I have a gas boiler in my house and I would like the existing installation to be checked. I want

Description:

I have a gas boiler in my house and I would like the existing installation to be checked. I want to determine whether it operates correctly and safely, as well as whether any adjustment or maintenance is needed. I have not noticed any specific fault, but I want a general inspection by a specialist. Please suggest to me what should be checked and whether an annual inspection is required.