At Cosyseal we believe everybody's work should bring benefit to local communities and wider society. That's why we focus on Social Value throughout our company. We've set ambitious goals and we've committed to being measured and assessed externally.

For more than three decades, Cosyseal has provided unrivalled double glazing installation & repairs to Housing Association clients across London and the Home Counties. We specialise in reactive and planned window and door projects for social housing clients throughout the region. Surveyors and residents appreciate the benefits of our services too.