Advice
How often to clean your oven
East Cambs Oven Cleaning, Burwell, Cambridgeshire. Checked 15 September 2026.
The short answer
How often should you clean your oven? When it starts showing it, rather than when a date comes round. Brown door glass, smoke when the grill goes on and a smell as it warms up are the three signs, and a cooker that roasts most Sundays reaches them sooner than one that mostly boils.
The three signs that decide it
An oven gives you the answer before a calendar does, and it gives it in three ways. Any one of them on its own is enough to act on, and none of them has anything to do with how long the appliance has been in the kitchen.
The door glass has gone brown
The one you can see without opening anything. A brown or streaked film that a cloth does nothing to is not on the face you are wiping. It is on the inside faces of the panes, and it only gets there by being left.
Smoke when the grill goes on
Nothing on the shelves causes that. It is carbon baked onto the element and the roof of the cavity burning off, and it is the sign people notice long after they stopped noticing the rest.
A smell when the oven heats up
The same cause reaching a different sense. Carbon in the fan housing and on the element gets hot before the food does, and once you can smell it from the other side of the kitchen there is plenty of it.
What a year of roasting does to a cavity
Roasting puts fat into the cavity as vapour. It settles on the roof, the back wall, the element and the fan cover, and the next time the oven goes to a high heat it bakes on where it landed. Do that most weekends and what is in there stops being grease and becomes carbon: dry, hard and part of the metal rather than sitting on top of it.
That difference is the whole of it. Grease comes off with a spray and a cloth, which is why the base and the inside of the door stay manageable. Carbon does not come off that way at all, which is why an oven that gets wiped out regularly can still smoke, still smell and still have brown glass.
It follows what you cook, not how long you have had it
Two identical cookers bought on the same day are not due at the same time. One doing a joint most Sundays, a tray of chips midweek and the occasional thing that boils over is filling up steadily. One used for baking, with the real cooking happening on the hob, is barely filling at all. Heat and fat together leave the layer, and a pan of pasta leaves none of it in the oven.
So the useful question is not how many months have gone by, it is how much roasting has gone on in them. You already know which of those two kitchens is yours, and the three signs above tell you the rest.
What wiping it out reaches, and what it never will
Keeping on top of the base and the inside of the door is worth doing and it slows the whole thing down. A spray, a cloth and half an hour catches the spills before they bake, and that is as far as anybody gets without taking anything off the appliance.
What it never reaches is the part that decides when the oven is next due. The fan cover has to come off to get at what is behind it, the door has to come apart to reach the film between the panes, and the racks have to soak rather than be scrubbed. That is where the carbon is, so a wiped oven can still hit all three signs. Wiping keeps it tidy. It does not put it back.
However long it has been, a single oven is £70 and the state of it does not change the number.
Get a priceThe moments that settle it for you
For most people the question is answered by something in the diary rather than by the oven. Four of them come up again and again.
A tenancy ending
The date is not yours to choose, so the oven gets done whether the signs are there or not. The landlord pack is £115 and covers the oven, the hob, the extractor and dated photographs for the file.
A house going on the market
Photographs and viewings put the kitchen front and centre, and the cooker is one of the few things in it that a fixed price puts right in a single visit.
A new appliance going in
A new oven makes an untouched hob and extractor beside it obvious, and doing all three in one visit costs less than booking the other two on their own later.
A smell that has got into the kitchen
Once it is in the room rather than in the oven, it comes back every time the oven is turned on, and wiping the base never reaches what is causing it.
The tenancy side of it is on the landlord and end of tenancy page.
Leaving it longer never costs you more here
The appliance sets the price and the condition never does. A single oven is £70 whether it was done in the spring or has never been done at all, and a double is £85 on the same rule. An oven that has been left takes us longer on the day, and the longer day is ours rather than yours.
It is worth saying plainly, because it is the opposite of how most jobs around a house work. What waiting actually costs is the months of the smoke, the smell and the brown glass, which is the reason to go by the signs rather than by a date somebody else picked. Every price is published and what the job costs round here is set against 11 local price lists.
Questions about how often
We have just moved in and nobody knows when the oven was last cleaned. Where do we start?
With the door glass. If it has gone brown and a cloth does nothing to it, the film is on the inside faces of the panes, so the household before you was not having it done. Smoke off the grill and a smell as it warms up say the same. None of it changes the price, so the only thing to decide is which appliances you want doing.
Does it depend on what we cook, or just on how much we use it?
What you cook. Heat and fat together are what leave a layer behind, so a joint most Sundays fills a cavity faster than a kitchen that uses the oven every day for baking and does the rest on the hob. Months are a poor guide to it, which is why the three signs are a better one.
The cooker looks fine from the outside. Does that mean it is?
Not on its own. The outside of the door is the one part that gets wiped, so it is the last place the state of an oven shows. Open it and look at the roof, the back wall and the fan cover, and look at the glass from the inside with the door open rather than from across the kitchen.
Is it better to have it done little and often, or to leave it until it needs it?
Each visit is a fixed price for the appliance, so the same work split over more visits costs more, and carbon does not come off any easier in stages. Have it done when the oven tells you, and have the hob and the extractor done in the same visit while we are there.
Should we have it done before Christmas or after it?
Either works, and it depends which you would rather have. Before, and the cooking happens in a clean oven. After, and the roasting that caused the mess is already behind you. What we would not do is decide it on the date alone, because the state of the oven is the thing that actually answers it.
Whenever it was last done, the price is the same
Brown glass, smoke off the grill or a smell as it warms up, and any one of them is enough. £70 for a single oven, £85 for a double, fixed before we set off. East Cambridgeshire and west Suffolk, from Burwell, Cambridgeshire, with no VAT to add.
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