Gas Safety Certificates (CP12)
Gas Safety Certificates(CP12) for LiverpoolLandlords
Get a legally compliant Landlord Gas Safety Certificate issued by a Gas Safe registered engineer, covering domestic and commercial properties, LPG and mains gas.
Gas Safe registered, 4.8 stars from 45 Google reviews
Gas Safe
Registered engineer
LPG & mains
Both gas types covered
Domestic &
Commercial properties
4.8/5
From 45 Google reviews
Landlord Gas Safety Certificates, done right and on time
A Landlord Gas Safety Certificate, commonly called a CP12, is the legal record confirming every gas appliance, flue and fitting in a rented property has been checked and is safe to use. It's issued by a Gas Safe registered engineer after inspecting boilers, gas fires, cookers and any other gas appliance the landlord provides, along with associated pipework and ventilation.
This service is for landlords with domestic rental properties, letting agents managing portfolios on landlords' behalf, and commercial landlords with gas appliances in properties they let out. It applies equally to properties on mains gas and those running on LPG, and to single flats through to larger multi-occupancy buildings.
A CP12 is a legal requirement renewed annually, with the certificate needing to be issued before a tenancy starts and then every twelve months after that. Landlords also need one whenever a new gas appliance is installed or when selling or letting a property with existing gas appliances. Missing the renewal date, even briefly, leaves a landlord non-compliant and exposed.
This isn't a job to leave to guesswork or an unregistered tradesperson. Only a Gas Safe registered engineer can legally issue a valid certificate, and the inspection needs to properly check appliance safety devices, ventilation, flue performance and gas tightness. A rushed or incomplete check that misses a fault leaves tenants at risk and the landlord liable.
Domestic and commercial cover
We issue certificates for domestic rental properties and commercial premises, including care homes and multi-occupancy buildings.
LPG and mains gas
Whether your property runs on mains gas or LPG, we're qualified to inspect and certify both.
Gas Safe registered inspection
Every certificate is issued following a full Gas Safe standard inspection of appliances, pipework, flues and ventilation.
Reminder-friendly scheduling
We can time your inspection ahead of your renewal date so there's no gap in your legal compliance.
What happens if a CP12 lapses
A lapsed Landlord Gas Safety Certificate isn't a paperwork technicality, it's a legal compliance failure with real consequences. Local authorities and the Health and Safety Executive can take enforcement action against landlords who let a certificate expire, and insurers can refuse to pay out on a claim involving a gas incident if the property wasn't compliant at the time.
It also has a habit of catching landlords out at the worst moment: at the point of selling a property, during a tenancy dispute, or if HSE investigates following a complaint. By then it's too late to simply book an inspection and move on, the exposure has already existed for however long the certificate has been out of date.
Legal and financial exposure
Landlords without a valid certificate can face enforcement action and unlimited fines, since gas safety compliance is a legal duty, not a recommendation.
Invalidated insurance
Many landlord insurance policies require a valid gas safety certificate, and a lapsed one can jeopardise cover in the event of a gas-related incident.
Tenant safety risk
An unchecked appliance can develop faults like poor ventilation or a damaged flue that go unnoticed without a proper annual inspection.
Complications selling or re-letting
Missing or expired certificates cause delays and awkward questions during sales, re-lettings or agency handovers, when buyers or new agents ask for records.
Our Process
The same sequence on every job, so you know exactly what happens and when.
Step 1
Booking ahead of your renewal date
Call or email us with your current certificate's expiry date, or the date your tenancy starts, and we'll book the inspection to keep you compliant.
Step 2
Full appliance inspection
Our Gas Safe registered engineer checks every gas appliance in the property, including boilers, fires and cookers you provide, along with pipework and ventilation.
Step 3
Flue and safety device testing
We test flue performance, gas tightness and appliance safety devices, checking each item is operating within safe parameters.
Step 4
Certificate issued
Once the inspection is complete and everything passes, we issue your Landlord Gas Safety Certificate, valid for twelve months from the inspection date.
Step 5
Fault reporting, if needed
If an appliance fails inspection, we explain exactly what's wrong and quote for the repair separately, so you know the full picture before anything is fixed.
What You Get
Fast turnaround
We can usually schedule your inspection promptly to hit a renewal deadline or a new tenancy start date without a scramble.
Genuine safety assurance
A proper Gas Safe inspection catches faults like poor ventilation or flue damage before they become dangerous for tenants.
Appliances that keep working
Annual checks catch minor wear before it causes a breakdown, extending the working life of boilers and other gas appliances.
Avoiding costly non-compliance
A valid certificate protects you from enforcement action and keeps your landlord insurance valid, which is far cheaper than the alternative.
One engineer for the whole portfolio
Landlords and agents managing multiple properties can use the same Gas Safe engineer across their portfolio for consistent record-keeping.
Peace of mind at renewal time
With inspections booked ahead of expiry, you're never caught out by a lapsed certificate during a tenancy or a sale.
Landlord Gas Safety Certificates in detail
What the inspection actually covers
The engineer checks each gas appliance the landlord has provided, including boilers, gas fires, hobs and ovens, along with associated pipework, flues and ventilation. This includes testing gas tightness across the system, checking flue flow and spillage, and confirming safety devices such as flame failure devices are working correctly.
Appliances that fail are recorded on the certificate along with the specific defect, and in cases of immediate danger the engineer will disconnect the appliance and advise the landlord and tenant, as required under Gas Safe procedures.
Mains gas versus LPG properties
Mains gas properties are the majority of inspections, connected to the local gas network with standard pressure and supply characteristics. LPG properties, common in rural areas or those without mains gas access, use bottled or tank-supplied gas and have different pressure and storage considerations that need specific qualifications to inspect safely.
We're qualified to certify both, so landlords with a mixed portfolio of mains and LPG properties can use a single engineer for consistency.
Domestic rental versus commercial premises
Domestic certificates typically cover a smaller number of appliances in a single dwelling. Commercial properties, including care homes and multi-occupancy buildings, often have a larger number of appliances and sometimes commercial catering equipment, which needs the additional ComCat qualifications we hold alongside standard Gas Safe registration.
We've completed gas safety work across multiple care home contracts, so we're familiar with the scheduling and access considerations that come with occupied care settings.
Timing your renewal correctly
The certificate is valid for twelve months, and the inspection for renewal can be carried out in the two months before the current certificate expires without losing the original renewal date. Booking within that window keeps continuous compliance and avoids the risk of a gap if scheduling takes a few days.
New tenancies and appliance changes
A new gas safety check is needed before a new tenancy begins if there isn't a valid, in-date certificate already covering the property. Any newly installed gas appliance also needs checking and adding to the record, which we can do at the same time as a scheduled renewal or as a standalone visit.
Related services
Gas Safety Certificates (CP12) — Your Questions Answered
How much does a Landlord Gas Safety Certificate cost?
Pricing depends on the number of appliances and the property type, domestic or commercial. Call 07475 056553 or email us for a quote based on your property.
How long does the inspection take?
A typical domestic inspection with one or two appliances takes around 30 to 45 minutes. Larger properties or commercial premises with more appliances take longer.
How often do I need a new certificate?
Every twelve months, without exception. You can renew up to two months early without losing your original renewal date.
What happens if an appliance fails the inspection?
We record the defect on the certificate and, if it presents an immediate danger, disconnect it and advise you straight away. We'll quote separately for any repair needed.
Do you certify LPG properties as well as mains gas?
Yes, we're qualified to inspect and certify both LPG and mains gas properties, domestic and commercial.
Can you handle certificates for a whole portfolio of rental properties?
Yes, landlords and letting agents managing multiple properties can use us across the portfolio, which keeps inspection standards and records consistent.
Do you do commercial gas safety certificates for care homes or restaurants?
Yes, we hold ComCat qualifications alongside Gas Safe registration and have completed gas safety work across multiple care home contracts and commercial kitchens.
Is a gas safety certificate a legal requirement?
Yes, it's a legal obligation for landlords providing gas appliances to tenants, renewed annually by a Gas Safe registered engineer.
Can you fit us in quickly if our certificate has already expired?
Yes, call 07475 056553 and we'll prioritise getting an inspection booked as soon as possible to bring you back into compliance.
Do you cover properties across Merseyside, not just central Liverpool?
Yes, including Crosby, Anfield, Everton, Bootle, Wavertree, Woolton, West Derby and Garston.
Book your Landlord Gas Safety Certificate
Gas Safe registered inspections for domestic and commercial properties, LPG and mains. Call 07475 056553 or email info@bluplumbing.co.uk.
- Free quotes; £75 diagnostic if a fault needs tracing first.
- Fixed price confirmed once the job has been seen and assessed.
- Gas Safe registered, APHC member, 4.8★ from 45 Google reviews.