Asbestos Encapsulation

Last Updated on 22nd November 2022 by

What is asbestos encapsulation?

Asbestos encapsulation is a process which involves leaving the asbestos material in place and treating it with a flexible sealant that forms a protective layer between the material and the indoor environment.

This procedure ensures that any future wear and tear won’t cause any asbestos fibers to be released into the air.

Encapsulation of asbestos materials is normally done by trained contractors who have received the appropriate training on the handling of asbestos and who also hold a license.

Methods used to encapsulate asbestos vary depending on the type of material, but may involve a spray sealant, paint or boarding over the area.

Should I remove asbestos or encapsulate?

Most people think that asbestos must always be removed, but this isn’t always necessary if the asbestos material happens to be in good condition as it poses very little risk.

It is usually easier, safer and cheaper to leave asbestos that’s in good condition where it is and encapsulate it to prevent from any damage or wear and tear in the future.

However, if there is going to be extensive damage to a property caused through renovation, DIY or demolition, then the asbestos will have to be removed entirely BEFORE any structural work commences.

Removing asbestos is much more costly than encapsulation, but can’t be avoided in certain circumstances.

If in doubt on whether you need to remove asbestos or encapsulate it, then seek the advice of a professional who will be able to advise you on the best solution.

Remember that asbestos is only dangerous when it becomes damaged as that’s when the deadly fibers are released into the air that can cause asbestos diseases like lung cancer and mesothelioma.

So encapsulation of asbestos materials will ensure that the asbestos remains in good condition and it cannot deteriorate over time.

How much does asbestos encapsulation cost?

Before you consider asbestos encapsulation, it is recommended that you get an asbestos surveyor to come and take a look at the suspected asbestos material to identify whether it is indeed asbestos or not.

This will usually involve them carrying out a full survey of the area, taking a sample and having it tested in a laboratory.

An asbestos surveyor will be able to correctly advise on the best way forward if the material does test positive for asbestos, which will all be dependent on the location and condition of the asbestos.

If asbestos encapsulation is advised as the best option, then you will be looking at around £8+ per square metre as opposed to £50+ per metre to remove the asbestos.

Are there any disadvantages to encapsulation?

Although the option to encapsulate asbestos is often the preferred solution for various reasons, unfortunately, it also has it’s drawbacks too.

For instance, it may be necessary to reapply the asbestos encapsulation substance after a few years to ensure the asbestos material underneath remains safe.

Another disadvantage of asbestos encapsulation is that if the asbestos material should be either deliberately disturbed through demolition or accidentally through drilling for instance, then it can’t prevent the asbestos fibers from spreading.


Duty holders and employers have a legal responsibility to manage asbestos in their properties, carrying out an asbestos survey in their buildings so as not to put employees at risk.

So make sure you contact our Armco office to arrange asbestos testing or an asbestos survey before it’s too late! 

Whether you need an asbestos management survey or a refurbishment/ demolition survey, contact us at 0161 763 3727 or by visiting https://www.armco.org.uk/

Finally, for all your asbestos training needs call 0161 761 4424 or visit https://www.armcoasbestostraining.co.uk/to book an asbestos awareness training course.

Latest News...
25th September 2025Last Updated on 3rd October 2025 by Phil Collins Walk into any British structure built before 1980, and there is a good chance you are sharing space with one of the deadliest materials ever used in construction. Amosite (often called “brown asbestos” for its distinctive greyish-brown colour) lurks behind walls, around pipes and in ceiling […] [...] Read more...
10th September 2025Last Updated on 3rd October 2025 by Phil Collins Why was asbestos used in roof tiles? Asbestos was originally prized for its heat and fire resistance, as well as durability, and was therefore used in the construction of properties all across the UK. During the 1950s and 1960s, asbestos was extremely popular when building new […] [...] Read more...
22nd August 2025Chrysotile (or white asbestos as it is commonly called) is said by experts to be the most popular type of asbestos used throughout the 20th century. This mineral has curly, flexible fibres and made up a huge majority of all the asbestos used before we fully understood how dangerous it was. What Made It So […] [...] Read more...
22nd August 2025If you are looking for asbestos training, you have probably got questions about what is available and what you actually need. At Armco Asbestos Training we have been helping people get the right training for years, and we also know it can seem a bit overwhelming at first. Asbestos Awareness Training (the basics) A good […] [...] Read more...
22nd July 2025It has been a while since we have covered this crucial topic, so we thought it was time for a refresh. With over 20 years of experience as asbestos surveyors and consultants, we still get asked the same fundamental question: “How do I know if it’s asbestos?” The honest answer? It is trickier than most […] [...] Read more...
11th July 2025At Armco Consultants, one of the most common questions we get asked is does asbestos affect dogs and cats and frankly, it is one that more pet owners should be thinking about. The answer is yes, asbestos can absolutely harm your pets, and in some ways, they are more vulnerable than we are. Why Pets […] [...] Read more...

Published Sep 16, 2019