Arizona's monsoon season (June 15 - September 30) brings intense thunderstorms, high winds, blowing dust, and sudden downpours. Your windows are your home's first line of defense against these powerful storms. Here's how to make sure they're ready.
Signs Your Windows Need Attention
- • Visible gaps around window frames
- • Drafts even when windows are closed
- • Difficulty opening or closing windows
- • Cracked or deteriorating weatherstripping
- • Foggy or condensation between glass panes
- • Water stains on walls near windows
Pre-Monsoon Window Checklist
1. Inspect Weatherstripping
Weatherstripping deteriorates over time, especially in Arizona's extreme heat. Check the rubber or foam seals around all operable windows. If they're cracked, compressed, or missing sections, replace them before the storms arrive. Good weatherstripping prevents water infiltration and improves energy efficiency year-round.
2. Check Caulking and Seals
Examine the caulking where your window frames meet your home's exterior. Look for cracks, gaps, or areas where caulk has pulled away. Dried-out caulk lets water seep into wall cavities, potentially causing hidden damage. Re-caulk any problem areas with high-quality exterior silicone caulk.
3. Test Window Operation
Open and close each window to ensure they operate smoothly and lock securely. Windows that don't close completely or won't lock properly are vulnerable during high winds. Lubricate tracks and hinges with silicone spray if needed.
4. Examine Glass for Damage
Check all window glass for chips, cracks, or signs of seal failure (fog between panes). Even small cracks can spread rapidly when hit by wind-driven debris. Replace damaged glass before monsoon season begins.
5. Clear Window Wells and Drains
If you have basement or below-grade windows, ensure window wells are clear of debris and drains are functioning. Heavy monsoon rains can overwhelm clogged drains and flood these areas.
During a Monsoon Storm
- Close and lock all windows before the storm arrives
- Close blinds or curtains to protect against flying glass
- Stay away from windows during severe storms
- Have towels ready in case of water intrusion
Haboob Protection Tips
Arizona's infamous dust storms (haboobs) can carry fine particles that scratch glass and infiltrate even small gaps. Here's how to minimize damage:
- Seal gaps - Dust finds every opening. Ensure weatherstripping is intact.
- Close vents - Including any window vents or trickle ventilators.
- Post-storm cleaning - Clean window tracks and screens after dust storms.
- Check screens - Replace torn screens that let dust inside.
When to Call a Professional
Some issues require expert attention. Contact a window professional if you notice:
- • Visible rot or water damage around window frames
- • Windows that won't close or lock properly
- • Significant drafts that simple weatherstripping won't fix
- • Cracked or broken glass
- • Failed seals (fog or moisture between panes)
- • Single-pane windows (consider upgrading to dual-pane)
Consider Impact-Resistant Glass
For homes in areas prone to severe monsoons, impact-resistant (laminated) glass offers superior protection. This glass holds together even when broken, preventing wind and rain from entering your home and protecting against flying debris.
Both Pella and Milgard offer impact-resistant glass options suitable for Arizona's climate.
Post-Monsoon Inspection
After each major storm, do a quick walk-around to check for:
- • New cracks or chips in glass
- • Damaged screens
- • Debris accumulation in window tracks
- • Signs of water entry around frames
- • Loose or damaged caulking
Addressing minor damage quickly prevents larger problems and keeps your home protected throughout the season.