Guide · Gas Safety
Boiler breakdowns: what a landlord owes, and how fast
No compliance event tests the landlord–tenant relationship like a dead boiler in January. The legal position is actually simple — heating and hot water installations are the landlord's to keep working — but the practice is all speed, communication and evidence. Here is what the duty requires, what 'reasonable time' means in a cold house, and how to run a breakdown well.
Gas Safety
Whose job is the boiler, legally?
The landlord's, throughout the tenancy: across the UK's repairing frameworks, installations for space heating and heating water sit in the category the landlord must keep in repair and proper working order. Tenancy clauses attempting to move that burden onto the tenant don't survive contact with the statutory floor — the duty is not contractable away.
The duty is triggered by notice: the landlord must act once they know or are told of the fault, which makes the reporting route part of the compliance system. A tenant who can report a breakdown in one obvious channel, and a landlord who acknowledges the same day, have already avoided half of the disputes this topic generates.
Gas Safety
How fast is fast enough?
The standard is reasonableness, and reasonableness has a thermostat: a heating failure in winter, or any loss of hot water, sits at the urgent end and is generally expected to be addressed within days, not weeks — faster where the household includes people vulnerable to cold. The same fault in July carries more latitude; the season is part of the assessment.
Reform across the sector is pushing repair expectations toward defined timescales rather than open-ended reasonableness, and the direction of travel is unmistakable: faster, evidenced responses to health-affecting hazards, of which a cold home is the canonical example. Landlords who already run breakdowns with urgency have nothing to change when expectations formalise.
Gas Safety
Who is allowed to work on the boiler?
For anything gas: a Gas Safe registered engineer, without exception — the register is the legal gateway to gas work, and a landlord who sends a general handyman to a gas boiler has converted a breakdown into an offence. Checking the engineer's registration and gas-boiler competence takes a minute against the ID card.
The one thing the landlord (or tenant) can legitimately do first is the non-gas triage: checking the thermostat, the pressure gauge against the manual, the programmer and the electrical supply. A meaningful share of 'breakdowns' are pressure top-ups and tripped switches — a triage script in the property pack saves callout fees and cold nights alike.
Gas Safety
What interim measures should a landlord provide?
When the fix can't be same-day, the gap needs managing: temporary electric heaters for the main living spaces is the established interim measure for lost heating, and it converts a potential hazard into an inconvenience. Landlords who deliver heaters unprompted defuse most of the tension a multi-day repair otherwise generates.
Interim measures also mark the difference between delay and neglect in any later scrutiny: a landlord who acknowledged promptly, booked the engineer, supplied heaters and communicated the parts timeline has met the duty even though the boiler stayed dead for a week. The same week with silence and no mitigation reads very differently.
Gas Safety
What happens when the fault needs parts or a replacement?
Parts delays are real and defensible when evidenced: the engineer's diagnosis, the order confirmation and the fitting date form a timeline that shows continuous progress. What the timeline must not contain is dead air — days where nothing was ordered, chased or communicated are the days a tribunal or ombudsman would later count.
Replacement decisions deserve a compliance lens as well as a cost one: a new boiler means installation certification, notification into the property's records, updated appliance details for the next gas safety check, and — chosen well — an efficiency step that helps the property's energy position. The breakdown is a bad day; the replacement is a ten-year decision.
Gas Safety
How does a breakdown interact with the gas safety regime?
The repair and the annual check are separate obligations that feed one file: the engineer's breakdown paperwork joins the service history, and if the annual record is near renewal, completing the check during the repair visit is efficient and clean. A breakdown never substitutes for the check — but it can conveniently host one.
Repeated breakdowns are data the compliance system should hear: an appliance failing seasonally is telling the landlord something about age, sizing or system health that the annual check alone may not capture. The service history read across years — not each callout in isolation — is what turns reactive repairs into a replacement plan made on schedule.
Gas Safety
What should the breakdown record contain?
Dates throughout: the report, the acknowledgement, the triage, the engineer visit, the diagnosis, any parts order, the interim heaters, the completion and the tenant's confirmation that heat and hot water are restored. One thread of evidence, assembled as it happens — because reconstructing it later, in a dispute, is when it's least available.
The record's value compounds across the portfolio: breakdown response is one of the behaviours tenants judge landlords on most heavily, and the landlord who can show — not assert — a pattern of same-day acknowledgement and fast resolution holds evidence that serves everything from deposit disputes to licensing fit-and-proper questions. Speed, documented, is reputation.
Need the certificate itself?
The Gas Safety Certificate (CP12) page covers cost, process and every UK area we serve.
FAQ
Related questions, answered
Who can carry out a gas safety check in your area?
Only an engineer on the Gas Safe Register may legally carry out landlord gas safety checks anywhere in the UK, including your area. Always ask to see the engineer's Gas Safe ID card — you can verify it on the official register.
My your area property has no gas supply — do I still need a CP12?
No. If the property has no gas supply or gas appliances, the gas safety regulations do not apply. If the supply is merely capped but a live meter remains, taking professional advice is sensible before assuming you are exempt.
How long must I keep gas safety records?
Keep each record for at least two years. Because defects and history can matter in disputes, many landlords keep the full chain of records for the life of the tenancy — digital copies are fine.
Is a gas safety check the same as a boiler service?
No. The safety check confirms appliances are safe to use; a service is a maintenance clean and inspection of the boiler itself. Many landlords in your area book both together because the engineer is already on site, but only the safety check is a legal requirement.
How long does a gas safety check take?
Typically around 30 to 60 minutes for a property with a boiler and one or two additional gas appliances. More appliances, or access issues, extend the visit.
What does the gas safety record actually include?
It lists each appliance and flue checked, the checks performed, defects found and action taken, the engineer's name, registration number and signature, the property and landlord details, and the date of the check.
Book it
Ready to act on this? The pillar page covers the certificate end to end, with every UK area linked: Gas Safety Certificate (CP12).