About Us
At a:gain, we manufacture new certified building products from secondary material streams, delivering the performance, documentation, and reliability that professional construction demands.
We work with discarded materials, off-cuts, demolition glass, industrial side-streams, and post-consumer waste, and transform them through controlled industrial processes into fully certified building products. The result is not repurposed or reclaimed material. It is a new product: tested, documented, warrantied, and ready to specify on the same terms as any conventional alternative.
Founded in Denmark in 2021, a:gain serves developers, architects, and contractors who seek lower-impact solutions that integrate without friction into existing workflows, procurement processes, and technical requirement specifications.
How we work
We work like any other building product manufacturer, we just have a different starting point
Instead of using virgin materials, we begin with secondary resources: materials that would otherwise be discarded, downcycled, or incinerated, but that retain significant technical value. Through established supply chains and standardised industrial production, we turn those materials into certified building products at commercial scale.
The process is what makes the documentation possible. Every product is developed with certification, testing, and third-party verification built into the process. Products come with full technical data sheets, EPDs, installation guidance, and performance guarantees, meeting the documentation standards that developers need for compliance, architects need for specification, and contractors need on site.
In other words, products that perform on par with conventional alternatives- just with a documented lower environmental footprint.
Image / Bronsø Cladding Knots & Cracks
Image / Valhøj Skole (Bronsø)
Why it matters
The construction industry is one of the world's largest climate challenges. And one of the hardest to change
Construction accounts for around 40% of global CO₂e emissions and consumes roughly half of all raw materials extracted each year. Across the EU, the regulatory requirements are increasing - CO₂ ceilings in national building codes, the Circular Economy Act, mandatory LCA documentation, and tightening EU Taxonomy criteria are shifting sustainability from voluntary ambition to commercial requirement. Buildings that cannot demonstrate responsible material choices face increasing exposure: tighter financing conditions, stranded asset risk, and growing scrutiny from investors, tenants, and regulators alike.
The challenge has never been a lack of ambition, but a question of complexity. Construction operates within tight constraints, technical standards, certification requirements, delivery schedules and liability. Lower-impact products have struggled to scale because they ask the market to accept added complexity, incomplete documentation and unproven performance.
a:gain is built to close that gap. Out products come with a documented lower environmental impact while delivering value to our customers: For developers, it means regulatory alignment - across LCA requirements, DGNB criteria, EU Taxonomy, and ESG reporting - without introducing unnecessary project complexity. For architects, this means no change to the specification process. For contractors, it means products that arrive on schedule, install using familiar methods, and carry the same liability clarity as any other supply chain choice.
Choosing a lower-impact product should not mean taking on more risk. With a:gain, it does not.
Image / Building Green 2025 'Det Bæredygtige Element' Award
Image / Jeudan Office Østerbrogade 125 (Tystø)
In numbers
a:gain products have been delivered to more than 100 professional projects
Across offices, housing developments, schools, and public buildings, a:gain has demonstrated that secondary resources can be transformed into high-performing building products and integrated into mainstream construction without compromising on technical performance, documentation, or delivery reliability. To date, our projects have diverted more than 2,500 tonnes of glass, wood, and PET from waste streams - documented through independently verified EPDs and project-level LCA data.
Sandet / Frederiksværk, Denmark
TRÆ / Aarhus, Denmark
Fælledby Showroom / Copenhagen, Denmark
Valhøj Skole / Copenhagen, Denmark
Kontorfællesskabet Østerbrogade 125 / Copenhagen, Denmark
Hørkær Have Fælleshus / Herlev, Denmark
Søren Jensen HQ / Aarhus, Denmark
IKANO Bolig / Copenhagen, Denmark
Read more about our Vision and Mission
