The gas connections online application will be unavailable from 07:00 hrs on 21st November to 07:00 hrs on 22nd November due to system maintenance. We apologise for any inconvenience this may cause. Our enquiry line is open Mon-Fri 08:00-18:00hrs. Please telephone 0870 903 9999 to speak to one of our advisors. Alternatively please email us at cos.enquiries@uk.ngrid.com. We aim to respond on the next working day.