(NC)-If any of the windows in your home are leaking air and you are thinking about replacing them, a little bit of planning will cut your energy bill and guarantee you a more comfortable, draft-free home for years to come.

When buying new windows, it's worthwhile to select the best high-performance models available. They'll pay you back in increased comfort, better draft and moisture control, improved health and lower heating and cooling costs. The difference is because of the use of insulated spacers, low-E film on the glass and an inert gas, such as argon, to fill the space between the two panes of glass. Because the inert gas stops heat transfer between the two panes, the inside pane stays much warmer and comfortable to the touch. High-efficiency windows will increase the resale value of your home by making it more comfortable, and they also help block outside noise.

Windows should be installed properly by a qualified contractor. That's where the Siding and Window Dealers Association of Canada comes in.

This association runs a quality assurance program, Window Wise™, that certifies window manufacturers and installers and guarantees their work. Ask if your installer has received Window Wise™ training and meets its standards. As far as your comfort and home energy efficiency are concerned, a high-efficiency window that is poorly installed is no better than a hole in the wall.

Every time we use energy from fossil fuels such as coal, oil and gas, we produce the greenhouse gas emissions that contribute to climate change and harm our environment. As part of Canada's effort to help the environment, Natural Resources Canada (NRCan) has developed the EnerGuide for Houses Program (EGH). Managed by NRCan's Office of Energy Efficiency (OEE), EGH can provide a wealth of unbiased, expert advice on every aspect of home energy efficiency. For unbiased, professional advice on how to save energy at home, at work and on the road, call the OEE toll-free at 1 800 387-2000, or visit the EGH Web site at http://www.windowise.com.