Carbon Reduction Plans and embodied carbon assessments for UK contractors and construction teams, built with an engineer's eye for the drawings, not just the totals.
Four common starting points. Each one leads straight to the service, the tool or the people who handle it.
PPN 006 compliant plans for public sector contracts over £5 million a year.
Carbon Reduction Plans → Design teamEmbodied carbon assessments read from the drawings and bills of quantities.
Embodied carbon → UK importerCheck your exposure to default values before the 2027 start date.
Try the CBAM calculator → Overseas supplierCalculate your embedded emissions and get the evidence ready for independent verification.
Supplier readiness →UK central government contracts worth more than £5 million a year including VAT require a Carbon Reduction Plan before you can even be considered. No plan on file, no bid submitted, regardless of how strong the rest of it is.
Structural choices get made before anyone has calculated what they cost in carbon. By the time it is measured, the concrete is already poured and the number is academic.
A plan ready for submission, covering your baseline emissions, reduction targets and existing initiatives, built to what government procurement teams expect under PPN 006. For SME contractors and subcontractors working on public sector work.
A whole life carbon assessment of your structural design, modelled in One Click LCA against your drawings and bill of quantities, with material options compared against each other rather than reported in isolation.
Embedded emissions calculated from production data at source, not from a document upload, and prepared for independent verification. For producers exporting aluminium, cement, fertiliser, hydrogen or iron and steel into the UK, and for UK importers who want their supply chain data collected and checked directly, ahead of the UK's carbon border adjustment mechanism from 1 January 2027.
We scope the project together and confirm exactly what is needed before anything is billed.
Energy bills and existing initiatives for a Carbon Reduction Plan, or drawings and a bill of quantities for an embodied carbon assessment, whatever the job actually requires, nothing more.
Baseline emissions for a Carbon Reduction Plan, or embodied carbon for a structural assessment, modelled properly and checked before they go anywhere near a draft.
You get a document you can actually submit, walked through with you before it goes anywhere.
Why a default value isn't a safe fallback for either side, and what suppliers and UK importers should each be doing before 2027.
Read the piece
PPN 006 sets a specific, mandated format, whether you're bidding directly or your client's asking you for one. Here is exactly what it requires.
Read the piece
The honest answer isn't as simple as "timber wins." What the published studies actually show.
Read the piece
Driftwatch is a UK carbon and sustainability practice built specifically for construction and the built environment, Carbon Reduction Plans, embodied carbon assessments, and UK CBAM supplier readiness, rather than a generalist consultancy that treats construction as one sector among many.
That shows up directly in how the work gets done: reading drawings and bills of quantities rather than a spreadsheet template, questioning material assumptions the way an engineer would, and writing reports built to hold up to scrutiny from a procurement team or a structural reviewer, not just a compliance checklist.
Every deliverable is built against a named standard, not a format invented for the occasion.
Every engagement is led by an engineer who reads the drawings, questions the assumptions and signs off the report. You work with the person who does the work.
AISEP
One Click LCA certified
PRINCE2
MSc Project Management
Free tools and guides. The calculators ask for your email so we can follow up if you want us to.
See whether you are over the registration threshold and where your supply chain data is thin.
Open the calculator → ToolA quick Scope 1, 2 and 3 estimate using the 2026 UK Government conversion factors.
Open the calculator → PDF checklistWhat to ask every supplier for, sector by sector. Send it as it is.
Download the PDF → PDF guideThe number you are assigned if you say nothing, and why it matters on both sides of the sale.
Download the PDF →The practice is built specifically around construction and the built environment, Carbon Reduction Plans, embodied carbon, and UK CBAM supplier readiness for producers and importers of aluminium, cement, fertiliser, hydrogen and iron and steel. If your work sits outside that, it's worth a quick email before booking a call, so you're not paying for expertise that isn't the right fit.
A Carbon Reduction Plan usually takes one to two weeks once your data is in hand. An embodied carbon assessment depends on the size and stage of the project, confirmed on the discovery call. UK CBAM readiness timelines depend on how much supplier data is already available. Independent verification, where it applies, is carried out by an accredited verifier on their own timeline.
No. Part of the discovery call is working out exactly what's needed and what's missing, energy bills, drawings, a bill of quantities, or supplier declarations, so you're not guessing at what to gather beforehand.
Yes. It's a genuine estimate tool, not a gated sales pitch. You'll be asked for an email to see the result, used only to follow up if you want to, not added to a mailing list.
A short, informal look at your Scope 1 to 3 emissions, no commitment needed. Useful if you just want to see where you stand.
Try the calculator