Driveway & Walkway Inspection: What Every Inspector Should Check & Document

A thorough driveway inspection checklist is one of those things that separates a complete inspection from a lazy one. Too many inspectors walk past the driveway, glance at it, and write "driveway appeared serviceable" in their report. That's a missed opportunity — and a potential liability. Driveways and walkways tell stories about drainage, settlement, soil conditions, and maintenance history that directly impact the property's value and safety.

I've seen inspectors miss a driveway that was actively heaving toward the foundation, channeling water straight into the basement. I've seen trip hazards on walkways that were obvious lawsuit magnets. And I've seen brand-new sealcoat jobs hiding alligator cracking that meant the driveway needed full replacement within a year.

This guide covers every surface type you'll encounter — concrete, asphalt, pavers, and gravel — plus walkway safety, drainage assessment, winter damage, and how to document it all clearly enough to protect both your client and yourself.

Concrete Driveways

Concrete is the most common driveway material in most markets, and it gives you the most to inspect. Every crack tells a story — your job is reading it.

Cracking Patterns: Hairline vs. Structural

Not all cracks are equal. Here's how to classify what you see:

Hairline cracks (< 1/8")

• Normal shrinkage cracking — concrete shrinks as it cures
• Typically cosmetic unless they're growing
• Document but don't alarm — "Hairline shrinkage cracks observed, typical of age and exposure"

Medium cracks (1/8" to 1/2")

• May indicate minor settlement or frost heave
• Check if one side is higher than the other (differential settlement)
• Measure and photograph with a reference (coin, ruler, or crack gauge)

Structural cracks (> 1/2")

• Often indicate significant settlement, soil movement, or tree root intrusion
• Horizontal displacement (one slab section shifted laterally) suggests soil failure
• Cracks radiating from corners of the garage or house connection point may indicate foundation-related movement
• Always flag these clearly in your report

Heaving and Settling

• Heaving: Slab sections pushed upward, typically by frost heave or tree roots. Measure the displacement between sections. Anything over 1/2" creates a trip hazard; anything over 1" suggests significant subsurface movement.
• Settling: Slab sections dropped below adjacent sections. Often seen near the garage apron where backfill wasn't properly compacted. Check whether settled sections are directing water toward the structure.

Spalling

Surface deterioration where the top layer of concrete flakes or peels away:

• Cause: Usually freeze-thaw cycles, de-icing salt damage, or poor finishing during original pour
• Severity: Cosmetic when shallow (< 1/4" depth), structural concern when exposing aggregate or rebar
• Documentation: Note extent (percentage of surface affected) and depth

Control Joints

Control joints are the intentional grooves cut into concrete to direct cracking:

• Proper spacing: Every 8–12 feet in both directions for residential driveways
• What to check: Are cracks following the control joints (good) or running randomly (poor joint placement or unusual stress)?
• Missing joints: If a large concrete slab has no control joints, random cracking is inevitable

Asphalt Driveways

Asphalt is forgiving, flexible, and tells a different story than concrete. Here's your checklist:

Alligator Cracking

The most telling asphalt deficiency — a pattern of interconnected cracks resembling alligator skin:

• Cause: Structural failure of the base layer, not just surface wear. Water penetrating through the surface destabilizes the aggregate base.
• Severity: This is not a "seal it and forget it" problem. Alligator cracking means the driveway needs base repair or full replacement. Sealcoat won't fix it — and freshly sealcoated driveways sometimes hide existing alligator cracking.
• Documentation: Note the extent (localized to wheel paths vs. widespread) and whether the surface is pumping (soft, spongy feel when walked on).

Potholes

• Document size and depth
• Check whether potholes are collecting water (accelerating deterioration)
• Note any that are in the wheel path or near the street connection (safety hazard)

Edge Deterioration

Asphalt edges crumble when they lack support:

• Cause: No edge restraint, vehicle tires running off the edge, water undermining from adjacent soil
• Impact: Progressive — edge damage works inward if not addressed
• Documentation: Note linear extent and whether edge is actively undermining

Sealcoat Condition

• Fresh sealcoat: Note it — it can hide underlying problems. If the driveway was recently sealcoated before a sale, be extra cautious. Walk the surface and feel for soft spots.
• Oxidized surface: Gray, faded asphalt indicates the surface is losing its binding oils. Maintenance issue, not structural — but recommend sealcoating to extend life.
• Peeling sealcoat: Previous sealcoat application is delaminating. Usually means it was applied over dirty or wet surface.

Paver Driveways and Walkways

Pavers require different inspection eyes. The individual units are usually fine — it's the system that fails.

Settling and Shifting

• Settling: Low spots where pavers have sunk, typically from inadequate base compaction or erosion of the sand bed beneath
• Shifting: Lateral movement of pavers, often visible as widening joints or pavers touching/overlapping
• Cause: Both usually indicate base failure or insufficient edge restraint

Weed Growth

• Weeds between pavers indicate the polymeric sand has deteriorated
• Significant weed growth suggests water is moving freely through the joints, which will accelerate further deterioration
• Note as maintenance item, not structural defect

Polymeric Sand Condition

• Present and intact: Joints are filled, surface water sheds off — good condition
• Deteriorated: Sand washed out, joints are empty or partially filled. Pavers will shift without joint stabilization.
• Never installed: Some installations use regular sand, which washes out and allows weed growth and insect infiltration

Edge Restraint

• Check that pavers are contained by a soldier course, concrete edge, or metal/plastic edge restraint
• Missing edge restraint allows the entire paver field to creep outward over time
• Common failure point at driveway-to-garage transitions

Gravel Driveways

Common in rural properties. Quick inspection, but don't skip it:

Rutting

• Wheel ruts indicate the gravel layer is too thin or the base is soft
• Measure rut depth — anything over 2" affects drainage and vehicle clearance
• Deep ruts in the center of the drive often mean poor crown (the driveway should be slightly crowned to shed water to the sides)

Washout

• Look for areas where gravel has been carried away by water flow
• Check the low end of the driveway — is gravel accumulating at the street/road?
• Washout indicates the driveway grade is too steep for loose gravel or cross-drainage is inadequate

Edging

• Is the gravel contained or spreading into the yard/garden beds?
• Missing edging is a maintenance issue, not a defect, but worth noting

Walkway Inspection

Walkways are where safety becomes the primary concern. These are pedestrian surfaces — trip hazards and slip risks matter.

Trip Hazards

The critical measurement: any vertical displacement exceeding 3/8" between adjacent surfaces is a trip hazard.

• Use a straightedge or level to measure displacement at joints, cracks, and transitions
• Common locations: where walkways meet stoops, patios, or the driveway; where tree roots have lifted sections; at expansion joints
• Document the exact displacement measurement and location
• Flag as a safety concern in your report, not just a maintenance item

ADA Slope Considerations

While residential inspections don't require ADA compliance, noting walkway slope is good practice:

• Cross slope: Should not exceed 2% (1/4" per foot) to prevent water pooling and reduce slip risk
• Running slope: Walkways steeper than 1:20 (5%) function as ramps and ideally need handrails
• Note excessively steep walkways, especially those serving elderly occupants or that become icy in winter

Handrails

Required where walkways include steps or significant grade changes:

• Steps: Any walkway with more than one riser (and in many jurisdictions, even one riser) should have a handrail
• Graspability: Handrails should be graspable — 1.25" to 2" diameter, with returns at top and bottom
• Stability: Grab the handrail and push. It should be rigid and securely mounted.
• Height: 34" to 38" above the stair nosing

Surface Condition

• Concrete walkways: Same crack/heave/spall assessment as driveways, but with heightened safety concern due to pedestrian use
• Flagstone/natural stone: Check for loose, rocking, or missing stones. Mortar joints deteriorating.
• Brick walkways: Similar to pavers — settling, shifting, trip hazards at joints

Drainage and Grading Assessment

This is where the driveway inspection connects to the bigger picture of the property. How the driveway handles water affects the house.

Puddling

• After rain (or during your inspection if it's wet), note any standing water on the driveway or walkway surfaces
• Persistent puddles indicate low spots, inadequate slope, or failed drainage systems
• Puddles near the garage door or house entry are higher concern — they can introduce water into the structure

Slope Toward Structure

This is the most important drainage observation you'll make at the driveway:

• The driveway should slope AWAY from the structure, or at minimum not direct water toward it
• Common problem: driveways that settle over time, creating a reverse slope that channels water toward the garage or foundation
• Measure using a level: the driveway should have at least 1/8" per foot slope away from the structure within the first 10 feet
• If the driveway slopes toward the house, document it clearly and note any evidence of water intrusion in the garage or basement

Drainage Features

• Channel drains: Check that drain grates are clear and the channel slopes to discharge
• Swales: Grass or hardscape swales alongside the driveway should be maintained and draining properly
• Catch basins: Verify they're not clogged and are actually connected to a discharge point

Winter Damage Assessment

In cold climates, winter creates an annual cycle of damage that's easy to spot if you know what to look for.

Salt Damage

• Concrete: Look for surface scaling and spalling, especially in the first 2–3 years after pour. New concrete is most vulnerable to de-icing salt damage.
• Asphalt: Salt itself doesn't damage asphalt much, but the freeze-thaw cycle of meltwater penetrating through salt-opened cracks accelerates deterioration.
• Pavers: Salt can cause efflorescence (white mineral deposits on the surface). Cosmetic, but indicates salt use.

Frost Heave

• Concrete and paver sections lifted by ice formation beneath the surface
• Most visible in spring as the ground thaws unevenly
• Check transitions between the driveway and garage floor — frost heave often creates a lip at this joint
• May be seasonal (sections settle back in summer) or progressive (each cycle lifts slightly more)

Snowplow Damage

• Scraped or gouged surface edges
• Displaced edge restraints on paver driveways
• Cracked or chipped concrete at driveway aprons
• Damage to curbing at the street connection

Documentation Tips: Making Your Report Defensible

Your driveway and walkway findings need the same documentation rigor as any other system. Here's how to make them clear and defensible:

Measurements Matter

• Crack widths: Use a crack gauge or feeler gauge. "3/8-inch crack" beats "large crack" every time.
• Displacement: Measure height differences at joints and trip hazards. "1/2-inch vertical displacement" is precise and defensible.
• Extent: Quantify area affected. "Alligator cracking affecting approximately 30% of the driveway surface area" gives your client actionable information.

Photography Best Practices

• Wide shot: Show the entire driveway/walkway for context
• Close-up with reference: Place a coin, ruler, or crack gauge next to deficiencies for scale
• Drainage shots: If water is pooling, photograph it. These photos are worth more than words.
• Transition points: Always photograph where the driveway meets the garage, the walkway meets the stoop, and any other surface transitions

Report Language

Be specific and avoid ambiguity:

• ❌ "Driveway has some cracks"

• ✅ "Concrete driveway exhibits multiple cracks ranging from hairline to approximately 1/2-inch wide, with 3/8-inch vertical displacement observed at the center expansion joint. Cracking pattern and displacement suggest soil settlement beneath the center section."

• ❌ "Walkway is uneven"

• ✅ "Front walkway has a 5/8-inch vertical displacement between the second and third concrete sections, creating a trip hazard. Recommend repair by a qualified concrete contractor."

Speed Up Your Exterior Documentation with ReportWalk

Driveway and walkway inspections generate a lot of findings — crack measurements, displacement readings, drainage observations, and safety calls spread across multiple surface types and locations. Typing all of that into your report software while standing in a client's driveway is slow and error-prone.

ReportWalk lets you dictate findings as you walk the property. Describe the 3/8-inch trip hazard while you're standing next to it. Call out the alligator cracking while you're looking at it. Your voice notes become a structured report — no typing required. Available on iOS for inspectors who'd rather inspect than tap on a screen.

For related inspection guidance, see our checklists for grading and drainage, exterior inspection, and foundation inspection. For winter-specific concerns, check out our roof inspection checklist which covers ice dam assessment from above.