Celvac are the UK water industry's confined space waste removal specialists

We serve Water (clean & sewage), Petro-chemical, Construction, Manufacturing & Food Industries in London and throughout the UK.

Highly Skilled

Celvac is proud of its professional and highly skilled team and its ability to provide innovative, safe, efficient and cost-effective solutions for all aspects of specialist industrial cleaning and waste management in London and further afield. 

Industry Leading

Using our hyper-vac technology which is designed and made in-house in London, we are the market leader in the recovery and disposal of inert, solid and liquid waste materials from confined spaces and difficult and restricted areas.

Our Services

Digester Cleaning

Celvac carries out Digester de-gritting and cleaning operations for many of the UK’s leading Water Companies and Tier 1 main contractors in London and further afield. These include:

  • Grit removal solutions
  • AD & Wastewater treatment digesters
  • ATEX/DSEAR compliant screening unit
  • Principal Contractor Duties

Filter Refurbishment

Celvac uses specialist equipment including our media waste transfer system, we carry out various media removal operations in Hammersmith, London. These include:

  • Rapid gravity filter refurbishment
  • Specialised sand transfer and placement
  • Biofor media recovery and placement
  • Carbon and Bark filter refurbishment

Pumping Station Cleaning

Celvac’s highly-trained confined space operatives in London can deal with any type, size and depth of wet well, classified to NC1, NC2, NC3 and NC4 categories, including:

  • Wet wells up to 40m deep
  • Dry wells and NRV Chambers 
  • Combined Sewer Overflows

Tank Cleaning

Celvac’s highly trained confined space entry teams in London carry out the removal of waste material from any size and type of tanks and channels, including:

  • Digestion and sludge holding tanks, 
  • SBRs and Aeration lanes, 
  • Primary and Final settlement tanks
  • Pathogen Kill Tanks

Tankering Services

Our tanker fleet is suitable for all types of bulk liquid effluent and sludge waste removal in London and consists of vacuum tankers that range in capacity from 3000 to 6000 gallons. We have experience in all aspects of tankering, including:

  • Flooding and pollution prevention
  • Removal and disposal of leachate & food waste
  • Intersite tankering & peak lopping provision
  • Hazardous and non-hazardous liquid waste

Dewatering & Grit Separation

Our in-house technology provides clients across London with waste recovery systems, separation solutions and screening options that all assist in reducing carbon footprint. Our systems have been applied to: 

  • AD and Wastewater Digester Cleans
  • Reservoir and Lagoon emptying
  • Zebra mussel removal
  • Sand filter bed removal

Confined Space Entry & Rescue Provision

Our experienced and trained entry teams in Chelsea, London, regularly access all types of confined spaces, of varying depth and size, to clean and remove waste from:

  • wet wells & pumping stations, 
  • digesters, storm tanks, aeration lanes
  • industrial vessels
  • culverts, channels and chambers.

Bespoke Design & Fabrication

Our in-house Research, Design and Build team fabricates specialist vacuum recovery systems for almost every type of operation, environment and terrain in London. As well as building them to service the delivery of clients’ contracts, we also design and build to export.

Plant Shutdown

Celvac offers a wide range of industrial plant shutdown, outage and turnaround services around London, including the following:

  • On site confined space and rescue services
  • Media removal and disposal from all types of vessels
  • Cleaning of reactors, filters, boilers, drums, screens  
  • Jetting and CCTV inspection

Culvert and Reservoir Cleaning

Celvac’s services support statutory bodies and contractors in the removal of debris, gravel and silt build up from within the UK water infrastructure.  These services include:

  • Cleaning of riverbeds, culverts and channels
  • Cleaning of Lagoons, reed beds and reservoirs
  • Cleaning of Highway structures, storm overflows and drainage systems
  • Vegetation, wood and reed removal and disposal

Smart Solutions

We offer turnkey solutions for the cleaning of digesters, sludge holding tanks, pumping stations and works, aeration lanes, channels, chambers, vessels, riverbeds and culverts.

About us

Established in 1993, our expertise have grown in the field of confined space cleaning and media removal and we can offer solutions to the most challenging of problems.

At the core of Celvac is a team of experienced and highly competent confined space personnel who are supported by a large fleet of specialist in-house designed and fabricated plant and equipment. 

Our teams have the capability and knowledge to succeed in the most demanding of environments and deal with the most complex of tasks safely.

We actively encourage innovative thinking and collaborative working practices in our organisation to ensure we build long-term successful relationships with our clients.

By driving this culture it means that our teams can respond efficiently and are prepared to deal with any problem in a logical and methodical approach, ensuring the client gets a superior service.

About us

Established in 1993, our expertise have grown in the field of confined space cleaning and media removal and we can offer solutions to the most challenging of problems.

At the core of Celvac is a team of experienced and highly competent confined space personnel who are supported by a large fleet of specialist in-house designed and fabricated plant and equipment. 

Our teams have the capability and knowledge to succeed in the most demanding of environments and deal with the most complex of tasks safely.

We actively encourage innovative thinking and collaborative working practices in our organisation to ensure we build long-term successful relationships with our clients.

By driving this culture it means that our teams can respond efficiently and are prepared to deal with any problem in a logical and methodical approach, ensuring the client gets a superior service.

News

Tenby Harbour Pumping Station

Picturesque Tenby Harbour sits in a central position in the beautiful Georgian town of Tenby, often known as “The Jewel in Pembrokeshire’s crown”. Tenby has grown to become Pembrokeshire’s most popular tourist destination and the population can easily quadruple during the summer season with all its visitors. This brings its own challenges on the sewage infrastructure and so we were tasked to carry out confined space entry to clean the pumping station that supports the harbour’s visitors, fishing and boating community.

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Safety Training & Development

Celvac colleagues recently participated in the South Wales Safety Alliance Annual Conference. Topics discussed were how to maintain a culture of employee engagement, continuously improve and successfully manage change whilst never forgetting the fundamentals of safe working practices. Titled “Protecting People and Places – 50 years after the Health and Safety at Work Act 1974”, it was fascinating to learn the reasons around the introduction of the legislation whilst remembering some of the horrific safety incidents that led to many of the improvements that we now take for granted. There was a focus on building a sustainable future in our pursuit of Net Zero and also a look towards how AI can be deployed in the workplace to enhance our safe working systems. The conference finished with a great presentation by the DCWW team, sharing how they have improved wellbeing and mental health within their workplace. Supported by exhibitors demonstrating the latest HSEW products and services, we came away feeling motivated to apply new ideas and to continue to make Celvac a safe environment for everyone.

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Trustee Directors at Celvac

Being an employee owned business means that the decisions made by our senior leadership team need to be in the best interests of Celvac’s workforce, clients and the wider community. Sustainability is an over-riding objective and every quarter the Operating Board of Celvac reports to its Trust Board, presenting an update on recent performance and the achievement of company goals.

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New Addition to the Celvac Fleet

Our custom-built hyper-vac units offer a wide range of suction capabilities that can remove all sewerage derived litter in an efficient and effective manner and can access assets in some of the remotest and restricted locations.

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Welsh Finance Awards Finalists

Delighted and proud to announce that we are finalists in the Welsh Finance Awards, in the categories of “Finance Director of the Year” and “Small Finance Team” of the Year 2024.

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Careers at Celvac

To apply for a job with Celvac Ltd, please send a cover letter together with your C.V. to: info@celvac.co.uk

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