Clera Windows and Doors Is First Window Manufacturer in Ontario to Sell “Envirosealed Windows”

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Windows Address Growing Demand for Green Building Products

In our time of climate change and rising energy costs, more and more of us are looking to make our living spaces environmentally friendly and save money by choosing green building products. Helping to meet the growing demand is Clera Windows + Doors, which is proud to be the first window company in Ontario to sell “Envirosealed Windows”. Windows earning the Envirosealed Window label are among the most energy-efficient on the market.

In the heating and cooling of an average home, windows can account for between 10 and 25 percent of the total energy consumption. Envirosealed Windows significantly reduce energy consumption, resulting in lower heating and cooling costs and fewer greenhouse gases emitted.

Statistics point up the demand for green building products like Envirosealed Windows:

  1. Green standards are driving nearly 40 percent of home remodeling projects, with new or replacement windows representing the most-used green product, at 47 percent. That is according to the 2007 McGraw-Hill Construction “SmartMarket Report on Attitudes & Preferences for Remodeling and Buying Green Homes”.
  2. Saving one kilowatt of electricity produced from the burning of fossil fuels (such as coal or petroleum) spares our atmosphere up to one kilogram of CO2 (calculated based on statistics in the report Carbon Dioxide Emissions from the Generation of Electric Power in the United States, July 2000, Department of Energy and the Environmental Protection Agency).
  3. Green construction brings human performance benefits as well. In hospitals built green, patients recover faster and are discharged 2 ½ days earlier. In schools, students perform 20 percent better on tests. In offices, productivity increases up to 16 percent. Those stats were cited by U.S. Green Building Council (USGBC) President Rick Fedrizzi in his green construction outlook for 2008.
  4. Clera Windows + Doors is an Ontario-based manufacturer and installer of vinyl replacement windows, doors and siding. The company celebrated its 30th anniversary this year. Headquartered in Concord, Clera Windows and Doors operates 30 sales and installation offices throughout Ontario. Clera Windows and Doors began selling Envirosealed Windows in November 2007, marketing them under the company’s new Clera brand of windows, which are CSA and Energy Star approved.

John Gainham, vice president at Clera Windows and Doors, said consumers have greeted Envirosealed Windows with enthusiasm. “Homeowners want to be certain that the products they buy truly save energy”, he said. “They appreciate the assurance that comes with every Envirosealed Window — these windows make a difference for our planet, make your home more comfortable and save you money in the process”.

The Envirosealed Windows program was designed by Truseal Technologies Inc., a world leader in warm-edge spacer systems for insulating glass window units.

For more information about Clera Windows and Doors, visit them online at For further details about Envirosealed Windows, go to