Gas Safety Certificate from £69

£69	Gas Safety Certificate Meter Check
£79	Gas Safety Certificate For Up To 2 Appliances CP12
£79	Gas Safety Certificate For Up To 3 Appliances CP12
£99	* Special Offer* Boiler Service With A Free Gas Safety Certificate CP12

We provide gas safety certificates in London for landlords at highly competitive prices. Our annual gas safety certificate known as a CP12 is the certificate used for tenanted properties to ensure all gas appliances are working safely.

With nearly 12 years of experience serving London we are confident in our abilities to bring you expert gas certs with a promise of a great service at competitive prices.

As a gas registered company, we ensure your gas installation is tested to current legal and safety standards. Whether you have a single or multiple gas appliances we provide reliable and professional services to meet your needs with an online booking system, next-day availability, fast turnaround times, and competitive pricing.

What is a Gas Safety Certificate?

A Gas Safety Certificate (also known as a CP12 certificate) certifies your gas installation to ensure the appliances are safe to use. Appliances such as boilers, cookers, and gas fires need to be routinely tested by a Gas Safe registered engineer. The certificate confirms that the appliances are safe to use and meet the legal requirements for gas safety.

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What is Inspected During a Gas Safety Certificate

When you book a gas safety cert with us our experienced engineers will:

Visual Inspection Of All Gas Appliances: We will visually examine all of your gas appliances to ensure they are working properly and safely.
Check for Leaks: We will check all gas connections and pipework to source any leaks, ensuring no gas or carbon monoxide is being released into the room.
Test the Pressure: Our engineers will check the gas pressures to ensure your appliances are functioning efficiently and to ensure the supplier is providing the required gas pressures.
Ventilation and Flues: We will make sure your appliances have the correct ventilation and that the flue system is working correctly to release the products of combustion outside of the property.
Testing Alarms: We will test your fire and carbon monoxide alarms to make sure they are in good working order and can provide an early warning to occupants.

Why Choose Efficient Home Energy?

Qualified Engineers

We are Gas Safe registered and specialists in gas safety. With nearly 12 years of experience and thousands of gas certificates issued, we can confidently say that we are the professionals you are looking for.

Convenience and Reliability

We offer flexible booking times via our online booking system to suit your schedule and ensure minimal disruption to your day. With next day availability and an easy to use booking system, our team will provide you a 3 hour timeslot, and you will receive an SMS text notifying you when the engineer is on his way!

Fully Compliant

We comply with the Gas Safety (Installation and Use) Regulations 1998, ensuring your appliances meet all of the required safety standards.

Clear Certification

After the inspection, you will receive a Gas Safety Certificate (CP12 certificate) to your email, verifying that your appliances are safe to use.

Over 2000 Customer Reviews

With over 2000 positive reviews across Google and Trustpilot, our customers provide us with honest feedback so we can ensure we maintain our service levels.

What to expect when the engineer visits your property?

Special Offer: Boiler Service & Free Gas Safety Certificate for Just £99!

To make sure your home stays safe and your gas appliances remain safe, we are offering a Boiler Service and Gas Safety Certificate (CP12 certificate) combined for only £99 . This limited offer is a fantastic way to ensure your heating system is working efficiently and meets all safety requirements.

Save More with Our Service Bundles

We also offer a variety of service bundles, which allow you to benefit from multiple certificates and services with one single visit. Helping you make one booking for all of your certificates. Examples of the bundle deals are below:

Gas Safety Certificate & EPC (Energy Performance Certificate): Have your gas safety certificate conveniently carried out with an energy performance certificate together from £125 saving you time and money.
Gas Safety Certificate & PAT Testing (Portable Appliance Testing): Ensure the safety of your electrical appliances with our comprehensive PAT testing service from £135.
Gas Safety Certificate & EICR (Electrical Certificate): A vital certificate for ensuring your property’s electrical system is safe and compliant from £150.
Gas Safety Certificate & Fire Alarm Certificate: Ensure your fire alarm system is working efficiently and meets legal requirements from £140.

Make sure that your property complies with all necessary standards and save by combining services. For more information on our bundle packages, please contact us or check out our Bundle Pricing Page.

The Team at Efficient Home Energy

We pride ourselves on our professional gas safety services and also the amazing team of engineers who make it all possible. We are fully Gas Safe registered and our engineers are highly trained to deliver the best possible service. Some of our engineers are also multi trade trained so you can tick off all of your property’s safety requirements with one visit.

Gas Safety Certificate in London for Landlords

We have been dealing with private landlords across London for many years. We understand that it can be difficult and frustrating to make sure tenants are available for an engineer to attend which is why our engineers software can txt them when we are on the way to reduce any potential failed visits.

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 Excellent4.7843 reviews
 4.7
 Excellent843 reviews
  Write a review 
 
 
 
   
 
 
      Posted on Google  
   
   janak shah 
 28 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Efficient home energy co is amazingly very friendly and efficient and they have done very good service for me in every way and they have been very helpful and supportive
  
 
     Posted on Google  
   
   Rodica Roman 
 22 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. The service was great this year which improved comparing with last year. The engineer text saying that was arriving in 30 minute which was assuring that will be coming. Last year I was waiting from 2 to 6 pm and noone came. When I called I have been told that the engeneer came but none was at home which was not true as I was inside the house the whole time. So I had to pay extra £50. But this year the service was improved so 5 stars well deserved.
  
 
     Posted on Google  
   
   Peter Hedges 
 22 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. I used Efficient Home Energy to produce an EICR. Some remedial work was required which was done effectively by competent and polite technicians though we did have a payment issue that needed resolving and they were not able to replace the faulty sockets with similar looking parts.
  
 
     Posted on Google  
   
   Mix Collection 
 22 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Excellent communication and engineer turn up in time and done brilliant job. Thank you. Looking forward to working with you again.
  
 
     Posted on Google  
   
   Gillian Sparks 
 21 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. PAT Test. I asked them to give me 30 mins notice so I could get to the rental property which they kindly did. They were quick and efficient, and emailed me the PAT certificate the next day.
  
 
     Posted on Google  
   
   Shrina Tulsiani - nee Shah 
 21 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Super efficient service and they even got a certificate out to us within 24 hours. Would highly recommend!
  
 
     Posted on Google  
   
   Emilia Benjamin 
 21 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Very efficient as their name suggests. Answer the phone with an actual person with no wait time, punctual and provided certificates within 24 hours of the service happening. Would recommend
  
 
     Posted on Google  
   
   Saj Singh 
 20 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. I always use this company for servicing my rental. The bundle packages make it really affordable and their service is excellent.
  
 
     Posted on Google  
   
   Justin Langlands 
 19 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service. Competitive and professional.
  
 
     Posted on Google  
   
   Nicholas Claridge 
 19 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Elle and the team at Efficient Home Energy were great.

Prices were brilliant, next day service and great communication. Certificates were issued day after inspection and works were completed. Couldn't ask for more. Great company and will be my first port of call going forwards.

Highly recommended.

FAQs

Do I need a Gas Safety Certificate if my property only uses electricity?

If a property is entirely electric with no gas supply or meter connected, a Gas Safety Certificate is not legally required. However, if there is a capped or live gas meter present on the property—even if no appliances are hooked up—landlords must obtain a “Meter Check” certificate to verify that the dead-line infrastructure is entirely leak-free.

How long does a Gas Safety inspection take?

A standard residential gas safety check generally takes between 30 and 45 minutes. The timeline depends heavily on the accessibility and number of gas appliances (such as a boiler, gas hob, or fireplace) requiring pressure and tightness testing.

Does a Gas Safety Check (CP12) include a full Boiler Service?

No, they are distinct procedures. A Gas Safety Check is a visual and functional inspection to ensure an appliance is working safely and not leaking carbon monoxide. A Boiler Service involves deeply cleaning internal components, replacing worn seals, and optimizing performance efficiency. Bundling them together is highly recommended to satisfy both safety compliance and manufacturer warranty requirements.

What is the grace period for an expired Landlord Gas Safety Certificate?

There is no legal grace period. A Gas Safety Certificate must be renewed every 12 months. To prevent gaps in compliance, landlords can arrange an inspection up to 2 months before the current certificate expires while preserving the original expiry date (similar to a car’s MOT).

Does the new Renters’ Rights Act affect my Gas Safety Certificate requirements?

Yes, profoundly. Under the Renters’ Rights Act, failing to provide a tenant with a valid Gas Safety Certificate completely blocks your ability to serve standard eviction or possession notices through a court. Furthermore, the incoming Private Rented Sector (PRS) Database will require London landlords to physically upload and register digital proof of their annual CP12 compliance. Letting your certificate lapse is no longer just a minor oversight; it is a major legal risk that freezes your rights to manage or regain possession of your property.

My tenant refuses to grant access for the annual gas safety check. What should I do?

Legally, you are required to give your tenants a minimum of 24 hours’ written notice to inspect. If a tenant repeatedly refuses entry or ignores messages, you must show the Health and Safety Executive (HSE) that you took “all reasonable steps” to comply.

Record and save every single phone call, text message, letter, and email sent to the tenant.
Document three separate written booking attempts.
Send a formal letter explaining that the inspection is a legal safety requirement designed to protect them from gas explosions and carbon monoxide leaks.

How long must a landlord keep old Gas Safety Records on file?

By law under Regulation 36, you must securely retain copies of your Landlord Gas Safety Records for at least two years from the date of the inspection. However, regulatory guidance recommends holding onto your paper or digital records until two further inspections have been successfully completed. Maintaining an uninterrupted, multi-year history of safety compliance is your best defense if a council requests proof or a tenant attempts to dispute their onboarding documentation.

What is the difference between Immediately Dangerous (ID) and At Risk (AR) codes on a Gas Safety Certificate?

If a Gas Safe engineer identifies an structural or mechanical issue on your boiler, cooker, or line, they apply a safety classification tag:

Immediately Dangerous (ID): The appliance poses an immediate threat to life (e.g., a major gas leak or carbon monoxide spillage). The engineer must disconnect and cap off the gas supply on the spot.
At Risk (AR): A fault exists that could easily become dangerous if left unaddressed. The engineer will strongly advise turning it off, and urgent remedial repairs must be scheduled immediately.
Not to Current Standards (NCS): The installation is safe, but it doesn’t match the newest codes. This is an advisory note and counts as a Pass.

What exact information must legally appear on my completed CP12?

For a Gas Safety Certificate to stand up to legal scrutiny in court or a council audit, it must include:

The date the safety inspection was carried out.
The exact address of the rental property.
The name and signature of the inspecting engineer, alongside their unique Gas Safe Registration Number.
The full name and address of the landlord or managing agent.
A detailed list specifying the location and results of every gas appliance and flue tested.

Gas Safety Certificates Coverage Area:

All of London (within the M25) We provide Gas Safety Certificates across all London boroughs.