Prepare Pavement for Lasting Protection and Adhesion

Sunrise Sealcoat performs asphalt cleaning in Idaho Falls and surrounding areas to remove contaminants and prepare surfaces for sealcoating or crack repair.

Sunrise Sealcoat provides asphalt cleaning services for property owners in Idaho Falls, Pocatello, Shelley and surrounding areas who need to remove dirt, debris, oil buildup, and loose aggregate before applying sealant or performing repairs. You'll see the buildup in the form of stains that won't rinse away, a layer of fine dust that dulls the surface, and patches of moss or weeds growing through cracks. This contamination prevents sealant from bonding properly, which leads to premature coating failure, uneven coverage, and repairs that don't hold up over time. Cleaning the pavement first ensures that whatever is applied afterward bonds to clean asphalt rather than a layer of grime.


The work involves using rotary brooms, power blowers, and pressure washers to remove surface material and flush out cracks. Oil stains are treated with degreasers that break down petroleum residue so it can be scrubbed away or rinsed off. Vegetation is pulled out by hand or cut back, and the edges of the pavement are trimmed to remove grass and soil that have crept onto the asphalt. The goal is to expose a clean, dry surface that allows sealant, crack filler, or paint to adhere without interference. Cleaning is ideal for driveways, parking lots, and private roads that are scheduled for maintenance but haven't been touched in several seasons.


Schedule asphalt cleaning prior to maintenance service to ensure the best possible finish and the longest-lasting results.

What Asphalt Cleaning Involves and Why It Matters

You'll notice the process begins with a visual inspection to identify areas with heavy oil staining, embedded dirt, or vegetation growth. The surface is swept with a rotary broom that loosens compacted debris, and then blown clean with high-powered air to remove dust and small stones. Oil stains are treated with a commercial degreaser, allowed to sit for a few minutes, and then scrubbed with a stiff brush or pressure washed. If the pavement is heavily soiled, a second pass may be needed to reach bare asphalt.


After cleaning, your pavement will look darker, and you'll be able to see the texture of the aggregate and the true condition of the surface. You'll also notice that cracks are free of dirt and plant matter, which allows filler to bond directly to the pavement edges. Sunrise Sealcoat uses pressure washers with adjustable nozzles to avoid damaging aged asphalt while still removing stubborn stains. The surface must dry completely before sealcoating or crack repair begins, which typically takes several hours in warm, dry conditions.


Cleaning is most effective when performed as part of a scheduled maintenance plan rather than as a standalone service. It does not repair cracks, fill potholes, or restore structural integrity, but it does improve the bonding and overall finish quality of any treatment applied afterward. If the pavement is too deteriorated, cleaning alone will not prevent further damage.

Property owners often want to know how cleaning fits into the maintenance process and what they should do to prepare.

What to Expect Before and After Cleaning

Why is professional cleaning necessary before sealcoating? Sealant needs to bond to asphalt, not to dirt or oil. Cleaning removes the layer of contamination that would otherwise cause the coating to peel or wear unevenly.

What tools are used during asphalt cleaning? Rotary brooms loosen debris, power blowers clear dust and loose stone, and pressure washers remove oil stains and embedded dirt without damaging the pavement.

How long does the pavement need to dry after cleaning? The surface should be completely dry before sealcoating or crack repair begins, which usually takes a few hours in Idaho Falls during warm weather with low humidity.

Can cleaning remove all oil stains from asphalt? Most surface stains can be removed or significantly lightened with degreaser and pressure washing, but deeply penetrated oil may leave a faint mark even after treatment.

What should I do to prepare for asphalt cleaning? Clear the pavement of vehicles, planters, and any objects that would block access. The crew will handle the rest, including sweeping and washing.

If your driveway or parking lot is scheduled for sealcoating or crack repair, contact Sunrise Sealcoat to arrange asphalt cleaning in advance so the surface is properly prepared and the maintenance work can begin on schedule.