With increasing regulatory focus on waste classification and safe disposal, the proper analysis of wood waste is more important than ever. Treated wood, especially from older buildings or industrial settings, can contain hazardous substances such as heavy metals, creosote, or pesticides. Accurate classification not only ensures compliance with waste legislation but also protects workers, the environment, and downstream waste processors from exposure to harmful contaminants.
At Envirochem, we provide UKAS-accredited testing and consultancy support for wood waste classification and disposal. Whether you’re managing demolition materials, skip waste, or timber residues from manufacturing, we help you determine the most appropriate analysis route, ensuring your waste is classified accurately and disposed of legally.
What We Test For
We analyse wood waste for a range of hazardous substances, including:
- Arsenic (commonly used in wood preservatives)
- Chromium and copper (from Chromated Copper Arsenate or CCA treatments)
- Creosote and other coal tar derivatives
- Pentachlorophenol (PCP)
- Formaldehyde
- Flame retardants and pesticide residues
- Total organic carbon (TOC) and loss on ignition (LOI)
Testing requirements may vary depending on disposal routes (e.g. hazardous landfill vs. incineration), site history, or waste mix. We tailor the testing scope to match your regulatory obligations and end-use restrictions.
Our Process
We begin with a consultation to understand the composition and origin of your wood waste, as well as your disposal requirements. Based on this, we provide sampling guidance and can assist with collection if needed.
Samples are analysed in our in-house UKAS-accredited testing laboratory (No. 1227) using validated methods aligned with Environment Agency guidance. We deliver results clearly, including comparison with relevant hazardous waste thresholds, and provide guidance on classification and next steps.
When Is Testing Required?
Testing is often required in the following scenarios:
- Demolition of older buildings containing treated timber
- Clearance of fencing, decking, railway sleepers, or telegraph poles
- Mixed skip waste that includes visibly treated wood
- Waste destined for landfill, incineration, or recycling
- Projects involving the disposal of MDF, plywood, or chipboard from industrial sources
If you're unsure whether your wood waste requires testing, our consultants can advise on proportionate assessment based on Environment Agency guidance and recent waste classification rulings.
Compliance and Risk Considerations
As of July 2023, the Environment Agency requires that all wood waste from buildings constructed before 2007 be assessed for hazardous content before disposal. Certain types of treated wood are now classified as hazardous waste and must not be mixed or processed with non-hazardous streams.
Failure to carry out proper classification can result in regulatory enforcement, rejected loads, or contamination of non-hazardous waste streams. It can also expose contractors to significant liability if hazardous substances are mishandled or disposed of incorrectly.
Early testing ensures compliance, prevents costly delays, and protects both environmental and human health. Our team stays up to date with the latest Environment Agency guidance and waste legislation, helping you choose the most appropriate testing approach for your waste stream and ensuring classification is both accurate and defensible.
Why Choose Envirochem?
At Envirochem, we combine accredited laboratory capability with expert consultancy advice. Our team works with construction firms, demolition contractors, waste managers and skip operators to ensure that wood waste is tested appropriately and classified correctly.
We understand that no two waste streams are alike. That’s why we tailor our testing plans to the materials in front of you, helping you avoid unnecessary costs whilst ensuring full compliance with evolving waste regulations.
Our reports are clear, regulator-ready, and delivered with the turnaround you need to keep your project on schedule. And if you need support interpreting results or managing downstream disposal, our consultants are here to advise every step of the way.
Speak to Our Team
If you're unsure whether your wood waste requires testing, or would like support navigating the latest Environment Agency guidance, get in touch with our expert team. We’ll help you determine the right approach for your waste stream and provide reliable, regulator-ready data to keep your project compliant and on track.