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Seal the cracks

Asphalt crack filling and crack sealing in Lancaster, PA

Water gets into small cracks, freezes, and turns them into potholes. We heat rubberized sealant to about 400 degrees and fill cracks the right way, so they stay filled through a Pennsylvania winter.

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Hot pour crack sealer filling a long crack across a parking lot

Lancaster Lines & Asphalt

Crack Filling & Sealing: what it is, and when it matters

A crack in asphalt is not the problem. The water that gets in through the crack is. Once it is under the surface, it softens the base. When temperatures drop, it freezes and expands, pushing the pavement apart. When it thaws, it leaves a void. Repeat that a few dozen times in a Lancaster County winter and you have a pothole.

Hot pour crack sealing stops that cycle. We clean the crack, heat a rubberized sealant in a melter, and fill the crack from the bottom up. The rubber stays flexible, so it moves with the pavement as temperatures swing. That is what makes it different from the cold-pour bottle you buy at the hardware store.

Fall is the best season for crack filling in this area. Cracks are at their widest in cold weather, which means they take more material, and filling them before winter keeps water from doing damage. We also fill before sealcoating, because sealer by itself does not fill a crack.

What is included

Every crack filling & sealing job from Lancaster Lines & Asphalt covers this

  • 01

    Crack assessment

    We walk the pavement and decide which cracks need filling and which are structural and need other repair.

  • 02

    Cleaning

    Dirt, debris and vegetation blown or scraped out so the rubber can bond.

  • 03

    Hot rubber fill

    Rubberized sealant heated to about 400 degrees F and applied from the bottom up.

  • 04

    Strike-off

    Material squeegeed flush so it does not create a bump for cars or plows.

  • 05

    Cure and reopen

    A short cure time, then you can drive on it.

  • 06

    Pairing with sealcoat

    We schedule crack filling and sealcoating together when it makes sense.

Check your property

When to fill or seal cracks in your driveway or lot

  • Cracks wider than a credit card edge are open to the sky.
  • You can see weeds growing in the cracks.
  • Water pools along a crack after rain.
  • It is fall and you want to protect the pavement before winter.
  • You are planning to sealcoat.
  • Last year's cracks are wider this year.
Crack sealing equipment and freshly filled cracks across a parking lot
Crew member applying hot rubber crack sealant with a pour pot
Sealed cracks running along a commercial entrance drive
Angled yellow parking stripes laid out on a crack-filled asphalt lot

How it goes

How Lancaster Lines & Asphalt does it, start to finish

  1. Step 1

    Assess

    We map the cracks and decide what can be sealed.

  2. Step 2

    Clean

    Blow out debris and clear vegetation.

  3. Step 3

    Heat and fill

    Heat the rubber and fill the cracks from the bottom up.

  4. Step 4

    Finish

    Squeegee flush and let it cure before traffic returns.

Lancaster Lines & Asphalt work

On real customer properties

Full gallery
Crack sealing equipment and freshly filled cracks across a parking lot
Crew member applying hot rubber crack sealant with a pour pot
Sealed cracks running along a commercial entrance drive
Angled yellow parking stripes laid out on a crack-filled asphalt lot
Long driveway bordered by evergreens with sealed surface cracks

Questions for Lines & Asphalt

Crack Filling & Sealing FAQ

What is the difference between crack filling and crack sealing?
People use the words interchangeably. Strictly, crack sealing uses a flexible material placed into cracks that move with temperature, and crack filling is for cracks that move less. We use hot pour rubberized sealant for both on driveways and lots, because it stays flexible through Pennsylvania winters.
What is the difference between hot pour and cold pour crack filler?
Hot pour is a rubberized material heated to about 400 degrees. It bonds to the sides of the crack and stays flexible in the cold. Cold pour is easier to apply but typically doesn't last as long in our climate.
How is crack filling priced?
By the total length of cracks and how much cleaning they need. Commercial lots are measured on site. Quotes are free and in writing.
Can you fill cracks in winter?
Cracks must be clean and dry. Light work is possible on dry days, but the best window is fall, before winter sets in.
How long does it last?
With proper prep, several years. It eventually wears and can be redone.
Should I fill cracks before sealcoating?
Yes. Sealcoating by itself does not fill cracks. Fill first, then seal.

Keep going

More from Lancaster Lines & Asphalt

SealcoatingCommercial lot and residential sealcoating that protects asphalt from water, sun, salt and oil.Asphalt & Pothole RepairSquare-cut, base-checked, hot mix repairs that stay put, plus temporary patches in winter.Driveway Sealing & SealcoatingResidential driveway sealcoating with crack filling, hand-cut edges and two coats.Parking Lot MaintenanceA simple yearly plan: fill cracks, patch holes, sealcoat and re-stripe in the right order.

Crack Filling & Sealing projects we have written up

Blue ADA stall with the symbol of access and blue lines beside a brick buildingYellow Re-Striping and Blue ADA Stalls at a Brick Building LotAn older lot behind a brick building got its lines back: yellow stalls, a yellow hatched aisle, and an accessible stall painted in blue with the symbol of access. The asphalt shows its age, which is exactly why the markings mattered.View project
Hot pour crack sealer filling a long crack across a parking lotHot Pour Crack Sealing on a Commercial Parking LotLong, winding cracks across a commercial lot and its entrance drive, cleaned out and sealed with hot rubber. Done before winter so water stays out and the cracks do not become potholes by spring.View project
Long sealcoated driveway running toward a house past a tree lineSealing Long Country Driveways: What Changes When the Driveway Is Hundreds of Feet LongSeveral long country driveways, each running hundreds of feet across lawns, up hills and past tree lines. Sealing a long driveway is the same job as a short one, but the edges, the slope and the road apron decide how it turns out.View project

Read before you decide

Where we do this work

Free estimate from Lancaster Lines & Asphalt

Get a crack filling & sealing quote

Tell us what you see and where the property is. We call back within one business day, look at the job, and give you a written price.

  1. 1Send the form or call. Photos help but are not required.
  2. 2We visit or review your photos and measure the job.
  3. 3You get a clear written price. No obligation.
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