
Open cracks let San Francisco rain reach your driveway base. We clean and seal them properly so small problems stay small.

Asphalt crack sealing in San Francisco fills and bonds open cracks with a flexible rubberized sealant, stopping water and debris from reaching the base layer beneath your pavement - most driveways and small parking areas are completed in a few hours. It is a protective repair, not a cosmetic one. The goal is to extend the life of the surface you already have by closing the entry points that let water in.
Many San Francisco driveways develop cracks not from heavy use but from the subtle ground movement common in neighborhoods built on fill soils - the Mission, SoMa, and the western neighborhoods are all affected. Once those cracks open, the city's wet season does the rest. Water gets in, weakens the base, and a simple maintenance job becomes a full repair. Catching cracks early and sealing them is almost always less expensive than letting the damage progress. If your surface has also lost its protective coating, pairing crack sealing with asphalt sealcoating gives you a complete maintenance cycle that protects your pavement from the inside out.
Distinct lines - straight, diagonal, or branching - running across your asphalt are exactly what crack sealing is designed to close. The earlier you catch them, the simpler and less expensive the repair. Narrow cracks are the best candidates; waiting until they widen makes the job harder and the result less durable.
San Francisco's rainy season sends water directly into every open crack. If you see water sitting in or alongside cracks after a storm, it is working its way into the base layer beneath the asphalt. Over time this weakens the foundation and turns a simple sealing job into a much larger repair.
If you have watched a crack grow longer or wider over the past season, the damage is progressing. Actively spreading cracks need attention now. Sealing at this stage can stop the spread; ignoring it often leads to widespread surface failure that requires patching or full repaving.
Edge cracking - where the sides of the driveway break away - is common on San Francisco properties where driveways sit alongside retaining walls, planters, or sloped landscaping. Sealing the edges early keeps water from undermining the sides of the slab before the damage becomes structural.
Our crack sealing work covers residential driveways, small commercial parking areas, and the hillside lots that make San Francisco properties unique. Every job starts with thorough crack cleaning - we blow out loose debris and vegetation before any sealant touches the surface. Skipping that step is the most common shortcut that causes early failure, and we do not take it. For properties where cracking has spread into a web pattern across large areas, we will tell you honestly if commercial asphalt paving is a better fit than sealing alone.
The type of sealant used matters for longevity - hot-pour products generally outlast cold-pour options and are a better choice for driveways that see regular vehicle traffic. We select the product and technique based on the grade of your surface, the width and pattern of the cracks, and the time of year we are working. San Francisco's famously foggy summers affect curing, so we adjust our approach accordingly. If your surface would also benefit from a full protective coating after sealing, we can pair this service with asphalt sealcoating for comprehensive protection.
Ideal for homeowners with cracked asphalt driveways who want to stop damage from the next rainy season.
Suited for small commercial properties or multi-unit buildings with cracked asphalt surfaces that are still structurally sound.
Designed for steep San Francisco driveways where grade-appropriate technique and product selection matter for a lasting result.
For property owners who want to inspect and reseal cracks on a regular schedule, keeping ahead of Bay Area soil movement and rain.
In most parts of the country, freeze-thaw cycles are what crack pavement. San Francisco does not have that problem - winters here are mild. What the city does have is ground movement. Much of San Francisco is built on fill soils and bay mud, and that ground shifts over time. Neighborhoods like the Mission and the western avenues sit on ground that stresses asphalt from below, causing cracks to open and reopen regardless of how well the surface was installed. Sealing those cracks before the rainy season arrives keeps water out of the base layer and gives your pavement a realistic chance of lasting several more years before bigger work is needed. Property owners in Richmond, CA and Oakland, CA face similar ground conditions and benefit from the same early-intervention approach.
San Francisco's famous summer fog adds another wrinkle. Even on days without rain, pavement in the Sunset, the Richmond, and other western neighborhoods can be damp from overnight marine moisture. A contractor who knows Bay Area conditions checks that the surface is genuinely dry before applying sealant - not just that it has not rained recently. This detail is what separates a repair that holds through the next several wet seasons from one that pulls away from the crack edges before winter is out. The dry window here is roughly May through September, and that is when we schedule this work.
Describe your surface and the cracking you have noticed. We will schedule a site visit to see the pavement in person before quoting - the type and extent of cracking determines the right approach. We reply within one business day.
We visit your property, assess the cracks, and give you a written estimate that spells out what work will be done. We tell you honestly if crack sealing is the right fix or if your surface needs something else.
Crack sealing requires dry pavement. We schedule the job during a dry stretch - typically late spring through early fall in San Francisco. If rain arrives unexpectedly before the appointment, we reschedule rather than work on wet pavement.
The crew thoroughly cleans each crack before applying sealant - no shortcuts. We smooth the material level with the surface and give you a clear return-to-use window. On foggy San Francisco days, we may ask you to wait a bit longer before driving on the surface.
Free written estimate, no pressure, and we tell you honestly if your surface needs something other than crack sealing.
(628) 895-9188We hold a current California contractor license, verifiable through the CSLB online system. This matters because unlicensed work leaves you with no consumer protection if something goes wrong - and in San Francisco, something always has a chance to go wrong.
Steep driveways require a different technique - sealant applied without accounting for grade will run before it sets. We have worked on hillside properties across the city and adjust product choice and application method for sloped surfaces.
San Francisco's foggy summers mean pavement can be damp even when it has not rained. We check that your surface is genuinely dry before applying sealant - not just that the forecast is clear. This is the detail that separates lasting work from a premature failure.
We tell you upfront whether crack sealing is the right fix for your surface. If your pavement needs patching or resurfacing instead, we say so. You will not get a sales pitch for unnecessary work from this crew.
You can verify any California contractor license at cslb.ca.gov before hiring anyone for this work. Every job we do starts with a written estimate and a straight answer about what your pavement actually needs.
Full-depth asphalt installation for parking lots and private roads where cracking has progressed beyond what sealing can address.
Learn MoreA protective surface coating that guards sealed pavement against UV exposure, vehicle fluids, and marine moisture between maintenance cycles.
Learn MoreCall today for a free estimate - every month you wait gives San Francisco rain another chance to get into your pavement base.