Introduction

A failed Gas Safety Certificate (CP12) is a serious issue that landlords cannot ignore. Whether you manage a single property or multiple rentals across West Molesey, Walton-on-Thames, or Surrey, quick action is essential to stay compliant and protect your tenants.
This guide explains exactly what to do if your CP12 fails and how to resolve issues efficiently.

---

Step 1: Understand the CP12 Report

When a Gas Safe engineer completes your inspection, they classify issues under two main categories:

Immediately Dangerous (ID)

These faults pose a real and immediate risk. The appliance must be isolated or turned off right away.

At Risk / Minor Faults

These do not pose immediate danger but still require repair.

Local insight:
In many Surrey rental homes, older boilers or original gas appliances often develop age-related wear. Regular servicing helps avoid sudden CP12 failures.

---

Step 2: Take Action on Dangerous Appliances

If the engineer marks an appliance as Immediately Dangerous, you must:

• Ensure the appliance is not used under any circumstances
• Inform your tenants immediately
• Isolate or shut off the appliance if advised

Failing to act could lead to legal consequences and increased safety risks.

---

Step 3: Arrange Repairs Quickly

Contact a Gas Safe registered engineer as soon as possible.

Landlords in West Molesey, East Molesey and Walton-on-Thames often prefer to use local specialists like Certificates4UK Ltd due to faster response times and experience with common issues in Surrey properties.

Repairs should ideally be arranged:

• Same day for dangerous faults
• Within a few days for minor issues

---

Step 4: Keep Detailed Records

You should keep copies of:

• The failed CP12 report
• Repair invoices
• Notes from the Gas Safe engineer
• Any communication sent to tenants

Good record-keeping protects landlords and ensures compliance during audits or disputes.

---

Step 5: Update Your CP12 Certificate

Once repairs are complete, request:

• A new CP12 certificate, or
• An updated version of the original inspection report

Landlords are legally required to provide tenants with an up-to-date certificate.

---

Step 6: Communicate with Your Tenants

Once the appliance is repaired and safe, inform your tenants promptly.
Clear, professional communication helps maintain trust and demonstrates responsible property management.

---

Step 7: Prevent Future Failures

To reduce the risk of future CP12 problems:

• Book annual inspections on time
• Schedule boiler servicing, especially for older systems
• Consider proactive repairs before renewing tenancies

In areas like Molesey, Walton, and Hampton, older rental properties often benefit from twice-yearly gas checks.

---

Quick Summary

• Review the CP12 report carefully
• Isolate any Immediately Dangerous appliances
• Book a Gas Safe engineer quickly
• Keep all documentation
• Update the CP12 after repairs
• Notify tenants once safe
• Schedule annual inspections

---

Internal Link

Book a Gas Safety Certificate (CP12) here:
https://www.certificates4uk.co.uk/gas-safety-certificate