Gas Safe registered engineers from Ace Gas NW Ltd provide legally compliant gas safety certificates (CP12) for landlords and comprehensive gas safety checks for homeowners across Wigan and the North West.
Legally compliant CP12 certificates issued on completion
Gas Safe registered engineers with over 40 years experience
Fast turnaround with same-day certificates available
Competitive pricing for single properties and portfolios



If you're a landlord, the law requires you to arrange an annual gas safety check carried out by a Gas Safe registered engineer. You must provide tenants with a copy of the gas safety certificate (CP12) within 28 days of the check, or before they move in. Failure to comply can result in significant fines and prosecution. Homeowners, whilst not legally required, can also benefit from a gas safety check for complete peace of mind.
Ace Gas NW Ltd provides fully compliant gas safety certificates across Wigan and throughout the North West. Our Gas Safe registered engineers have over 40 years of combined experience and we're members of the Wigan Good Trader Scheme. We understand the importance of thorough, reliable gas safety checks and clear documentation. With 100+ five-star reviews on both Google and Checkatrade, landlords and homeowners trust us to deliver unbeatable service whilst keeping properties safe and legally compliant.
Our engineer checks every gas appliance in the property, testing for safe operation, correct ventilation, and any signs of dangerous faults or carbon monoxide risks.
We examine all gas pipework for leaks, test flue integrity and flow, and verify that all installations meet current Gas Safe standards and regulations.
You'll receive your official CP12 certificate immediately upon completion, with clear details of all appliances checked and any remedial work identified.
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What's the difference between a gas safety certificate and a boiler service?
A gas safety certificate (CP12) is a legal inspection of all gas appliances, pipework, and flues to ensure they're safe. A boiler service is a detailed maintenance procedure on your boiler specifically. Landlords require both annually – the certificate for legal compliance and the service to maintain efficiency and warranty.
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How long does a gas safety check take?
A typical domestic gas safety check takes 30 to 60 minutes depending on the number of gas appliances in the property. You'll receive your certificate immediately upon successful completion of the inspection.
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What happens if an appliance fails the gas safety check?
If we identify any appliances that are immediately dangerous (ID) or at risk (AR), we'll explain the issue clearly. For safety, we may need to isolate dangerous appliances immediately. We'll provide a quote for any necessary repairs and can usually complete the work the same day.
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How often do landlords need a gas safety certificate?
By law, landlords must arrange an annual gas safety check and provide tenants with a valid certificate. We recommend booking your inspection 10-11 months after the previous one to maintain continuity and avoid any gaps in compliance.