Frequently asked questions.

Frequently asked questions.

We work with homeowners and tenants in London to fit boilers, full heating systems, kitchens and bathrooms plus gas checks and certification (CP12) providing the very best service at the very best value.

Do I have to provide a CO alarm to my tenants?

There is no legal requirement in England and Wales for a CO alarm to be installed in rental properties with a gas appliance. However, we strongly advise landlords to install audible CO alarms in residential properties.

The only legal requirement for CO alarms in England and Wales is found in the Building Regulations and applies to solid fuel appliances that burn wood, coal, and so on.

The Smoke and Carbon Monoxide Alarm (England) Regulations 2015 went into effect on October 1, 2015. Private landlords are required to install at least one smoke alarm on each floor of their properties, as well as a CO alarm in any room where solid fuel is used. Landlords must ensure that the alarms are operational at the start of each new tenancy.

With the exception of cooking appliances, the Scottish Building Standards require the installation of a CO alarm whenever a new gas appliance is installed.

A change was made to the Housing (Scotland) Act in 2014, which went into effect on December 1, 2015, requiring private landlords to install a CO detection system in all properties they rent out where:

The property contains a fixed combustion appliance (other than one used solely for cooking).
A fixed combustion appliance is housed in a connected space, such as an integral garage.
A bathroom combustion appliance that had to be installed (the current guidelines advise they should be located elsewhere if possible). The CO alarm should be placed outside the room as close to the appliance as possible while taking into account the effect that humid air may have on the detector when the bathroom door is open. This is true for ALL fuels.
CO alarms are required in Northern Ireland when a new gas appliance is installed. This has been in effect since October 31, 2012, and no further changes are currently planned. This requirement is from Technical Document L of the Northern Ireland Building Regulations, which has been amended to include CO protection, and states:

“Wherever a combustion appliance is installed in a dwelling, reasonable provisions must be made to detect and warn of the presence of CO gas at levels harmful to people.”

When buying CO alarms for your rental property, make sure they meet British Standard EN 50291 and have a British or European approval mark, such as a Kitemark.

Be aware that CO alarm standards are much stricter now than they were a few years ago, so if you have older alarms, you should consider replacing them. Always follow the manufacturer’s instructions on how to properly install the alarm and how to check the batteries on a regular basis.