Literature on sustainability transitions advocates the institutionalisation of niche innovations and assigns an important role for institutional work in this respect. Previous work has conceptually and empirically substantiated a range of strategies that institutional entrepreneurs perform. However, little is known about how institutional entrepreneurs engage differently in institutional strategies across different dynamic niche contexts. We distinguish between four different niche contexts: market-based niche development, market-based regime transformation, community-based niche development and community-based regime transformation. This typology is then conceptually combined with theory on institutional entrepreneurship and institutional work to examine the diverse agential processes of institutional change through which actors shape and transform their institutional environments. The usefulness of this framework is explored in an analysis of the low-carbon building stock in the Netherlands. The analysis demonstrates that the framework offers a comprehensive approach to examine variety in the arsenal of strategies of institutional work across different contexts.