Hemel's Old Town and New Town are genuinely different markets. Old Town — around HP1, the Marlowes area, and the older residential streets near the high street — is predominantly established homeowners. Many are in period properties with older boilers, larger gardens, and a willingness to spend on quality trade work. The New Town areas running through HP2 and HP3 have a different character: higher-density residential, a younger demographic, but still substantial trade demand. Most Hemel tradesmen treat the whole town as one market. The ones who target each area specifically rank in both.