Heating and Gas Engineers Insurance
Gas work carries a consequence that no other building services trade does. A mistake with an electrical connection may cause a fire; a mistake with a flue or a combustion setting can kill a family in their sleep, and carbon monoxide claims are among the most serious in the whole of construction insurance. This is why gas work is one of the few trades where registration is a legal requirement rather than a quality mark.
The other exposure specific to this trade is the landlord gas safety record. Signing one is a formal statement that appliances and flues are safe, relied on by landlords, letting agents and tenants. If a record was issued without proper checks and something subsequently happens, the person who signed it is in a very difficult position, and that liability is professional rather than workmanship based.
We arrange cover for heating and gas engineers on domestic and commercial work, and the two things that shape the placement are your registration and scope, and how much landlord certification work you do.
What actually goes wrong
The exposures that produce claims in this trade, rather than a generic list.
Carbon monoxide
The severe exposure. Incorrect flue installation, blocked or disconnected flues, inadequate ventilation and incorrect combustion settings all allow carbon monoxide into occupied space. These claims involve serious injury or death, attract enforcement and press attention, and are defended on the quality of the records more than anything else.
Landlord gas safety records
Issuing a record is a professional certification. A record issued without proper inspection, or one that misses a defect, transfers a great deal of risk onto the engineer who signed it. Volume certification work for letting agents concentrates this exposure considerably.
Gas escapes and explosion
A leaking joint or an incorrectly capped supply can produce an explosion that destroys a building and damages neighbouring properties. Low frequency, very high severity, and the reason liability limits in this trade are set well above the value of the work.
Fire from boiler and flue installation
Flues passing through combustible structures, incorrect clearances and hot works during installation are all fire causes. Fires that develop in the void around a flue are difficult to detect early.
Escape of water from heating systems
Heating engineers face the same water exposure as plumbers. System fills, pressurisation, and disturbed pipework all cause flooding, and heating systems run through the whole building rather than one room.
The cover we arrange
Policies are put together around how you work. Employers liability is included as standard wherever you employ anyone.
Public liability
Third party injury and property damage, including carbon monoxide injury, explosion and fire. £5m is a sensible minimum in this trade given the severity of the worst case, and £10m is common on commercial work.
- Carbon monoxide injury claims
- Fire and explosion damage
- Water damage from heating systems
- Limits typically £5m or £10m
Employers liability
Legally required and included as standard at £10m. Registration and competence records are central to the underwriting, since unregistered gas work is not lawful.
- Legally required, £10m as standard
- Registered engineers and apprentices
- Labour only subcontractors
- Burns, confined spaces and manual handling
Professional indemnity
Responds to claims about certification, reports and system design. Any engineer issuing landlord gas safety records in volume carries professional exposure that public liability does not address.
- Landlord gas safety records
- System design and plant sizing
- Reports relied on by landlords and agents
- Claims made basis, run off available
Contract works
Covers installations in progress and materials on site. Boilers, cylinders and commercial plant are high value and frequently stolen from sites and vans.
- Installation in progress
- Boilers, cylinders and plant on site
- Theft of appliances and copper
- Damage before commissioning
Tools and equipment
Flue gas analysers, pressure test equipment, power tools and hand tools. Analysers require regular calibration and are expensive to replace quickly.
- Flue gas analysers and test equipment
- Power tools and hand tools
- Cover in transit and on site
- Vehicle conditions apply overnight
What an underwriter will ask
Having these to hand shortens the process considerably, and usually improves the terms.
- Turnover split between domestic, commercial and industrial gas work
- Your registration, and the categories of appliance you are qualified for
- What proportion of turnover is landlord gas safety certification
- Whether you work on commercial catering appliances or industrial plant
- Whether you install and commission, or service only
- Whether you carry out any system design or plant sizing
- Whether you install unvented hot water systems
- Whether you undertake any renewable heating work such as heat pumps
- Five years of claims, including any carbon monoxide incidents or enforcement
What moves the premium
Where the price actually comes from, and which parts of it you can change.
Domestic or commercial gas
Commercial and industrial gas work, including catering appliances and larger plant, sits well above domestic boiler work in both complexity and consequence.
Certification volume
High volume landlord certification work is a professional exposure concentrated in a small administrative activity, and it shapes the professional indemnity requirement more than the liability one.
Registration and qualifications
Current registration across the appropriate categories is effectively a precondition rather than a rating factor, but the breadth of qualification affects what can be covered.
Installation or service only
Service and repair carries a different profile from full installation and commissioning, since commissioning is where combustion and flue errors are introduced.
Claims and enforcement history
Any carbon monoxide incident or enforcement action is material and will be examined closely. Documented procedure changes afterwards matter significantly.
Conditions and exclusions that catch this trade out
Terms vary between insurers, so treat these as the questions to ask rather than a description of any one policy.
Work outside your registration
Gas work requires registration by law, and cover assumes you are working within the categories you hold. Work on appliance types outside your registration is both unlawful and likely to leave you arguing with your insurer at exactly the wrong moment.
Certification, under public liability
A landlord gas safety record that missed a defect is a professional failure. Public liability responds to injury and damage from your work, not to reliance on a certificate you issued. Engineers doing volume certification without professional indemnity have their largest administrative exposure uninsured.
The cost of correcting the installation
Putting right the flue, the joint or the setting is your cost. The injury and damage it caused is the claim. On a carbon monoxide incident this distinction is minor next to the claim itself, but it applies.
Hot works conditions
Where soldering or other hot work forms part of the installation, hot works conditions apply as they do for plumbers and roofers, including the fire watch after work ceases.
Gradual damage
Slow leaks from heating pipework causing progressive damage may fall outside cover where the policy responds only to sudden and accidental damage.
Common questions
What insurance do gas engineers need?
Public liability at £5m as a sensible minimum, given that the worst case in this trade is carbon monoxide injury or an explosion rather than property damage. Employers liability at £10m, a legal requirement and included as standard. Professional indemnity if you issue landlord gas safety records or design systems. Contract works and tools cover for installations and equipment. Registration is a legal requirement for the work itself and is assumed by any policy.
Am I liable for a landlord gas safety record I signed?
Yes, and it is one of the more significant exposures in the trade. Signing a record is a formal statement that the appliances and flues were checked and found safe. If something subsequently happens and the inspection is found to have been inadequate, the landlord, the tenant and potentially enforcement authorities all look to the engineer who signed. Because that is reliance on a certificate rather than damage caused by physical work, public liability does not respond to it and professional indemnity does.
Does my insurance cover carbon monoxide claims?
Public liability responds to bodily injury caused by your work, which includes carbon monoxide poisoning arising from an incorrectly installed or commissioned appliance or flue. These are the most serious claims in the trade, which is why the limit matters: a single incident affecting a family can exhaust a £2m limit. Insurers will scrutinise commissioning records, flue gas analyser readings and the paperwork from the visit, so retaining those records is what makes a claim defensible.
What happens if I work outside my Gas Safe registration categories?
It is unlawful, and it creates a serious insurance problem. Cover is written on the basis that you work within the categories you hold, and an insurer presented with a claim arising from work you were not registered to carry out is in a strong position to decline. If your work is expanding into commercial catering, industrial plant or appliance types outside your current registration, the registration needs extending first and the change declaring to your insurer.
Do heat pumps and renewable heating need separate cover?
They should be declared rather than assumed. Heat pump installation involves refrigerant circuits, external units often installed at height, electrical connection and system design work that differs from conventional boiler installation. Some of it may require F-Gas certification depending on the system. A policy written for domestic gas boiler work has not contemplated any of that, so if you are moving into renewable heating it is worth updating the description rather than treating it as more of the same.
Are flue gas analysers covered if stolen?
Under the tools section, subject to its conditions, and those conditions are worth reading. Vehicle warranties typically require the vehicle to be locked and often alarmed, with restrictions on leaving tools in a vehicle overnight. An analyser is expensive, requires calibration and cannot be replaced same day, so beyond the insurance question there is a practical argument for taking it out of the van. Where you rely on it daily, it is also worth checking whether the sum insured reflects replacement cost rather than what you paid years ago.
Talk to somebody who knows the trade
Tell us what you actually do and we will come back to you with cover options built around it.