Most homes in the Square Mile are flats, and most of those sit on four estates: the Barbican, Golden Lane, Mansell Street and Middlesex Street. That shapes the oven work here more than anything else. Oven cleaning in the City of London runs from £77 for a single oven, cleaned in a non-caustic dip-tank and ready to use the same day. Racks, trays and the inner door glass drop into a heated tank down in the van while we hand-clean the cavity upstairs. No caustic stink to fill a sealed flat, and dinner can go back in the moment we step into the lift. Ring 0333 555 2076 for a firm price in about ninety seconds.
Last updated April 2026. Covering EC1, EC2, EC3 and EC4 across the Square Mile, from the Barbican and Golden Lane estates through Cripplegate, Aldersgate and Farringdon to the Mansell Street and Middlesex Street blocks on the eastern edge near Aldgate.
What an oven clean costs here
Prices first, because that is what the phone rings about. A single oven is from £77. A double, the tall built-in sort with two cavities, is from £110. A 90cm range cooker is from £114, and a two-oven AGA from £143. Tell us the cooker type and how grim it has got, and you get a firm figure before the van leaves the yard.
The whole kit travels with us, so anything sat near the oven is cheaper added to the same visit than booked on its own. A hob is £23 to £28, depending on whether it is gas, ceramic or induction. An extractor hood with its filter is £28. A microwave is £22. In a tight estate kitchen those three almost touch, so a fair few City customers add the hob and the extractor on the day.
| What we clean | Roughly how long | Price |
|---|---|---|
| Single oven | about 90 minutes | from £77 |
| Double oven | about 2 hours | from £110 |
| Range cooker (90cm) | 2 to 2.5 hours | from £114 |
| AGA (2-oven) | half a day | from £143 |
| Hob (gas, ceramic or induction) | 20 to 30 minutes | £23 to £28 |
| Extractor hood and filter | about 30 minutes | £28 |
| Microwave | about 20 minutes | £22 |
No call-out fee. The price covers the products, the kit and getting to you, and you pay on the day by card or bank transfer. You also get a receipt on company headed paper. If you are a leaseholder selling, or a landlord turning a flat round between tenants, that receipt is the proof a managing agent will ask for, and a line scrawled on a notepad will not do.
No caustic stink to fill a sealed flat, and dinner can go back in the moment we step into the lift.
How we actually clean an oven
Most of the trade runs a dip-tank of some sort. What sorts a good clean from a poor one is the chemistry, the bits people skip, and whether the person has done a handful or a few thousand. Ours have done the few thousand. Here is the order it runs in.
- Down goes the floor protection and the worktop either side gets covered. The oven cools right off if it has been on that day.
- Everything that lifts out, lifts out. Racks, trays, runners, the fan cover, and the inner door glass. Modern doors hide a removable inner pane, and the baked film sealed between the layers is the real reason an oven still looks dirty after you have scrubbed it raw. We unclip that pane. Most people never knew it came out.
- The removable parts go down to the heated tank in the van, a non-caustic water-based degreaser held around 60C. Twenty to forty minutes in there shifts the lot: carbon, baked grease, the sugar glaze welded to a tray, the hard-water scale round the grill pan.
- While they soak we work the cavity by hand. Enzyme degreaser on the walls, roof, floor and back panel, left to dwell so the chemistry does the lifting in place of your wrist. Then non-abrasive pads, detail brushes round the seal channel and the element, and a microfibre finish. The fan blade gets extra time, because that is where carbon does the lasting harm.
- Parts back up, rinsed, dried, refitted. Door glass cleaned on both faces, gasket wiped, runners back in their slots. Exactly as we found it.
- A quick function test. Oven on, fan turning, handed back ready to cook on.
It is not glamorous, and we have never pretended otherwise. It is the difference between an oven that looks a bit better and one that is genuinely clean down to the element, which is where the thing decides how long it lasts. Carbon caked on the fan is the commonest reason a tired rental oven has already given up by the time we meet it, and a clean twice a year beats a new oven fitted and a sparky to wire it in.
We have seen worse. Honestly.
Estate flats, lifts and access
The Barbican is the job we do most. Built between the mid-1960s and the mid-1970s as the City rebuilt the bombed-out Cripplegate ward, it is roughly two thousand flats and maisonettes across raised concrete terraces and three tall towers, Cromwell, Lauderdale and Shakespeare, all reached off the high walkways rather than the street. Kitchens in there tend to be compact and built-in, a single oven worked hard in a galley you can touch both sides of. Golden Lane, just over Beech Street, is the City’s other estate, around 550 homes and mostly studios and one-beds, so the ovens are smaller but the access is the same puzzle: a lift, a long deck, then your door.
None of that troubles the method, because the heavy part stays in the van. The dip-tank never comes up. We carry a kit bag and the cavity products into the lift, bring the racks and the door glass back down to the tank, and run the trips while the cavity is dwelling. On a high floor in Cromwell Tower that is two or three lift runs and no fuss. If your block has a concierge or porter, and most of the City estates do, let them know we are expected and the rest takes care of itself.
Getting the van anywhere near is the real City quirk. On-street space in the Square Mile is scarce, metered or permit-only, and a handful of estate roads are access-only, so we plan around the Barbican and London Wall car parks or a short loading stop where the porter points us. The whole City sits inside the ULEZ too, which runs every day bar Christmas. Tell us the block when you book and we work the access out before the day, not on your doorstep.
The heavy part stays in the van, because the dip-tank never comes up the lift.
Thames Water, limescale and your oven
The City has a limescale problem, and ovens cop it as badly as kettles do. Thames Water supplies the whole Square Mile and draws it through the chalk and limestone of the Thames Valley, so what comes out of the tap is very hard, up around 280 to 300 parts per million of calcium carbonate. Every time steam off a roasting tin or a pan of greens hits cold metal, a little more scale is left behind. Grill pans go cloudy, door glass films over, and the chrome on the racks turns dull and rough under your thumb.
Grease and scale together are stubborn in a way grease alone is not. A supermarket spray is built for the grease and slides straight over the scale, which is why a Barbican kitchen can end up with an oven that smells clean but still looks tired. The dip-tank takes on both at once. The warm solution lifts the carbon and the calcium off the same tray in one soak, and the racks come out smooth again instead of gritty.
You can look your own block up on the Thames Water hardness pages if you like. We are not here to sell you a softener. The point is simple: in the City the scale is doing quiet damage on top of the grease, and a clean that ignores it has not really done the job.
What the price includes
Everything below is part of a standard oven clean, not an extra once we are through the door.
- Full strip-down and reassembly of the oven.
- Dip-tank clean of every removable part: racks, trays, side runners, fan cover and inner door glass, plus range trivets and burners where there are any.
- Enzyme cavity clean of the walls, roof, floor, back panel, fan, element and seals.
- Both faces of the inner and outer door glass.
- Hinges and the seal gasket cleaned and checked.
- Control knobs and the front panel wiped down.
- A function test before we go, and same-day use, because nothing we use has to burn off.
- All products, all kit, and getting across the City to your block.
And the part that does not sit on a tidy list: a satisfaction and re-clean guarantee. If something is not right, flag it to the technician before they pack up and it gets put right on the spot. Spot it after we have gone and one phone call brings us back. It rarely comes to that, but the guarantee is there so you are not taking it on trust.
How booking works
It is a short phone call. Ring 0333 555 2076 and tell us the oven type, roughly how bad it is, any add-ons like the hob or extractor, your block, and when suits you. We price it on the spot, usually inside two minutes, and book the slot. You can also email [email protected] if you would rather put it in writing.
Most City oven jobs land within three to five days, and same-day or next-day slots come up often midweek. Month-end is the busy patch, when move-out cleans stack up, so if you are cleaning for a check-out, give us a week where you can. On the day we turn up in a liveried van with the dip-tank aboard, sign in with the concierge if there is one, and you are welcome to stay or get on with something in another room. There is a bit of scrubbing noise and no chemical smell at any point. We test it, show you the result, take payment, and leave. Not sure how bad yours counts as? Send a photo of the inside over the phone and we quote it properly.
We are Monster Cleaning Ltd, registered at 255 Upper Richmond Road West, SW14 8QS, and the City of London is one of the areas our vans run in week in, week out.
Other cleaning we do in the City
Oven cleaning is one slice of what we cover in the Square Mile. The jobs people most often pair with it:
- end of tenancy cleaning in City of London, where the oven is the most-flagged line on the inventory and is built into every booking as standard.
- Carpet cleaning in the City of London, often done on the same visit when a flat is being turned round between tenants.
- Domestic cleaning in the City of London, the regular weekly or fortnightly clean, with an oven added on top once or twice a year.
If you want the full detail of how the dip-tank method works and what it handles, the oven cleaning overview walks through it across all our areas.
Frequently asked questions
How much does oven cleaning cost in the City of London?
A single oven is from £77, a double from £110, and a 90cm range cooker from £114. A two-oven AGA is from £143. Bolted onto the same visit, a hob is £23 to £28, an extractor hood £28, and a microwave £22. You get a firm figure on the phone first, so the price on the day is the one you agreed.
Do you cover the Barbican and Golden Lane estates?
Yes, and they are most of the work. We clean flats and maisonettes right across the Barbican and Golden Lane, plus the Mansell Street and Middlesex Street estates and the few private blocks dotted round the Square Mile. If your postcode is EC1, EC2, EC3 or EC4, you are inside the patch. Ring with your postcode and we confirm in seconds.
Can you reach a high floor in a Barbican tower?
Yes. The dip-tank lives in the van and only the removable parts travel down to it, so all we carry up in the lift is a kit bag and the cavity products. We have done jobs near the top of Cromwell, Lauderdale and Shakespeare towers. Tell the concierge we are expected and the lift sorts the rest.
Can I use the oven the same day you clean it?
Yes, the moment we leave. The dip-tank is non-caustic and water-based, so there is no caustic smell to burn off and nothing to wait for. Dinner can go straight back in. For a flat where you cook every night, that matters more than people expect.
Does the City of London have hard water, and does it hurt my oven?
It does. Thames Water supplies the whole Square Mile and draws it through the chalk of the Thames Valley, so it runs very hard, up around 280 to 300 parts per million of calcium carbonate. Limescale films the door glass and crusts the grill pan on top of the grease. We lift the scale as well as the grease, and the tank does both off the racks without scratching them.
How does parking work for the van in the Square Mile?
We plan it round the building. On-street space in the City is scarce and mostly meter or permit, and a few estate roads are access-only, so we lean on the Barbican and London Wall car parks or a short loading stop where the porter points us. Tell us the block when you book.
How long does an oven clean take?
A single oven is about 90 minutes. A double is closer to two hours, a 90cm range two to two and a half. An AGA can run to a half-day because of its size and the enamel. We give you a realistic time on the phone, useful if you are fitting it into a work-from-home day.
Is the method safe for the oven and the kitchen?
Yes. The tank is warm and water-based, kept well below the heat that would warp metal or lift a coating, and the cavity products are enzyme-based and enamel-safe. Most of the real damage we meet came from years of caustic soda spray stripping the enamel, or wire wool scratching the glass. We use neither, which counts in a sealed flat.
Do you clean the racks, trays and door glass too?
Every part that lifts out comes out and goes in the dip-tank: racks, trays, side runners and the fan cover. We also split the door and clean between the panes, where the brown film you can never wipe away actually sits. It all goes back exactly as it came out.
Do you clean hobs and extractors at the same time?
Yes, and on an estate flat it is worth it. A hob is £23 to £28 depending on whether it is gas, ceramic or induction, and an extractor hood with its filter is £28. In a compact galley kitchen the grease off the hob and the extractor shows the moment the oven next to it comes up clean, so plenty of people add both on the day.
Do you clean pyrolytic or self-cleaning ovens?
Yes. The self-clean cycle bakes the cavity to ash but leaves the door glass, the racks and the fan cover untouched, and it does nothing for the hob or the extractor. Plenty of City flats have one and still book us once a year for the parts the cycle cannot reach.
Is Monster Cleaning a real, insured company?
Yes. We are Monster Cleaning Ltd, Companies House number 9919639, trading since 2014, with a satisfaction and re-clean guarantee on every job. Our Trustpilot sits at 3.1 out of 5 across 128 reviews, which we would rather show you straight than dress up. Insurance papers go to managing agents and landlords on request.