Stone masonry covers the building and repair of walls, boundary features, chimneys, steps, and stonework facades using natural or reconstituted stone. In and around Bristol that means a lot of Pennant sandstone and limestone work: garden walls, retaining walls on sloped plots, repointing on Georgian and Victorian terraces, and repairs to the coping and cills on older stone houses. It's a different skill set from general bricklaying. A mason needs to read how a stone wall is actually built (coursing, bonding, and what's holding the face stones to the core) before touching it, especially on anything load-bearing or over about a metre high.
When you're comparing the 8 stone masons listed for Bristol, look past the quote and check a few things: whether they've worked with the specific stone type on your property (Bath stone repairs need different mortar and technique than Pennant sandstone), whether they use lime mortar on older buildings rather than cement (cement pointing traps moisture and can spall the stone face over time), and whether retaining or freestanding walls over a metre will need building control sign-off. Ask to see photos of finished work on a similar job, not just a general portfolio, and get it in writing if the wall needs foundations or drainage work as part of the job.
Our scores weigh things like verified customer feedback, how long a business has been trading, responsiveness, and consistency of work across jobs, so you can shortlist without having to chase down five separate quotes just to compare basics. For the full ranked list with scores and reasoning, see our best masonry contractors in Bristol guide. Details on how we build these scores are on the methodology page.