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How to Plan a Double-Glazing Installation When planning a double-glazing installation there are a variety of elements that impact the costs. It is recommended to compare quotes from different companies and choose the best design for your home. You should consider replacing your windows with energy-efficient glass and argon gas to reduce heating bills. Also, draught-proof your building to maximize the use of your windows. 1. Energy efficiency Double glazing is a very popular option because of it