What Vendor Due Diligence Covers
Vendor and contractor due diligence for buildings is the systematic process of evaluating, selecting, and monitoring third-party service providers who maintain, operate, or modify building systems. It encompasses prequalification assessment, contract negotiation, ongoing performance monitoring, and compliance verification. For commercial buildings, external contractors typically deliver 60-80% of all maintenance and operational services, making vendor management one of the most critical facility management functions.
Why It Matters
Contractor quality directly determines building performance, occupant safety, and operational cost. A poorly qualified HVAC contractor can damage expensive equipment. An uninsured electrical contractor creates liability exposure. A cleaning company with inadequate supervision delivers inconsistent service. For multinational occupiers, vendor management also includes compliance with corporate procurement policies, anti-bribery regulations (FCPA, UK Bribery Act), labour standards, and ESG requirements. In Bangladesh, where contractor regulation varies widely, due diligence is particularly important.
Prequalification Criteria
Technical capability: Relevant certifications, licensed technicians, equipment and tools, experience with similar building types and systems. For specialist contractors (lift maintenance, fire protection, BMS), verify manufacturer authorisation or training credentials.
Financial stability: Company registration, tax compliance, audited financial statements for the last 2-3 years (for major contracts), banking references. Financial instability leads to service interruption, inability to procure spare parts, and risk of abandoning contracts.
Insurance: Public liability insurance (minimum coverage appropriate to contract value), employer's liability/workers' compensation, professional indemnity (for design services), and motor vehicle insurance. Verify policy validity and coverage limits, not just the certificate.
Health and safety: Written H&S policy, risk assessment methodology, incident records, PPE provision, safety training records for workers. For high-risk activities (working at height, electrical, confined space), verify specific competency certifications.
References: Minimum three references from similar building types and contract sizes. Contact references to verify performance, reliability, and dispute resolution approach. Site visits to reference buildings are valuable for major contracts.
Contract Structures
Comprehensive maintenance contracts: Fixed monthly fee covering all planned and reactive maintenance for specified systems. Provides budget certainty but requires clear scope definition and exclusion lists. Best for critical systems (lifts, fire protection, HVAC).
Planned maintenance only: Fixed fee for scheduled preventive maintenance, with reactive work quoted separately. Lower fixed cost but less budget certainty. Suitable for non-critical systems.
Call-out basis: Pay per visit with agreed hourly rates and mark-up on materials. Most flexible but hardest to budget. Suitable for infrequent or specialist work.
Performance-based contracts: Fees linked to KPI achievement (response times, equipment uptime, energy performance). Aligns contractor incentives with building performance. Requires robust monitoring and measurement systems.
Contract Key Terms
Essential contract provisions include: detailed scope of work with inclusions and exclusions, service level agreements with KPIs and remedies, pricing structure and escalation mechanisms, payment terms, insurance requirements, termination provisions (for cause and for convenience), subcontracting restrictions, confidentiality obligations, data protection compliance, and dispute resolution procedures. For Bangladesh, ensure the governing law and jurisdiction are clearly stated.
Performance Monitoring
Effective vendor management requires ongoing monitoring: monthly KPI reporting against SLAs, regular site inspections of work quality, quarterly performance review meetings, annual contract review and benchmarking, incident and complaint tracking, and periodic mystery audits. Use CMMS/CAFM systems to track work orders, response times, and completion rates. Address performance issues promptly through the contractual escalation process.
Bangladesh Context
Contractor management in Bangladesh presents specific challenges: limited availability of manufacturer-authorised service providers for specialised equipment, variable quality of technical training and certification, informal contracting practices, limited insurance coverage, and workforce welfare considerations. Best practice approaches include: developing long-term relationships with quality contractors, providing training and skill development support, verifying worker welfare practices, and maintaining a prequalified vendor list with regular reassessment.
Standards and References
Key references include ISO 41001 (Facility Management Systems), IFMA competency area on Operations and Maintenance, RICS Guidance on Procurement and Tendering, the CIBSE Maintenance Engineering guide, ISO 45001 (Occupational Health and Safety — for contractor safety requirements), and the ILO guidelines on decent work in supply chains.