Construction & Civils for UK Utilities.
Principal Contractor on live HP gas since 1963.
From deep excavations and pipe-support programmes to NRV replacement, ILI digs and scaffold habitats — we deliver the niche end of gas and utility civils, UK-wide from our Wombwell yard.
Our promise to you.
The highest-quality service from our highly experienced team — every project, every client, every time.
Services
ILI Digs on Live Gas
Safe dig exposure for In-Line Inspection pigging — identified fault locations, physical inspection, back-fill, recoat.
Pipe Support Replacement
Concrete, steel and GRP pit-wall transition systems. Blast, treat and refit metal pipe saddles with new seals.
Non-Return Valve Replacement
Remove and replace NRVs and associated pipework on National Grid compressor stations.
Heat Exchanger Replacement
Temporary & permanent pipe supports, spool-piece installation, lifting operations. Delivered across gas terminals.
Cofferdams & Klargester
Up to 10×4×3 m cofferdams. Klargester install, redundant plant decommissioning, temporary site welfare.
Compressor Station Civils
Multi-excavation programmes on live HP gas. No-dig tech via trusted sub-contract. Liaison with Coating Inspectors & PMC.
Scaffold Habitats & Blasting
Install habitats on 36" HP gas pipework. Two mobile media-blasting teams. Recoat to Coating Inspector sign-off.
Find out more →GRP Kiosks & Governor Buildings
Install GRP kiosks and door units on gas governor buildings. Permanent, low-maintenance, security-rated.
Find out more →Principal Contractor (CDM 2015)
Full PC duties — H&S plan, environmental plan, method statements, sub-contractor management, demobilisation.
Find out more →Planning your next campaign?
Speak to our project management team. A ten-minute call gives you a straight answer on fit, capacity and timeline before anyone raises a PO.
Three generations of Anderson civil engineers.
Founded by Jack Anderson in 1963, serving clients across the North of England with building and maintenance contracts. Paul Anderson joined his father in 1974, became Managing Director in 2006 and re-developed the company for the modern gas & utility market.
Joanna Anderson joined in 2013 and, on completion of her MSc in Quantity Surveying, was appointed Commercial Director at the end of 2018. Rory Anderson is the latest Anderson addition — joining site teams to gain valuable industry experience.
The company has held a contract with National Grid (and its predecessors Transco and British Gas) for over 40 years. In October 2017 we were awarded a 4-year framework across National Grid's gas & electricity networks.
The wider JAS team
Case Studies
Bacton Heat Exchanger Project
Bacton Sewage Plant Project
Carnforth NRV Project
ILI Dig Programme
Towton Pipe Support Replacement
Google Reviews
Core Capabilities
Deep Excavation
Live gas, oil & water line exposure. From trial holes to multi-excavation programmes — with or without no-dig.
Concrete Works
Equipment bases, pads, repairs. Cofferdams up to 10×4×3 m. Concrete cutting via trusted sub-contract.
Hot-Tap Support
Project-supervisor-led scope on National Grid hot-tap programmes — civils discipline for live interventions.
Principal Contractor
Full CDM 2015 PC duties — H&S plan, environmental plan, method statements, mobilisation through demobilisation.
Accreditations
UVDB Registered + UVDB Verified with Achilles — the higher Verified tier for NGT and utility supply chains.
UK-wide Delivery
Operating centre in Wombwell (S73), registered Swinton (S64). Delivered from Scotland's Central Belt to East Anglia.
Media Blasting & Recoating
Two mobile media-blasting posts & teams. Blast, prep and recoat to Coating Inspector sign-off.
Rapid Response
Crews mobilised at short notice for live-asset work. Method statements and RAMS turned around quickly.
Contact JAS
Ten-minute call, honest answer on fit, full method-statement pack on request.
Send us a brief
Our project management team will come back within one working day.