People ask us this constantly, usually phrased as an apology — how bad is it, how long has it been, should we have called sooner. The honest answer is that there is no single interval, because a deep clean is not one job. It is several jobs on different clocks, and lumping them together is what makes people either overpay for work that did not need doing yet or leave something until it is twice the effort.
Here is how the clocks actually run in a normal household.
The oven is every three to six months if you cook most days, and once a year if you mostly do not. The reason to stay ahead of it is chemical rather than cosmetic: baked-on grease carbonises in layers, and each new layer bonds harder than the last. Cleaned twice a year, an oven is a straightforward job. Left for three years, it needs multiple applications and sometimes still does not come all the way back.
Extractor filters are every three months, and they are the most neglected item in the average kitchen by a wide margin. A saturated filter stops pulling air, which means the grease it is no longer catching goes onto your cabinets and ceiling instead. That is the real cost — the filter is cheap to clean, the cabinet tops are not.
Bathroom grout and limescale run to about six months in Louisville, and rather less if you are on well water out in Harrison or Bullitt County. Scale is progressive: a light film comes off with a household descaler, but left long enough it builds into a crust that etches the chrome underneath, and at that point cleaning it perfectly still leaves a dull patch. The moment to act is when the taps stop looking shiny after they are dried, not when the deposit is visibly white.
Inside the fridge is every three months, plus immediately after anything leaks. The seal matters more than the shelves — it is a rubber concertina that holds crumbs and moisture, and it is where mould appears first in almost every fridge we open.
Upholstery and mattresses are every six to twelve months for a vacuum and a proper going-over, more often with pets. Soft furnishings hold dust in a way hard surfaces do not, which is the thing worth knowing if anyone in the house has allergies that seem to get worse indoors.
Behind and under the large appliances is annual. The gap beside the cooker collects a remarkable amount, and the coils at the back of a fridge get a felt of dust that makes the motor work harder and run warmer. It is one of the very few cleaning jobs with an actual energy-bill argument behind it.
Skirting, trim, door tops and light fittings are roughly twice a year. They do not get dirty quickly, but they get dirty invisibly, and the difference in a room once they are done is larger than anyone expects for something nobody consciously looks at.
Windows, sills and tracks are twice a year — ideally spring and autumn, before and after the seasons that put the most onto them.
The practical way to use all this is not to run a calendar. It is to notice the early signals: the kitchen smells faintly of cooking a day later, the taps dry dull instead of shiny, the shower screen looks cloudy when it is dry, dust is visible on the top of a door frame from across the room. Each of those means one specific thing is due — not the whole house.
That is also why we quote deep cleans by what is actually needed rather than selling a fixed package. Sometimes a home wants one full reset and then a regular schedule holds it there indefinitely. Sometimes it is just the oven and the bathroom, twice a year, and everything else is genuinely fine.
Want an honest read on where your place stands? Call Workforce Industries at (407) 748-9875 for a free walkthrough anywhere in the Louisville area. We will tell you what needs doing now, what can wait, and what does not need doing at all.