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The Importance of Working With a Gas Engineer It is best to work with an expert when working with gas. You can be confident that your property is secure and that you're following all laws and regulations. If you have a suspected gas emergency, call national grid on 0800 111 999. They will be able to cap your meter and advise you to contact an electrician. Gas Safety Certificates Gas safety certificates (also known as CP12 Certi
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