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Business Details
50+ Years
experience
Your Trusted Precision Machining Partner in Letchworth Garden City
Established in 1960, Cottenden has evolved into a third-generation family-run engineering enterprise, delivering precision machining solutions to exacting standards. Our ISO 9001:2015 certification underscores our commitment to quality management systems, while our skilled workforce brings decades of expertise in working with diverse materials to tight tolerances. Specialising in manual prototype milling, CNC milling, 3D milling, and turning capabilities, we combine traditional craftsmanship with modern technology to solve complex engineering challenges. Our reputation for reliability has fostered long-term partnerships with industry-leading companies across multiple sectors. With capabilities spanning aluminium, brass, carbon fibre, steel, plastic, copper, stainless steel, alloy steels, and bronze, we maintain flexibility to accommodate evolving material requirements.

Our operational philosophy prioritises rapid quoting and turnaround times without compromising on precision or quality. This customer-centric approach has enabled us to maintain consistent service excellence for over six decades in Hertfordshire. Our facility houses both CNC and manual machining capabilities to meet varied production needs. Through generational knowledge transfer and continuous investment in technical capabilities, we remain equipped to address contemporary engineering demands while upholding traditional values. This combination of heritage and innovation positions us as trusted partners for precision engineering requirements.
Services
Milling Turning Machining Tool Making Specialist Machines
Details
  • Year established: 1960
Highlights and features
  • We have over 60 years of precision engineering experience since 1960
  • Our ISO 9001:2015 certification demonstrates quality management systems
  • We maintain both CNC and manual machining capabilities
  • Our rapid quoting and turnaround process ensures timely delivery
  • We work with diverse materials from carbon fibre to alloy steels
Associations and certifications
  • ISO 9001:2015
Services
Milling
Our milling capabilities combine manual prototype machining with advanced CNC systems to achieve precise component manufacturing. We work with metals and composites to exacting tolerances for one-off prototypes or batch production. This service supports industries requiring precision-engineered parts with tight dimensional accuracy.
Turning
Offering both CNC and manual turning capabilities, we produce precision-turned components from various materials. Our experienced engineers maintain strict quality control throughout the turning process. This service caters to clients needing accurate cylindrical components with complex geometries and surface finishes.
Tool Making
Our tool making service creates custom jigs, fixtures, and cutting tools to support precision machining operations. We design and manufacture tools that enhance production efficiency while maintaining dimensional accuracy. This service addresses specific manufacturing requirements that standard tooling cannot accommodate.
Specialist Machines
We design and build specialist machines tailored to client specifications for unique manufacturing challenges. Our engineers create bespoke solutions that integrate with existing production systems. This service provides automation and process-specific equipment to improve operational efficiency.
Machining
Our comprehensive machining service covers milling, turning, and tool making operations using conventional and CNC equipment. We maintain tight tolerances across diverse materials including metals and composites. This service delivers precision-engineered components for industries with demanding specifications.
Questions
What machining services does Cottenden offer?
We provide manual prototype milling, CNC milling, 3D milling, and turning capabilities using both automated and manual systems.
What materials can you work with?
Our facility handles aluminium, brass, carbon fibre, steel, plastic, copper, stainless steel, alloy steels, and bronze.
Are you ISO certified?
Yes, we maintain ISO 9001:2015 certification for our quality management systems.
How quickly can you complete projects?
Our streamlined process enables rapid quoting and turnaround while maintaining precision engineering standards.
What makes Cottenden different?
As a third-generation family business since 1960, we combine heritage skills with modern machining capabilities for bespoke solutions.
Can you create custom machinery?
Yes, we design and build specialist machines tailored to specific client requirements.