Asphalt Crack Repair

Why Asphalt Cracks and Why It Matters

Asphalt is flexible, but not endlessly. As it ages, sun oxidizes the binder and the surface becomes stiffer and more brittle, so instead of bending with daily temperature swings and ground movement, it splits. In the East Bay, the clay soils under many properties add to that movement as they dry and shrink through the summer, which is when many existing cracks widen.

On its own, a crack is a small problem. The real damage starts when water gets in. Rain runs down the opening into the base, softens it and washes out fine material. Traffic pressing on that weakened spot then pushes the crack wider and starts new ones beside it. What began as a single line turns into a network of cracks, then a pothole.

Not every crack is the same, and reading them tells you what is happening:

• Longitudinal and transverse cracks: Straight lines running along or across the pavement, usually from aging, temperature movement or a joint between paving passes. These are prime candidates for sealing.
• Edge cracks: Breaks along the outer edges of a driveway or road, often caused by weak shoulders, poor drainage or vehicles riding the edge.
• Block cracking: A pattern of large rectangles across the surface, a sign of an aged, oxidized surface that has lost its flexibility.
• Reflective cracks: Cracks that show through an overlay from the old pavement or concrete underneath.
• Alligator cracking: Tight, interconnected cracks that look like reptile skin. This is a structural failure in the base, and crack filler will not fix it.

Crack Repair Services We Provide

• Crack sealing: For working cracks that open and close with temperature changes. A flexible sealant is applied so it stretches and compresses with the pavement instead of pulling away.
• Crack filling: For wider, more stable cracks that move less. The opening is filled to keep water and debris out and to support the edges of the crack.
• Crack routing: Where needed, cracks are routed to create a clean, uniform channel that holds more sealant and gives it a better bond than an irregular opening.
• Crack maintenance programs: Scheduled crack sealing for commercial properties, HOAs and private roads, often paired with sealcoating so the whole surface is protected in one sequence. For larger commercial sites, this pairs well with our parking lot paving and maintenance work.

When the damage has moved beyond cracks into potholes, sinking or alligator cracking, the right fix is asphalt repair and patchwork rather than filler.

Our Crack Repair Process

1. Inspect and map: We walk the surface, identify the type and width of each crack and separate what can be sealed from what needs a structural repair.
2. Clean the cracks: Dirt, vegetation, loose stone and old failed filler are removed with wire brushes, blowers and, where needed, routing, because sealant will not hold on a dusty or damp crack.
3. Dry the surface: Cracks must be clean and completely dry before material goes in, so work is scheduled around weather and morning dew.
4. Apply the right material: Professional-grade crack sealant or filler is matched to the crack type and width, then applied so it fills the opening fully and bonds to both sides.
5. Finish flush: Material is leveled at or just over the surface so tires, plows and sweepers do not pull it out, and the work area is left clean.
6. Plan what comes next: We tell you whether the surface is ready for sealcoating and when the cracks should be checked again.

Signs Your Pavement Needs Crack Repair

• Cracks you can fit a coin into
• Weeds or grass growing out of cracks
• Cracks that have grown longer or wider since last year
• Old filler that has pulled away or cracked open
• Small chunks breaking off the edges of cracks
• Water seeping into cracks after rain instead of running off the surface

Catching these early keeps a low-cost maintenance job from becoming a patching or replacement project.

The Best Time for Crack Repair in the Bay Area

Crack sealing works best in dry weather, when the cracks are clean and free of moisture. Mild spring and fall days are a good fit, because cracks sit near the middle of their range of movement, so the sealant is not installed fully stretched or fully squeezed.

The most important deadline is the start of the rainy season. Sealing cracks in late summer or early fall closes the openings before winter rain has a chance to reach the base, which is when most crack damage turns into potholes. On parking lots and HOA roads, crack sealing is usually done just ahead of sealcoating so both protect the surface together.

Why Property Owners Trust Huff General Engineering With Their Cracks

• We know what is underneath: Our crews build and repair asphalt from the base up, so we can tell a crack that only needs sealing from one that signals a deeper failure.
• Preparation done properly: Cleaning, drying and routing come before any material is applied, which is what keeps the sealant in the crack.
• Honest recommendations: If filler will not fix the problem, we say so instead of selling a repair that will not hold.
• Experience behind the advice: Owner Michael Huffaker has worked asphalt on every scale, from production road crews to finished driveways, and that background shapes how we read pavement damage.

Where We Provide Crack Repair

Our crews seal and fill cracks on residential and commercial properties in San Ramon, Concord, Dublin, Walnut Creek, Martinez, Pleasant Hill, Danville, Lafayette, Moraga and Orinda, and throughout our wider service area.

Asphalt Crack Repair FAQ

What is the difference between crack sealing and crack filling?

Crack sealing uses a flexible material for cracks that move with temperature changes, so it stretches and compresses without breaking its bond. Crack filling is for wider, more stable cracks that move less and mainly need to be closed against water and debris. Many surfaces have both types, and we treat each one accordingly.

Can all asphalt cracks be repaired with filler?

No. Single cracks and moderate networks can be sealed, but alligator cracking, potholes and sunken areas mean the base has failed. Those need to be cut out and patched, and filler applied over them will break apart quickly.

How long does crack sealing last?

It depends on the material, how well the crack was prepared, traffic and weather. Proper cleaning and drying make the biggest difference, and checking the surface regularly lets new or reopened cracks be resealed before they let water in.

Should I seal cracks before sealcoating?

Yes. Sealcoat does not fill cracks, so they are sealed first and the sealcoat is applied over the whole surface afterward. Doing both in sequence gives the best protection.

What affects the cost of crack repair?

Crack repair pricing comes down to:

• The total length of cracking
• Crack width
• The amount of cleaning or routing required
• The material used
• Whether other repairs are needed at the same time

Every estimate is put in writing after an on-site look at the pavement.