Sjoerd Keetels

Written by Sjoerd Keetels

Consultant sustainability MKI/LCA, Heijmans Infra

Last updated on 07 aug 2025

Sjoerd Keetels

More control over contract awarding

Heijmans are the creators of a good living environment where we can live healthy, work healthy and move about in a healthy way. Heijmans accomplishes this by preventing resource depletion and parting with waste. And by choosing healthy materials and reusing them as often as possible.

At Heijmans, we understand the environmental impact of our structures and projects. We measure the Environmental Cost Indicator (MKI) and Environmental Performance of Buildings (MPG). For procurement products, we request Life Cycle Assessments (LCAs) from suppliers. For projects and construction works, we collaborate with suppliers to develop detailed LCAs. This approach helps us control our environmental impact and identify reduction opportunities.

Spoorwegonderdoorgang, Amsterdam

Spoorwegonderdoorgang, Amsterdam

Sustainability becomes a competitive advantage

Sustainability performance increasingly influences tender decisions, particularly from central government clients and decentralized governmental clients like counties and municipalities. MKI has become a defining award criterion for comparing the sustainability of project quotations from different contractors.

The lower your MKI value, the higher your probability of winning the project. Success requires more than just understanding your products' MKI values—you must actively improve their environmental performance.

From external dependency to internal control

Our first LCA studies required significant time and financial investment. We depended entirely on external consultants' expertise. R<THINK changed this dynamic completely.

With R<THINK, we now perform our own LCA calculations in-house. This transformation gives us:

  • Complete control over the calculation process

  • Ability to scale up operations when needed

  • Flexibility to accelerate timelines as required

  • Gradual integration of LCA methodology into our company culture

Solar A50, Uden

Solar A50, Uden

Building expertise with expert support

R<THINK's LCA consultants provided expert support that helped us become increasingly proficient in preparing our own LCA calculations. This growing expertise enables us to offer projects with distinctive MKI values. By continuously lowering our environmental impact, we maximize our chances of winning tenders.

Solar A50, Uden (nu)

Solar A50, Uden (nu)

Measurable results and partnership value

Our partnership with R<THINK has delivered concrete results:

  • LCA calculations completed for 80% of Heijmans road specialty products

  • Dozens of successful MKI bids secured with R<THINK's support


R<THINK serves as a valuable partner with highly knowledgeable and reliable consultants who consistently support our goals. We have maintained a successful working relationship for many years.

200+ Environmental product calculations

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Environmental product calculations
50+ Verified EPDs

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Verified EPDs
1 Countries

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Countries

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