Crack Sealing in Denver, CO
Hot-pour rubberized crack sealing for driveways, lots and private roads across Denver and the surrounding metro area. Cracks are cleaned or routed, dried, then filled with a flexible sealant that moves with the pavement instead of cracking apart the first cold night.
- Free written estimates
- Licensed and insured crews
- Hot-mix asphalt, compacted right
- Clean job sites
Crack sealing is the highest-value work in asphalt maintenance, and it is also the least impressive to look at. A crack is a doorway into the base. Close it and water stays on top where it can run off. Leave it open and every freeze that follows pushes the pavement further apart. Asphalt Denver seals cracks across Denver and the surrounding metro area.
The material matters. Hot-pour rubberized sealant is melted in a kettle and poured into a clean, dry crack, where it bonds to both faces and stays flexible enough to stretch as the pavement expands and contracts through the year. Cold squeeze-bottle filler from a hardware store shrinks, pulls away from the sides and lets water straight back in by the second winter.
Sealing does not repair anything structural. What it does is stop the damage you already have from turning into damage you cannot afford.
What the work covers
- Hot-pour rubberized sealant applied from a heated kettle
- Routing of wider or ragged cracks to give the sealant a clean reservoir
- Compressed air and wire-wheel cleaning so the sealant bonds to bare asphalt
- Drying of damp cracks with a heat lance where needed
- Squeegee or band finish, cut flush or slightly overbanded depending on the surface
- Sanding of the finished bands so they are not tracked into buildings
- Sealing of joints where asphalt meets concrete pans, gutters and curbs
- Crack sealing as prep ahead of a sealcoat or an overlay
When you need it
- Cracks you can fit a coin or a pencil into
- Long straight cracks running the length or width of a drive
- Cracks along the seam where two paving passes met
- Grass or weeds growing up through the surface
- A sealcoat or overlay planned for this season, which needs sealing done first
- Cracks that were hairlines last year and are open now
How the job is done
- 01
Assess the cracking
We check width, pattern and depth. Single cracks seal well. A tight alligator pattern means the base has failed, and sealing it is money spent on pavement that needs repair instead.
- 02
Rout where it helps
Wider or ragged cracks get routed to a consistent shape. That gives the sealant a proper reservoir to sit in, and it holds far better than sealant smeared across a rough edge.
- 03
Clean and dry
Compressed air and wire wheels take out dirt, vegetation and old failed filler. Sealant will not bond to a dusty or damp crack, so damp ones get heat-lanced first.
- 04
Pour hot
Rubberized sealant comes out of the kettle at working temperature and is poured into the crack, filling it from the bottom up rather than bridging over a void.
- 05
Finish and sand
Bands are squeegeed flat or cut flush, then sanded so they set quickly and do not track. Most surfaces take traffic again within about half an hour.
Crack Sealing in Denver
Crack sealing earns its keep in Denver more than in almost any climate. Water entering a crack, freezing overnight, expanding and levering the crack wider is the single mechanism behind most pavement failure here, and it repeats every time the temperature crosses freezing through fall, winter and spring. Sealing the crack removes the water and the whole chain stops.
It is also one of the few asphalt services with a long season here. Cracks are at their widest in cool weather, which is exactly when sealant can fill them completely, so late fall and early spring are good times to do it rather than compromises. The one thing that stops us is moisture. A crack has to be dry for the sealant to bond, so we work around wet days and snowmelt rather than pouring into a damp crack and calling it done.
What it costs
HomeGuide put crack filling at $0.50 to $3.00 per linear foot as of 2026, with the spread reflecting crack width, whether routing is needed, and how much cleaning the cracks take. National figures. Most jobs carry a minimum call-out charge, so sealing a whole driveway or lot at once costs far less per foot than having a crew out for a handful of cracks.
Why work with us
- Hot-pour rubberized sealant, not cold pourable filler out of a bottle
- Cracks routed and cleaned before anything is poured
- We will tell you when a cracked area needs repair rather than sealing
- Scheduled ahead of sealcoat and overlay work so it does the job it should
- Free written estimates by linear foot, licensed and insured
Related services
Areas we cover for crack sealing
Not listed? We cover Denver and the surrounding metro area. See every area we work in.
Crack Sealing questions
When is a crack too wide to seal?
Beyond roughly an inch, or where the edges are crumbling away, sealant alone will not hold. That becomes a patch or a full-depth repair. Below about a quarter inch there is nothing to fill, and a sealcoat handles it. In between is where crack sealing does its best work.
How long does crack sealing last?
Three to five years for a hot-pour rubberized band in a well-prepared crack, though heavily trafficked areas and pavement that is still moving will be shorter. Adjacent cracks keep opening as pavement ages, so most commercial lots here get sealed on a yearly cycle.
Can I just use a bottle of crack filler myself?
For a couple of small cracks in a driveway, sure. Cold pourable filler shrinks as it cures and pulls away from the crack faces, so expect to redo it. Hot-pour rubberized sealant bonds to both faces and stays flexible, which is why it is what contractors use.
Should I crack seal before sealcoating?
Yes, always in that order. Sealcoat is about the thickness of a business card and bridges nothing, so it disappears into any open crack. Sealing the cracks first is part of the prep, and skipping it is the most common shortcut behind a sealcoat that looks bad within a year.
Will the sealed lines be visible?
Yes. A sealed crack shows as a black band a few inches wide, and it stays visible under a later sealcoat. It is a trade-off worth making. The alternative is a tidier-looking driveway that is taking water into its base every time it rains.
Get a free crack sealing estimate
Tell us about the pavement and we will come back with a free written estimate.