Maintenance by month · Last checked: October 21, 2026

June home maintenance checklist Heat and humidity

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Timing depends on where you live. Freeze-related jobs are tied to your area's average first and last frost dates: look up your frost dates or ask your local National Weather Service office or Extension service.

This month

• ☐ Keep indoor humidity below 60% (30-50% is ideal). A humidity meter helps. [13] If you find a problem →
• ☐ Find the AC condensate drain line and make sure it's flowing, not clogged. [2] [27] If you find a problem →
• ☐ Peek into the crawl space or basement for damp spots or musty smells. [13] If you find a problem →
• ☐ Condensation on windows, walls or pipes? Find the source and dry it quickly. [13] If you find a problem →

Every month

• ☐ Check the HVAC filter. Change it if it looks dirty, and at least every 3 months. [1] [2] If you find a problem →
• ☐ Press the test button on every smoke alarm. [3] If you find a problem →
• ☐ Check CO alarms the way the maker's instructions say. [5]
• ☐ Test GFCI outlets: press TEST, then RESET. [8] If you find a problem →
• ☐ Look under sinks and around the water heater and toilets for drips. [15] If you find a problem →
• ☐ Clean the dryer lint filter every load. [11] If you find a problem →

Done by: ____________   Year: ______   Notes: ______________________________________

← May · July → · How-to fixes · Appliance Record

Sources (fetched and checked October 21, 2026)

1. ENERGY STAR, Heat & Cool Efficiently
2. ENERGY STAR, Maintenance Checklist
3. U.S. Fire Administration, Smoke Alarms
5. U.S. Fire Administration, Carbon Monoxide Safety flyer (PDF)
8. U.S. Consumer Product Safety Commission, GFCI Fact Sheet (PDF)
11. Association of Home Appliance Manufacturers, Clothes Dryer Care
13. U.S. EPA, A Brief Guide to Mold, Moisture and Your Home
15. U.S. EPA WaterSense, Home Maintenance (leaks)
27. Lennox, AC Drain Line Clogged? Here's What to Do