August brings a brief breathing room between summer heat and winter frost. While the weather stays warm, this seasonal window offers a prime opportunity to inspect a property before autumn arrives. Taking care of small tasks right now prevents costly emergency repairs when temperatures drop.

This practical late-summer checklist covers five critical areas to inspect before turning on the furnace.

  1. Clean Gutters and Inspect the Roof

Waiting until late autumn to check gutters often means working in freezing rain or dealing with ice dams later.

  • Remove Debris: Clear out summer twigs, pine needles, and dirt build-up so heavy autumn rains drain freely.
  • Check Downspouts: Flush downspouts with a garden hose to verify water flows away from the foundation.
  • Spot-Check Shingles: Look from ground level or a secure ladder for cracked, buckling, or missing shingles after intense summer storms.
  1. Verify Window and Door Seals

Leaky windows and doors waste air conditioning in August and heat in October. Finding gaps now keeps utility bills manageable.

  • The Flashlight Test: Have someone stand outside at night while shining a flashlight around door frames. If light shines through, air escapes.
  • Replace Worn Weatherstripping: Brittle or torn rubber seals lose effectiveness. Pull off old strips and apply fresh foam or rubber seals.
  • Examine Exterior Caulk: Look for cracking along window casing and apply outdoor-rated caulk to seal open seams.
  1. Service the HVAC System After Summer Strain

Air conditioning units work overtime during July and August. Transitioning directly into heating season without maintenance puts severe stress on the entire system.

  • Swap the Filter: A clogged filter forces systems to run longer, raising energy bills and risking motor damage.
  • Clear Around the Outdoor Unit: Cut back weeds, vines, and shrubs to leave at least two feet of clear space around the exterior condenser.
  • Schedule Professional Maintenance: A technician can clean internal components, check electrical connections, and verify the furnace functions safely before freezing temperatures hit.
  1. Test Smoke and Carbon Monoxide Detectors

Home fires increase during autumn and winter due to heating equipment, fireplaces, and holiday cooking.

  • Press the Test Button: Verify the audible alarm functions on every level of the home.
  • Replace Batteries: If the units beep or haven’t had fresh batteries in six months, swap them out immediately.
  • Check Expiration Dates: Most alarms last 10 years. Look at the manufacture date printed on the back of the device; replace old units completely.
  1. Inspect Exterior Faucets and Foundation Vents

Freezing temperatures cause trapped water in pipes to expand, leading to burst water lines inside crawlspaces and walls.

  • Disconnect Hoses: Remove garden hoses from exterior spigots before the first frost to let water drain completely from the pipe.
  • Look for Foundation Cracks: Check the concrete foundation for small openings where pests might try to enter as the weather cools.
  • Manage Vent Covers: Prepare to close crawlspace vents to protect plumbing from cold drafts.

The Bottom Line: Home maintenance feels simpler when completed in sunshine rather than an autumn downpour. Spending a weekend tackling these quick visual checks protects property value and keeps heating systems running efficiently through the colder months ahead.