Cost of Gas Safety Certificates in 2025

Gas Safety Certificate (CP 12) is a mandatory requirement under the Gas Safety (Installation and Use) Regulations 1998. The landlords are required to get this document for their rented-out properties. A Gas Safety Certificate is valid for 12 months and needs renewal on an annual basis, before the expiry date. 

Under the Gas Safety (Installation and Use) Regulations 1998, landlords are legally bound to arrange annual gas safety inspections of all gas appliances installed in their rented properties, which can only be done by a Gas Safe Registered Engineer. The purpose of this annual inspection is to ensure that gas appliances and allied fittings, including boilers and flues, are safe for use. 

On successful completion of the annual gas safety inspection, the gas safe engineer will issue the Gas Safety Certificate, also known as the Annual Gas Safety Check Record or CP 12. The landlords are also bound to provide a copy of this certificate to the tenants. This document proves that the property was inspected for gas safety and further confirms that the appliances installed therein are gas safe. 

Being such an important and compulsory document for the landlords, it has a certain cost, which the landlords have to pay. However, the cost of a gas safety certificate in 2025 may vary based on different factors. 

Factors Affecting the Cost of a Gas Safety Certificate

The net cost of gas safety certificates depends on multiple factors, such as the location and size of the property and the number of gas appliances in use. Similarly, the cost also varies with the type of certificate required, such as Domestic or Non-Domestic. 

Let's have a brief overview of the factors affecting the cost of gas safety certificates:

• Category of Gas Safety Certificates

Mainly, the gas safety certificates can be classified into two categories, Residential and Commercial. The scope of work involved in annual gas safety inspections of both these categories differs. While the residential properties are easy to inspect for gas safety, the commercial properties may involve a bit more effort and expertise. 

Sometimes, it might be more complex in nature to handle a commercial property's gas safety inspection as compared to a simple residential home. Based on these critical aspects, the cost of commercial gas safety certificates is usually higher than that of residential properties. In some cases, the cost of commercial gas safety certificates might be considerably higher, depending on the complexity of the commercial properties. 

• Number of Gas Appliances

Another very important factor affecting the cost of gas safety certificates is the number of gas appliances in use, in a particular property. Normally, companies offer a basic cost for a domestic gas safety certificate with the assumption that it involves 1 to 3 gas appliances, such as a boiler, a gas hob, and/or a fireplace. For any extra gas appliances, the companies often charge an additional cost @ £10 per appliance or even more, based on various other considerations. 

Hence, while planning the annual gas safety inspection, you must keep in mind that the actual cost might be higher than the estimate given by the gas safety engineer. At the same time, it also needs to be ensured that no gas appliance, installed in the property can be left unattended in the annual gas safety inspection. So, don’t miss any appliance just to save the cost. 

• Repair and Maintenance of Gas Appliances

While planning the annual gas safety inspection to get a gas safety certificate, you need to keep in mind one very important issue: the repair and maintenance of gas appliances. The quoted price typically does not include the cost of any such additional work. During the course of the inspection, the engineer might detect a fault in any of the gas appliances, which need immediate repair or maintenance. 

In the event of a minor fault, engineers may sometimes resolve the issue without incurring any additional costs. However, as a trade practice, they would charge you additional costs for repairing the faulty appliance. In this case, the net cost of the annual gas safety inspection may increase. The extent of the increase in the overall cost would depend on the nature of the fault and the type of gas appliance. It may also involve replacing a part of the appliance, which will further impact the net cost of the gas safety certificate. 

• Location of the Property

The cost of a gas safety certificate may vary with the location of the property. Generally, the cost might be lower in rural areas as compared to the properties situated in urban areas. The cost may also vary within the cities; it may be higher in big cities as compared to small cities. Accordingly, the cost of a gas safety certificate in big cities such as London and Birmingham would be higher than that in small towns. 

The main reason behind this difference is the higher living costs in the big cities. Moreover, the engineers in big cities have to drive long distances and also need to pay parking charges. Another reason is the competition and demand scenario. Overhead business expenses might be another valid reason for the higher cost of gas safety certificates in big cities. 

• Number of Properties 

While a homeowner often has a single property, some landlords may possess multiple properties. In that case, the gas safety engineers may offer a reasonable discount if all your properties are inspected by them. Though not a common factor, it does have an impact on overall cost when you have more than one property. 

• Urgency of Work

Another factor affecting the cost of a gas safety certificate is the time. If you need to do it on an urgent basis, the cost may be higher. So, if it is not urgent, you should consider planning this activity well in advance. In this scenario, there will be ample time with you to find out the best affordable price. 

However, in any case, you have to conduct the annual gas safety inspection within the last two months of the currency of the existing gas safety certificate. Do consider planning timely, so that you may save some money, without compromising the deadlines. 

• Expertise of the Gas Safety Engineers

The competence and expertise of the Gas Safe-registered engineer also impact the price offered for a gas safety inspection. An engineer with good repute and more experience would typically charge more as compared to others. Similarly, some engineers possess a special expertise to deal with difficult and complex situations. Accordingly, their price would be higher. So, you may choose an engineer per your requirements, while considering the cost factor. 

What is the Cost of Gas Safety Certificates in 2025?

The actual cost of a gas certificate largely depends on the factors discussed above and may vary on a case-by-case basis. Therefore, the exact cost of a gas safety certificate cannot be determined. However, generally, a benchmark price of a gas safety certificate, you might come across in the UK in 2025, may be:

• Between £60 – £120 for a standard-sized domestic property with 1 to 2 gas appliances. 
• It may rise up to £80 – £150 in the case of a relatively larger property, with a standard number of gas appliances. 
• On the other hand, the cost might be even more than £200 in the case of a commercial property, mainly depending on its nature and complexity. 
• In the case of more than two-thirds of gas appliances, an additional cost of £10 per appliance is normally charged.

So, to get the best quote for your next annual gas safety inspection, consider the factors explained above. 

Important

• Plan the annual gas safety inspection well before the time so you can get better quotes.
• Consult more than one engineer and compare their experience and the cost quoted. Choose the best according to your requirements and affordability.
• Never miss the renewal of your gas safety certificate, just to save money. Do it timely.
• Never compromise on quality, although it may cost you a bit more. 

Importance of Gas Safety Certificates

• Being a landlord, it is your legal duty to ensure the safety of the occupants of your property against any gas-related risks. 
• It is your legal duty to keep the property gas safe.
• The Gas Safety Regulations of 1998 legally bound the landlords to conduct an annual gas safety inspection on all gas appliances installed in their rented properties and get a gas safety certificate. 
• Failure to keep the property gas safe or in the absence of a valid gas safety certificate, the landlords may have to face legal proceedings, including penalties and fines. 
• In case of a gas mishap in the absence of a valid gas safety certificate, the landlord might even have to face imprisonment. 
• You may also lose the chance of insurance compensation in the event of any gas mishap if you do not have a valid gas safety certificate. 

Conclusion

A gas safety certificate is a mandatory requirement for landlords. It is their legal as well as moral responsibility to keep the rented property safe from gas hazards. For this very important duty, they need to conduct an annual gas safety inspection of all the gas appliances installed on the property and obtain a valid gas safety certificate. It is not a one-time exercise; you have to do it on an annual basis, as the gas safety certificate is valid for 12 months and needs renewal each year. 

As you need to hire the services of a gas safe registered engineer to perform the annual gas safety inspection, it involves a certain cost, typically ranging between £60 – £120 for a standard home with 1 to 2 gas appliances. The cost may fluctuate based on different factors. You need to consider all the applicable aspects before choosing the best quote. However, it must be kept in mind that it is a mandatory requirement. So don’t miss it out just to save money.