Intrusive Survey Facilitation

Helping Clients Understand Building Risk Before Remediation Begins •Helping Clients Understand Building Risk Before Remediation Begins •
Intrusive Survey Facilitation2026-09-29T18:17:38+00:00
Simbi Ltd operative beside exposed wall insulation and timber studs during intrusive survey facilitation.

Supporting consultants, architects and contractors across London and the South East.

Intrusive Survey Facilitation in London and the South East

At Simbi Ltd, we provide intrusive survey facilitation for buildings across London and the South East. Our team supports appointed consultants and architects with access and opening-up works. This allows specialists to inspect areas concealed behind the external finish.

Supporting External Wall Investigations

External finishes can hide important details of a building’s construction. Intrusive surveys therefore involve opening up selected areas for closer inspection.

To support these investigations, our team provides access for the appointed specialists. We hold relevant access accreditations and work alongside consultants and architects to support the agreed survey scope.

For background on external wall fire risk appraisals, read the RICS explanation of PAS 9980.

Our Approach to Intrusive Survey Facilitation

Before work begins, we coordinate with the project team to understand where access and opening-up works are required. We then plan our activities around the survey requirements.

Throughout the process, we work closely with the appointed specialists so they can reach the areas they need to examine.

  • Safe access and opening up works
  • Coordination with consultants and survey teams
  • Professional reinstatement following investigations

Experience in External Wall Remediation

Our experience includes intrusive survey facilitation and subsequent remediation works at Mayer House in Reading. On this project, our scope also included replacing non-compliant render and timber cladding with specified façade systems.

For more detail about our work, explore the Mayer House project.

Qualified Access Teams

Our  teams hold relevant access accreditations and have experience working across occupied residential and commercial buildings.

Remediation Expertise

Extensive experience supporting façade investigations, fire safety programmes and remediation projects throughout the South East.

Supporting Safer, Compliant Buildings Through Accurate Building Information

By helping project teams understand existing conditions, intrusive investigations reduce uncertainty, support compliance and improve project outcomes.

service related FAQ’s

Why are intrusive surveys important?2026-06-18T10:59:22+00:00

They provide essential information about materials, fire stopping arrangements, cavity barriers and construction methods, helping project teams develop compliant remediation solutions.

What building types do you work on?2026-06-18T10:59:46+00:00

We support investigations across residential, commercial, mixed use and public sector buildings.

Do you provide reinstatement after surveys?2026-06-18T11:00:38+00:00

Yes. Where required, we reinstate affected areas following completion of the investigation works.

Can surveys be carried out in occupied buildings?2026-06-18T11:00:07+00:00

Yes. Our teams regularly work within occupied buildings and take measures to minimise disruption to residents and building users.

What is intrusive survey facilitation?2026-06-18T10:57:24+00:00

Intrusive survey facilitation involves providing safe access and opening up works that allow consultants and surveyors to investigate concealed elements of a building’s external wall system.

Need Support With An Intrusive Survey Project?

Contact our team about survey facilitation, remediation planning and façade investigation support.

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