Let the oven go cold overnight, empty every rack and tray, clear the hob and a stretch of worktop, and have parking sorted before we knock. A single oven takes about 90 minutes and you can cook in it the same evening.
A professional oven clean needs less from you than most people expect, but the few things it does need keep the visit on time. Here is what we ask, what we do once we are in, and how to keep the result.
What to do before we arrive
The oven must be cold. We clean the cavity and glass by hand, and nobody can hand-clean an enamel box that was roasting potatoes at 200C an hour earlier, so make the evening before your last cook. Grill elements hold heat longest; skip the breakfast grill.
Empty the cavity: racks, trays, the grill pan, pizza stones, meat thermometers. Clear the hob of pans and the kettle, and give us one free stretch of worktop, because the door comes off and gets split where the design allows, and door glass is safest lying flat on a covered surface.
Cats bolt. Shut pets away.
The night-before checklist:
- Last cook finished; oven cold to the touch by morning
- Racks, trays, grill pan and pizza stones out of the cavity
- Hob cleared and one stretch of worktop free
- Parking or a visitor voucher arranged
- AGA switched off the night before, doors and lids open
- Pets shut in another room
Prep differences by oven type
Most of the list above is universal. The differences worth knowing:
| Oven type | Switching off | Extra prep |
|---|---|---|
| Single built-in | Cold by arrival; last use the evening before | Nothing extra; the door usually splits for the glass |
| Double oven | Both cavities cold, including the top grill | Empty the small cavity too; trays hide in there |
| 90cm range | All cavities and the griddle cold | Clear the floor in front; empty any warming drawer |
| Two-oven AGA | Off the night before, doors and lids open | Cast iron holds heat for hours, so overnight is the rule |
AGA's own care guidance says what we say: switch off the night before a proper clean and leave the doors and lids open so the stored heat escapes. A cooker that was on at bedtime is still cooking at nine, and an AGA we cannot touch is an AGA we cannot clean. The two-oven AGA clean is £143.
What happens during the 90 minutes
For a single oven the visit runs to a settled routine. Dust sheets go down first. Racks, trays and side runners go straight into the heated dip tank in the van, where they soak for most of the visit.
Ninety minutes assumes a cold oven. A grill used at breakfast can cost us twenty of them.
Indoors, the door is lifted off and split where its design allows, so both faces of the inner glass get cleaned. The cavity, roof, fan cover and glass are degreased by hand with non-caustic products; nothing needs the windows open. Hob and extractor are done now if booked. Then everything returns: racks rinsed and dried, runners refitted, door rebuilt and rehung.
The heat test and sign-off
Before we leave, the oven goes back on and runs up to temperature. The heat test proves the elements, fan and thermostat survived the strip-down, and it drives off the last cleaning moisture. While it warms, the technician walks you round the glass, cavity and racks. Anything etched into the enamel rather than sitting on it gets pointed out there and then.
The first cook afterwards
You can cook the same day; there is no burn-off hour and no chemical smell to air out. On the first hot cook you may notice a wisp of steam near the door as moisture works out of the seal and hinges. It passes within minutes, and it is water.
Keeping it clean between visits
The habit that does most of the work is the warm-oven wipe. Once the oven has cooled to hand-warm, wipe the floor, inner glass and frame with a damp soapy cloth. It takes under a minute. Grease that is hours old wipes off; grease baked on forty times is why our phone rings.
Liners help if you follow the liner makers' instructions: a PTFE liner sits on the lowest shelf rather than the oven floor, never touching an element or gas flame, never covering the vents of a gas oven. Foil laid straight on the floor is worse; we regularly meet foil welded into the enamel, and it rarely all comes out.
Three surfaces get ruined by the wrong product, and the manufacturers are blunt:
- Catalytic liners and coated back walls
- Never let shop oven cleaner touch them. NEFF's manuals put it flatly: never use oven cleaner on the back wall. The coating stops working, and AEG's advice for a ruined liner is replacement.
- Door glass
- Skip scouring pads and blade scrapers. Bosch's guidance for oven glass is mild soapy water and a soft cloth, with a purpose-made degreaser for baked-on films.
- The door seal
- Wipe it and leave it alone. Bosch manuals say keep the seal clean but do not scrub or remove it; a damaged gasket leaks heat on every cook that follows.
- AGA enamel
- AGA says never use oven cleaners on its enamel, and never a cold wet cloth on a warm surface. A daily rub with a damp soapy cloth, then a dry one, is the whole regime.
When to book the next one
The honest answer varies by household; the patterns we see are written up in our guide to how often you should clean your oven. Most of our regulars settle between six and twelve months, heavy roasters nearer six. Rebooking is the same phone call, with the same fixed prices quoted before we come.
Questions we get asked on the doorstep
What if the oven is still warm when you arrive?
We start on the racks and tank work while it cools, but a hot cavity adds waiting time, and a morning grill can hold heat for a couple of hours.
Do I need to stay in for the whole 90 minutes?
Someone lets us in and someone signs off after the heat test. In between you are free; we are back and forth to the van, so the door stays on the latch anyway.
Will the kitchen smell of chemicals afterwards?
No. The cavity is cleaned by hand with non-caustic degreaser rather than filled with caustic foam, so there are no fumes and dinner goes ahead.
Do you take the racks and trays away?
No further than the kerb. They soak in the heated tank in the van outside and come back rinsed, dried and refitted before we leave.