People ask me this on the doorstep, usually half-apologising for the state of the thing before I’ve even seen it. Fifteen years, three kids, a dog, and now a carpet the colour of the pavement in the doorways. The honest answer is: sometimes yes, sometimes no, and the difference isn’t the age. Plenty of fifteen-year-old carpets clean up beautifully. Plenty of five-year-old ones are already finished. Age tells you less than people think.
What matters is what those fifteen years did to the carpet, and whether a clean addresses it or just wets it.
What does fifteen years do to a carpet?
Two things happen to a carpet as it ages, and they’re worth keeping apart, because only one of them cleans out. It collects soil, and it wears.
Soil is everything that lands on the pile and works into it: grit, skin, grease, spills, the fine grey traffic-lane film that builds up where feet go. Nearly all of it comes out with the right clean. That’s dirt, and dirt is my business.
Wear is a different animal. It’s the physical change to the fibre itself. Grit underfoot acts like sandpaper, cutting the pile tip by tip over the years, so the fibre goes dull and thin, and eventually bald in the lanes. Feet crush the pile flat. Furniture leaves dents that never quite recover. None of that is dirt, and none of it rinses out, because there’s nothing to rinse – the fibre is changed or gone.
The distinction that decides everything: wear or dirt?
Stand in the doorway of a well-used room and look at the traffic lane, the darker path worn from door to sofa. Ask one question: is it dark because it’s dirty, or dark because it’s damaged? A dirty lane is soil sitting on sound fibre, and it lifts to show the colour underneath. A worn lane is fibre that’s been abraded until it scatters light differently and reads as grey however clean it is. I can tell the two apart on my knees with a damp white cloth in half a minute. You can often tell for yourself by lifting a bookcase and comparing the protected patch beneath it to the open floor. If the hidden bit is bright and the lane stays dull after cleaning, that’s wear, and wear is permanent.
Can a clean bring an old carpet back, or just clean it?
A clean does more than clean on the right carpet, and less than you’d hope on the wrong one. It’s worth knowing which jobs it can turn around.
Crushed and matted pile is the good news. A carpet flattened by years of traffic hasn’t necessarily lost any fibre – the pile is bent over rather than worn away – and hot-water extraction with a bit of heat and grooming can stand a surprising amount of it back up. The heat relaxes the fibre and the pile lifts, and a groom sets it standing again while it dries. People are often shocked how much taller and darker a tired lounge reads after a proper clean, purely from the pile recovering its stand. There’s real life left in it.
Abraded pile is the bad news, and no machine reverses it. Where the fibre tips have been sandpapered away by fifteen years of grit, cleaning removes the grit but can’t grow the fibre back. The lane stays grey. Anyone who tells you a clean will restore a worn-out lane is selling you a clean you’ll be disappointed by.
What about the smell an old carpet holds?
Age brings odour as well as colour, and it hides deeper than the surface. Years of damp shoes, the odd pet accident, cooking, and a hundred small spills settle into the backing and the underlay beneath, which a surface clean never reaches. A good hot-water extraction pulls a lot of it up, and an enzyme treatment handles the biological side, but if the underlay itself has soaked up years of dog or damp, no carpet clean fixes that. The smell is under the carpet, not in it, and it drifts back the first humid week. I level with people about that before I start rather than after, because an odour job that half-works satisfies nobody.
What can go wrong when you wet-clean an old carpet?
Here’s the risk nobody warns the homeowner about: an old carpet can come apart when you wet it.
Most carpets are built in layers, with the tufts locked into a primary backing and a secondary backing glued on behind with a latex adhesive. That latex has a lifespan, and by fifteen years – sometimes less in a warm or damp room – it can be brittle and tired. Put water and heat through it and the bond can finally let go, the two backings separate, and the carpet ripples or peels away from itself. The clean didn’t cause the ageing. It arrived at the moment the glue was ready to fail, and got the blame.
Older carpets built on a natural jute backing carry a second wrinkle: soak them and the jute can bleed a brown tint up into the pile as it dries. It’s a known hazard of over-wetting an aged back, and one more reason a careful cleaner keeps an old carpet on the dry side.
Why I check the backing before I commit
Before I put a drop down on anything this age, I lift a corner and flex the backing between my fingers. A backing that’s supple is fine. One that cracks, or sheds a fine latex dust when I bend it, is a backing on its way out, and I’ll either keep the clean deliberately dry and low on heat to protect it, or tell the owner outright that it’s a gamble. Better a warning on the doorstep than a rippled carpet and an argument an hour later. The age on its own doesn’t worry me. The state of the glue does.
How do I decide on the doorstep whether it’s worth it?
By the time I’ve been in a room five minutes I usually know. I’m reading three things: the pile, the backing, and the lanes.
I look at the pile to see whether it’s crushed, which comes back, or abraded, which doesn’t. I flex the backing to feel whether it’s supple or brittle. And the lanes tell me whether I’m looking at soil or at wear. Add those up and the answer writes itself. A crushed but sound wool carpet with tired-looking but intact lanes is a fine clean waiting to happen. A thin polypropylene with bald traffic paths and a cracking backing is a job I could take your money for and leave you underwhelmed, so I don’t.
The carpet that surprised me
A woman in Catford had a wool carpet down since her kitchen was redone – sixteen years, she reckoned – and she’d called me to quote for cleaning it before she replaced it, half expecting me to agree it was done for. It wasn’t. Crushed flat, filthy in the doorway, dark as a doormat by the hearth, but the fibre under all that was sound wool with years left in it. After a clean and a groom and a slow dry, it looked a decade younger, and she cancelled the new carpet. That’s the job that makes this trade worth doing.
When should you spend the money on a new carpet instead?
Sometimes the kindest thing I can say is: don’t clean it, replace it.
When the lanes are worn through to the backing and the abrasion has spread across the whole floor rather than just the doorways, a clean is money spent to delay a decision you’ve already made. Add a failing backing to that and you’re wetting a carpet that wants a skip. I’d rather tell you so and lose the booking than take fifty quid to postpone the inevitable by a fortnight.
And here’s the opinion that annoys people: most of us replace exactly the wrong carpets. A cheap polypropylene looks tired at five or six and gets binned while it still had a bit of service left, and a good eighty-twenty wool gets thrown out at twelve when a clean would have bought it another five years. I’ve pulled perfectly serviceable wool out of skips outside houses in Palmers Green and Hanwell where the owners had decided fifteen years was too old, as though carpet were milk with a date on it. Buy wool you’ll keep and clean it properly, then stop replacing the good ones years too early. The carpet’s age is the least useful number in the room.
Does it matter whether you own or rent?
It changes the sum completely. If it’s your home and your carpet, the question is whether cleaning buys you enough good years to be worth the outlay against a replacement you’ll enjoy. If you’re a landlord, the maths is colder and the clean often wins on old carpet that a homeowner would bin. A tired-but-sound carpet cleaned between tenancies can be perfectly lettable for another cycle or two, and a clean at seventy-odd quid beats recarpeting a two-bed at several hundred every changeover. I clean the same style of worn hall carpet in a run of rented flats around Leyton every summer, and none of them would survive a fussy homeowner’s eye – but they pass a check-in, they come up fresh, and they see out another year of tenants. That’s a legitimate reason to clean a carpet you’d replace if it were under your own feet. The carpet doesn’t have to be good. It has to be good enough for the job it’s doing.
So the answer depends on which fifteen-year-old carpet you’ve got. Lift a corner and run a wet cloth down the lane. If the colour’s still under there and the backing still bends, there’s a clean worth having – and if it isn’t, no machine of mine is going to pretend otherwise on a carpet that’s earned its retirement.
