You climb into the loft to grab the Christmas decorations, check the insulation or investigate a leak and spot something you haven’t really thought about before.
Sitting in the corner is a large, old water tank.
It’s grey, heavy-looking and possibly hasn’t been used for years.
And then comes the Google search:
“Could my old water tank contain asbestos?”
The answer is: potentially.
Asbestos cement was historically used to manufacture cold water storage tanks and cisterns, and examples can still be found in the lofts and roof spaces of older UK properties today.
Some remain in use. Others were disconnected years ago and simply left where they were because removing a large, rigid tank through a small loft hatch isn’t exactly straightforward.
If you’ve discovered one, there’s no need to immediately panic.
But before you start moving, cutting or breaking it up, it’s important to establish exactly what you’re dealing with.
Why Was Asbestos Used in Water Tanks?
Asbestos was incorporated into numerous cement-based building products because it added strength and durability.
Asbestos cement products were used extensively throughout UK construction and included:
- Roofing sheets
- Flues
- Guttering
- Downpipes
- Wall panels
- Water tanks and cisterns
The asbestos fibres were bound within a cement matrix, creating a strong and relatively durable material.
Many of these products lasted for decades—which is precisely why they’re still being discovered in properties today.
Where Are Asbestos Water Tanks Usually Found?
In domestic properties, old cold water storage tanks are commonly found within:
- Lofts
- Roof spaces
- Cupboards
- Plant areas
They may have historically supplied water to bathrooms, heating systems or other services within the property.
As plumbing systems were modernised, some tanks became redundant.
Rather than removing them, previous owners or contractors sometimes simply disconnected them and left them in the loft.
Decades later, the new homeowner inherits a rather large mystery box.
How Do I Know If My Water Tank Contains Asbestos?
Unfortunately, you generally can’t confirm asbestos simply by looking at a tank.
Older asbestos cement tanks may appear:
- Grey
- Cement-like
- Rigid
- Heavy
- Moulded
But other materials can have similar appearances.
Age, manufacturer information and property records may provide clues, but where confirmation is needed, professional assessment and appropriate sampling can determine whether asbestos is present.
Don’t break off a corner yourself just to find out.
Creating damage to a suspect material rather defeats the point of trying to identify it safely.
Is an Asbestos Water Tank Dangerous?
The presence of an asbestos cement tank doesn’t automatically mean occupants of the property are in danger.
Asbestos cement is a bonded material, meaning asbestos fibres are incorporated into the cement matrix.
If the tank remains intact and undisturbed, the potential for fibre release is generally much lower than with more friable asbestos-containing materials such as some insulation products.
Risk can increase if the tank is:
- Broken
- Cut
- Drilled
- Smashed
- Heavily deteriorated
- Abraded
And unfortunately, those are exactly the activities somebody may be tempted to use when trying to get a huge tank through a tiny loft hatch.
Does an Old Asbestos Water Tank Have to Be Removed?
Not automatically.
As with many asbestos-containing materials, removal isn’t always required simply because asbestos is present.
An intact redundant tank that’s unlikely to be disturbed may potentially remain safely in place.
However, removal may be worth considering if:
- A loft conversion is planned
- New insulation is being installed
- Roofing works require access
- The tank is damaged
- The tank restricts usable loft space
- Major plumbing works are taking place
- The property is undergoing refurbishment
- Future access could disturb it
The important question isn’t simply:
“Does it contain asbestos?”
It’s also:
“What are we going to do around it?”
Why Are Redundant Tanks Often Left in Lofts?
There’s a wonderfully practical reason:
They don’t fit back through the bloody hole. 😂
Some tanks were installed before ceilings, roof structures or loft hatches were completed.
Once the property was finished, removing them intact could become considerably more difficult.
When a tank later became redundant, leaving it safely in place was sometimes easier than trying to get it out.
The problem arises when somebody years later decides:
“I’ll just smash it into smaller pieces.”
If that tank contains asbestos, that’s precisely what you don’t want to do.
Can You Break Up an Asbestos Water Tank to Get It Out?
This is one of the most important questions surrounding old loft tanks.
Breaking, smashing, sawing or grinding asbestos cement can increase fibre release.
That means a tank shouldn’t simply be attacked with:
- A hammer
- Angle grinder
- Saw
- Drill
- Power tools
just because it won’t fit through the loft hatch.
Professional removal requires planning the safest method based on the tank, its condition and the access available.
Sometimes the awkward location is actually the biggest challenge of the entire job.
What Happens During Professional Removal?
The precise approach depends on the property, but the process starts with understanding:
- What the tank is made from
- Its condition
- Its dimensions
- Where it’s located
- Available access
- Surrounding materials
A removal plan can then be developed to minimise unnecessary disturbance and allow the asbestos-containing material to be appropriately handled, packaged, transported and disposed of.
The aim is not simply to get the tank out.
It’s to get it out without turning an intact asbestos cement product into hundreds of damaged pieces unnecessarily.
What If the Tank Is Still Connected?
Don’t assume a tank is redundant just because it looks ancient.
Before removal, it’s important to establish whether it remains connected to:
- Water supplies
- Heating systems
- Overflow pipes
- Other plumbing services
A plumber may need to isolate and disconnect relevant services before asbestos removal proceeds.
Coordination between trades can prevent leaks, flooding and other avoidable complications.
What If the Tank Still Contains Water?
Again, this requires planning.
An old storage tank may still contain water even if you believe it’s no longer actively used.
Moving a full tank is obviously impractical, and drainage needs to be handled appropriately before removal.
Avoid drilling holes into a suspect asbestos cement tank simply to drain it.
If there’s uncertainty about its status, have the plumbing system assessed first.
What About Loft Conversions?
This is one of the most common reasons old tanks suddenly become a problem.
A homeowner decides to turn an unused loft into:
- A bedroom
- Home office
- Playroom
- Bathroom
- Additional living space
Suddenly, the redundant tank that’s sat quietly in the corner for 30 years is directly in the way.
Loft conversions can also disturb other potential asbestos-containing materials, including:
- Textured ceiling coatings
- Flue products
- Pipe insulation
- Service boxing
- Boards and panels
If you’re planning major work in an older property, identifying asbestos risks before contractors start opening up the space can prevent expensive surprises.
What About Installing New Loft Insulation?
Energy-efficiency improvements are another reason old tanks are increasingly being discovered.
When upgrading insulation, contractors may need access around areas that haven’t been touched for decades.
If an old asbestos cement tank is present, knowing about it before work begins allows the project to be planned appropriately.
It may be perfectly possible to work around it—or removal may make more sense while the loft is already being upgraded.
I’ve Bought a House With an Asbestos Water Tank – Should I Worry?
Not necessarily.
Finding an asbestos-containing material in an older property isn’t unusual and doesn’t automatically make the property unsafe.
What matters is:
- The condition of the material
- Whether it’s being disturbed
- Whether it’s still in use
- Future plans for the property
If you’ve recently purchased an older home and found a suspect tank, professional advice can help establish what it is and whether any action is necessary.
Can I Remove an Asbestos Water Tank Myself?
Asbestos cement is generally considered lower risk than some other asbestos-containing materials, and not all work involving it requires a licensed asbestos contractor.
However, that doesn’t mean removal is a straightforward DIY job.
You need to consider:
- Asbestos exposure controls
- Safe handling
- Confined loft access
- Manual handling
- Waste packaging
- Transportation
- Legal disposal requirements
- The possibility that the tank won’t fit through the available opening
Using a professional contractor avoids the temptation to improvise with power tools when the bastard inevitably gets stuck halfway through the loft hatch. 😂
How Is an Asbestos Water Tank Disposed Of?
Asbestos-containing waste can’t simply be placed in normal household rubbish or a general construction skip.
It requires appropriate:
- Handling
- Packaging
- Transportation
- Disposal
Waste must be taken through authorised routes in accordance with applicable asbestos waste requirements.
This is another reason professional removal can make the process significantly easier for homeowners.
How Much Does Asbestos Water Tank Removal Cost?
There’s no sensible universal price because every loft is different.
Factors affecting cost can include:
Tank Size
Larger tanks are naturally more difficult to handle.
Access
A large loft hatch and clear access route is very different from a tiny hatch above a staircase.
Tank Condition
Damaged material may require additional precautions.
Property Layout
Moving asbestos waste safely through an occupied property needs consideration.
Additional Asbestos
Other asbestos-containing materials may be identified around the work area.
Disposal Requirements
Transport and authorised disposal form part of the overall project.
A site-specific quotation provides a far more useful figure than an online “average cost” that knows absolutely nothing about your loft.
Should I Remove a Redundant Tank Before Selling My House?
You don’t necessarily need to.
However, an old asbestos-containing tank may be identified during the sale process and become something potential buyers ask about.
If you’re already:
- Renovating the property
- Clearing the loft
- Replacing the roof
- Upgrading insulation
it may be convenient to deal with it as part of those planned works.
Otherwise, understanding its condition and having accurate information about it can help answer buyers’ questions.
Frequently Asked Questions
Do old loft water tanks contain asbestos?
Some older cold water storage tanks and cisterns were manufactured from asbestos cement. Not every old tank contains asbestos, so assessment or testing may be required for confirmation.
What does an asbestos water tank look like?
They may appear grey, rigid and cement-like, but appearance alone cannot reliably confirm asbestos.
Is an asbestos water tank dangerous if left alone?
An intact asbestos cement tank that’s not being disturbed generally presents a lower risk than damaged or friable asbestos materials. Its condition and likelihood of future disturbance should still be considered.
Can I smash an asbestos water tank to get it out of the loft?
Breaking or cutting asbestos cement can increase fibre release and shouldn’t be treated as a convenient way to make a tank fit through a loft hatch.
Does a redundant asbestos water tank have to be removed?
Not automatically. If it’s intact and unlikely to be disturbed, management in place may be possible. Removal may make more sense where refurbishment, loft conversions or other works are planned.
Can asbestos water tanks go in a normal skip?
No. Asbestos-containing waste requires appropriate handling and disposal and shouldn’t be mixed with general building or household waste.
How much does asbestos water tank removal cost?
Costs depend on the tank’s size, condition, loft access, property layout and disposal requirements. A site-specific assessment is needed for an accurate quotation.
Should I have an old water tank tested before removing it?
If the tank is suspected of containing asbestos and its composition isn’t known, professional assessment or sampling can establish what you’re dealing with before removal begins.
Found a Suspected Asbestos Water Tank in Your Loft?
If you’ve discovered an old water tank while renovating, clearing your loft or planning a conversion, don’t start cutting or breaking it simply to get it out.
MD Environmental can help identify the material and advise on the safest and most practical way forward.
Our services include:
- Asbestos Sampling & Testing
- Asbestos Cement Removal
- Domestic Asbestos Removal
- Asbestos Surveys
- Safe Asbestos Waste Disposal
- Support for Loft Conversions & Refurbishment Projects
Whether the tank has been sitting untouched for decades or it’s suddenly blocking your plans for a new loft conversion, our experienced team can help.
Call: 0330 043 8778
Email: hello@md-env.com
Contact MD Environmental today for expert advice and a no-obligation quote.
