Caswell Environmental Services

What Caswell Environmental Services does

Caswell Environmental Services, trading as the Caswell Group, is a UK-based private specialist contractor focused on asbestos removal, decontamination, and remediation services. Founded in 1997 and headquartered in Stevenage, the firm is positioned as one of the UK's leading providers in its niche, operating with a workforce of 101-250 employees and competing primarily in the compliance-driven British environmental services market.

The company's service offering centres on the licensed abatement of asbestos-containing materials, site decontamination, and broader environmental remediation — work that requires HSE licensing, accredited operatives, and specialized PPE/containment equipment. Underlying the service is a project-management model in which qualified supervisors oversee licensed removal crews on construction, demolition, social housing, and industrial sites, with disposal routed through licensed waste facilities. The firm's 27-year operating history and mid-market headcount suggest an established book of repeat-contract work with main contractors and property-related clients, though the source data contains no specific customer names, contract values, or pricing terms.

Revenue mechanics for a UK asbestos remediation operator of this scale are typically driven by project-based contracts (fixed-price removal, time-and-materials decontamination, or framework agreements with housing associations and FM providers), with margins reflecting disposal costs, licensing overhead, and utilization of licensed operatives. The firm is privately held, with no parent company, subsidiaries, funding rounds, or M&A activity disclosed in the source data. Notably, the company's own website at caswell-group.co.uk is currently an unrelated placeholder WordPress blog rather than a functional corporate site, which is a material gap in its digital presence relative to peer operators but does not affect the underlying operating business.

Name

Caswell Environmental Services

Website

https://caswell-group.co.uk

Company type

Private

Founded year

1997

Headcount range

101–250 employees

Short description

Caswell Environmental Services is a UK-based private specialist contractor founded in 1997 in Stevenage, providing asbestos removal, decontamination, and remediation services to construction, housing, and industrial clients with a workforce of 101-250 employees.

Ownership category

akta.pro rank

Product category

Environmental Remediation Services

NAICS

Remediation Services (56291), Remediation and Other Waste Management Services (5629), Remediation Services (562910)

SIC

Hazardous Waste Management (4955)

akta.pro primary industry

Asbestos Abatement & Removal (BPALALAA)

akta.pro secondary industries

Containment, Decontamination & Negative Air Systems (Setup/Monitoring) (BPALALAE), Decontamination & Demolition (Decommissioning, Industrial Facility Cleanup) (EUAIALAL), Regulatory Compliance, Permitting & Project Management (HazMat Abatement) (BPALALAG), Environmental Compliance, Monitoring & Field Services (Sampling/IAQ/Inspections) (IMAIAGAF)

Keywords

• Asbestos removal services
• Decontamination services
• Environmental remediation
• Hazardous material abatement
• Site remediation contractor

Headquarters

HQ city

Stevenage

HQ country

United Kingdom

HQ region

Europe

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Marketing or Sales

Core offering

Caswell Environmental Services provides asbestos removal, decontamination, and environmental remediation services to UK clients. The company specialises in the safe identification, abatement, and clean-up of hazardous materials on commercial and industrial sites, operating as a specialist contracting firm rather than a software or product vendor.

Product overview

Caswell Environmental Services operates a WordPress-based website at caswell-group.co.uk. The available source data consists primarily of a WordPress blog site with an SEO article titled 'Essential On-Page SEO Strategies for Better Search Visibility'. No distinct branded products, modules, or named service offerings were identified in the provided source content. The site functions as a basic WordPress CMS installation without any identified proprietary product portfolio.

Differentiator

Problem solved

Functional benefit

Products and services

• Asbestos Removal Services Licensed removal of asbestos-containing materials from commercial, industrial, and public-sector sites across the UK, delivered as a contracted service to organisations that need to comply with asbestos regulations.

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Direct peers

• WH Malcolm: Scotland-based demolition, asbestos, and hazardous materials contractor with UK-wide delivery. Comparable in licensed asbestos capabilities and in combining demolition with remediation scopes.
• Browntier Group: UK provider of asbestos removal, demolition, and environmental remediation services. Closely overlaps Caswell's core capabilities and serves a similar mix of construction, facilities, and public-sector clients.
• McGee Group: UK specialist demolition, decontamination, and remediation contractor. Overlaps with Caswell in decontamination and hazardous-materials scopes, particularly on complex urban redevelopment projects.
• Kaefer UK: One of the UK's largest specialist contractors for asbestos removal, decontamination, and insulation services. Directly comparable to Caswell as a multi-disciplinary licensed asbestos and industrial services provider serving the UK market.
• Jennings Group: UK asbestos removal, demolition, and strip-out contractor operating across the Midlands and beyond. Closely aligned with Caswell's core asbestos and decontamination service lines.
• Erith Contractors: UK demolition, asbestos removal, and remediation contractor operating nationally with a fleet and workforce far larger than Caswell's. Comparable in service mix and target client base, especially on integrated demolition-and-asbestos projects.
• Paul Reilly Group: Northern Ireland-based asbestos removal, demolition, and site remediation contractor with UK-wide reach. Directly comparable in service mix and in serving industrial, commercial, and public-sector clients.

Broad incumbents

• SOCOTEC UK: Large UK testing, inspection, and certification group with significant asbestos surveying, inspection, and consultancy offerings. Comparable to Caswell on the asbestos/inspection-adjacent services side and is a frequent counterparty on remediation projects.

Regional players

• Anglian Demolition & Asbestos: East Anglia-focused demolition and licensed asbestos removal contractor. Comparable to Caswell on service mix but operates in a different regional catchment within the UK.

Emerging players

• Cleanserve: Smaller UK contractor offering specialist cleaning, decontamination, and hazardous materials services. Comparable as a niche player in the decontamination/cleaning space that Caswell also serves.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights5 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Caswell Environmental Services