Whether you need freeholder permission to replace a boiler depends on what your lease says. No general rule in England makes consent automatic for a boiler replacement. Check the alterations clause in your lease, then ask the freeholder or managing agent in writing before any work is booked. Building regulations are a separate matter, and they apply whatever the freeholder decides.
Do you need freeholder permission to replace a boiler in a leasehold flat?
Whether you need freeholder permission to replace a boiler depends on the wording of your lease. No general rule in England makes consent automatic for a boiler replacement. Most flats in England are leasehold, and the lease is the contract that sets out what you may alter inside the flat.
Read the alterations and improvements clauses first. Many leases forbid changes to the structure, the exterior or shared pipework without the freeholder's written consent. Some go further and cover any alteration or addition to the flat, which can catch a boiler swap even inside a cupboard.
Ask the freeholder or the managing agent in writing before any work is booked. Describe the boiler type, where it will go, and whether the flue route or terminal position changes. Keeping that request and the reply on file matters later, because a buyer's solicitor will ask for it.
Which parts of a leasehold flat are yours, and which belong to the freeholder?
A long lease normally gives you the inside of the flat, while the freeholder keeps the structure, the outside walls and the common parts. Repairs inside the demise, the area the lease grants you, are usually the leaseholder's responsibility. Structure, exterior and shared areas are usually down to the freeholder or the management company, often funded through the service charge.
The split matters for a boiler, because several parts of the job can sit outside your demise:
- a flue that passes through an external or party wall, or terminates on a shared elevation
- a condensate connection taken into a communal stack or soil pipe
- gas, cold water or heating risers that serve more than one flat
- a cylinder cupboard formed by structural walls, or fixings into them
Consent questions usually start with those items, not with the appliance itself. A boiler that stays in the same kitchen cupboard, on the same flue, touches less of the building than one moved to a different room.
Can a freeholder refuse consent for a new boiler, and can they charge for it?
Where a lease forbids improvements without a licence, that clause takes effect subject to a proviso that consent must not be unreasonably withheld. Section 19(2) of the Landlord and Tenant Act 1927 sets that out, and it extends to England and Wales. The section deals with improvements, so how your lease and the work are described matters.
The same section allows the landlord to attach conditions to consent. A landlord may require:
- a reasonable sum for damage to, or a reduction in value of, the flat or neighbouring premises
- payment of legal or other expenses properly incurred in giving consent
- an undertaking to reinstate, where the improvement adds no value to the flat
GOV.UK lists fees a landlord charges for granting approvals among administration charges, so a licence fee is a recognised item rather than something irregular. If you believe a refusal or a charge is unreasonable, the First-tier Tribunal (Property Chamber) hears leasehold disputes in England.
Freeholder consent and building regulations approval are two different things
Consent from your freeholder does not deal with the building regulations, and a compliance certificate does not deal with your lease. Replacing a gas boiler is building work in England, and replacing a fuel burning appliance is notifiable. An installer registered with a competent person scheme can self-certify that the work meets the regulations and notify the local authority. GOV.UK states that the customer receives a certificate as proof within eight weeks of the work being completed.
Manufacturer guarantee terms form a third strand of paperwork. Worcester Bosch requires installation and commissioning by a competent, officially certified installer, in line with the manufacturer's instructions, and registration of the guarantee within 30 days of installation. Annual servicing is a condition of the guarantee. Those conditions run from the installation date, whatever happened before it over consent. Our guide to the building regulations compliance certificate explains which document you should end up with.
A boiler replacement in a leasehold flat can need both a licence to alter from the freeholder and notification under the building regulations. One never replaces the other.
Which boiler changes in a flat most often need a licence to alter?
Consent is most often needed when replacing the boiler changes something beyond the appliance. The usual triggers in a leasehold flat are:
- a new or relocated flue penetration through an external or party wall, or a new terminal position on a shared elevation
- moving the boiler to another room, which changes gas, water and condensate routes
- swapping a system boiler and cylinder for a combi and removing the cylinder cupboard, which can affect a partition wall
- fitting or replacing an unvented hot water cylinder, which falls under requirement G3 of Approved Document G in England
Flue routes and terminal positions follow the boiler manufacturer's flue installation instructions, and combustion products must not re-enter the building through windows, doors or vents. Flue work is for a Gas Safe registered engineer, not for the householder. Our guide to a system to combi conversion sets out what changes inside the flat when the cylinder goes.
What happens if you replace a boiler in a leasehold flat without consent?
Carrying out work the lease says needs consent can be treated as a breach of the lease. A freeholder in England can apply to the First-tier Tribunal (Property Chamber) for an order that a breach has occurred, using the Leasehold 6 application form. Where the lease allows it, reinstatement can also be sought, which section 19(2) of the Landlord and Tenant Act 1927 contemplates for improvements that add no value.
Unapproved work also surfaces when you sell or remortgage. Conveyancing enquiries ask for the licence to alter and for the building regulations paperwork covering a replacement boiler. Retrospective consent can be requested, and the freeholder may then set conditions and recover reasonable costs.
Asking for consent to replace your boiler: what to prepare and what you can check meanwhile
Give the freeholder or managing agent enough detail to make a decision in one round. A specification an agent can pass straight to a surveyor usually saves a second exchange of letters.
- the clause in your lease that covers alterations, quoted or referenced
- the boiler make and type, and where it will be installed
- the flue route and terminal position, and whether any new penetration is proposed
- whether a hot water cylinder is being removed, replaced or newly fitted
- confirmation that the installer is Gas Safe registered
- the building regulations compliance certificate, once the work is finished
While consent is being arranged, a householder can safely check boiler pressure, the thermostat and programmer settings, the reset button, and bleed radiators. Anything involving gas, the flue or the inside of the boiler casing is work for a Gas Safe registered engineer. Under the Gas Safety (Installation and Use) Regulations 1998 as amended, gas work in Great Britain must be carried out by a Gas Safe registered engineer who is qualified for it.
Letting the flat out adds a duty of your own. Regulation 36 of those regulations requires an annual gas safety check on the appliances and flues you provide for tenants, across Great Britain. HSE treats you as a landlord where you let under a lease shorter than seven years or under a licence. Our guide to landlord gas safety in England covers the records.
A free home survey and a written fixed price for a new boiler installation set out the boiler, its position and the flue route, which is the detail a managing agent normally wants to see.
Sources
- Leasehold property: Overview - GOV.UK
- Leasehold property: Service charges and other expenses - GOV.UK
- Landlord and Tenant Act 1927, section 19 - legislation.gov.uk
- Building regulations approval: Use a competent person scheme - GOV.UK
- First-tier Tribunal (Property Chamber) - GOV.UK
- Gas Safety (Installation and Use) Regulations 1998, regulation 36 - legislation.gov.uk
- Domestic gas: frequently asked questions - HSE
- Guarantee terms and conditions - Worcester Bosch