If a previous certificate exists, consumer unit upgrades on a bungalow usually starts by checking whether it still reflects reality. Materials and methods we spec on bungalow work: metal-clad 18th Edition CU; SPD retrofit; outbuilding sub-board with a dedicated RCD. On 1970s estates around Hengoed in particular, priced against your bungalow's specific construction, not a template tends to shape the plan more than the specification does. The materials rarely change; the route and the access do. It is the difference between a fixed price and an estimate.
Anything we recommend is tied to a specific finding rather than to a general principle. Nothing about it is unusual for property of that age. Consumer unit upgrades on a bungalow is one of the more commonly misquoted jobs, largely because nobody tests before pricing it.



