Plumber in Shenley Church End

Shenley Church End has the oldest core of the four, built around the original village and church, with 1980s estate development around it. So it has both older, solid-walled property with the higher heat loss and constrained flue routing that comes with it, and conventional 1980s family housing where the second generation of boilers is now running out.

Shenley Brook End is largely 1990s, which puts it at the point where boiler, cylinder and radiators all reach end of life together.

Shenley Lodge is later again.

If you tell us which, we bring the right expectations. If you just say Shenley, we will ask.

Solid walls lose considerably more heat than cavity walls, so radiators need to be larger, and larger again now that Part L requires new heating systems designed for a 55°C flow temperature rather than the 75 to 80°C older systems ran at. In older rooms with limited wall space that is a real constraint worth resolving at design stage rather than on fitting day. See radiators.

Beyond that: chimney breasts and thick walls limiting where a boiler and flue can go, fixed soil stack positions constraining bathroom layouts, and pipework extended over decades rather than replaced, so failures cluster at old remade joints.

Second or third generation boilers, and frequently gravity hot water in the original arrangement: cylinder in the airing cupboard, tank in the loft, and a shower that has never been much good because low pressure is inherent to the design rather than a fault. Converting to an unvented cylinder is usually the biggest single improvement available.