Guides
These guides explain how matching, restored and contemporary knapped flintwork differ, which finishes you will see on Chilterns walls, where flint comes from, why lime mortar is used, what the terms in a flintwork spec mean, and how to spot problems like unsuitable cement pointing. Flint & Form wrote them to help you choose an approach that fits the building.
Guides
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Types of flintwork
Approaches (matching, restored, contemporary knapped) and finishes (field flint, knapped, coursed, squares).
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Where flint comes from
How flint forms in chalk, field vs quarry flint, and why colour matching matters on Chilterns walls.
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Why lime mortar on flint walls
Why sand-and-cement pointing is often removed from flint walls and replaced with lime mortar.
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Flintwork glossary
Plain definitions of flintwork terms: knapped flint, lime mortar, matching, cavity trays and more.
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Cement pointing on flint walls
How to recognise unsuitable sand-and-cement pointing, why it’s a problem, and how restoration works.
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Matching flint on an extension
What to assess before matching new flint to an existing wall, and what “seamless” really means.
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Knapped flint for a new build
How knapped flint works on new build and modern extensions, and when to choose it over matching.