What Does Boiler Cover Include in the UK? A Plain English Guide

What Is Boiler Cover and How Does It Differ from Home Insurance?

Boiler cover is a service contract, sometimes called a boiler care plan or central heating cover, sold by energy suppliers and specialist providers. When your boiler breaks down, the provider sends a Gas Safe registered engineer to diagnose the fault, carry out the repair, and replace parts, usually without a separate call-out charge. You pay a fixed monthly or annual premium regardless of how many times you need an engineer in a given year.

Buildings insurance, by contrast, is a property insurance policy. It protects the physical structure of your home against sudden and unforeseen events such as fire, flood, or storm damage. Most buildings policies do not cover the cost of repairing mechanical or electrical breakdown of appliances, including your boiler. If your boiler simply stops working due to age or a component failure, your buildings insurer will almost certainly decline the claim. Boiler cover exists precisely to fill that gap.

Home emergency cover is a related but distinct product. It deals with urgent situations that make your home uninhabitable or pose a safety risk, such as a burst pipe flooding a room or a complete loss of heating in winter. Many home emergency policies will attend a boiler failure as an emergency callout, but the scope of repair is narrower. If the fix requires specialist parts that are not carried on the van, a home emergency provider may simply make the boiler safe and leave the full repair for a follow-up visit, which may or may not be covered under the same policy. Boiler cover, especially at the mid to premium tier, is designed for comprehensive repair rather than emergency-only attendance.

What a Standard Boiler Cover Policy Typically Includes

At the entry level, most boiler cover plans include four core elements. First, breakdown repair covers the cost of an engineer attending when the boiler stops working or develops a fault. The provider pays the engineer fee, and you pay nothing beyond your monthly premium. Second, parts and labour are included so that if a heat exchanger, printed circuit board, pressure relief valve, or pump needs replacing, the replacement part and the time to fit it are covered. Third, unlimited callouts mean you are not restricted to one or two engineer visits per year. Fourth, an annual service is included in most standard plans. During the service a Gas Safe registered engineer checks the flue, burner, gas pressure, heat exchanger, seals, controls, and safety devices to confirm the boiler is operating safely and efficiently. This matters because the Health and Safety Executive and Gas Safe Register both advise that gas appliances should be serviced annually by a registered engineer.

The Gas Safe Register is the official list of gas engineers legally permitted to work on gas appliances in the United Kingdom. It replaced CORGI registration in 2009 and is maintained under the Gas Safety (Installation and Use) Regulations 1998. Any engineer working on your boiler must be on this register. You can verify a registration at gassaferegister.co.uk by entering the engineer's licence number or by asking to see their Gas Safe ID card before any work begins.

What Premium Cover Adds: Heating Controls, Flue, and the Full System

Mid-range and premium policies extend well beyond the boiler cabinet itself. Heating controls cover includes the room thermostat, programmer or timer, thermostatic radiator valves, and sometimes smart controls such as a Nest or Hive unit, though the latter depends on the provider. The flue is the pipe that vents combustion gases from the boiler to the outside of the building. Flue repairs and replacements can be costly, particularly on balanced flues or vertical flue terminals on flat roofs, so flue inclusion is a meaningful addition at the mid tier.

Full central heating system cover goes further still. It brings radiators, pipework within the property boundary, the system pump, motorised valves, and the cold water feed tank into scope. When a radiator develops a pinhole leak or a motorised valve fails and leaves a zone of your home cold, the repair and parts are covered. Some premium plans also fold in plumbing and drainage, covering leaking pipes, blocked drains, and sometimes a limited contribution to a new boiler if the existing one is deemed beyond economic repair.

New boiler replacement guarantees are offered by a small number of providers on top-tier plans. These are subject to conditions, typically that the boiler was under a certain age when the policy began, that it has been continuously covered, and that the engineer confirms it is beyond repair. The replacement contribution is often capped, so a homeowner may still face an additional payment for installation costs or for upgrading to a higher-specification model.

Common Exclusions You Need to Know

Boiler cover contracts contain exclusions that limit the scope of cover, and reading these before signing is essential. The most common exclusions are as follows.

Boiler age limits. Providers typically will not take on a boiler that is older than 7 to 15 years, with the precise cut-off varying by provider and policy tier. Some providers will insure an older boiler but impose a higher monthly premium or an excess per callout. Others will carry out an inspection before accepting the risk. A boiler approaching the end of its expected lifespan, usually 10 to 15 years for a modern condensing boiler, represents a higher repair likelihood, which is why providers draw age lines.

Pre-existing faults. A fault that existed before the policy start date, or that an engineer identifies as having been developing for some time, is generally excluded. This mirrors the approach taken by health insurers to pre-existing conditions. If you take out cover because your boiler has already been making a banging noise or losing pressure, the provider is unlikely to cover the repair for that underlying fault.

Missed annual service condition. Many policies require you to have the boiler serviced at least once every twelve months as a condition of the cover. If the boiler has not been serviced and you make a claim, the provider may decline it or reduce the payout on the basis that regular servicing could have prevented the breakdown. Some providers conduct the service themselves as part of the plan; others require you to produce evidence of a service by a Gas Safe registered engineer.

Sludge and scale build-up. Central heating systems accumulate magnetite sludge, limescale, and other deposits over time, particularly in hard water areas. These can cause boilers to overheat, reduce efficiency, and lead to premature component failure. Most policies exclude damage directly attributable to sludge or scale on the basis that a correctly maintained and inhibited system should not have these problems. A powerflush, which clears the system of deposits, costs between £300 and £600 depending on system size and is generally not covered under boiler plans.

Non-compliant or improper installation. If the boiler was not installed to current gas safety regulations, or if subsequent pipework modifications were not carried out by a Gas Safe registered engineer, the policy will typically not cover resulting damage. The Gas Safety (Installation and Use) Regulations 1998 set out the legal requirements for installation, and departing from them voids most cover agreements.

External pipework and the gas supply. The gas meter, the supply pipe from the street, and external pipework owned by the network operator are outside the scope of any boiler cover plan. These are the responsibility of the gas transporter or your network operator. If you suspect a gas leak, the correct action is to call the National Gas Emergency Service on 0800 111 999.

Boiler Cover Versus Home Emergency Cover: Choosing the Right Product

Home emergency cover prioritises making your home safe and habitable quickly. It typically covers a wider range of emergencies beyond just heating, including electrical fuse box failures, security issues like a broken lock after a burglary, and in some versions, roof damage causing an immediate risk of water ingress. It is designed for urgency rather than depth of repair.

Boiler cover prioritises thorough repair of your heating system. It will carry out follow-up visits, source non-standard parts, and deal with faults that are inconvenient rather than immediately dangerous. For most households with a gas central heating system, standalone boiler cover offers better value for the specific risk it is managing. For households renting or for those who already have robust buildings insurance, it is worth checking whether home emergency cover is already included as a policy add-on before purchasing boiler cover separately.

Some providers have converged the two products. British Gas HomeCare, for instance, offers tiered plans that start with boiler and controls, then layer in full central heating, then add home emergency, and finally add plumbing and drainage. The Association of British Insurers notes that the boundary between service contracts and insurance policies in this market can be blurry, and consumers should check whether a plan is regulated by the Financial Conduct Authority, which would give access to the Financial Ombudsman Service if a dispute arises.

The Annual Service: Why It Matters and What It Costs

A Gas Safe registered engineer conducting a boiler service will typically work through a checklist that includes inspecting the flue and combustion chamber, checking the burner flame pattern, measuring gas pressure and flow rate, testing the safety controls and thermostats, inspecting seals and gaskets for signs of deterioration, and clearing any blockages in condensate traps. On a condensing boiler, the engineer will also check the condensate drain to ensure it is flowing correctly, a common cause of lockout faults in cold weather.

If you need to arrange a service independently, rather than through a boiler cover plan, costs vary by region and engineer. In most parts of England and Wales an annual service costs between £70 and £120. Prices at the lower end are more common in the Midlands and North of England; prices in London and the South East tend to sit at the higher end of that range. British Gas charges around £99 for a standalone service. Some energy suppliers offer a reduced-rate service to their customers. Always ask for written confirmation that the engineer is Gas Safe registered and request a copy of the service record, as this may be needed if you later take out boiler cover or sell the property.

For landlords, a gas safety check is a legal requirement under the Gas Safety (Installation and Use) Regulations 1998. A Landlord Gas Safety Record must be issued annually for each gas appliance, including the boiler. Boiler cover plans sold to landlords often include the annual gas safety check alongside the service. Private tenants should ask to see a copy of the current Landlord Gas Safety Record; landlords are required to provide it within 28 days of a request.

Cost Tiers: What You Pay and What You Get

The table below sets out typical monthly cost ranges across three tiers and maps them to inclusions. Exact premiums depend on boiler age, property size, location, provider, and any excess applied per callout.

These ranges are indicative. British Gas HomeCare 1, which covers the boiler and controls, starts at around £11 per month with an annual service included. EDF, OVO, and specialist providers such as Hometree and Warmworks operate in similar price ranges. Paying annually rather than monthly often reduces the total cost by 10 to 15 percent. Some providers offer a discount of £5 to £10 per month in the first year as an introductory rate, which rises on renewal.

An excess per claim, where you pay a set amount such as £60 or £99 before the provider covers the remainder, is another variable. A policy with a lower monthly premium but a £99 excess may cost more overall if you need two or three callouts in a year. Check the excess terms carefully before comparing headline prices.

How to Compare Policies Effectively

When assessing boiler cover, the following points help distinguish between policies that look similar on price.

Check the age limit applied to your boiler. If your boiler is ten years old, not every provider will offer standard-rate cover. Some impose a one-off inspection fee before accepting older boilers. If a provider will not cover your boiler at all, that settles the question regardless of price.

Verify whether the annual service is genuinely included or whether it is only triggered when you call to arrange it. Some providers schedule the service proactively; others require you to book it and will treat a missed service as a reason to decline a future claim.

Look at the definition of a breakdown. Some contracts require the boiler to be completely inoperative before an engineer attends. Others will respond to efficiency faults, strange noises, or intermittent operation. The latter is more useful in practice because many faults begin as intermittent problems before becoming complete failures.

Review the response time commitment. Standard plans often promise an engineer within 24 to 48 hours. Some premium plans offer same-day attendance, which is meaningful in winter. Check whether the response time commitment applies on weekends and bank holidays.

Confirm whether the policy is regulated by the Financial Conduct Authority. FCA-regulated policies give access to the Financial Ombudsman Service if a dispute arises. Service contracts that are not regulated insurance products do not carry the same statutory protection. The FCA register at register.fca.org.uk can confirm whether a provider is authorised.

When Boiler Cover May Not Be the Right Choice

Boiler cover is not automatically the most cost-effective option for every household. A new boiler installed within the past two or three years is statistically unlikely to break down and may be covered by a manufacturer warranty for the first two to ten years depending on the brand and registration. Worcester Bosch, Vaillant, and Baxi all offer extended warranties of five years or more when the boiler is registered and serviced annually by a Gas Safe engineer. During that period, paying for a separate boiler cover plan may duplicate protection already available under warranty.

Self-insuring, that is, setting aside an equivalent monthly amount into a savings account rather than paying a premium, is an option some households prefer. A mid-range boiler repair costing £200 to £500 would take two to four years of savings at £10 per month to accumulate. Whether self-insuring makes financial sense depends on your risk tolerance, the age of the boiler, and whether you have access to emergency funds.

For households in rented accommodation, boiler maintenance and repair is the landlord's responsibility under the Landlord and Tenant Act 1985, which requires landlords to keep installations for the supply of gas, water, and electricity in repair and proper working order. Tenants should not need to take out their own boiler cover for a rented property, though some may choose to add home contents or personal belongings cover for their own possessions.

Frequently asked questions

Does boiler cover include a new boiler if mine cannot be repaired?

Most standard and mid-range policies do not include a boiler replacement. Some premium plans offer a contribution toward a new boiler if the engineer confirms it is beyond economic repair, but this contribution is usually capped at a fixed amount, often between £500 and £1,000, and conditions apply around boiler age and continuous cover history. Always read the replacement clause carefully before relying on it.

Can I take out boiler cover if my boiler is more than ten years old?

Some providers will cover older boilers, but they may charge a higher monthly premium, apply a higher excess per callout, or require an inspection visit before accepting the risk. A number of providers set a hard upper age limit, typically between 7 and 15 years depending on the policy tier, and will not offer cover beyond that point. If your boiler is old, compare several providers and check the age limit in the policy terms before purchasing.

Is the annual service the same as a gas safety check?

They are related but not identical. An annual boiler service is a thorough maintenance check of the boiler's components, efficiency, and safety devices. A gas safety check, formally a CP12 or Landlord Gas Safety Record, is a legal requirement for rental properties and confirms that each gas appliance is operating safely. A service is broader in scope than a safety check. Some boiler cover plans include both for landlord customers; others include only a service. Confirm with your provider which document you will receive after the engineer's visit.

Does sludge in my radiators affect my boiler cover claim?

Yes, it can. If an engineer finds that sludge or magnetite deposits caused or contributed to the boiler fault, most providers will exclude the resulting damage from the claim on the basis that the system was not properly maintained. Adding inhibitor fluid to the system and, in heavily affected systems, arranging a powerflush from a Gas Safe registered engineer can reduce the risk of sludge-related exclusions. Keeping a record of inhibitor top-ups provides useful evidence if a dispute arises.

How do I check whether a boiler cover provider is regulated by the FCA?

Visit the FCA register at register.fca.org.uk and search by the provider's company name or trading name. If the provider is listed as authorised or registered, their boiler cover product is regulated insurance and you have access to the Financial Ombudsman Service for unresolved disputes. Some boiler cover products are sold as service contracts rather than insurance and are not FCA regulated, which limits your statutory redress options. The provider's own terms and conditions should state whether the product is regulated insurance.