Our Visitors  

United States 28.6%United States
Canada 26.8%Canada
France 7.9%France
Sweden 3.3%Sweden
Germany 2.8%Germany
United Kingdom 2.5%United Kingdom
Czech Republic 2.1%Czech Republic
Belgium 1.8%Belgium
Australia 1.8%Australia
Spain 1.6%Spain

See how much energy and money and carbon you can save by making various design or remodeling changes to your home with this free new easy-to-use program.

You can draw in the floor plan of your own house, then click and drag your windows to their correct location. You can select from lists of typical wall and roof construction.

For advanced users there are more detailed design data input options and output display graphics.


30 years in biz


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SunCalc shows sun movement and sunlight phases during the given day at the given location.

Real time web analytics, Heat map tracking
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DMC Firewall is developed by Dean Marshall Consultancy Ltd