Cold water tank clean
- Fixed price
- Recurring
The short answer
Clean and disinfect storage tanks
- Price from
- £300.00
- Time on site
- 2 to 4 hours
What you get
Your cold water storage tank will be thoroughly cleaned, disinfected, and refilled, with a certificate of completion provided.
- Typical cost: £300 to £1,000
- Price depends on tank size and access
When do you need a Cold water tank clean?
You must check your tank regularly to ensure the water stays fresh. Consider booking a professional clean if:
- You see dirt, sludge, or slime inside the tank.
- The property has been empty for over a month.
- The water smells strange or looks cloudy.
- You have just finished major plumbing work.
- The law requires landlords to manage water safety.
- Business premises usually need a yearly inspection.
What happens on the day
A specialist will arrive to make your water system safe and clean. They will follow these steps:
- Turn off the water and drain the tank.
- Vacuum out any sludge or grit from the bottom.
- Scrub the walls to remove slime and scale.
- Add a strong disinfectant to kill all bacteria.
- Flush the system thoroughly with fresh water.
- Test the water to ensure it is safe to use.
- The job usually takes two to four hours.
How to prepare
- Clear space around the tank loft hatch
- Warn everyone that water will be off
- Fill some kettles or bottles for drinking
- Check that your stopcock works easily
- Move items stored directly under the tank
- Ensure the specialist has easy attic access
- Confirm where the outside drain point is
How to improve your result
- Fit a tight lid to stop dust
- Add insulation to keep water temperature right
- Check the tank for light leaks annually
- Replace old rusty metal tanks with plastic
- Ensure the overflow pipe has a screen
- Keep the area around the tank clean
Why it is useful day to day
A clean tank gives you peace of mind about your health. It prevents nasty germs from growing in your home.
- Protects your family from water-borne illnesses.
- Stops sediment from blocking your pipes and taps.
- Helps your boiler and showers last longer.
- Keeps your drinking and bathing water fresh.
- Ensures landlords stay on the right side of the law.
Why we ask these questions
The professional will check for harmful bacteria that could make you ill. They provide a certificate of chlorination once the work is done.
- Ask if the disinfection covers all your taps.
- Check if they include a Legionella risk assessment.
- Ensure the cleaners use approved safe chemicals.
- Ask how long you must wait to drink the water.
- Confirm the tank lid is fitted tightly afterwards.
Frequently asked questions
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