How to Do a Full Exterior Walk-Around
Your home's exterior takes the full force of winter weather—wind, ice, snow, and fluctuating temperatures all leave their mark. A thorough spring walk-around lets you catch siding damage, rotting trim, failed caulking, and deck problems before they escalate into costly repairs. Budget one to two hours to inspect every wall, window, door, and outdoor structure.
Quick Summary
Time Required
1–2 hours
Difficulty
Easy — DIY friendly
Cost
Free
Checking Siding for Damage, Cracks, and Loose Pieces
Your siding is the primary weather barrier between your home's framing and the elements. Any breach in this barrier allows water, insects, and air to reach the vulnerable wood structure underneath.
Walk each wall at arm's length
Stand close enough to see details and work your way along each wall from one end to the other. Look for cracks, holes, warped sections, and any pieces that have shifted out of alignment. On vinyl siding, check for pieces that have unhooked from the row above—these can be snapped back into place.
Pay attention to the bottom courses
The lowest rows of siding are most vulnerable to splash-back from rain, snow piling, and lawn equipment damage. Check for dents, cracks, and any areas where the siding sits too close to the soil. There should be at least 6 inches of clearance between the bottom edge of the siding and the ground.
Check behind downspouts and fixtures
Siding behind downspouts, light fixtures, and hose bibs is often hidden from view but prone to moisture damage. Gently pull downspouts away from the wall to inspect the siding behind them. Look for discoloration, mold, or soft spots that indicate trapped moisture.
Inspecting Wood Trim for Rot with the Screwdriver Test
Wood trim around windows, doors, and along the roofline is especially vulnerable to rot because it sits at transition points where water tends to collect. The screwdriver probe test is the most reliable way to find rot that may not be visible on the surface.
How to Perform the Screwdriver Probe Test
- Use a flat-blade screwdriver: Press the tip firmly into the wood surface at multiple points along each piece of trim. Sound wood resists the probe and feels solid. If the screwdriver sinks in with little pressure, the wood is soft and rotting internally even if the paint surface looks intact.
- Focus on horizontal surfaces: Window sills, the tops of door frames, and any horizontal trim pieces collect standing water and rot first. Check the bottom edges of vertical trim boards where they meet horizontal surfaces or sit close to the ground.
- Check joints and end grain: Where two trim pieces meet, water can wick into the end grain and cause rot from the inside out. Probe these joints carefully. Also check where trim meets siding, stucco, or brick—failed caulking at these joints is a common entry point for moisture.
- Inspect corner boards and fascia: Corner boards take weather from two directions and are prime rot candidates. Fascia boards along the roofline sit directly below the gutter line and are constantly exposed to moisture from gutter overflows and ice dam melt.
Checking Paint, Caulking, and Window Seals
Paint and caulking are not just cosmetic—they are critical moisture barriers. When they fail, water reaches the wood or masonry underneath and deterioration accelerates rapidly.
Identify peeling and bubbling paint
Peeling paint means the bond between the paint film and the surface has failed, usually because moisture got behind it. Bubbling indicates active moisture pushing the paint outward. Both require scraping, priming, and repainting before the exposed wood absorbs more water. South and west-facing walls deteriorate fastest due to sun exposure.
Inspect caulk around every opening
Check the caulking around each window frame, door frame, and any penetration through the siding (pipes, wires, vents). Press on the caulk with your finger—it should feel flexible and firmly bonded to both surfaces. Caulk that is cracked, hard, or pulling away from a surface is no longer sealing and needs replacement.
Check window glazing on older windows
On older single-pane windows, the glazing putty that holds the glass in the frame can crack and fall out over time. Missing glazing allows water into the sash and frame, causing rot. Press on the glazing around each pane—if it crumbles or is missing, it needs reapplication.
Inspecting Your Deck and Railings
Decks endure direct weather exposure year-round and are a common source of safety hazards. A deck that looked fine in fall may have developed problems over winter that need attention before you start using it in warmer weather.
- Walk every board: Step on each deck board and feel for any that flex excessively, feel soft, or bounce. Soft, spongy boards are rotting and may not support weight safely. Also look for cracks, splinters, and boards that have warped or cupped—these create trip hazards and trap water.
- Test every railing: Push firmly on each railing section and post from multiple directions. Railings should feel solid and immovable. Loose railings are a serious safety hazard, especially on elevated decks. Check the base of each post where it meets the deck surface—this is the most common failure point.
- Inspect the ledger board: The ledger board is where your deck attaches to the house. Look for gaps between the ledger and the house wall, rust on the lag bolts or connectors, and any signs of rot. A failing ledger board is the most common cause of deck collapses.
- Check the underside: If your deck is elevated, look underneath at the joists, beams, and posts. Check for rot, insect damage, and corroded hardware. Ensure posts sit squarely on their footings and have not shifted or tilted.
Pro Tips
- •Bring a checklist and camera: Photograph every problem area and record its location. When you are ready to repair or hire someone, you will have an exact inventory. This also prevents you from forgetting minor issues that seem small in the moment but compound over time.
- •Prioritize water entry points: Not every issue you find needs immediate repair, but anything that allows water penetration should be addressed first. A small caulk gap costs $5 to fix now but can cause hundreds in rot damage if left until next year.
- •Check where different materials meet: The joints between siding and trim, brick and wood, or concrete and framing are where most water problems originate. These transition points expand and contract at different rates and require flexible sealant that is maintained regularly.
- •Look for insect damage: While inspecting wood surfaces, watch for small round holes (carpenter bees), sawdust piles (carpenter ants), or mud tubes (termites). Spring is when many wood-boring insects become active, and early detection prevents serious structural damage.
Frequently Asked Questions
How do I test wood trim for rot?
The screwdriver probe test is the most reliable method. Press the tip of a flat-blade screwdriver firmly into the wood surface at multiple points, especially near joints, corners, and areas close to the ground. Sound wood will resist the probe and feel solid. Rotting wood will feel soft and spongy, and the screwdriver will sink in with little pressure. Check particularly around window sills, door frames, corner boards, and any trim that sits close to the ground or is exposed to splash-back from rain.
How often should exterior caulking be replaced?
Most exterior caulking lasts 5 to 10 years depending on the product quality and sun exposure. Silicone-based caulks tend to last longer than acrylic latex varieties. You should inspect all caulking annually during your spring walk-around and recaulk any areas where the caulk has cracked, shrunk, or pulled away from surfaces. South and west-facing walls get the most sun exposure and typically need recaulking more frequently.
What should I look for when inspecting my deck in spring?
Check for boards that are cracked, warped, splintered, or feel soft when you walk on them. Push firmly on every railing section and post to test for looseness. Inspect the ledger board where the deck attaches to the house for signs of rot, rust on connectors, or separation from the wall. Look underneath the deck for sagging joists, corroded hardware, and any posts that are not sitting squarely on their footings. A deck that moves or bounces excessively when you walk on it may have structural issues.
Related Guides
Spring Maintenance Checklist
Complete 18-step guide to preparing your home for spring
Inspect Your Roof for Winter Damage
Safely scan your roof from the ground for shingle and flashing damage
Inspect Your Foundation
Walk the perimeter to check for new cracks, water stains, and settling signs
Check Drainage and Grading
Verify proper grading and drainage to protect your foundation from water damage