CELTIC Technologies Ltd

Celtic is a leading specialist remediation contractor with a proven track record over 20 years of delivering cost effective remediation schemes. We work seamlessly with you, integrating with your project team to understand your overall requirements and develop a bespoke remedial approach to deliver maximum value.

Company details

Columbus House, Greenmeadow Springs , Tongwynlais , Cardiff CF15 7NE United Kingdom

Locations Served

Business Type:
Service provider
Industry Type:
Soil and Groundwater
Market Focus:
Nationally (across the country)

Celtic is a leading specialist remediation contractor with a proven track record over 20 years of delivering cost effective remediation schemes.

We work seamlessly with you, integrating with your project team to understand your overall requirements and develop a bespoke remedial approach to deliver maximum value.

Our principle area of expertise is the on-site treatment of contaminated soil and groundwater using a variety of specialist biological, chemical and physical processes. We can also provide a full reclamation package including demolition, remediation of soil and groundwater, and site re-grading to development profiles. We manage your risks by providing fixed price contracts to achieve regulator approval, backed by a warranty.

Celtic is part of the EnGlobe Corporation, a world leader in providing integrated environmental services which operates in the UK, France, the USA and Canada. By selecting Celtic, you benefit from EnGlobe’s international experience in the successful assessment and remediation of over 6,300 sites throughout Europe, North America and North Africa; over 1,000 of which are in the UK. As part of EnGlobe, we offer financial stability and one of the largest dedicated teams of remediation experts.

Our range of remediation techniques and depth of experience is unparalleled in the UK. Our remediation designs have saved our clients millions of pounds on development costs and enhanced land value, consistently bringing sites through to construction phase ahead of programme.

By using our experience to identify and manage risk for our customers, we maximise value and certainty, and minimise programme duration. We can implement multiple technologies to address a wide and complex range of contaminants in both soil and groundwater.

We recognise that best value engineering solutions are developed through a team approach with the client and their advisors. When possible we participate in early contractor engagement to enable clients to fully develop remediation budgets and programmes.

We operate our own in-house remediation plant which provides us with the flexibility to react quickly to your requirements and allows you to benefit from our on-going technological innovation. Twenty years of successful remediation and repeat business shows that we deliver. Every time.

As one of the longest standing and most experienced specialist remediation contractors in the UK we have direct experience of solving a wide range of contaminated land problems, whether associated with complex contaminants, constrained site logistics or stakeholder issues. We have worked on a wide range of sites including gasworks, petro-chemical refineries, chemical works, waste lagoons, landfills, petrol stations, manufacturing sites, military sites and engineering works.

Our in-house design team develops focused remedial schemes which we can take through from conceptual design and regulator negotiation to full scale implementation and final validation and regulator approval. Our approach is to develop pragmatic solutions, using innovative technologies where appropriate, that focus on maximising the re-use of material on-site while minimising cost and programme.

Previous remediation contracts have ranged in value from £50k to £5.4m and our project teams are experienced in managing projects ranging from simple schemes to major projects with multiple stakeholders. The quality of our industry leading services has been recognised by numerous awards for innovation and sustainability from both remediation and engineering industry bodies.

Our commitment to Health, Safety and Quality is absolute and our customers set some of the highest standards in their sectors. We operate an Integrated Management System accredited to ISO9001, ISO14001 and OHSAS18001. Our site managers hold the SMSTS Health and Safety qualification and our engineers the SSSTS qualification Celtic is committed to the CSCS scheme and have achieved the platinum standard with over 90% of staff accredited.

We are registered with Constructionline, Achilles UVDB Verify, Work Safe and CHAS. We are licensed to undertake on-site soil and groundwater treatment under our Mobile Treatment Licenses in England and Wales (EAWML30379), Scotland (WML/L/1062905) and Northern Ireland (LN/11/35).

We have WAMITAB accredited personnel who ensure that remediation treatments are implemented to fully comply with Environment Agency requirements. In 2011, Celtic won a Bronze Performance Beyond Compliance Award as part of the Considerate Constructor Scheme.

We have experience in the design and delivery of some 35 remediation techniques for the treatment of contaminated soils,groundwater, sediment, sludges and tars.

These techniques have been proven at full commercial scale through the remediation of over 2000 sites and the on-site treatment of over 5 million tonnes of soil. Celtic has invested in over £2 million of remediation plant exclusively available to our remediation projects.

Our in-house plant allows us to deploy rapidly to site to meet your programme and avoid long lead times. By investing in, and managing, our own plant we can offer a wide range of remediation techniques at competitive rates.

We have experience in the design and delivery of some 35 remediation techniques for the treatment of contaminated soils, groundwater, sediment, sludges and tars.

These techniques have been proven at full commercial scale through the remediation of over 1,000 sites and the on-site treatment of over 5 million tonnes of soil.

Celtic has invested in over £2 million of remediation plant exclusively available to our remediation projects.

Our in-house plant allows us to deploy rapidly to site to meet your programme and avoid long lead times. By investing in, and managing, our own plant we can offer a wide range of remediation techniques at competitive rates.

In-situ soil, sediment, bedrock & sludge treatment technologies
  • Bioventing
  • Enhanced Aerobic Bioremediation
  • Enhanced Anaerobic Bioremediation
  • Chemical Oxidation
  • Soil Vapour Extraction
  • Solidification/Stabilisation
  • Biopiles
  • Composting
  • Windrow Turning
  • Landfarming
  • In-situ thermal desorption
Ex-Situ Soil, Sediment, Bedrock & Sludge Treatment Technologies
  • Separation
  • Soil Washing
  • Solidification/Stabilisation
  • Landfill Capping/Cap Enhancements/Alternatives
  • Excavation, Retrieval, & Off-Site Disposal/Treatment
  • Bioreactors
  • Constructed Wetlands
  • Ex-situ thermal desorption
In-Situ Groundwater, surface water & leachate treatment & containment technologies
  • Air Sparging
  • High Vacuum Extraction/Bioslurping/Slurping
  • Chemical Oxidation
  • Directional Wells
  • Dual Phase Extraction
  • Thermal Treatment
  • Passive/Reactive Treatment Walls
  • Physical Barriers
  • Deep Well Injection
  • Hydraulic Containment
  • Enhanced Aerobic Bioremediation
  • Enhanced Anaerobic Bioremediation
  • Monitored Natural Attenuation
  • NAPL Recovery (LNAPL/DNAPL)
  • Total fluids recovery
  • Surfactant flushing
  • Gas injection for enhanced NAPL recovery
Ex-Situ Water Treatment
  • Adsorption/Absorption
  • Advanced Oxidation Processes
  • Air Stripping
  • Granulated Activated Carbon (GAC) Adsorption
  • Ground Water Pumping & Treatment
  • Precipitation/Coagulation/Flocculation
  • Separation
  • Dissolved Air Flotation
Air Emissions / Off-Gas Treatment
  • Biofiltration
  • Oxidation
  • Gas Scrubbing
  • Vapour Phase Carbon Adsorption