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European Windows & Doors in Utah
Made-to-order tilt-turn windows, folding doors and lift & slide doors, shipped to homeowners and builders in 5 Utah cities. Your contractor or an independent local installer handles installation.
City by city
Window energy rules across Utah
Each city's climate zone, the energy code it enforces for new homes, and the highest window U-factor that code allows (lower is better). SwingTilt's triple-pane windows have a U-factor of 0.19.
| City | Climate zone | Energy code for new homes | Max window U |
|---|---|---|---|
| Lehi | 5B | 2021 IRC Chapter 11 with Utah amendments (statewide) | 0.32 |
| Park City | 6B | 2021 IRC Chapter 11 with Utah amendments (statewide) | 0.32 |
| Provo | 5B | 2021 IRC Chapter 11 with Utah amendments (statewide) | 0.32 |
| Salt Lake City | 5B | 2021 IRC Chapter 11 with Utah amendments (statewide) | 0.32 |
| West Valley City | 5B | 2021 IRC Chapter 11 with Utah amendments (statewide) | 0.32 |
Checked October 2026; sources are linked on each city page. Codes change — confirm with your local building department.