If it’s products and labour Get the sparky to purchase conduit. If he buys excessive he can preserve the surplus. But affordable oval conduit from Screwfix is really a pig to work with I locate and bends/crimps itself Otherwise dealt with with care. Is likely to be value attempting other https://titusevmcp.humor-blog.com/27186561/how-much-you-need-to-expect-you-ll-pay-for-a-good-oval-conduit