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We offer professional asphalt sealcoating in Saint Louis, MO to protect your driveway from weather, sun, and traffic damage. Our team cleans the surface, fills cracks, and applies a quality sealer that restores color and shields your asphalt. Regular maintenance slows aging, prevents water intrusion, and keeps your driveway looking freshly paved longer.
Precision Asphalt St. Louis provides professional asphalt sealcoating throughout Saint Louis, MO, Missouri and the surrounding area. Our licensed, insured crew delivers safe, clean, on-time work with a free estimate before anything begins. Call (314) 333-7779 or request your free quote.
Asphalt Sealcoating & Crack Filling for Saint Louis Properties
At Precision Asphalt St. Louis, we treat asphalt sealcoating and crack filling as preventive maintenance, not a cosmetic touchup. In our climate, with freeze-thaw cycles, summer heat, and road salt, unprotected asphalt in Saint Louis typically starts to oxidize and ravel within a few years. A proper sealcoat and crack repair schedule can double or even triple the service life of your driveway or parking lot.
We work across the metro area on everything from older city driveways in neighborhoods like Tower Grove and South City to large commercial parking lots in West County and industrial yards along the river. Each site has different traffic patterns, drainage issues, and sun exposure, so we do not use a one-size-fits-all approach. Before we quote anything, we inspect the surface, ask how it is used (cars only, light trucks, delivery traffic, dumpsters, snowplows), and build a plan around that.
Our goal is simple: slow down water penetration, block UV damage, and keep small cracks from turning into base failures and potholes. When we explain a proposal, we walk you through exactly what we will do, where the weak spots are in your pavement, and what you can expect over the next 3 to 5 years if you stay on a maintenance schedule.
Step-by-step: How Our Sealcoating Process Works
High quality asphalt sealcoating is 80 percent preparation and 20 percent sealer. At Precision Asphalt St. Louis, a typical residential or light commercial sealcoat follows a consistent sequence, adjusted for your property:
1. Inspection and planning: We examine the surface for structural failures, drainage problems, oil-saturated areas, and existing coatings. If we see alligator cracking or base movement, we will tell you that sealcoating alone will not fix it and recommend patching first.
2. Cleaning and edge work: We mechanically clean the asphalt using steel bristle brooms and power blowers. On commercial lots we often use a power sweeper. Grass along edges is trimmed back so the sealer can fully cover the asphalt and not sit on top of soil or vegetation.
3. Oil and stain treatment: Areas with oil spots from parked vehicles are scrubbed with a detergent or primed with an oil spot primer. If this step is skipped, the sealer will peel prematurely in those locations.
4. Crack filling before sealing: We clean and fill cracks (more detail below), then allow the filler to set. This prevents the sealer from just flowing into the crack and disappearing.
5. Sealer mixing and application: We use commercial-grade asphalt emulsion sealer, typically fortified with sand and latex additives for Saint Louis traffic conditions. The sand improves skid resistance and wear. We mix on site to the proper viscosity based on temperature and surface texture.
6. Application method: On driveways and smaller areas, we generally apply sealer with rubber squeegees and brushes near edges and around structures, and spray in the open areas when appropriate. On larger lots we use spray rigs with hand-wand cut in. We often recommend two thin coats instead of one thick coat for better curing and durability.
7. Curing and reopening: In typical Saint Louis summer weather, you can usually walk on a newly sealed surface after 4 to 6 hours and drive on it after 24 hours. On cooler or more humid days, we may recommend 36 hours. We set up barricades or tape and provide clear opening instructions so you avoid tracking sealer onto sidewalks or garage floors.
Crack Filling: Materials, Techniques, and Local Conditions
Crack filling is what actually keeps water out of your base, which is critical in Missouri’s freeze-thaw winters. Water that seeps through cracks, then freezes, expands and breaks apart the stone base. Precision Asphalt St. Louis treats crack repair as a separate, focused step, not a quick add-on to sell a coating.
For active working cracks, we typically use hot-pour rubberized crack sealant. It is heated in a kettle to the manufacturer’s specified temperature, then applied into cleaned cracks using a wand. As it cools, it bonds to the asphalt and remains flexible, so it can move with seasonal expansion and contraction. For smaller residential jobs or hairline cracks, we may use a high-quality cold-pour material, but we will explain the tradeoffs in lifespan and cost.
Preparation is critical. We open up and clean cracks with compressed air, wire wheels, or routing, depending on width and contamination. In parking lots that have seen deicing salts and heavy traffic, there is often fine debris wedged into cracks. If that is not removed, even the best sealant will not bond. On older Saint Louis streets and alleys, we often run into edge cracks near gutters, which are more complex. In those cases we may combine crack sealant with patching or asphalt skin repairs to restore support.
We also distinguish between structural failures and simple thermal cracks. Block and alligator cracking usually mean the base is failing. Filling those areas will clean up the look for a season, but it will not stop continued breakup, so we are straightforward about whether you should invest in full-depth repairs instead of just sealcoating and crack filling.
What Drives the Cost of Asphalt Sealcoating in Saint Louis
Homeowners and property managers often ask why two sealcoating quotes can be so different. At Precision Asphalt St. Louis, our pricing is driven by measurable factors, and we are transparent about each one during the estimate.
Key cost drivers include:
• Square footage and layout: Straightforward rectangular lots are more efficient than driveways with tight curves, islands, or multiple small parking bays. More cutting in by hand means more labor time.
• Condition of existing asphalt: Surfaces with heavy crack networks, raveling, or prior failed coatings require extra cleaning, more crack filler, and sometimes primers or patching before sealcoating. In older Saint Louis neighborhoods, it is common to see overlays on top of original 1950s or 1960s driveways that need added prep.
• Number and size of cracks: Crack filling is usually priced by linear foot, adjusted for crack width. A light pattern of hairline cracks is much quicker to address than wide, open joints or edge cracks that need routing and multiple passes.
• Material selection and coat count: A two-coat system with sand and latex additives costs more up front than a single thin spray coat, but it typically lasts longer and looks better over time. For commercial properties with frequent traffic, dumpsters, and snowplows, we rarely recommend a single-coat budget application.
• Traffic control and timing: Working at active businesses, apartment complexes, or schools often requires staging the work in phases, setting up cones and barricades, and returning multiple times. This protects your tenants and customers, but it does add to labor.
We provide written proposals that spell out the material type, number of coats, crack repair scope, and any patching. That way you can compare our quote to others on an apples-to-apples basis instead of just looking at a low lump sum number.
Common Asphalt Problems We Solve in the St. Louis Area
Local conditions create recurring asphalt issues that good sealcoating and crack filling can manage or prevent. Precision Asphalt St. Louis has seen patterns across the region, and we design our work around those realities.
Sun and oxidation: On open lots and south-facing driveways, the binder in asphalt dries out, turning gray and brittle. Sealcoating restores a protective film that slows this oxidation. We see this especially in newer subdivisions with limited tree cover.
Salt and chemical exposure: Parking lots that see winter salting or chemical spills near loading docks are prone to accelerated surface wear. Before sealcoating, we neutralize or remove as much contamination as possible, then may recommend a more frequent maintenance cycle for those high-stress areas.
Tree roots and edge damage: In many established Saint Louis neighborhoods, mature trees line driveways and streets. Roots can lift the asphalt and create cracks at the edges. For those properties, we often pair crack sealing with cutting and patching to eliminate the lifted sections, then apply sealer to tie everything together.
Drainage-related cracking: Standing water near low spots or at the bottom of sloped driveways often leads to cracking and potholes. We look for these drainage patterns during our inspection. Sometimes a minor regrade or localized patching is necessary before sealcoating, otherwise the same failure will return.
We make a point of explaining which problems sealcoating and crack filling can realistically fix, and which ones require more extensive repair. That clarity helps you budget and prioritize work instead of chasing short-lived surface fixes.
What to Expect Before, During, and After Your Project
A smooth project starts with clear communication. When you choose Precision Asphalt St. Louis for asphalt sealcoating and crack filling, we walk you through the timeline so you know what to expect and how to prepare your property.
Before the work begins, we will confirm dates based on weather, since temperature and rain forecasts are critical. We ask you to move vehicles, trailers, and portable basketball hoops, and to turn off sprinklers 24 hours before service. For commercial sites, we help you plan phases so sections of the lot remain open when needed, and we can schedule work during off-hours or weekends when practical.
During the job, our crew sets up cones, caution tape, and signs so nobody accidentally drives through fresh sealer. We keep noise and disruption as low as we reasonably can. If we uncover a hidden problem, such as soft base under a crack or an unmarked drain, we stop and show you the issue before changing the scope.
After application, we provide simple written care instructions. These include recommended cure times before foot and vehicle traffic, tips for avoiding scuffing (such as not turning steering wheels while parked in hot weather), and guidance on snow removal equipment that is less likely to damage the new surface. We also discuss your next maintenance interval, which for most Saint Louis properties is every 3 to 4 years, depending on use.
If you ever see something after the project that concerns you, like a tacky spot that is slow to cure or a crack you think we may have missed, we encourage you to call. We stand behind our work and would rather look at a concern early than after another season of weathering.
Choosing Precision Asphalt St. Louis for Long-Term Pavement Care
Sealcoating and crack filling are most effective when they are part of a long-term plan, not a one-time event. Precision Asphalt St. Louis focuses on building that plan with you so you get the maximum value out of your pavement investment.
We maintain detailed records of each project, including the type of sealer and crack filler used, number of coats, and the specific problem spots we addressed. For multi-building complexes, churches, and commercial centers, this history lets us phase future work intelligently, instead of sealing everything on a fixed calendar whether it needs it or not.
Our team is local, so we track how recent winters, summer heat waves, and municipal plowing practices are affecting lots across the area. That experience guides our recommendations on when it truly makes sense to reseal and when you are better off saving toward a structural repair.
When you contact us for an estimate, expect a straightforward assessment, clear pricing, and options that match how you actually use your property. Whether you are stewarding an older city driveway or managing a busy shopping center, we can tailor an asphalt sealcoating and crack filling program that fits your budget and protects your pavement for years to come.
