Why chimney relining (stainless) works differently in Newmarket
What makes chimney relining (stainless) in Newmarket unusual is not the technique, it is the age spread of the housing: a single route can cover 1910 brick and 2019 factory-built venting.
Air-sealing and window upgrades have made Newmarket homes far tighter than they were designed to be, and a tight house starves a natural-draft appliance of the make-up air it needs.
Post-war subdivisions across York share the same construction generation, so when one street starts showing the same defect, the neighbours usually follow within a couple of seasons.
Across Bristol-London, Stonehaven-Wyndham, Historic Downtown, Central Newmarket and Copper Hills, the housing stock changes street by street, and the correct method changes with it. A century home with a soft-brick stack does not get the same treatment as a 2010 build with a factory-built vent — using one method on both is how systems get damaged.
the practical takeaway is that a chimney relining (stainless) visit should start with an assessment, not a tool. Any crew that begins work before telling you what they found is guessing on your behalf.