Skip to content
CleaningHQSearch

Guides

Ways in, organised by the room, the material or the problem you arrived with.

Rooms and the things in them

Start here if you are standing in front of the thing.

  • Cleaning a bathroom

    Five surfaces within arm's reach of each other, with rules that genuinely contradict — and the product aisle sells one spray for all of them.

    Includes cases where the obvious answer is wrong

  • Laundry and fabric care

    Fibres, temperatures and the one stain where the universal instinct is exactly wrong — plus the label that outranks all of it.

    Includes cases where the obvious answer is wrong

  • Cleaning appliances

    Machines that clean things still have to be cleaned, and their manuals contradict most of what is said about them.

    Includes cases where the obvious answer is wrong

  • Outdoor furniture and barbecue

    Frames, cushions and grates: three materials that look alike, three different answers, and one instruction that is really about food safety.

    Includes cases where the obvious answer is wrong

  • Cleaning electronics

    The one area where the risk is not what the liquid does to the surface, but where the liquid goes — and five manufacturers say the same thing about it.

  • Cleaning a kitchen

    The room where heat turns ordinary soil into something else, and where the strongest product on the shelf is prohibited on half the surfaces it is aimed at.

    Includes cases where the obvious answer is wrong

  • Cars and vehicles

    Forty microns of clear coat doing all the work, and a wheel finish whose own standards body forbids the products sold to clean it.

  • Paths, patios and driveways

    Where the standard annual treatment removes the jointing along with the dirt, and the manufacturer says so in writing.

    Includes cases where the obvious answer is wrong

  • Fireplaces and stoves

    One appliance with three surfaces that need opposite treatment, and a maintenance task that is a fire-safety requirement rather than housekeeping.

  • Coffee machines and descaling

    The appliance whose maker's own procedure begins by removing the filter that exists to prevent scale — and ends with a rinse almost nobody completes.

    Includes cases where the obvious answer is wrong

  • Bicycles and drivetrains

    Cleaning it wrong is a mechanical risk here rather than a cosmetic one.

Materials and surfaces

What something is made of decides what may touch it. Most of the useful rules live here.

  • Glass and mirrors

    Chemically tough, mechanically fragile — and a mirror is not glass, which is where the standard household remedy goes wrong.

    Includes cases where the obvious answer is wrong

  • Cleaning metals

    Five metals that fail in five different ways: passive layers, amphoteric attack, plating thinner than a hair, and tarnish that is the metal itself.

    Includes cases where the obvious answer is wrong

  • Floors

    Four floor types whose shared enemy is water reaching somewhere it was never meant to go.

    Includes cases where the obvious answer is wrong

  • Leather and suede

    Two materials that are not versions of each other, and a care tradition that was written for a leather most people no longer own.

    Includes cases where the obvious answer is wrong

  • Worktops and stone

    Five surfaces that look alike under a kitchen light and share almost none of their rules — including one whose maker warns against the cleaners sold for the others.

    Includes cases where the obvious answer is wrong

  • Plastics, coatings and finishes

    The surfaces that fail invisibly and days late, because the damage is chemistry rather than a mark.

  • Sofas, carpets and soft furnishings

    The surfaces where the manufacturer decided at the factory what you are allowed to use, and where wetting is itself the risk.

    Includes cases where the obvious answer is wrong

Problems and what removes them

Start from the mark, the smell or the growth rather than from the object it is on.

  • Marks that are not dirt

    The stain that came back overnight, the brown ring, the dark line along the skirting board, the yellow patch shaped exactly like the rug. None of them respond to cleaning, and all of them have names.

  • Getting a stain out

    What each stain actually is, why the treatments differ, and the two cases where the usual instinct makes it permanent.

    Includes cases where the obvious answer is wrong

  • Showers, limescale and soap scum

    Two deposits that look the same, need opposite chemistry, and sit on the one material that both treatments destroy.

    Includes cases where the obvious answer is wrong

  • Mould, mildew and damp

    The one cleaning problem where every authority agrees the cleaning is the least important part.

    Includes cases where the obvious answer is wrong

  • Oil, grease and hands

    The soils that arrive on a person rather than on a surface — and why the thing that cleaned the part is the wrong thing for the hands that held it.

    Includes cases where the obvious answer is wrong

  • Dust, and what is in it

    The lowest-status cleaning task, and the conservation guidance treats it as preventive maintenance for three specific reasons.

Products, agents and equipment

What is in the bottle, what it does, and which surfaces it ruins.

Understanding what is happening

The mechanisms underneath. Read one of these and a hundred specific answers stop needing to be memorised.

  • What professional cleaners actually do differently

    Not stronger chemicals. Tiered maintenance, a machine with a stated speed, a pad with a stated colour, dilution nobody has to judge, and a written record of who did what.

  • Hygiene and disinfection

    Three operations wearing one word, an ordering that is not optional, and what the regulator actually says about bleach and mould.

    Includes cases where the obvious answer is wrong

  • The chemistry of cleaning

    Six mechanisms that between them explain most of what any cleaning product does, and most of what it ruins.

  • Abrasion and scratching

    Whether something scratches is not a property of the tool. It is a comparison, and the comparison is knowable before you start.

    Includes cases where the obvious answer is wrong

  • Solvents, and what they dissolve

    The regulator's list of what a solvent dissolves is also the list of what it damages. Nobody prints them side by side.

  • Why things are hard to clean

    Not what to use — why the last thing you tried did not work. Sixteen mechanisms that between them account for most cleaning that fails.

  • The microbiology of cleaning

    What is actually alive on a surface, why it persists, and why removing what you can see is not the same as removing what is there.

  • How cleaning got here

    Carbolic, cresols, quicklime and perchloroethylene — the substances domestic hygiene was built on, read from the hazard sheets rather than from nostalgia.

  • Conservation and specialist cleaning

    What people who clean irreplaceable things do differently — and which of it a household can use.

    Includes cases where the obvious answer is wrong