Trusted by Amazon
Aerial view of an industrial warehouse with a sealed ASL roof

Seal Your Asbestos Roof. Skip the Cost and Upheaval of Full Removal

With up to 20 years' warranty and fully HSE compliant, asbestos encapsulation offers a safer, faster and more cost-effective solution - while keeping your business operational.

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Trusted by

Amazon

30+ years in Commercial

Roofing

Warranties up to

20 years

CHAS & Constructionline

Accredited

Hole in an ageing asbestos cement roof sheetMoss and lichen growth across a corrugated asbestos roof
Standing water in the valley gutter of an ageing asbestos roof

The problem

Extend the life of your asbestos cement roof - without the cost and disruption of replacement

Our asbestos encapsulation system provides a safe, compliant and cost-effective way to protect ageing asbestos cement roofs and extend their working life by up to a further 20 years.

Rather than removing and replacing the existing roof, we carefully clean, prepare and encapsulate the asbestos cement sheets, creating a durable, weatherproof and leak-resistant barrier that protects the roof for years to come.

We use a specialist closed-head cleaning system and steam technology to safely prepare the roof surface, with waste captured and passed through advanced filtration to minimise the risk of contamination throughout the process.

Once prepared, we apply our Nano-Tech Advanced Coating system, sealing the asbestos cement and providing long-lasting protection against weathering, water ingress and further deterioration.

The solution

More than just encapsulation

We can also carry out associated roof works as part of the same project, helping you deal with multiple issues in one planned programme. This can include:

  • Rooflight treatment and refurbishment
  • Replacement and repair of deteriorated fixings
  • Removal of redundant plant, equipment and services
  • Localised repairs and remedial works
  • Protective coating and encapsulation
  • Roof cleaning and preparation

This means you don't have to coordinate multiple contractors to get your roof back into a safe, serviceable and weather-resistant condition.

Sealed asbestos roof with protective coating

What we do

Two ways to deal with an asbestos roof

ASL also treats metal and cladding roofs, cut edge corrosion, gutters and flat roofs. If your site has more than one roof type, we can handle all of it.

Asbestos Encapsulation

Asbestos Encapsulation

Seal the roof in place with a durable coating system. No removal, no disposal, far less cost and disruption.

Asbestos Encapsulation with Solar

Asbestos Encapsulation with Solar

Seal the roof and turn it into an energy asset in one project. See the next section.

Thinking about over-cladding instead?

Over-cladding fits a new roof over the asbestos rather than treating it - usually more structural work, a higher risk of disturbing the fibres, and a shorter lifespan than encapsulation. Book a free roof survey and we'll tell you honestly which is right for your building.

Book A FREE Roof Survey

The clients that trust us

Asda
B&Q
Boots
Sports Direct
Tesco
Aldi
Amazon
Octopus Energy
Co-op
Currys
Amcor
Anthology
Brudenell Social Club
Safestore
TeamSport
UK Atomic Energy Authority
Uniqlo
City, University of London
Wren Kitchens
Associated British Ports
Mamas & Papas
Newly Weds Foods
Primark
Red Kangaroo
Royal Household
Carphone Warehouse
Elsons
Fisher Research Ltd
L'Oréal
Lush
Homebase
Howdens
Kraft
Kubota
Leeds City College
Asda
B&Q
Boots
Sports Direct
Tesco
Aldi
Amazon
Octopus Energy
Co-op
Currys
Amcor
Anthology
Brudenell Social Club
Safestore
TeamSport
UK Atomic Energy Authority
Uniqlo
City, University of London
Wren Kitchens
Associated British Ports
Mamas & Papas
Newly Weds Foods
Primark
Red Kangaroo
Royal Household
Carphone Warehouse
Elsons
Fisher Research Ltd
L'Oréal
Lush
Homebase
Howdens
Kraft
Kubota
Leeds City College

SOLAR OVER ASBESTOS

Turn a Problem Roof Into One That Pays You Back

Most contractors will tell you that you cannot put solar on an asbestos roof. ASL can. Using our own patent pending frame and bolt system, we fit a solar array over a safely sealed asbestos roof, so the same roof that was a liability starts cutting your energy bills.

Why ASL

Why commercial property owners choose ASL

We manufacture and install our own systems

Unlike many asbestos encapsulation contractors, ASL manufactures the systems we install. That means we have greater control over the products, the quality of the installation and the overall cost of your project.

Because there’s no third-party manufacturer or middleman adding another margin, we can offer a more cost-effective, streamlined solution from manufacture through to installation.

One company. One system. One accountable team.

Our in-house expertise means the system we manufacture is the system we install - giving you greater consistency, better control and a more competitive solution for your roof.

Trusted by major national operators

ASL has experience delivering roofing and asbestos encapsulation projects for major national operators, including Amazon, as well as large-scale retail and industrial environments.

Working in these high-demand environments means understanding that safety, compliance, quality and minimal disruption aren't optional - they're essential.

Our experienced teams are used to working around live operations, strict site requirements and demanding project schedules, delivering solutions that keep your building protected while helping your business keep moving.

If we can work around the demands of a national operator, we can work around yours.

Guarantees up to 20 years

Work backed for the long term, in writing, not a vague promise.

Fully accredited

BBA, CHAS, Constructionline, CSCS, IPAF, NEBOSH and NVQ.

Around 30+ years in the industry

Three decades treating and extending commercial roofs across the UK.

Free, no obligation survey

A qualified assessment and a fixed quote, with no pressure and no cost to you.
Roofing work in progress

How it works

From survey to a protected roof - in five straightforward steps

We keep the process simple, transparent and managed from start to finish. Our team handles the detail, so you know exactly what to expect at every stage.

01

Free roof survey

We visit your site to assess the condition of your roof, identify any areas requiring attention and understand your requirements.

02

Proposal & quotation

You'll receive a clear proposal outlining the recommended works, costs and timescales, including any applicable tax relief opportunities that could help reduce the overall cost to your business.

03

Prepare, manufacture & install

Once you're happy to proceed, we'll arrange a pre-start meeting and agree the programme with you. Our experienced team then carries out the works using systems manufactured by ASL, with progress and quality checked throughout.

04

Completion & guarantee

Once the work is complete, we'll provide your O&M documentation and project records, including your applicable guarantee and details of the system installed.

05

Ongoing maintenance

A roof needs looking after to perform at its best. We can provide a tailored maintenance schedule and ongoing inspection programme, with costs agreed as part of the project if required.

One team. One process. One point of contact.

From the initial survey through to installation and ongoing maintenance, ASL manages the entire process, giving you a straightforward route to a safer, longer-lasting roof.

PROOF

The proof is on the roofs we have already done

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ASL sealed our warehouse roof in place. No shutdown, no drama, and a fraction of what removal would have cost.
Facilities Manager
Distribution centre, Yorkshire
Straight-talking team. They diagnosed the problem, gave us a fixed quote, and delivered on it.
Estates Director
Manufacturing site, Midlands

Trusted by leading companies and businesses nationwide

Amazon
BBA
CHAS
NEBOSH
CSCS
IPAF
Constructionline
NVQ

FAQ

The questions commercial owners ask us

In most cases, yes. Asbestos cement buildings are common problems and most people assume they need to be removed and replaced. Whilst true that asbestos can be dangerous, when treated correctly it can then be treated again and again with the same, or different techniques. Cracks, holes and roof lights can be restructured and sealed, or individual sheets replaced with a GRP profile pieces to allow for full encapsulation.

A smarter alternative to roof replacement

Encapsulation can help you:

Extend your roof's working life by up to 20 years
Avoid the significant cost of full roof replacement
Minimise disruption to your operations
Retain your existing roof structure
Improve weatherproofing and resistance to leaks
Address ageing rooflights, fixings and redundant equipment
Manage asbestos cement safely and compliantly
Give your building a longer-term maintenance solution

For commercial and industrial property owners, it can be a practical and cost-effective alternative to replacing an otherwise serviceable roof.

Think your asbestos cement roof is reaching the end of its life?

Talk to ASL about a free roof survey and find out whether encapsulation could extend the life of your existing roof.

Book A FREE Roof Survey

Get Your FREE Roof Survey

Takes 30 seconds.

Your detailsRoof details

Step 1 of 2. No obligation

Nothing to lose

The survey is free, the quote is fixed, and there is no obligation to go ahead. You get a clear picture of your roof and what it would cost to fix, from an accredited team trusted by Amazon.

Contact Us

0800 342 3858

Book Your FREE Roof Survey

Tell us about your roof and we will arrange a free, no obligation survey. Most enquiries get a call back within one working day.