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Common Gas Compliance Mistakes Landlords Make (And How to Avoid Them)

08 June 2026

Gas safety compliance is one of the most important responsibilities for landlords in the UK. Yet, despite clear legal requirements, many landlords still make avoidable mistakes that can put tenants at risk and lead to costly penalties.

Whether you manage a single rental property or a larger portfolio, understanding where things commonly go wrong can help you stay compliant, protect your tenants, and avoid enforcement action.

Below, we break down the most common gas compliance mistakes landlords make and how to avoid them.

1. Letting the Gas Safety Certificate Expire

One of the most frequent and serious mistakes is failing to renew the Gas Safety Certificate (CP12) on time.

Landlords are legally required to:

  • Arrange a gas safety check every 12 months
  • Keep a valid Gas Safety Record
  • Provide a copy to tenants within 28 days (or before they move in)

Why this happens

Many landlords simply forget the renewal date or assume a reminder will be sent automatically.

How to avoid it

Set a recurring annual reminder well in advance or use a compliance management system. Booking your inspection early avoids last-minute delays and ensures continuous compliance.

2. Using Unregistered or Unqualified Engineers

All gas work in rented properties must be carried out by a Gas Safe registered engineer.

Common mistake

Hiring a general handyman or an unregistered contractor to save time or money.

Why it matters

Illegal gas work is not only dangerous but also invalidates your compliance records and can result in prosecution.

How to avoid it

Always verify an engineer’s Gas Safe ID card and check their registration number on the official Gas Safe Register before any work begins.

3. Not Keeping Proper Records

Even if inspections are completed, failing to store documentation correctly can still put landlords in breach of regulations.

What landlords must keep:

  • Gas Safety Certificates (CP12)
  • Service records for boilers and appliances
  • Repair and maintenance history

Common issue

Documents are often misplaced, stored across different emails, or not updated when new checks are completed.

How to avoid it

Maintain a central digital folder for each property and ensure records are easily accessible for at least two years.

4. Missing Gas Appliance Servicing (Beyond the Legal Minimum)

While annual gas safety checks are required by law, regular servicing of boilers and appliances is often overlooked.

Why it’s important

A safety check confirms appliances are safe at that moment but servicing helps prevent breakdowns and long-term safety risks.

Common mistake

Assuming the annual inspection is enough on its own.

How to avoid it

Schedule an annual boiler service alongside your gas safety inspection. This helps maintain efficiency and reduces emergency repair costs.

5. Delaying Repairs Identified in Safety Checks

If an inspection identifies a fault, landlords must act quickly. However, some delay repairs due to cost concerns or scheduling issues.

Risks include:

  • Increased safety hazards
  • Invalid insurance cover
  • Legal penalties if tenants are exposed to danger

How to avoid it

Treat any issues marked “at risk” or “immediately dangerous” as urgent. Arrange repairs with a qualified engineer without delay.

6. Failing to Provide Certificates to Tenants on Time

Landlords must provide tenants with a copy of the Gas Safety Certificate:

  • Within 28 days of the check, or
  • Before a new tenant moves in

Common oversight

Completing the check but forgetting to send documentation.

How to avoid it

Create a checklist process after every inspection that includes immediate distribution of the certificate via email or printed copy.

7. Assuming Compliance is “Set and Forget”

Gas safety compliance is ongoing, not a one-time task.

Common mistake

Believing that once systems are in place, no further action is needed until renewal.

How to avoid it

Adopt a proactive maintenance schedule that includes:

  • Annual safety checks
  • Regular servicing
  • Prompt repairs
  • Up-to-date record keeping

Staying Compliant with Confidence

Avoiding these common mistakes not only keeps you legally compliant but also protects your tenants and your property investment.

At Shropshire Gas, we support landlords with reliable, fully compliant gas safety services, helping ensure all inspections, servicing, and certification are handled correctly and on time.

If you want peace of mind that your rental properties are safe and compliant year-round, working with a qualified Gas Safe registered engineer is essential.

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