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*The Angi rating for Driveway Sealcoating companies in Roundup, MT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Driveway Sealcoating needs.

*The HomeAdvisor rating for Driveway Sealcoating companies in Roundup, MT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Driveway Sealcoating needs.

Last update on May 31, 2026

Find Driveway sealcoating pros in Roundup

Avatar for Asphalt Paving & Professional Coatings
Asphalt Paving & Professional Coatings
4.2(
28
)
Asphalt SealingAsphalt Sealing- For Business

Serving Roundup, MT and surrounding areas

Approved

In business since 2006

Free estimates

Credit card accepted

"Fortunately, this company wasn't the normal seal of your driveway and run. This company removed any high spots, bumps, low spots, covered everything with a fresh surface of new asphalt and they ran roller machines over it for some hours. It looks great."
Before we graded it
Hot Mix
Grading
Response time3 days
26 neighbors recently requested a quote
Recommended by79%of homeowners
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CharmsDriveway, LLC
5.0(
1
)
Asphalt Sealing

Serving Roundup, MT and surrounding areas

In business since 2018

Free estimates

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers' needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Response time3 days
Recommended by100%of homeowners
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Ostermiller Construction LLC
New to Angi
Asphalt SealingAsphalt Sealing- For Business

Serving Roundup, MT and surrounding areas

In business since 2023

Free estimates

Credit card accepted

Ostermiller Construction LLC in Shepherd, MT specializes in concrete, asphalt, curb, driveway, walkway, sidewalk, parking lot construction, and dirt work. We offer free estimates.\n\nWe serve in Shepherd, MT, Broadview Town MT; Roundup MT; Camp Three MT; Klein MT; and the surrounding areas.\n\nAsphalt Repair, Asphalt Contractor, Asphalt Driveway Repair, Asphalt Crack Repair, Parking Lot Asphalt Repair\nConcrete Service\n\nFor more information visit our website: https://constructionshepherdmt.com/

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Driveway Sealcoating questions, answered by experts

If you notice minor cosmetic problems with your driveway, you should seal it. Look out for cracks and holes on the surface, faded asphalt or concrete, and stains from oil and other chemicals. Replacing your driveway may be necessary if you’re dealing with significant problems—¼-inch cracks, large potholes, and puddles from drainage issues. The cost to install an asphalt driveway typically ranges between $4,200 and $9,000, significantly more than resealing. Consider talking to a professional to discuss whether resurfacing your driveway—a midway project between resealing and replacing—is a better option for you.

The best time to seal a driveway is during periods of mild, dry weather, typically from late spring through early fall. For the sealant to bond and cure properly, it needs warm conditions. Avoid sealing in the winter when temperatures are too low.

For optimal results, follow these guidelines:

  • Temperature: Apply sealant when air and surface temperatures are consistently above a minimum of 50-55°F. The ideal range is often between 60°F and 80°F. Avoid applying sealer in extreme heat (above 90-95°F), as it can cause the sealant to dry too quickly and improperly.

  • Weather: Choose a time with no rain in the forecast for at least 24 to 48 hours after application. Rain can wash away the sealant before it has fully cured.

  • Timing and Cost: While spring and fall offer ideal temperatures, they are also the busiest seasons for driveway sealing companies, which may lead to higher costs due to increased demand. The best specific month will depend on your local climate.

Regular sealing, drainage management, and debris removal help prevent asphalt deterioration, protecting and extending surface life.

If your asphalt driveway shows cracks, potholes, or standing water, it’s likely time for a repair. Cracks, big or small, let water seep in, weakening the base and causing further damage. Potholes are a sign of this weakening process in action while standing water suggests your driveway has poor drainage, which can cause even more issues. You may also see warping or buckling—a sign of a compromised base layer—or sinking pavement. Spotting these signs early on can help you save yourself a bigger repair bill in the future.

Asphalt driveways last anywhere from 15 to 30 years, but if you don’t stay on top of repairs, you may find yourself spending extra to replace your driveway before its typical lifespan. Stay on top of repairing cracks and potholes by routinely inspecting your driveway once or twice a year. It’s a good idea to pressure wash your asphalt driveway at least once a year to keep it clean. Apply a sealer every one to five years, based on your climate.

The Roundup, MT homeowners’ guide to driveway sealcoating

From average costs to expert advice, get all the answers you need to get your job done.

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