Gas engineers for the bit plumbers pass on

Ring the National Gas Emergency Service on 0800 111 999 straight away — it is free and staffed 24 hours. Open doors and windows, turn the gas off at the meter if you can reach it safely, do not touch light switches or use a phone indoors, and get everybody out. Once the supply has been made safe, ring us and we will take on the repair.

Yes. Every gas job — repairs, installations, servicing, certificates and appliance connections — is carried out by a Gas Safe registered engineer. You are entitled to ask to see the card at the door, and you should ask that of anybody who turns up to work on gas.

Usually not. Most lockouts are the boiler protecting itself — low pressure, a blocked condensate in cold weather, a failed sensor or an ignition fault. Resetting it once is fine. Resetting it repeatedly is not, because you are overriding a safety device without knowing why it tripped. Tell us the code when you ring and it narrows things down before we arrive.

Depends on age, the part, and whether it is still supported. A ten year old boiler needing a common part is usually worth fixing. One needing a heat exchanger, or one where parts are obsolete, generally is not. We will tell you which yours is, including when the honest answer is that a repair keeps you going another few years.

A straight combi swap in the same position is usually a day. Moving the boiler, converting from a tank system, or fitting a cylinder is typically two to three days. You get a timescale in writing with the quote.

It is a record that a Gas Safe registered engineer has checked every gas appliance in the property. Landlords are legally required to have one renewed every 12 months for each rented property. Homeowners are not required to have one, though many do when selling.

Yes. An annual service is usually a condition of keeping a manufacturer warranty valid, and it is the cheapest way to find a fault in October rather than January.

Often, yes. It depends where the flue can terminate, whether the gas supply can be upgraded if needed, and where the condensate can drain. All three get checked before we quote, not after.

Yes — cooker and hob connections, gas fire servicing and safety checks are all gas work and all covered by the same registration.

All of them. City centre, Headingley, Horsforth, Roundhay, Chapel Allerton, Pudsey, Bramley, Morley, Rothwell, Garforth, Guiseley, Otley, Wetherby and everywhere between.