Installation is not at the level I would expect from a national company. Wire left hanging loose, shoddy pinning of wire to walls, ducting poorly fitted and not all installed or capped/connected at end, marks left on ceiling, alarm sensor not reinstalled after being removed to make job easier, fitter turned up had forgotten stuff, left a total mess brushed dust into corner (including a wedding invite he had knocked of fridge) left prompt at 1800 like he had somewhere more important to be saying he would be back to finish and has not turned up to do so. Lock that was ordered at initial purchase not delivered or installed. Overall, I'm not impressed with fitting. Preinstalation page does not provide enough space for all the pictures that would assist planning, I ended up having to crop all the pictures, losing the details that would assist in the planning process.