Chicken Shed Asbestos Removals

Collapsed chicken sheds with asbestos cement sheeting

Merryhill are in the final stages of removing / demolishing a number of derelict former chicken sheds and a large barn in Surrey. The former agricultural buildings are being cleared to make better use of the space.

Primarily constructed from corrugated asbestos cement sheeting, the multiple buildings were in varying degrees of disrepair, including some which had already collapsed and become overgrown

Given the size of the plot and with it being relatively remote, Merryhill utilised our own 8-man welfare unit which remained on-site for the duration of the project.

Merryhill Welfare Unit

Merryhill has worked on clearing the site of any asbestos cement contamination, picking through overgrown weeds and plants to remove all traces from those buildings which had already collapsed.

Barn with Asbestos Cement Sheeting

The barn remained intact, although in very poor condition. Merryhill also removed all asbestos cement sheeting from this building and carefully demolished the structure, separating all of the waste streams into separate skips.

In total, over 1000m2 of asbestos cement has been removed from the site and the land left completely cleared for our client.

Tower Block Plant Room Decontamination

Brunel House, Portsmouth

Merryhill recently completed a major licensed asbestos removal project in Portsmouth. Brunel House had been left empty and in a state of disrepair for a number of years.

Following a redevelopment plan, the former office block is now planned to be converted into apartments.

Merryhill were contracted by the developer to completely decontaminate the rooftop plant room which was contaminated beneath paintwork with asbestos lagging residues.

As the room was going to be reconfigured and new penetrations made to the room could not simply be re-encapsulated, but required a full removal and decontamination.

The project posed unique challenges as the plant room was located on the 12th floor. This meant transiting waste harder than on the ground. Also, to reduce the length of the transit routes, Merryhill opted for the use of a modular decontamination unit to be built near the working area, rather than transiting to the ground.

Wet Blasting

Merryhill has carried out a number of similar projects recently where previously encapsulated walls and ceilings needed to be asbestos-free prior to demolition.

For large-scale projects such as this one where over 150m2 of walls needed to be cleaned, Merryhill uses a technique called wet-blasting.

All of our operatives are trained to use this technique where a blast media (fine grit) and water are used to remove any contamination from solid walls, floors and ceilings.

The technique is much more efficient that wire-brushing on larger projects and means that any fibres can be suppressed throughout the process as water is used. During the project, Merryhill carried out 6 separate personal monitoring results which all showed the technique was safely below the control limit.

Victoria Cottage Hospital Project

Merryhill has recently completed a large licensed asbestos removal project at the former Victoria Cottage Hospital site in Emsworth, Hampshire.

Having been left vacant for some years, the site is now being redeveloped by Mountjoy to create a new GP facility for the local community.

Merryhill were contracted to the Demolition contractor for the project, a client we have worked very closely with over the past 12 months.

The project involved the removal of licensed asbestos, including asbestos insulation board and asbestos thermal insulation.

Victoria Cottage Hospital Asbestos

Merryhill has a huge range of experience and are able to carry out even the most demanding of projects. The thermal insulation (lagging) identified in the demolition survey was found throughout one of the buildings in various locations including floor ducts, pipe penetrations and residues to walls.

Merryhill Completes Large-Scale Asbestos Removal in Slough

Licensed asbestos removal project in Slough

Merryhill have just concluded a large-scale asbestos removal project in Slough. Having begun on site in April, the project consisted of the complete removal of all asbestos materials from 7 separate buildings.

The multiple occupant site was being prepared prior to demolition and the area redeveloped.

Working for a tier 1 main contractor, Merryhill have removed the following asbestos types from all of the buildings:

In addition to the asbestos, to facilitate the works, Merryhill also carried out a lot of soft-stripping to build our enclosures.

This included the removal of multiple layers of non-asbestos flooring, false ceilings, kitchen and bathroom fitted furniture and other decorative items such as ceiling baffles and ambient lighting.

Decontamination Service

Merryhill offer a wide-ranging service including hazardous waste removal and deep cleaning. One of the buildings contained animal waste and 7 separate areas required completely decontaminating. This work was able to be carried out by our teams and meant the client did not have to appoint another specialist contractor.

Hazardous waste and decontamination



Merryhill have just concluded a large-scale asbestos removal project in Slough. Having begun on site in April, the project consisted of the complete removal of all asbestos materials from 7 separate buildings.

The multiple occupant site was being prepared prior to demolition and the area redeveloped.

Working for a tier 1 main contractor, Merryhill have removed the following asbestos types from all of the buildings:

In addition to the asbestos, to facilitate the works, Merryhill also carried out a lot of soft-stripping to build our enclosures.

This included the removal of multiple layers of non-asbestos flooring, false ceilings, kitchen and bathroom fitted furniture and other decorative items such as ceiling baffles and ambient lighting.

Decontamination Service

Merryhill offer a wide-ranging service including hazardous waste removal and deep cleaning. One of the buildings contained animal waste and 7 separate areas required completely decontaminating. This work was able to be carried out by our teams and meant the client did not have to appoint another specialist contractor.

Asbestos lined duct and pipework

As a result of finding the additional ducts, Merryhill worked closely with the appointed analyst / surveyors to identify the extent of the duct system and carry out the necessary removal works.

In total, over 100 metres of duct were uncovered. Because the shuttering was below the concrete slab, care had to be taken when removing the AIB so as to minimise disturbance.

Once the liner had been removed, Merryhill then removed all debris from within the duct which was around 2 feet deep in some sections and carry out a complete decontamination.

Huge Fly-tip Site Cleared

Huge fly tip waste site

Merryhill offer a comprehensive fly-tip clearance service. With the ability to remove significant amounts of waste and carry out the necessary segregation, we are often called by councils and landlords to assist with hazardous rubbish clearance.

One particular fly-tip project carried out this quarter was on a completely different level. Imagine an amount of waste so large it could be seen from space!

The site in the West of England had been a fly-tipping hot spot for a number of years. The patch of disused land was quickly becoming an eyesore for local tenants using the adjacent land.

Over 400 tonnes of waste removed from site, including asbestos cement sheeting.

Fly tip waste

Waste Segregation

In addition to the asbestos cement, the waste was segregated into the following waste streams:

  • Hazardous waste
  • COSHH, including paint and oil
  • Mixed demolition & demolition waste
  • Compostable waste
  • Clean wood
  • Contaminated railway sleepers
  • WEEE waste
  • Car tyres / wheels
Hazardous waste segregation

Project Management

Merryhill managed the whole project, using our own personnel to dispose of the asbestos waste. Given the scale of the task, Merryhill utilised the support of a local plant hire company to supply and drive a wheeled backhoe excavator. The machine was used to lift some of the heavy items and navigate the site which was primarily off-road.

Once the entire site was cleared, Merryhill also organised for the road to be blocked using concrete barriers. In addition to the barriers, the entrance to the site was also trenched to prevent unauthorised vehicles to access the site.

The project showcased Merryhill’s ability to work not only with asbestos and hazardous materials, but also other waste streams. This particular project was completed within the available timescale set by the client.

Merryhill Completes Huge Asbestos Removal Project in Aldershot

Asbestos Removal at Louise Margaret Hospital

Merryhill recently concluded a huge licensed asbestos removal project at the former Cambridge Military Hospital in Aldershot.

Originally opened in 1897, Louise Margaret Hospital is one of many buildings at the site in Aldershot which had been left derelict for over 20 years.

Image courtesy of The Construction Index

The site has recently bee acquired by Weston Homes as part of a £60m residential redevelopment scheme.

The contract which Merryhill won by competitive tender was to remove all asbestos identified from multiple surveys over the years. A very detailed pre-tender site inspection was carried out as not all areas of the building had been accessed by surveyors. This posed a degree of risk as the specification was to remove all asbestos containing materials from the building.

Upon a detailed site inspection, Merryhill had the confidence to bid for the work to our client, R Collard.

Since beginning on-site back in April, Merryhill have worked hard to remove over twelve 40-yard skips of licensed asbestos waste from the building.

Amongst asbestos insulation board (AIB), cement and other small areas, the largest and most complex part of the project was to remove asbestos thermal insulation from an undercroft, running below the whole of the main building.

Loose asbestos lagging

At over 75 metres long with multiple lagged pipes and large amounts of debris to clear from the original dirt floor, the project required very careful planning.

Operations Manager for the project, Bryan Dart, commented, saying: “the Louise Margaret Hospital project was a huge success which showcased our ability as a company to carry out even the most challenging asbestos removal projects. As the building was in such poor condition when we arrived on site, there were a number of hurdles to overcome before we even began removing the asbestos.

Rotten and unstable floors were across most of the site which required propping to make access safe for our teams. Once secured, the huge job of clearing the undercroft began. With multiple pipes running the length of the building, these had been re-lagged on numerous occasions in the past with the debris just piled up beneath the floor. A huge credit to the team that carried out the works.”

Merryhill Complete Asbestos Removal Project in Portsmouth


Merryhill recently completed a large asbestos removal project at a former University of Portsmouth accommodation campus.

The Langstone campus in Milton, Portsmouth had a number of old accommodation blocks that required demolition prior to redeveloping the site.

Having been closed in 2018, the client had deemed the buildings to be beyond economical repair. To mitigate any risk of the buildings being misused while left unoccupied the University decided to demolish the buildings.

Merryhill were contracted to Hughes and Salvidge, the demolition contractor for the project.

Merryhill’s contract was to remove a number of both licensed and non-licensed asbestos materials from each of the 7 large blocks, including the clearance of a floor duct system. The floor duct network was found to contain asbestos insulation board (AIB) shuttering.

AIB High Level Fascia
AIB high level fascia panel behind UPVC cladding and bitumen felt

Along with the floor ducts, the other main notifiable asbestos had been found above all top floor windows by way of AIB fillet panels.

During the course of the removal process, it was found that further AIB was present to the external high level fascias around the perimeter of each building.

AIB fillet panel above window

Following the additional discovery of the fascia panels, Merryhill worked hard to ensure the overall project programme was not jeopardised.

Asbestos Removal Project in Hampshire

asbestos removal enclosure

Asbestos removal can be a difficult task in an unoccupied building, let alone a live working environment with adjacent offices in constant use. A recent asbestos removal project in Hampshire was just that.

The asbestos removal project in Hampshire involved the decontamination and removal of asbestos debris from seven rooms along a corridor prior to refurbishment. The concrete structural ceiling above a more modern suspended ceiling had once had asbestos insulation board (AIB) attached. Following an asbestos refurbishment survey, the ceiling void and modern grid system was found to have some AIB debris contamination.

The project required Merryhill to remove all the ceiling tiles, grid system and contaminated timbers above and environmentally clean the entire ceiling void area before the rooms could be reconfigured.

Works began by removing all of the ceiling tiles in each of the seven rooms, these were sprayed with a water surfactant mixture, prior to being wrapped in 1000-gauge polythene and disposed of as hazardous waste. The ceiling grid and lighting fixtures were cleaned and recycled for future use in the newly refurbished rooms once the asbestos had been removed. Upon removal of all suspended ceiling components and other items attached to the structural ceiling above, the contaminated timbers could then be removed.

Each of the timber battens were first encapsulated with ET150 paint and allowed to dry. This was to ensure any loose fibres were encapsulated prior to being pried away from the concrete ceiling above. All the contaminated timbers were placed on polythene sheets and sealed with cloth tape prior to disposal. Once all affected timbers were removed, each room then underwent a full environmental clean to remove any residual asbestos fibres.

Upon completion, the entire area was tested by a third party analytical company and a reoccupation certificate issued to the building owner.

In this project, Merryhill had to accommodate the needs of the client in ensuring some rooms on the opposite side of the corridor could be accessed during the works whilst ensuring adequate levels of segregation. Whilst this was not ideal as it made the working area slightly smaller, the enclosure was constructed in order to maintain access for workers and ensure our operatives could carry out the project in a safe manner.

Asbestos Removal Project in Surrey

Asbestos Floor Void

Merryhill was recently asked to look at an asbestos removal project in Surrey where ACMs had been discovered in a floor void. The contaminated area required all the asbestos to be removed prior to additional service pipes being run by other contractors.

Upon viewing the detailed asbestos refurbishment survey carried out by our surveying division (MATAC), Merryhill was successful in securing the project to remove asbestos pipe lagging and other asbestos residues.

Asbestos Pipe Lagging

Totalling an area of 150m2, this was only part of a much larger floor void that was also contaminated with asbestos, but outside of the project scope.

Prior to commencing work, our asbestos removal team had to seal the area above floor level to create the working enclosure. Once this had been built, then the necessary floor boards were removed in order to access the floor void below. Once the necessary floorboards were removed, the team incorporated the working area into the enclosure, sealing it from the rest of the floor void with 1000 gauge polythene.

Asbestos Lagging in Floor Void

Once the working area had been constructed and sealed, the team then carried out the asbestos removal and environmental cleaning of the contaminated area. All pipe lagging was removed using the SafeStrip RedBox injection system. All loose debris was sprayed with a water surfactant and either vacuumed using H-Class machines or placed directly into appropriate waste bags and sealed. As there were a number of disused pipes and other construction debris within the floor void, this was also disposed of as contaminated waste.

As the remainder of the floor void was to remain untouched, a semi-permanent barrier was constructed using 1000 gauge polythene and Corex. This barrier was installed to ensure the cleaned area did not become contaminated once again by the remaining floor void. As part of the clients’ asbestos management plan, the sealed area of cleaned floor void will be tested on an annual basis to ensure a tight seal remains. If future works are to take place within the floor void, then the client can be assured the cleaned area will not require re-visiting.

This staged approach to having asbestos removed from larger areas can be an affordable option to some clients, especially if the remaining materials are in a good condition and pose a low risk. In this case, it is the intention of the client to have the remaining areas completed at a later date.

Asbestos Demolition Survey in London

Asbestos Survey London

Prior to being redeveloped, a former factory required an extensive asbestos refurbishment and demolition (R&D) survey. Originally built in the early 20th Century, the factory in West London ceased operation in 2014. Since its’ closure, the site had gradually been cleared, ready for being transformed into a mixed used development consisting of commercial and residential properties.

Approached by our client to carry out a fully intrusive survey, the project posed some challenges which needed to be overcome. Given the scale of the buildings, it required not only a lot of manpower, but also coordination to ensure all areas were thoroughly covered. In addition to this, the main building needed to be split in terms of the survey required as only one part was covered by our clients’ scope of works, the other was being dealt with by another contractor. This meant an imaginary line was placed through the building, meaning Merryhill’s work was to only be carried out strictly on one side.

Various other buildings were part of the scope, including offices, warehouses and a large house. In total, over 50,000m2 of building were covered in producing the final report where 341 samples were carefully taken and sent for analysis in a laboratory, 96 returning a positive result. All types of asbestos were discovered upon analysis.

Speaking on behalf of Merryhill, Adrian Lynn, Surveyor who worked on the project said: “The project was a challenge, firstly given the scale of the buildings as the site is huge so a lot of planning was involved prior to getting on site to ensure the best use of time. It was a slightly odd situation with the imaginary line across the main building as not all of the site was being demolished. The project highlights Merryhill’s ability to cope with large, complicated surveys involving access equipment across multiple buildings of varying use.”