Block of Flats Insurance: Why the Premium is Only Half the Story

When directors of Residents’ Management Companies (RMCs), Right to Manage (RTM) companies and freeholders review their annual block of flats insurance, one figure inevitably dominates the discussion: the premium. With service charges rising and budgets under pressure, it is natural to look for the lowest upfront cost.

However, treating block insurance as a commodity judged solely on price is a high-risk strategy. The premium is only half the story; the other half is the contract detail that determines whether your policy will protect you when a crisis hits. For property managers and freeholders, an undervalued or poorly structured policy can turn a routine maintenance issue into a serious legal and financial problem and may even expose directors to personal liability.

The Danger of the "Cheapest Price" Trap

A low premium often masks restrictive policy terms. Premiums are usually lower because the policy parameters have been adjusted, such as higher excesses or lower limits, often because of automated quotes or rigid, basic policy wordings.

If a quote looks significantly cheaper than the market, the insurer has probably limited its exposure by tightening conditions or increasing excesses. When a major incident occurs, such as a burst pipe damaging several flats, the cheapest policy can quickly become the most expensive mistake a management committee makes.

What Lies Beneath: Four Crucial Factors Beyond the Premium

To judge the true value and security of a block insurance policy, property managers and freeholders should scrutinise four critical components.

• The escape of water excess. Leaking pipes (escape of water) are the most frequent claim in multi-occupancy buildings. A high excess lowers your premium but look closely at how it is applied. Some cheaper policies apply the excess per flat affected rather than per incident. If a leak damages three flats, a £1,000 per-flat excess means the block pays £3,000 before the insurer pays anything.
• Alternative accommodation limits. If a fire or severe flood makes the block uninhabitable, the policy should cover the cost of rehousing residents. A limit of 20% of the buildings sum insured may sound generous, but in a high-rent area, or during a long rebuild delayed by material shortages, it can be exhausted, leaving the management company exposed to claims from displaced leaseholders.
• The Condition of Average. It can be tempting to understate the building’s declared value (the cost to rebuild from scratch) to save on premium. But if the building is found to be underinsured at the time of a claim, the insurer can apply the Condition of Average and reduce the payment in proportion. For example, if a building that would cost £10 million to rebuild is insured for £7.5 million, it is 25% underinsured. On a £40,000 claim, the insurer would pay only £30,000, leaving a £10,000 shortfall that leaseholders may have to fund through an emergency levy. This applies to small claims as well as large ones.
• Directors’ and Officers’ (D&O) liability. Property owners’ liability covers injuries on the premises, but it does not protect the volunteer directors of an RMC or RTM company from personal liability. Directors can be sued personally by leaseholders for alleged mismanagement, breach of duty or failure to maintain the building. D&O cover is often a separate policy or an optional extension rather than automatically included, so it is worth checking that robust cover is in place.

The Regulatory Shift: The Building Safety Act and Modern Compliance

The regulatory landscape for block management has changed significantly. The Building Safety Act 2022 places new obligations on those responsible for residential buildings in England, and building height is a key factor in which rules apply.

• Buildings above 11 metres or at least 5 storeys fall within the Act’s leaseholder protections, which limit what qualifying leaseholders can be charged for historical safety defects. Additional fire safety duties also apply to many of these buildings under the Fire Safety (England) Regulations 2022.
• Higher-risk buildings of at least 18 metres or 7 storeys with at least two residential units, face the most stringent regime. They must be registered with the Building Safety Regulator, and their Accountable Persons must assess and manage building safety risks on an ongoing basis.

Insurers are aware of these rules. Renewal premiums and terms are increasingly influenced by the quality of a block’s safety documentation, fire risk assessments (FRAs) and general compliance.

Failing to arrange adequate insurance can also breach the terms of the lease, exposing property managers and freeholders to disputes and potential legal action from leaseholders.

Defending Against Underinsurance: The Role of Regular RCAs

Volatile material costs, labour shortages and changing building regulations (such as second-staircase requirements for taller buildings) mean that standard index-linking alone may no longer keep pace with real rebuild costs.

The most reliable protection against underinsurance is a professional Reinstatement Cost Assessment (RCA).

• The three-year cycle. It is widely recommended that a full, site-based RCA is carried out at least every three years, with the figure reviewed against a rebuild cost index in the years between.

Investing in regular RCAs significantly reduces the risk of underinsurance, gives greater certainty that a claim will be paid in full, and helps protect directors against accusations that they have failed in their duties.

How a Specialist Broker Helps

A broker’s job is not just to find the cheapest quote at renewal. It is to help freeholders and managing agents build the kind of risk profile that keeps a block insurable, and competitively priced, over many years rather than one renewal at a time.

In practice, that means flagging underinsurance before it becomes a claim shortfall, knowing which insurers still have an appetite for older or listed buildings, presenting claims history in a way that gives underwriters confidence, and encouraging investment in risk management where it will genuinely improve terms.

Treating insurance as a long-term strategy rather than an annual transaction is the difference between a block that manages its premium and one that is managed by it.

Value Over Cost

Block of flats insurance is not standard home insurance multiplied by the number of flats. It is a complex commercial contract that protects a shared community and helps those managing the building meet their obligations under the lease, the Landlord and Tenant Act 1985 and the Building Safety Act 2022.

The goal should never be simply to find the cheapest policy, but the one that offers the strongest protection for your budget. Working with a specialist broker to understand the key clauses, and keeping professional valuations up to date, means that when a crisis hits, your building is genuinely protected.

Disclaimer: The information provided in this article is for general informational and educational purposes only and does not constitute formal finance, legal or regulated insurance advice. Insurance coverage is subject to specific policy terms, conditions and exclusions and underwrite appetites.