Your Sealcoating Specialists in Waterloo, IA

At D & M Asphalt Services, Inc., we offer professional sealcoating services designed to protect and extend the life of your asphalt surfaces. Based in Waterloo, Iowa, we proudly serve residential and commercial customers in the area, helping them maintain durable and attractive driveways, parking lots, and walkways through expert sealcoating.

What Is Sealcoating?

Sealcoating is the application of a protective liquid layer over asphalt pavement. This layer acts as a barrier against water, oil, UV rays, and other environmental elements that can cause damage and deterioration over time. Sealcoating fills small cracks and surface voids, restoring the black, fresh appearance of your asphalt and making it more resistant to wear and weathering.

Why You Should Sealcoat Your Asphalt?

Regular sealcoating is an essential maintenance step that helps preserve your asphalt and avoid costly repairs or premature replacement. Key benefits of sealcoating include

Protection from Water Damage: Sealcoating prevents water from penetrating the asphalt surface and damaging the underlying base.

UV Ray Resistance: It shields asphalt from oxidation caused by sunlight, which can make it brittle and prone to cracking.

Enhanced Appearance: Sealcoating restores the rich black color of your pavement, improving curb appeal and property value.

Increased Durability: It hardens the surface, reducing the effects of wear and tear from traffic and weather.

Cost Savings: By maintaining your asphalt through sealcoating, you extend its life and delay expensive repairs or replacement.

Our Sealcoating Process

At D & M Asphalt Services, Inc., we follow a thorough and professional sealcoating process that ensures optimal results and long-lasting protection:

  1. Surface Preparation: We begin by cleaning the asphalt thoroughly, removing dirt, debris, weeds, and loose material to ensure proper adhesion.
  2. Crack Filling & Repairs: Any visible cracks or minor damage are filled and repaired so the sealcoat can create a seamless protective layer.
  3. Application: Using high-quality sealcoating materials and equipment, we evenly apply the sealcoat over the entire surface, paying close attention to edges and corners.
  4. Drying & Curing: After application, the pavement is allowed to dry completely before being opened for use. We provide guidance on drying times based on weather conditions to ensure the best finish.
  5. Final Inspection: We perform a careful check of the finished surface to make sure the sealcoat has been applied uniformly and meets our quality standards.

Protect & Beautify Your Asphalt Today

Sealcoating is one of the most effective and affordable ways to maintain your asphalt surfaces and safeguard your investment. Trust D & M Asphalt Services, Inc. to deliver expert sealcoating services tailored to your residential or commercial property’s needs in the Waterloo, IA area. Contact us today at 563-379-1212 for your quote. Let us help you keep your asphalt looking great and performing its best for years to come.

Frequently Asked Questions About Driveway Sealcoating

  • How often should you sealcoat your driveway?

    Most asphalt driveways should be sealcoated every 2–3 years. However, frequency depends on weather conditions, traffic, and exposure to sunlight. Driveways in harsh climates with freeze-thaw cycles may require more frequent sealcoating.

  • When should you sealcoat a new asphalt driveway?

    A new asphalt driveway should typically be sealcoated 6–12 months after installation. This allows the asphalt to properly cure before applying the protective coating.

  • What happens if you don’t sealcoat your driveway?

    Without sealcoating, asphalt becomes vulnerable to:


    Cracking and potholes

    Water penetration

    UV damage and fading

    Chemical and oil deterioration

    Shortened driveway lifespan

    Neglecting maintenance often leads to costly repairs or premature replacement

  • How long does driveway sealcoating last?

    Professional sealcoating usually lasts 2–3 years, depending on traffic, climate, and maintenance. Regular upkeep helps extend the life of your asphalt surface.

  • How long does sealcoating take to dry?

    Sealcoating typically dries within 24–48 hours. Drying time may vary depending on temperature, humidity, and weather conditions. It’s best to avoid driving or parking on the surface until fully cured.



  • Does sealcoating fill cracks in asphalt?

    Sealcoating protects the surface but does not fully repair large cracks or structural damage. Cracks should be professionally repaired before sealcoating to ensure proper protection and long-term results.

  • What time of year is best for sealcoating a driveway?

    The best time to sealcoat is during warm, dry weather, typically late spring through early fall. Temperatures should generally be above 50°F for proper curing.

  • Is sealcoating worth the cost?

    Yes. Sealcoating is one of the most cost-effective ways to extend driveway life, prevent major damage, improve appearance, and reduce long-term repair expenses.

  • Can I sealcoat my driveway myself?

    While DIY products exist, professional sealcoating provides better durability, proper surface preparation, and longer-lasting results. Professional application ensures even coverage and maximum protection.

  • Who should I contact for professional driveway sealcoating?

    For expert asphalt maintenance and driveway protection, homeowners can contact D and M Asphalt for professional sealcoating services, inspections, and maintenance guidance.