*Updated March 2025
The dangers of a leaking asbestos garage roof pose significant risks to property owners, their families, and the environment if not addressed.
As the UK’s leading experts in asbestos garage roof replacements, we’re here to inform you know about the dangers associated with leaking asbestos roofs, and why swift action is necessary.
Whether you’re considering an asbestos garage roof replacement, exploring the costs of replacement, or learning more about asbestos roofing to protect yourself from the dangers of asbestos roof leaks, understanding the risks is crucial.
Small leaks can lead to big problems! Read on to learn more.
How dangerous is a leaking asbestos roof?
Many garages in the UK built before the 1990s feature corrugated asbestos cement sheets in their roofing. While asbestos was once a popular building material due to its durability and affordability, its hazardous nature is now widely recognised.
Asbestos cement roofing is not entirely waterproof – it is a porous material that can absorb water over time.
Once a leak develops, the risks increase significantly. Moisture intrusion can compromise the structural integrity of the garage, damage stored belongings, and, most critically, lead to the release of hazardous asbestos fibres if the material deteriorates.
Health Hazards
A leaking asbestos garage roof is more than an inconvenience; it’s a silent threat to health that can have far-reaching consequences. As water seeps into asbestos cement, it weakens the material’s structure and increases the risk of harmful asbestos fibres becoming airborne. These microscopic fibres are invisible to the naked eye but carry immense health risks. Here’s how:
What makes asbestos exposure particularly insidious is its latency period. Symptoms of related diseases can take decades to appear, often emerging when it’s too late for effective intervention. This underscores the importance of addressing a leaking asbestos garage roof immediately, even if the damage seems minor.
Structural Damage
Beyond health concerns, a leaking asbestos roof poses a significant threat to the structural integrity of your garage. Water infiltration can accelerate the degradation of asbestos cement, causing:
Warping and Cracking
Continuous exposure to moisture weakens the cement matrix, leading to cracks and warping of the roof sheets.
This not only diminishes the roof’s ability to protect against the elements but also creates more points of entry for water, compounding the damage.
Roof Collapse
In extreme cases, prolonged neglect of a leaking asbestos roof can result in sections of the roof collapsing.
This creates immediate safety hazards and escalates the risk of asbestos fibre release.
Costly Repairs or Replacement
Structural damage from leaks often necessitates more extensive repairs or even full roof replacement.
What begins as a minor issue can quickly spiral into a costly project if left unaddressed.
A compromised roof also impacts the functionality of your garage, exposing stored items to water damage and reducing the overall value of your property. Acting promptly can save you significant expenses and prevent unnecessary risks.
Environmental Risks
The dangers of a leaking asbestos garage roof extend beyond your property, posing environmental threats that can persist for decades. Asbestos fibres, once released, are non-biodegradable and highly resistant to environmental breakdown. Here’s what could happen:
Soil Contamination
Water carrying asbestos particles can seep into surrounding soil, embedding hazardous fibres into the ground.
This creates long-term contamination that is costly and complex to remediate.
Water Pollution
Leaching asbestos can also infiltrate water systems, particularly if the garage is near a drainage area or water source.
Contaminated water poses risks to wildlife and can spread the problem far beyond the initial site.
Airborne Spread
Improper handling of a leaking asbestos roof or ignoring the issue can result in fibres becoming airborne during structural degradation.
Once airborne, these fibres can travel significant distances, potentially affecting neighbouring properties and exposing others to the risks.
Environmental contamination from asbestos is not only harmful but also heavily regulated. Failing to address a leaking asbestos roof responsibly can lead to legal repercussions, including fines for non-compliance with UK asbestos safety regulations.
Why Prompt Action Matters
A leaking asbestos garage roof is a ticking time bomb.
Ignoring it endangers your health, compromises the safety of your property, and threatens the environment.
Taking swift and professional action to address the issue not only mitigates these risks but also ensures compliance with UK laws regarding asbestos handling and disposal.

Why You Shouldn’t DIY
⚠️Attempting to fix or replace a leaking asbestos garage roof yourself is not only dangerous but also illegal without proper training and licensing.
Asbestos removal and disposal are strictly regulated in the UK to prevent exposure and contamination. This is because DIY attempts often lead to:
- Improper handling of asbestos sheets
- Unintentional release of fibres
- Expensive fines for breaching safety regulations
This is why it’s essential to engage professionals like Excel Asbestos for safe and compliant asbestos garage roof removal and garage roof replacement asbestos services.
Solutions for a Leaking Asbestos Garage Roof
Asbestos Garage Roof Replacement
Replacing your old, leaking asbestos roof with modern materials is the safest and most effective solution. At Excel Asbestos, we specialise in asbestos garage roof replacement, ensuring safe removal and installation of a new garage roof. Options include:
In rare cases, minor leaks can be addressed with temporary garage roof repair. However, repairs to an asbestos garage roof are very difficult as they must always be conducted by licensed professionals. For lasting peace of mind and safety, full garage roof replacement is usually the best option before things get worse.
Asbestos Disposal
Safe and legal disposal of asbestos materials is crucial to prevent environmental contamination. Our expert team ensures all removed asbestos is transported and disposed of at licensed facilities.
Get in Touch
When dealing with a leaking asbestos garage roof, you need a trusted partner who prioritises safety and compliance. Excel Asbestos offers:
- Expertise in handling asbestos removal and replacement
- Affordable solutions tailored to your needs
- Professional service from licensed specialists
- Comprehensive coverage across the UK
Speak to our expert team today by phone or email.