EPD & LCA for manufacturers — through a verifier's lens
EPD verification.EPD preparation.LCA consultancy.
14+ years on both sides of the process: on EPD preparation teams and in the independent verifier's seat. We build your study knowing which questions verification will ask.
First consultation is free · Replies within one business day · Remote, international

14+
Years of experience
200+
EPDs authored / verified
4
Verifier platforms
3
Continents: Europe, Asia, Americas
Three sentences from the field
Sound familiar?
“We thought an EPD was a certificate”
Many companies assume an EPD declares their product “green”. An EPD is not an endorsement — it is a transparent declaration. If that expectation is not corrected at the start, the process ends in disappointment.
“We've been stuck in verification for months”
Comment, revision, another comment... As verification loops multiply, the timeline stretches. The problem usually starts not in verification, but in data collected months earlier.
“Our data is scattered — where do we start?”
Energy invoices in one place, recipes in another, waste records missing. The least predictable part of the process is not verification — it is data collection.
We hear these three sentences on projects of every size. All three have the same cure: starting the process through a verifier's eyes.
The solution
We answer verification questions before they are asked
From data collection templates to allocation decisions, from background data selection to end-of-life scenarios — every step of the study is built knowing what will be scrutinised at the verifier's desk. Revision loops shrink; the timeline becomes predictable.
- 200+ EPD projects on both sides of the process
- Approved verifier on four programme operators
- EN 15804+A2 · ISO 14025 · ISO 14040/44 · ISO 21930
Approved verifier on
A typical verification comment
Example comment type from real verification practice — contains no project information.
Services
Experience on both sides of the process: as an author and as a verifier.
EPD Verification
Independent third-party verification for construction product EPDs across EPD International, EPD Hub, EPD Global and RTS EPD.
EPD Preparation
LCA modelling and EPD report creation built to pass verification — from a verifier's perspective.
LCA Consultancy
Life cycle assessment support for manufacturers in line with ISO 14040/44 and EN 15804+A2.
CBAM Default Values Tool
Filter the 11,670 official default emission values from the EU implementing regulations by sector, country and CN code — then benchmark your verified actual data against the default-plus-mark-up scenario and see your annual certificate cost difference.
What the market demands — and the answer
An EPD is no longer “nice to have” — it is the common denominator of exports, tenders and the incoming regulatory wave.

From someone who knows both sides of the process
Hello, I'm İpek. I have been working with EPD, LCA and sustainable building products for over 14 years. Throughout my career I have sat on both sides — preparing EPDs and verifying them independently. And I have seen this: the cause of a weak EPD is almost never the verification itself, but the data decisions made months earlier. I founded EPDlogy so that manufacturers can run this process in a way that is clearer, more controlled and verification-ready from day one.
İpek Göktaş Kalkan · Independent EPD Verifier & LCA Consultant
About →Resources
Practical guidance on EPD verification, LCA methodology and sustainability standards — written from a verifier's perspective.
Regulations
The Buy Clean Lesson: In the US, It Was Procurement That Made EPDs Mandatory
What grew EPDs in the US was not voluntarism but a tender rule: California's Buy Clean act requires facility-specific EPDs and a GWP cap for four material groups in public projects. The limits were updated in 2025 and tighten every three years. How the model works — and what it means for producers selling into the EU.
1 September 2026 · 6 min read
EPD Verification
How to Read an EPD: A Verifier's 10-Minute Guide
EPDs are produced, published and attached to bids — and very often misread. Where should you look before comparing two EPDs, what does the A1-A3 total say and not say, and what does the verification statement actually guarantee? The reading order of a verifier who has reviewed hundreds of them.
1 September 2026 · 8 min read
CBAM
The UK CBAM Starts in 2027: How It Differs from the EU's
The EU's will not be the only border mechanism: the United Kingdom launches its own CBAM on 1 January 2027. The design departs from the EU's on important points — a tax instead of certificates, a sterling threshold instead of tonnes, a different sector list. For producers also exporting to the UK, we compare the two regimes in one article.
1 September 2026 · 7 min read
Frequently Asked Questions
Everything you need to know about EPD verification and LCA consultancy.
What is EPD verification?
EPD verification is a mandatory independent review of an EPD before it can be published. A qualified third-party verifier checks that the LCA model, data, assumptions and report comply with the relevant PCR and EN 15804+A2.
How long does EPD verification take?
Typically 2–4 weeks, depending on the complexity of the product and the completeness of the documentation submitted. From the verifier’s chair, incomplete data documentation is the single biggest cause of delay — a complete first submission removes whole rounds of Q&A.
What is the difference between EPD preparation and EPD verification?
EPD preparation involves conducting the LCA and writing the EPD report. EPD verification is the independent review of that report by a qualified third party before publication. EPDlogy offers both — but never for the same project, to preserve verifier independence.
Which EPD programmes do you verify for?
The International EPD® System, EPD Hub, EPD Global and Building Information Foundation RTS (Finland).
What is an EPD (Environmental Product Declaration)?
An EPD is a Type III environmental declaration under ISO 14025: an independently verified report of a product’s environmental performance across its life cycle. It is based on an LCA compliant with ISO 14040/44; for construction products, EN 15804+A2 and the relevant PCR apply. The declaration is published by a programme operator and is publicly available. See our article What is an EPD? for the full picture.
Let's talk about your EPD
Tell us about your product and target market; we will come back with a clear roadmap.
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