Actually no. For those of us who remember the conversion (often spectacular, with the residual town gas being flared off from temporary chimneys in the street!), the complete costs were borne by the gas industry, then nationalised. They met all the labour and component costs, which for some oddball installations, like gas lighting, led to some custom manufacturing. This occurred in all those places which still had gas street lighting as well (London, and I believe Nottingham, still had extensive networks then). I don't think any gas was abandoned to electric because it was too expensive to convert. There were some even more oddball gas usages that were handled; if any gas device could not be converted then new equivalent gas appliances were supplied for free, leading to some people with very old gas cookers which did not have substitute parts available being given new cookers for free, and I seem to recall something similar for gas lights.