Looks like they laid a prefabricated slab on top of your grass and set the equipment on it.
If that is true I would be having a few words with PB.
The grass will decompose, the slab will sink and the pipes will crack.
IF they reset your equipment, having no gap between the slab and house means you wont have a difficult strip of grass to cut.
Yes, that's exactly what they did.
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