Specialist Building Envelope Services
Two service pillars: specialist flat roof testing and building envelope diagnostics — supported by technical building-envelope support and remediation guidance.
A correctly diagnosed building-envelope defect can prevent unnecessary repair expenditure, repeated contractor visits and costly disruption.
Specialist Flat Roof Testing
Electronic leak detection for suitable non-conductive flat roof membranes.
Electronic Leak Detection for Flat Roofs
Specialist electronic testing to help locate breaches and defects in suitable flat roof membranes. Available by advance request, subject to project suitability review.
Request ELD AvailabilityTypical Reasons
- Recurring flat roof leaks
- Membrane defects
- Difficult-to-locate breaches
- Pre-handover testing
- Post-repair verification
- Membrane integrity concerns
- Waterproofing QA
What's Included
- Project suitability review
- Test scope confirmation
- On-site electronic testing
- Defect identification where applicable
- Photographic evidence
- Marked defect locations where appropriate
What You Receive
- Technical findings summary
- Photographic evidence
- Marked defect locations where appropriate
- Recommended next steps
Typical Guide Fee
From £750
Pricing depends on roof size, accessibility, investigation objectives, roof construction, reporting requirements and site location. Every enquiry receives a suitability review before a quotation is issued.
Investigate a Building Envelope Problem
Independent investigation of water ingress, moisture, condensation and façade defects.
Water Ingress Investigations
Typical Reasons Clients Contact Vertex
- Recurring leaks that previous repairs have failed to resolve
- Water ingress through roofs, façades, balconies or interfaces
- Internal moisture staining
- Wind-driven rain penetration
- Independent technical assessment before major repair works
What the Investigation May Include
- Desktop review of available drawings and photographs
- Site inspection
- Investigation of moisture pathways
- Roof and façade interface assessment
- Photographic defect schedule
- Identification of likely failure mechanisms
What You Receive
- Technical findings
- Photographic evidence
- Practical remediation recommendations
- Comprehensive investigation report
Guide Fee
From £750
Damp & Moisture Assessments
Typical Reasons Clients Contact Vertex
- Persistent damp that has not been explained
- Unexplained moisture or moisture staining
- Recurring damp patches
- Uncertain moisture source
- Independent assessment before remediation
What the Investigation May Include
- Desktop review of available information
- Site inspection and visual assessment
- Moisture mapping where appropriate
- Construction detail review
- Thermal performance review
- Identification of likely contributing factors
What You Receive
- Technical findings
- Photographic evidence
- Likely contributing factors
- Practical remediation recommendations
Guide Fee
From £500
Condensation Investigations
Typical Reasons Clients Contact Vertex
- Condensation concerns
- Mould-related building conditions
- Cold surfaces
- Suspected thermal bridging
- Insulation-related concerns
- Ventilation interaction concerns
What the Investigation May Include
- Desktop review of construction and occupancy information
- Site inspection and visual assessment
- Surface temperature observations
- Construction and insulation review
- Ventilation interaction review
- Thermal risk assessment
What You Receive
- Technical findings
- Likely contributing factors
- Practical remediation recommendations
- Investigation summary
Guide Fee
From £500
Façade Defect Investigations
Typical Reasons Clients Contact Vertex
- Cracked render or EWI defects
- Façade staining or biological growth
- Delamination
- Sealant failure
- Junction or interface failure
- Water ingress through the façade
What the Investigation May Include
- Desktop review of drawings and specifications
- Site inspection of façade system
- Defect mapping where required
- Construction detail and junction review
- Photographic record
- Identification of likely failure mechanisms
What You Receive
- Technical findings
- Photographic evidence
- Likely contributing factors
- Practical remediation recommendations
Guide Fee
From £750
Complex investigations involving large buildings, multiple visits or extensive reporting are quoted individually.
Assess Building Condition
Structured condition surveys and building envelope reviews with photographic defect records.
Roof Condition Surveys
Typical Reasons
- Planned maintenance planning
- Pre-purchase or pre-lease assessment
- Warranty or insurance assessment
- Repair prioritisation
- Asset condition recording
- Recurring defect investigation
What the Survey May Include
- Flat roofs
- Commercial and industrial roofs
- Waterproofing systems
- Roof interfaces and parapets
- Outlets, penetrations and rooflights
- Drainage systems
What You Receive
- Photographic defect record
- Defect schedule
- Condition assessment
- Priority recommendations
Guide Fee
From £750
Façade Condition Surveys
Typical Reasons
- Planned maintenance planning
- Pre-purchase or pre-lease assessment
- Render or cladding condition concerns
- Staining or biological growth
- Sealant or joint failure
- Repair prioritisation
What the Survey May Include
- Render and EWI systems
- Cladding
- Sealants and movement joints
- Cracking and movement
- Biological staining
- Façade interfaces
What You Receive
- Photographic defect record
- Defect schedule
- Condition assessment
- Priority recommendations
Guide Fee
From £750
Building Envelope Reviews
Typical Reasons
- Comprehensive building condition assessment
- Pre-purchase or pre-lease due diligence
- Multi-defect investigation
- Repair and maintenance planning
- Warranty or insurance assessment
- Asset management support
What the Survey May Include
- Roof
- Façade
- Windows and interfaces
- Junctions
- Balconies and terraces
- Service penetrations
What You Receive
- Comprehensive envelope review
- Photographic record
- Defect schedule
- Priority recommendations
- Suggested next steps
Guide Fee
From £1,000
Complex surveys involving large buildings or extensive reporting are quoted individually.
Technical Consultancy Rates
U-values, thermal bridge reviews, specification support, technical detail reviews and remediation guidance.
U-Value Assessment
From £250Thermal Bridge Review
From £350Technical Detail Review
From £300Specification Review
From £300Technical Support
From £85/hourDay Rate
From £650/dayLarger or specialist analysis is quoted individually. Please confirm your specific requirements at enquiry stage.
Remediation Support
Helping clients make informed technical decisions after investigation has been completed. Vertex is not a repair contractor.
Not Sure Which Service You Need?
Send project details, photographs and any available drawings or reports for review. Vertex will help identify the appropriate investigation route.