Guide
Hard water and limescale in North Kent
The chalk under North Kent is why your kettle furs up and your shower screen never quite looks clean, and it's where the name Chalkdown comes from. Here is what limescale actually is, what removes it, and when it's worth handing the job over.
Reviewed August 2026
Why is the water hard in North Kent?
North Kent sits on chalk, and water that moves through chalk carries dissolved minerals with it. That's what hard water is. When it dries or gets heated it leaves those minerals behind as limescale on taps, shower screens and inside kettles and ovens. It's a feature of the ground here, not a fault in your plumbing.
It's the one thing every home in Greenhithe, Swanscombe and Gravesend has in common, and it's why half our checklist is built around taps, screens and kettles.
If you'd rather skip to the money: a single oven clean is £55, a double is £75 and a range cooker is £95. A one-off deep clean of the whole property starts at £110 for a studio, and regular cleaning is £19 an hour. Everything else on this page is how to do it yourself.
What does limescale actually do?
It builds up rather than eats away. On taps and screens it's a cosmetic film that makes a clean bathroom look dirty and a polished surface look tired. Inside a kettle it coats the element. On oven glass it dries in along with steam and grease, which is why those two have to be tackled in the right order.
| Where it shows up | What you see | What shifts it | What makes it worse |
|---|---|---|---|
| Taps and mixer spouts | A chalky crust round the spout and base, and dull patches on the chrome | An acidic descaler held against the metal long enough to work, then a rinse and a dry buff | Scouring pads and knives, which scratch the plating and make the next build-up worse |
| Shower screens and tiles | A grey film that makes clean glass look permanently smeared | A descaler or white vinegar left to sit, worked with a soft pad, then rinsed and dried | Leaving it wet. Water left on the glass is what deposits the next layer |
| Inside the kettle | White flakes in the water and a rough coating on the element | A citric acid or vinegar solution, left to stand, then boiled off and rinsed twice | Cleaning products that are not food safe. A kettle needs a descaler meant for kettles |
| Oven door glass and racks | Cloudy glass and a milky bloom on the racks where steam has dried on | Degreasing first, then descaling, because grease sits on top of the scale | Doing it in one pass with a general spray, which lifts neither properly |
What actually removes limescale?
Acid does. Limescale dissolves in mild acids such as white vinegar, citric acid or a proprietary descaler, which is why an all purpose spray shifts the grease around it and leaves the scale exactly where it was. The other half of the job is contact time. The acid has to sit on the deposit long enough to work.
- Clear the grease first with an ordinary cleaner, because acid can't reach scale that's sitting under a film of grease.
- Apply the descaler and then leave it alone. A cloth or a bag held against a tap keeps it in contact instead of running straight off.
- Work it with a soft pad and keep scourers and blades away from it. Scratched chrome and scratched glass hold the next build-up far better than smooth ones do.
- Rinse thoroughly, then dry the surface off with a cloth so the water leaves nothing behind.
- Keep it dry between cleans. A squeegee on the screen after a shower does more for glass than any product does.
Two safety points that matter more than any technique. Never mix cleaning products, and never mix an acid with bleach. Test any descaler on a small hidden area first, and keep acids off natural stone, marble and anything the manufacturer tells you to keep them off.
When is it worth booking someone instead?
When the job needs equipment or time you'd rather not spend. A single oven clean is £55, a double is £75 and a range cooker is £95. A one-off deep clean of the whole property starts at £110 for a studio. Regular cleaning at £19 an hour is what stops scale coming back at all.
Scale matters most at the end of a tenancy, because tired-looking taps and a cloudy screen read as unclean to an inspection even when the property is spotless. Descaling sits inside our standard checklist on every end of tenancy clean and every deep clean. If you want the numbers side by side, the guide to end of tenancy cleaning costs in Kent has the full ladder.
Want the scale dealt with properly?
Tell us which rooms are worst and how big the property is. We answer every enquiry, every price includes products and equipment, and there's no call-out fee anywhere we cover.