Chimney masonry work covers the brick, mortar and metal that keep smoke out of your house and water out of the stack. In Bristol's older terraces and Victorian semis, that usually means repointing crumbling joints, rebuilding leaning or frost-damaged chimney tops, replacing cracked crowns and flaunching, fitting new pots and cowls, and renewing lead flashing where the stack meets the roof.
When you compare the six businesses listed here, check a few things first. Ask whether they work from a full scaffold or a proper roof ladder setup, since chimney work done from a ladder alone is a warning sign. Look for lime-based mortar on period homes, because hard cement mixes trap moisture and damage soft brick. Ask for written quotes that name the materials and say who handles flashing and flue liners. Photos of past stack rebuilds tell you more than a sales pitch.
Our scores pull together review history, how consistent the feedback is, and the detail each firm gives about its work. You can see how that is weighed on the methodology page. To see how the six compare side by side, go to the ranked guide to Bristol masonry contractors.