Practical environmental engineering and compliance support for operators, developers, and regulators.`
Engineering landfill gas, biogas & compliance with substance
About Holden Environmental
Holden Environmental, founded by Marcus Holden (MCIWM, CRWM), delivers practical landfill engineering, biogas and compliance solutions.
What we do
- The Chartered Institute of Waste Management
20+
Years in Waste & Environmental Projects
Trusted
by UK & International Clients
Dozens of Permits, Variations & Compliance Reports Delivered
Specialist in GasSim, HELP & Biogas Feasibility
Our Services
Our Environmental Services
Landfill Gas & Energy
GasSim modelling, flare sizing, and gas network design to optimise recovery and ensure compliance.
Compliance & Monitoring
Groundwater, leachate, surface water, and odour monitoring with reports built for regulator approval.
AD & Biogas Upgrading
Independent support for AD developers, BioLNG feasibility, and CO₂ recovery solutions.
Our Services
Engineering & Closure
Capping design, basal liner design, and closure plans built for long-term environmental protection and regulatory acceptance.
- Capping and restoration design
- Basal liner system design
- Closure plans and post-closure strategy
- Long-term stability and compliance monitoring
Why Choose Us
Six Reasons For People Choosing Us
Regulatory Expertise
Submissions and reports built for compliance — accepted by regulators
Technical Depth
Advanced GasSim and HELP modelling plus landfill engineering design expertise.
Renewable Focus
Turning landfill gas and biogas into BioLNG and CO₂ recovery opportunities.
20+ Years Experience
Supporting UK and international projects across waste, gas, and energy.
Practical Solutions
No jargon, no overdesign — just workable strategies for operators and developers.
Trusted Partner
Independent consultancy with strong industry networks and proven delivery.
Practical solutions to difficult problems
Get A Solutions For Your Problem Today
Offices
Head Office
Phone: 07564 910185
