The company

Thirty years ago, when the concept of energy conservation was all but unknown and health, safety and environmental legislation in its infancy, Comid Engineering began to build its experience in the repair, reconditioning and testing of control and safety relief valves.

Since then, through countless contracts covering the whole spectrum of industrial and boiler applications in the chemical, petrochemical, oil, gas and other process industries, Comid has not only developed unrivaled specialist skills but also amassed a vast database of manufacturers' data and an in-depth understanding of plant systems and materials technology.

Comid Engineering: an open and shut case for excellence and expertise in valve repair, valve reconditioning and testing.


At Comid, quality is assured through accreditation to international standards. As well as complying, we've also helped to formulate standards, such as the QAS 3288 procedures for the reconditioning and testing of industrial valves. As independent audits have confirmed, Comid's tightly controlled procedures and skilled workforce ensure that valves are overhauled to their correct design specification.

Client Base

Ineos Chlor, Fluor, Vinyls and Salt, Lucite, AstraZeneca,  Shell UK, British Gas and Esso - all these and many more organisations trust Comid to refurbish and test their vital control and safety valves. Our ever-growing client list also includes main contractors such as Amec, Costain and Mitsui Babcock.



  • Complete in-house repair and reconditioning facility.
  • Purpose-built workshop for safety relief valve repair and testing.
  • Overhead traveling craneage.
  • Shotblast and spray paint equipment.
  • Machine tools for turning, milling, boring, drilling etc.
  • Arc and MIG welding.
  • Testing with -
    Hydraulic to 10,000 PSI
    Pneumatic to 5,000 PSI
    Vacuum to 1000 mbar
  • Skilled on-site service engineers.
  • Emergency call out facility.
  • Large stocks of resale or service exchange valves.
  • Well-stocked stores of parts and materials.

Recording System

At Comid, we never forget a valve. Data on every unit repaired or reconditioned at our service centre is recorded so that we, and our clients, can trace its complete history with us - saving time, trouble and cost when identifying a replacement or resolving a query.



Safety Valves

Please use our CONTACT FORM for enquiries regarding Valve Repair and/or Supply

Townfield Works, Greenacres Road, Oldham, OL4 2AB  Tel: +44 (0)161 624 9592 Fax: +44 (0)161 627 1620
Unit 5 District Business Park, Birchills Street, Walsall, WS2 8NG Tel: +44 (0) 1922 721649 Fax: +44 (0)1922 721936        
Registered in England No. 1664479
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