Warmer - Secondary Glazing

Secondary glazing is a fully independent internal window, fitted on the room side of the existing primary window. This provides significant noise reduction, improved thermal performance and enhanced security.

‘Measuring carbon footprint’ and ‘becoming more sustainable’ are phrases that we hear with greater regularity. There is also growing importance of good to high EPC (Energy Performance Certificate) ratings, to ensure buildings meet acceptable standards for letting and also enhance their market value. High energy prices have put budgets of all sizes under strain and  longer term indicators suggest that energy prices will remain high. Our buildings also account for more than 40% of all carbon emissions so any method of reducing this through controlled measures or improved insulation is very desirable. 


  • Reduces heat loss
  • Minimises draughts
  • Improves comfort
  • Reduces energy bills
  • Reduces air infiltration

A fully independent well sealed frame ensures minimum air leakage and traps an insulating layer of air, which cuts down heat loss by 40-50%.  If Low-E glass is used it can improve by 60%. Sealed units can also be fitted to provide triple glazing and lower u-values.

We fit the best, best.                                                                                                                                                                    © Glasfit 2016