The Annual Home Inspection Checklist Hudson Valley Homeowners Shouldn't Skip

The outside of the house tells you a lot before you ever step indoors. I always start with a slow lap around the property after a decent rain, because water leaves clues. Bring a notepad, your phone for photos, a 4-foot level, and a flathead screwdriver for probing suspect wood. You’re not trying to diagnose every possible issue on day one. You’re looking for changes from last year and anything that invites water, movement, or rot.

Foundation and drainage checks

1. Walk the foundation and note any crack wider than 1/8 inch, especially stair-step cracks in block or masonry. 2. Look for spalling brick, loose mortar joints, or parging that’s flaking off. 3. Check grading; you want the soil to drop about 6 inches over the first 10 feet away from the house. 4. Make sure downspouts discharge at least 6 to 10 feet from the foundation using solid extensions, not those short splash blocks that end right at the wall. 5. Look for standing water in low spots 24 hours after rain. 6. Test the sump pump by pouring in a 5-gallon bucket of water and making sure the float activates cleanly. 7. Inspect hose bibs for drips, loose mounting, and missing vacuum breakers.

Siding, trim, windows, and doors

8. Probe lower trim boards, window sills, and garage door jambs for soft wood. 9. Check siding for gaps, warped panels, missing fasteners, or cracks at butt joints. 10. Inspect caulk joints around windows and doors; any gap over 1/4 inch should be cleaned out and re-caulked with a quality exterior sealant like OSI Quad Max or Big Stretch. 11. Look for peeling paint, bubbling paint, or black staining that points to trapped moisture. 12. Check window glazing, failed insulated glass seals, and torn screens. 13. Open and close exterior doors; if they drag, don’t latch, or show daylight, check hinges, weatherstripping, and threshold adjustment.

Decks, walks, and site safety

14. Look under the deck for proper ledger flashing where the deck meets the house. 15. Grab the railings and shake them; movement more than about 1/8 inch at the post connection needs attention. 16. Check stair treads, risers, and any loose carriage bolts or lag screws. 17. Walk the driveway and walkways for trip hazards; a height difference of 1/2 inch or more is worth marking for repair. 18. Inspect retaining walls for leaning, missing drainage, or washed-out soil behind them. 19. Trim tree limbs so they stay at least 6 to 10 feet off the roof and away from siding. 20. Check exterior vent terminations, especially the dryer vent, for lint buildup, crushed flaps, or bird nests.

A lot of homeowners skip the simple measurements and go by feel. Don’t. Put the level on the walk, measure the crack, poke the trim, and take the photo. That record matters. A hairline crack that stays the same for five years is one thing. A crack that doubles from one spring to the next is another. The outside inspection is where you catch the money leaks early.

Roof problems usually show up indoors long after the damage starts. Around here, ice, wind, wet leaves, and summer heat all work on the roof year-round. You don’t need to walk a steep roof to inspect it. In fact, most homeowners shouldn’t. Use binoculars from the ground, check from a ladder at the eaves if it’s safe, and inspect the attic from below.

Roof surface and flashing checks

21. Look for missing, curled, cracked, or blistered shingles. 22. Check for exposed nail heads and popped nails near ridge caps and flashing. 23. Inspect plumbing vent boots; the rubber collar is a common failure point after 8 to 15 years. 24. Look at chimney counterflashing and step flashing for gaps or lifted edges. 25. Check valleys for excessive granule loss, debris buildup, or worn shingles. 26. Look for moss and algae, especially on shaded north-facing slopes. 27. Inspect soffits and fascia for soft spots, peeling paint, or animal entry points. 28. Make sure the ridge vent isn’t blocked by debris or old roofing cement.

Gutters, downspouts, and chimney checks

29. Run water through the gutters and make sure they pitch toward the downspouts instead of holding puddles. 30. Check gutter fasteners, spikes, or hidden hangers for looseness. 31. Inspect seams and end caps for leaks; a small drip can stain fascia and rot sheathing over time. 32. Confirm downspouts aren’t clogged at the elbows and lower bends. 33. Look at the chimney crown for cracks wider than hairline, because that’s where freeze-thaw damage starts. 34. Check the chimney cap or spark arrestor screen for rust, loose mounting, or missing sections.

Attic insulation and moisture checks

35. Measure insulation depth. In many homes, I still find 5 or 6 inches of old fiberglass where 12 to 16 inches would do a much better job. 36. Look for air leaks around recessed lights, attic hatches, bath fan housings, and top plates; sealing these with fire-rated foam or proper covers often helps more than just adding insulation. 37. Make sure bathroom fans vent outside, not into the attic. 38. Inspect the underside of the roof sheathing for dark stains, active drips, or daylight coming through. 39. Look for moldy sheathing, rusty nail tips, or winter frost marks that point to poor ventilation. 40. Check for nests, droppings, chewed wiring, or torn insulation from mice, squirrels, or bats.

When I’m in an attic, I also pay attention to smell and feel. A musty attic usually means moisture has been sitting there. A hot, stagnant attic in July may mean bad airflow. Little fixes matter here: resealing an attic hatch with foam tape, replacing a cracked pipe boot, or adding proper baffles at the eaves can prevent the kind of damage that shows up months later as a stained ceiling or moldy insulation.

Inside the house is where comfort, safety, and hidden leaks live. This part of the annual inspection checklist is less about curb appeal and more about preventing damage you won’t notice until you get a big utility bill or a section of drywall lets go. Keep a flashlight, a GFCI tester, a new HVAC filter, and a simple water pressure gauge that screws onto a hose bib.

Plumbing checks

41. Inspect the water heater for rust, seepage at the fittings, corrosion around the draft hood on gas units, and drips from the temperature and pressure relief valve discharge pipe. 42. Turn the shutoff valves under sinks and behind toilets; if they’re frozen, replace them before an emergency forces the issue. 43. Check under every sink, around toilet bases, and behind the washing machine for active leaks, staining, or swollen cabinet floors. 44. Test water pressure; ideal residential pressure is usually about 50 to 75 psi, and anything pushing near 80 psi should be addressed with a pressure reducing valve if needed.

Electrical and HVAC checks

45. Test every GFCI at kitchens, bathrooms, garage, basement, and exterior receptacles, and check AFCI protection where applicable. A plug-in tester like the Klein Tools RT250 makes this easy. 46. Open the panel door and look for rust, scorch marks, double-tapped breakers where they don’t belong, and missing circuit labels. Leave the dead front cover alone unless you know exactly what you’re doing. 47. Replace or inspect the HVAC filter, check the condensate drain for blockage, make sure supply and return grilles are clear, and listen for unusual blower or inducer noise at startup.

Interior condition and life-safety checks

48. Test smoke alarms and carbon monoxide alarms, and replace any unit older than 10 years. 49. Check the basement or crawlspace for efflorescence, wet insulation, musty odors, and humidity above 60 percent; a simple hygrometer tells the story fast. 50. Walk every room and look for new ceiling stains, widening drywall cracks, sticking doors, sloping floors, and windows that suddenly don’t operate smoothly, because those changes can point to moisture or movement.

This is also the time to write down model numbers, filter sizes, and installation dates. Homeowners save themselves a lot of aggravation when they know the furnace takes a 16x25x1 filter, the water heater is 11 years old, and the smoke alarms were replaced three summers ago. Good records turn maintenance from guesswork into a system.

The biggest mistake I see is treating a home inspection like a quick walk-around instead of a documented maintenance check. People glance at the roof from the driveway, kick the tires on the furnace, and call it done. Then six months later they’re surprised by a leak that had already left attic stains, or by deck framing that had been soft for years. Slow down and write things down.

Another common mistake is focusing only on what’s visible at eye level. The real trouble spots are usually where materials meet: chimney flashing, deck ledger connections, the bottom corners of trim boards, the backside of gutters, the sill plate in the basement, or the wax ring area under a toilet that rocks slightly. Moisture loves hidden edges. So do insects.

I also see homeowners use the wrong repair materials. Interior painter’s caulk outside, silicone smeared over dirty brick, roofing tar packed into flashing gaps, and bargain flexible duct tape on HVAC joints are all temporary at best. Use exterior-grade products that match the job. For example, polyurethane or hybrid sealants like Sikaflex or OSI Quad Max hold up far better outdoors than cheap latex caulk, and proper aluminum tape is what belongs on many HVAC seams, not cloth duct tape.

Last one: knowing when not to DIY. Testing detectors, clearing debris, swapping filters, resealing small trim joints, and checking slope with a level are reasonable homeowner tasks. Walking a wet roof, opening an electrical panel beyond the door, servicing a gas appliance, or jacking a settling deck post are not beginner jobs. Saving a few bucks isn’t worth a fall, a fire, or making the repair bigger.

A basic DIY annual inspection is affordable if you already own a few tools. Figure about 20 to 40 dollars for a GFCI tester, 15 to 25 dollars for a water pressure gauge, 15 to 30 dollars for a hygrometer, 30 to 60 dollars for a moisture meter, and 25 to 60 dollars for quality sealant, weatherstripping, and touch-up materials. Add in a solid ladder only if you need one, and that’s where costs jump. For many homeowners, the inspection itself is cheap; the value is in catching issues while they’re still small.

For professional help in Rockland and Orange County, handyman rates commonly run about 95 to 140 dollars per hour depending on access, scope, and whether materials are included. Licensed plumbers, electricians, and HVAC techs are usually higher, often 140 to 195 dollars per hour, with service call minimums. A thorough maintenance walk-through by a seasoned contractor might run 250 to 500 dollars, while a more formal inspection with detailed reporting can go higher.

Typical repair ranges after an annual inspection can vary a lot. Re-caulking exterior windows and doors may run 250 to 700 dollars depending on how many openings the house has. Gutter cleaning is often 150 to 350 dollars on a typical one- to two-story home, while minor gutter repairs can add 100 to 300 dollars. Replacing a couple of bad GFCIs might cost 175 to 350 dollars. Swapping shutoff valves under sinks can run 150 to 300 dollars each if they’re seized or corroded. Minor roof repairs such as replacing a boot flashing or a few shingles often land around 350 to 900 dollars, while attic air sealing and adding insulation can range from roughly 1,200 to 3,500 dollars depending on size and access.

Where homeowners really save money is early detection. A 20-dollar tube of exterior sealant and one hour of labor is a lot better than replacing rotten trim, wet insulation, and stained drywall later. The same goes for downspout extensions, filter changes, and catching a slow toilet leak before the subfloor softens. Maintenance feels optional right up until the repair bill shows up.