We have lost the original Corgi certificate from when our boiler was installed in 2006. I have contacted Corgi for a replacement and they say the boiler was never registered with them. The plumber emigrated some time ago, I have no idea where to!
We have a gas safety record (on Corgi paper) from shortly after and we have had the boiler serviced a couple of times for which we have the paperwork and are getting it again done next week.
Would this satisfy you as a buyer?