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The Landlord Gas Safety Record exists for one reason: gas appliances that are neglected can leak carbon monoxide, and tenants cannot see, smell or taste it. The Gas Safety (Installation and Use) Regulations 1998 make the landlord personally responsible for an annual check of every gas appliance and flue in a let property, whether that is one flat above a shop in Walthamstow or forty units across three boroughs.
The consequences of skipping it are not theoretical. An expired certificate can invalidate landlord insurance, block a Section 21 notice (courts have refused possession claims where no valid record was served), and in the worst cases lead to prosecution, unlimited fines and imprisonment. Against that backdrop, a £75 annual inspection is not a compliance cost. It is the cheapest risk management a London landlord will ever buy.
One useful rule many landlords miss: you can renew a CP12 up to two months before it expires and keep the original renewal date. That means no lost days, and it is exactly how our reminder system schedules your renewals, ahead of the deadline rather than after the panic.
A CP12 inspection covers every gas appliance you supply in the property.
If an appliance is unsafe, the engineer classifies it under the industry's two warning categories: At Risk or Immediately Dangerous. An Immediately Dangerous appliance is disconnected with your and the tenant's knowledge, because leaving it running is not a legal option for any Gas Safe engineer. You then get a fixed quote for the remedial work, never work done first and explained afterwards. Most failures are modest: a ventilation grille painted over, a flue seal past its best. We fix the majority on the same visit or within days, and reissue the record so your compliance gap is measured in hours, not weeks.
CP12 PRICING · LONDON 2026 · FIXED
Fixed prices agreed at booking. Digital certificate issued same day.
A single-appliance certificate starts at £75, a typical flat with a boiler and gas hob runs £85 to £95, and larger properties with three or more appliances sit between £95 and £120. The arrangement most of our landlords choose is the combined visit: CP12 plus annual boiler service in one appointment, one tenant-access negotiation, two documents, priced below booking them separately. Your boiler warranty needs the service anyway; doing both together is simply the efficient version of compliance. Portfolio landlords with three or more properties get portfolio rates and a single schedule across the lot.
You book, we take the tenant's details
We arrange access directly with the tenant
Inspection, 30 to 60 minutes per property
Digital CP12 to you and your agent the same day
Two properties can be managed from a phone. Ten cannot, and this is where most London landlords quietly lose money: a certificate lapses unnoticed, a tenancy renewal stalls, an insurance question appears at exactly the wrong moment. Our portfolio service turns the whole obligation into a calendar you never have to look at. Every property’s certificate and service dates are tracked, renewals are booked automatically inside the two-month early-renewal window so original dates are preserved, and one contact handles the lot, from the studio in Stratford to the HMO in Willesden. Letting agents use the same system for managed portfolios; ask us about agent arrangements.
Managed service
Not sure where you stand? Ten seconds to find out.
It is classified At Risk or Immediately Dangerous, made safe (disconnected if immediately dangerous), and you receive a fixed remedial quote. Most failures are minor and fixed within days, with the record reissued straight after.
