How to Choose a UK CNC Machining Supplier: Capabilities, Certifications and Questions to Ask
A practical guide to choosing a UK CNC machining supplier: processes, materials, tolerances, certifications and the questions to ask before you shortlist.
Chappell Engineering Limited
Chappell Engineering Limited is a precision subcontract machining company based in Stonehouse, Gloucestershire, operating from a 1,500 sqm high-security facility equipped with Mazak, Doosan and Sodick machine tools, including 5-axis machining centres and wire EDM. It specialises in low-volume, high-value, complex CNC machined parts for the petro-chemical sector, with in-house CMM inspection, non-destructive and pressure testing, light fabrication and clean-room assembly, plus heat treatment, plating, painting and other metal finishing arranged through certified partners. The company holds ISO 9001:2015, ISO 14001:2015, ISO 45001:2018 and AS9100D accreditations.
27 Oct 2026 — Scheduled verification (Max). Added 5-Axis Machining, Wire EDM, 3-Axis, 5-Axis, Live Tooling, Material Certification, Heat Treatment, Plating, Painting.
27 Oct 2026 — Listing added to CNC Directory, pending verification checks.