Beyond Compliance: Proactive Carbon Monoxide Safety for London Landlords This Winter

Why Carbon Monoxide Safety Demands More Than Legal Compliance

Carbon monoxide (CO) poisoning remains a silent but serious risk, especially during colder months when fuel-burning appliances are used frequently. Legal requirements mandate landlords to install EN 50291-approved audible CO alarms in rooms with fixed combustion appliances (excluding gas cookers), conduct annual servicing, and maintain clear ventilation. However, Propertymark’s call during Carbon Monoxide Awareness Week 2025 urges landlords to proactively exceed these baseline obligations.

For London landlords—whether managing one property or a portfolio—this means auditing safety measures thoroughly and actively engaging tenants to reduce risks. The consequences of CO exposure can be devastating, and the approach of winter heightens the urgency.

Legal Obligations at a Glance

• CO Alarm Installation: Install EN 50291-approved audible CO alarms in every room with a fixed combustion appliance like gas boilers, gas fires, or solid fuel stoves. Gas cookers are exempt.
• Annual Servicing: Arrange annual safety servicing of all fuel-burning appliances, flues, and chimneys, keeping written proof.
• Ventilation and Appliance Condition: Ensure ventilation is unobstructed and verify appliances show clean combustion (yellow/orange flames).
• Tenant Communication: Inform tenants about alarm testing, alarm sounds, and emergency contact procedures clearly.
• Record-Keeping: Maintain accessible records for servicing, alarm testing, inspections, and tenant guidance.

Practical Steps for Immediate Action

1. Conduct a Property Safety Audit Now

Verify compliant CO alarm installations across your rental properties, especially important for HMOs and portfolios with multiple appliance types. Review servicing records and promptly schedule any outstanding maintenance before winter peaks.

2. Update Documentation and Procedures

Incorporate explicit CO safety requirements into tenancy agreements and inspection checklists. Ensure emergency procedures are current and communicated at move-in and during annual checks.

3. Engage Tenants Proactively During Awareness Week

Use newsletters or social media to educate tenants on alarm testing, recognising alarms, and emergency responses. Engagement builds trust and encourages timely reporting of issues.

4. Tailor Approaches Based on Landlord Profile

• Single-unit landlords can manage audits and communications personally but must keep detailed records.
• HMO landlords should ensure alarms in all required rooms and proper ventilation in shared spaces.
• Portfolio landlords benefit from centralised compliance audits, possibly with professional support.
• Accidental landlords are advised to seek expert guidance to fully understand their obligations.

Why Early Preparation Matters

Increased winter fuel use raises CO risks. Acting now to assure alarm functionality, serviced appliances, and informed tenants helps prevent tragedies and costly legal repercussions.

How Rentals & Sales Can Support You

Rentals & Sales provides comprehensive portfolio reviews and compliance audits to uncover CO safety gaps. We aid in updating tenancy documents and creating tenant communication strategies tailored to your portfolio. With our help, you can demonstrate proactive safety management confidently to tenants and regulators alike.

Compliance Disclaimer: This article offers general guidance based on legal requirements and best practices as of June 2025. Landlords should consult official legislation and professional advice specific to their situation.