Skip to main content

Survey-Led RAAC Remediation, Strengthening and Removal

Suspected or confirmed RAAC? Starfish Construction provides survey-led assessment, structural strengthening, safe removal and replacement services across the UK. Our integrated team coordinates design, access, asbestos management, construction and handover — helping clients protect occupants, maintain operations and make evidence-based remediation decisions. We support building owners and managers in understanding risk and compliance, while protecting building performance and occupant safety through specialist RAAC removal, surveys and strengthening across UK commercial and education properties. Starfish Construction delivers a full suite of options and reinforced autoclaved aerated concrete solutions to remediate, maintain, and manage risks, UK-wide for commercial, public-sector, and educational buildings.

If RAAC is suspected or has been identified within your building, our specialists can provide advice, surveys and reporting to help you understand the most appropriate next steps. 

Speak to our RAAC team
Please type your First Name.
Please enter a valid email address
Invalid telephone number.
Please enter a valid enquiry message using normal words and sentences
Invalid Input
Starfish Construction employee carrying out a comprehensive investigative roof survey.

Integrated RAAC Assessment, Design and Remediation

Every building affected by RAAC presents different structural, operational and compliance challenges. Starfish Construction brings together technical surveying, intrusive investigation, structural assessment and design to establish the condition of the RAAC and determine the most appropriate course of action.

Our findings are developed into a tailored project solution, which may include monitoring, temporary works, structural strengthening, controlled removal or complete roof replacement. Starfish Environmental and Asbestos Services, SEAS, works alongside our technical and delivery teams to identify and manage asbestos-containing materials associated with the existing structure. By coordinating surveying, design, asbestos management, access, roofing, M&E and construction through one project team, we provide clear accountability and a safe, compliant solution shaped around the building and its continued operation.

Technical RAAC Surveys and Investigation

Our technical team reviews available building information and carries out detailed site surveys to establish the location, extent and condition of suspected RAAC. Targeted intrusive investigations may also be undertaken where required to examine panel construction, bearing details, deterioration, water ingress and associated building elements. The findings provide the evidence needed for structural assessment, remediation planning, programme development and realistic cost forecasting.

Structural Assessment and RAAC Remediation Strategy

Survey findings are assessed alongside competent structural engineering input to determine the level of risk and the most appropriate response. We consider the condition of the RAAC, building use, occupancy, access, existing services and operational requirements. This supports a tailored strategy that may include monitoring, temporary measures, structural strengthening, partial replacement or complete removal and replacement.

Coordinated Design and RAAC Project Delivery

Our design and delivery teams coordinate structural solutions, temporary works, access, roofing, M&E services and construction sequencing through one project programme. Strengthening, repair or replacement works are planned around the building’s operational requirements, with suitable protection and segregation measures incorporated where areas must remain occupied. This coordinated approach reduces interface risks and provides clear responsibility throughout delivery.

RAAC Strengthening Solutions

Where assessment confirms RAAC panels can safely remain, engineered strengthening may offer an alternative to removal. Solutions may include steel supportwork, load distribution systems, or other measures tailored to the existing condition and loading.

Starfish Construction coordinates strengthening with temporary works, access, roofing, M&E services, and operational needs. Works are sequenced in live environments with appropriate protection, segregation, and monitoring. This survey-led approach reduces disruption, retains usable elements, and delivers a proportionate, evidence-based solution with clear project and handover records.

Integrated Asbestos Management

RAAC is frequently found in buildings constructed when asbestos-containing materials were also widely used. Starfish Environmental and Asbestos Services (SEAS) reviews existing asbestos information and undertakes or coordinates appropriate surveys, sampling, management and licensed removal where required. Asbestos risks are incorporated into the RAAC design and programme from the outset, helping to prevent unexpected discoveries, reduce delays and protect building users and project teams. HSE specifically advises that RAAC collapse or remediation work could disturb asbestos where both materials are present.

Project Records and Duty Holder Support

Clear records are maintained throughout the project, including survey findings, structural assessments, design information, temporary works, remediation decisions and completion documentation. This information supports building owners and duty holders in demonstrating how RAAC risks have been assessed and managed. Where applicable, project information can also contribute to wider Building Safety Act, asset management and Golden Thread records.

    If RAAC is suspected or has been identified within your building, our specialists can provide advice, surveys and reporting to help you understand the most appropriate next steps. 

    Speak to our RAAC team
    Please type your First Name.
    Please enter a valid email address
    Invalid telephone number.
    Please enter a valid enquiry message using normal words and sentences
    Invalid Input

    Proven RAAC Remediation Projects Across Complex and Operational Buildings

    Explore how Starfish Construction surveys, designs and delivers tailored RAAC solutions across education, utilities and live commercial environments. These projects demonstrate in-situ strengthening, controlled RAAC removal, roof replacement, asbestos management and coordinated project delivery.

    • Controlled removal of the existing RAAC roof panels
    • Installation of a new steel deck and insulated flat roof system
    • Temporary roof, crash deck and coordinated M&E and refrigeration works
    • Engineered strengthening of the existing RAAC panels in situ
    • Installation of steel support work and timber load distribution joists
    • Temporary works and service protection within an occupied operational building
    • Replacement of approximately 450 m² of RAAC roof panels
    • New steel beams, decking and a complete roofing system installed
    • Internal crash deck and rolling temporary roof to protect the occupied school
    • Removal of RAAC roof panels and installation of a new insulated roofing system
    • Licensed removal of asbestos insulation board by SEAS
    • Façade improvements and thermal upgrades to roof and external walls
      Project Profiles

      RAAC Risk Categories and Required Actions

      Duty holders must understand RAAC risk levels to prioritise remedial work. Our RAAC risk assessment services classify findings as:

      • High Risk

        Advanced deterioration, deflection, cracking or water ingress. Immediate temporary supports or access restrictions may be required, followed by urgent RAAC strengthening works or replacement.
      • Medium Risk

        Panels require monitoring or planned strengthening. Works can often be programmed with minimal disruption.
      • Low Risk

        Panels remain structurally stable but require routine inspection, planned maintenance or long-term monitoring.

      These categories are aligned with current structural engineering guidance and inform your RAAC assessment and remediation record.

      CONTACT OUR SPECIALIST RAAC TEAM
      If you need to speak to our RAAC Remediation Team about a project, please visit our Contact Us Page

      graphic showing a graph on an eye glass - decorative

      Explore the RAAC Knowledge Centre

      Access practical guidance, expert insight, Duty Holder resources and completed project experience covering RAAC identification, assessment, management and remediation. The Starfish Construction RAAC Knowledge Centre brings together the information building owners, estates teams, surveyors, consultants and project stakeholders need to understand the issue, consider the available options and identify the appropriate next step.

      Explore the RAAC Knowledge Centre >

      Starfish surveyors discussing plans in front of a computer screen

      Lifecycle Management and Ongoing Monitoring

      RAAC management extends well beyond initial remediation, making it vital for duty holders to establish a long-term strategy. We offer scheduled re-inspection programmes that monitor the condition of RAAC elements over time, supported by customised monitoring and maintenance plans that help prevent deterioration and maintain ongoing structural safety.

      As part of this service, we update your RAAC assessment and remediation record to include any changes in condition or corrective actions. All data is presented through clear digital documentation that meets Golden Thread requirements.

      This structured approach ensures ongoing compliance and enables duty holders to take a proactive stance on building safety. Starfish Construction has been working UK-wide to provide expert and safe solutions across a range of educational and commercial properties.

      Building Safety Act Compliance and Duty Holder Support

      Where the Building Safety Act and higher-risk building regime apply, our project records can support duty holders, accountable persons and project teams in maintaining clear evidence of how RAAC risk has been assessed and managed.

      Survey findings, structural assessments, design decisions, temporary works information, change records and completion documentation can contribute to safety case information, building control submissions and the Golden Thread of information where applicable.

      Our role is to provide clear, structured project evidence that supports the client’s statutory responsibilities. Legal accountability remains with the relevant duty holders, accountable persons and Principal Accountable Person.

      WHY CHOOSE STARFISH CONSTRUCTION

      Turnkey Solutions for RAAC Management

      Starfish Construction draws on in-house expertise and project experience to deliver safe, compliant and efficient RAAC strengthening and remediation. Our end-to-end offering supports duty holders through survey, planning and delivery in a single integrated service, reducing the complexity of managing RAAC risk.

      Our team has extensive experience in technical surveying and structural analysis, with a proven track record of delivering remediation projects across schools, commercial facilities, and public-sector property assets.

      We are committed to upholding the principles of Health, Safety, Quality, and Environmental standards. Additionally, we actively engage in project communication and stakeholder involvement.

      RAAC Remediation Frequently Asked Questions (FAQs)

      If Reinforced Autoclaved Aerated Concrete (RAAC) has been identified or is suspected within your building, understanding the next steps is essential. Building owners, duty holders, estates teams and property professionals often have questions about structural risk, surveys, remediation options, programme timescales and ongoing compliance.

      These frequently asked questions provide practical guidance to help you understand how RAAC is assessed, managed and remediated, and how a structured survey-first approach supports informed decision-making, regulatory compliance and long-term building safety. For more in-depth understanding of RAAC, explore our RAAC Knowledge Centre.

      How can I determine whether my building contains RAAC?

      Buildings constructed between the 1950s and late 1980s, particularly schools, hospitals, public buildings, defence estates and some commercial properties, may contain Reinforced Autoclaved Aerated Concrete, known as RAAC.

      RAAC can be difficult to confirm through visual inspection alone. Where construction records are incomplete, unclear or unavailable, a professional RAAC survey and targeted intrusive investigation are the most reliable ways to confirm whether RAAC is present and assess its condition. Early identification helps building owners and duty holders make informed decisions about safety, compliance, risk management and any remediation requirements.

      What happens after RAAC is discovered?

      Once RAAC has been identified, the priority is to assess its condition and any associated structural risk. Depending on the findings, temporary measures such as restricted access, load reduction or structural supports may be required while a detailed assessment is completed.

      A professional RAAC survey and structural engineering assessment will determine whether monitoring, strengthening, partial replacement or full removal is the most appropriate course of action. This allows building owners and duty holders to develop a safe, proportionate and evidence-led remediation strategy.

      What options are available for remediating RAAC?

      The appropriate RAAC remediation strategy depends on the condition of the material, the building’s use, structural requirements, operational constraints and long-term objectives.

      Options may include continued monitoring, load reduction, temporary support, structural strengthening, over-roofing, partial replacement or complete removal and replacement.

      Selecting the right solution should always be based on detailed survey findings and structural engineering assessment. RAAC remediation should not be approached as a single standard solution, because each building, structure and risk profile is different.

      Do all RAAC panels need to be replaced?

      No. Not every RAAC panel requires replacement. In some situations, continued monitoring, load reduction or structural strengthening may provide an appropriate solution.

      The correct approach depends on the condition of the material, its structural performance, evidence of deterioration, exposure to moisture, bearing condition, loading, the building’s operational requirements and the findings of a detailed engineering assessment.

      Every building should therefore be assessed individually before remediation decisions are made.

      How long does a typical RAAC remediation project take?

      There is no standard programme for RAAC remediation because every building presents different technical and operational challenges.

      Timescales depend on factors such as the size and complexity of the building, survey findings, structural design requirements, temporary works, access strategy, procurement, stakeholder requirements and whether the building remains occupied during construction.

      Completing detailed surveys and investigations early helps establish realistic programmes, reduce uncertainty and improve control during delivery.

      Can RAAC remediation be carried out while a building remains operational?

      Yes. Many RAAC remediation projects can be delivered while buildings remain operational, particularly where careful planning, phased construction, temporary protection and effective stakeholder communication are in place.

      Working within occupied schools, commercial premises, public-sector buildings and live operational environments requires detailed programming, safe segregation, clear access routes, temporary works planning and close coordination with building users.

      Starfish Construction plans RAAC works around safety, continuity and operational requirements to minimise disruption wherever possible. Visit our London School RAAC Remediation project case study to gain a better understanding of the process in an occupied building environment. 

      What documentation should duty holders keep when RAAC is identified?

      Duty holders should retain clear records showing how RAAC has been identified, assessed, managed and remediated. This may include survey reports, intrusive inspection findings, structural assessments, risk classifications, temporary works information, remediation strategies, design calculations, method statements, compliance records, as-built information, O&M manual updates and ongoing inspection schedules.

      Where the Building Safety Act applies, these records may also support wider duty holder responsibilities, including evidence of competent appointments, risk management, prescribed documents, safety case information, Gateway requirements and Golden Thread records.

      Starfish Construction has developed a practical RAAC Management Duty Holder Guidance and Checklist to help building owners, surveyors, property managers and duty holders understand the key responsibilities involved when RAAC is identified or suspected. The guide covers five key compliance priorities, including confirming material and structural condition, establishing risk and immediate controls, defining a remediation or removal strategy, ensuring Building Safety Act compliance and maintaining the Golden Thread of information.

      Contact Us for RAAC Advice and Support

      If you believe your building may contain RAAC or you need specialist remediation support, get in touch with Starfish Construction to speak with our building safety team. Complete the Enquiry form.

      Contact Us
      Please type your First Name.
      Please enter a valid email address
      Invalid telephone number.
      Please enter a valid enquiry message using normal words and sentences
      Invalid Input