all 33 London boroughs.