HOW TO REMOVE
COOKING SMELL
FROM A FLAT

Why Cooking Smell Lingers in a Flat

Cooking releases hundreds of volatile organic compounds into the air as aerosols — tiny particles of fat, oil, spice and protein that travel far beyond the kitchen. These particles settle on every surface they reach: walls, ceilings, curtains, carpets and soft furnishings. Over months and years of regular cooking, a thin but persistent layer of cooking residue builds on every surface in the property.

As the flat warms up — in summer, or when the heating is on — these embedded compounds off-gas back into the air. This is why a flat can smell noticeably of cooking even when no cooking has taken place for days.

The problem is significantly worse in flats with poor ventilation, ineffective extractor fans, or where strong-smelling food such as fish, curry or heavily spiced dishes has been cooked regularly over a long period.

What DIY Methods Can Achieve

• Deep kitchen clean with degreaser: The most important first step. Specialist kitchen degreasers remove the physical fat and oil residue from kitchen surfaces, cabinets, tiles and extractor fan filters. This reduces the ongoing source of odour. Use a purpose-made kitchen degreaser rather than general household cleaners, which are less effective on accumulated cooking grease.
• Washing curtains and soft furnishings: Remove and hot-wash all curtains, throws and removable covers. Use an enzyme-based laundry detergent which breaks down organic odour compounds more effectively than standard detergents.
• Wiping walls and ceilings: A solution of warm water and white vinegar can neutralise some surface cooking odour on painted walls. Methodically wipe all wall and ceiling surfaces in affected rooms. This is time-consuming but useful for light contamination.
• Replacing or cleaning extractor fan filters: Blocked or saturated extractor filters are a major ongoing source of cooking odour. Replace disposable filters and clean metal mesh filters thoroughly with degreaser.
• Ventilation: Helps disperse airborne odour but does nothing to address embedded surface residue.

The Limits of DIY for Cooking Smell

The most common experience for landlords dealing with cooking odour is: clean the flat thoroughly, repaint, let it air for a couple of weeks — and the smell is still noticeable during viewings, particularly when the flat is warm. This is because the odour compounds are in the wall paint, not just on it.

Strong cooking odours — fish, curry, deep-frying — are particularly stubborn because the aromatic compounds involved have strong affinity for porous materials. They penetrate deeper and remain detectable at lower concentrations than general cooking smells.

What Professional Treatment Involves

Our cooking odour treatment addresses the problem at every level:

1. Assessment: We confirm the main odour sources and which treatment package is appropriate.
2. Specialist degreasing (Complete package): All kitchen and affected surfaces treated with professional-grade degreasers before any fogging or ozone treatment begins.
3. ULV cold fogging: Specialist odour-neutralising solution is applied throughout the property as a fine mist, penetrating curtains, carpets, ceiling voids and wall surfaces.
4. Monitored ozone treatment: Industrial ozone generators neutralise residual cooking VOCs throughout every room, with real-time O₃ monitoring.
5. Ionisation and ventilation.

For moderate cooking smell where the kitchen has already been thoroughly cleaned, our Advanced package (from £695 + VAT) typically delivers excellent results. For strong or long-standing cooking odour, the Complete package (from £1,350 + VAT) includes full surface treatment before fogging and ozone.

Cost of Cooking Smell Removal in London

• Advanced (fogging + ozone + ionisation): from £695 + VAT
• Complete (surface treatment + fogging + ozone): from £1,350 + VAT

Starting prices for a studio or small 1-bed flat. Full pricing by property size →