About Retrofit Sills

About company

Retrofit Sills Ltd. provide superior quality insulated window sills for the construction industry. They supply oversills for the EWI market and new build sills for both the UK and Ireland. Their window sills are light-weight, durable and eliminate cold-bridging. They can be retrofitted to existing window sills making them the ideal choice for external insulation contractors, or can be used in new builds.