How do I stop my house smelling of dog?

Dog smell lives in soft materials and in the oil the dog leaves on them, so the fix is a list of washable things plus ventilation — not a plug-in air freshener.

Difficulty: beginner
Time: 1 hr 30 min
Read: 4 min

Short answer

Wash the bed, the blankets and the throws weekly, vacuum thoroughly twice a week with a clean filter, and open windows daily. If it still smells, the source is soft furnishings holding sebum, and those need an enzyme treatment rather than a scented spray.

You stop noticing your own house within about a minute of walking in, which is why dog smell is almost always identified by visitors rather than by owners. The smell itself is sebum — the oil dogs secrete onto their coat — transferring onto every soft surface and slowly oxidising. Anything that removes or replaces that oil works; anything that adds a scent on top does not.

What you'll need

A vacuum with a working filter
An enzyme cleaner
A washing machine
A dog bed with a removable, washable cover (optional)

Step by step

Get a second opinion on whether it smells.Ask someone who does not live there, or go out for two hours and pay attention on the way back in. Nose blindness makes self-assessment useless.
Wash the dog bed weekly, cover and insert.This is usually more than half the problem on its own. If the insert cannot be washed, the bed is the wrong bed — a removable cover matters more than any other feature.
Put everything the dog lies on into a weekly rotation.Throws on the sofa, the blanket in the car, the runner by the door. Having two of each so one is always in the wash is what makes the routine survive.
Vacuum twice a week and empty it every time.A full bag or bin makes a vacuum a smell distributor. Wash or replace the filter monthly — a clogged filter is why some houses smell worse after vacuuming.
Ventilate deliberately, not just occasionally.Fifteen minutes of windows open on opposite sides of the house exchanges the air completely. It costs almost nothing in heat and it does more than any product.
Treat carpet and upholstery with an enzyme cleaner.Enzymes break down the sebum and any accident residue, which is what the smell is actually made of. A carpet powder or a spray, then vacuum after it dries.
Deal with the dog rather than the house.Wipe paws and belly after wet walks, dry the coat properly rather than letting it dry on the sofa, and brush regularly. Wet dog smell is bacteria on a damp coat.
Check the ears and coat if the smell is strong.A genuinely strong, sweetish or yeasty smell from a dog can be a skin or ear infection rather than a cleaning problem. That is a vet question.
Wash hard floors with a neutral cleaner.Oil transfers to laminate and tile too, and builds a film that holds smell. Weekly mopping with a neutral floor cleaner, changing the water when it goes cloudy.
Stop adding scent on top.Plug-ins and sprays combine with the existing smell rather than replacing it, and the result is worse than either. Deal with the source and use scent only once it is gone.

Tips

Two dog beds, alternating, means the bed is always clean and the dog always has one. It is the single highest-value change.
A slightly damp microfibre cloth wiped over upholstery lifts a surprising amount of hair and oil between deep cleans.
If the smell is worst in one room, treat it as a specific source — a rug, a chair, or a spot the dog has had an accident on — rather than a whole-house problem.

Common mistakes

Relying on plug-in air fresheners — They add a fragrance to a smell that is still there. The combination reads as a distinctly worse smell to anyone visiting, and it makes finding the actual source harder.
Vacuuming with a full bin or a dirty filter — Fine particles and odour molecules pass straight through and are blown around the room, so the house smells stronger for an hour after cleaning than before.

If it doesn't work

Smell strongest when the heating comes on

Cause: Warm air is releasing odour from soft furnishings and carpet — Fix: Enzyme treat the carpet and upholstery, and ventilate while the heating runs rather than sealing the house up.

One specific chair or rug smells

Cause: Sebum accumulated in one favourite spot — Fix: Enzyme cleaner worked in thoroughly, or a washable cover on that item from now on.

Smell returns within days of a deep clean

Cause: The bedding rotation is not happening — Fix: Weekly wash of everything the dog lies on. Deep cleaning without that is a cycle you will repeat forever.

Wet dog smell that lingers for days

Cause: The coat dried slowly in the house — Fix: Towel dry properly at the door and keep the dog off soft furnishings until dry. Bacteria on a slowly drying coat produce the smell.

Questions people ask

How often should I bathe the dog?

Less often than people think — over-bathing strips the coat and the skin responds by producing more oil, which makes the smell worse. Most dogs need it every couple of months unless they have rolled in something.

Do air purifiers help?

With airborne particles and dander, yes. With smell absorbed into a sofa, no — the source is not in the air. Ventilation and washing come first, purification a long way second.

Will a carpet cleaning machine sort it?

It helps, provided you use an enzyme solution and extract thoroughly. Leaving carpet damp afterwards creates a musty smell on top of the dog smell, so drying properly matters.