| Oldham Engineering provides mechanical engineering services related to HVAC serving the Northern California area. Oldham Engineering provides mechanical engineering services related to HVAC serving the Northern California area.Manufacturing The Complete Sub-Contract Manufacturing Service Oldham Engineering Ltd., Castle Iron Works, Overens Street, Oldham, Lancashire, OL4 1LA, England. Tel: +44 (0) 161 627 5822 Fax: +44 (0) 161 626 3500.. |