My house is just under 2 years old and I was thinking the boiler should have its first service sometime. Then I discovered there is no way to remove the front cover of the boiler without dismantling the kitchen cabinets! You see, the boiler guy installed the boiler. Weeks later they kitchen guys installed the kitchen wall cabinets. The top of the boiler is a couple if inches too high, so the top of the cabinet has been contoured around the shape of the boiler. The cover is the type that slides horizontally out. These pictures show it a bit better.
I could call the builders back but their approach to snags usually involves messing things up with unsuitable tools and patching them up with sealant or whatever comes to hand.