CJB Refurbishment

- We have considerable experience in the refurbishment of old concrete sumps. During the 1960s and 1970s many in-ground systems were built and constructed by CJB Developments of Portsmouth, and by Environmental Engineering. - CJB Developments ceased trading many years ago and we will be pleased to advise on the refurbishment/or replacement of old plate packs, weirs, oil skimmers, flow baffle plates etc.