Free window and door tools
Seven free tools for homeowners, architects, builders and developers planning high-performance windows and doors. No login, no cost.
Quote X-Ray IQ
Upload one to three window and door quotations (PDF, photo or Excel) from any supplier and compare them line by line: openings, quantities, prices, scope, performance and the fine print.
Window Code Check IQ
Look up the window energy code for any location: maximum U-factor, SHGC and skylight limits for every US county, Canadian cities, the Caribbean, Mexico and the GCC.
Glass IQ
Compare a standard double-pane window with Passive House triple-pane glazing for your climate: heat retention, solar heat gain and noise reduction.
Residential Window IQ
A window cost calculator for new homes: compares typical North American windows with European high-performance systems on thermal performance, sound, solar control, service life, HVAC bill and long-term cost of ownership.
Commercial Window IQ
A curtain wall and facade calculator for commercial projects: compares a high-performance system with a conventional baseline on energy, HVAC sizing, building performance penalties, carbon, net operating income and total cost of ownership.
Acoustic Planner IQ
A window soundproofing planner: pick the noise source, distance, window orientation, glass area and room, hear a before-and-after sample, and get the STC and OITC ratings to specify.
Lead Time Planner IQ
Works back from your installation date to the latest date to order European windows and doors, including production by material, shop drawings, shipping to your region and a delivery buffer.