Small cracks and shallow surface damage can make an asphalt driveway look older than it is. Some minor problems are manageable with the right materials and careful preparation. However, not every damaged driveway is a good DIY project. Water, weak pavement, and Minnesota’s freeze-thaw cycles can turn a small defect into a larger repair if the underlying cause is ignored. This guide to do it yourself asphalt driveway repair explains what you may be able to fix and when to call a professional.
Start by identifying the damage
Inspect the driveway on a dry day. A few narrow cracks in otherwise firm pavement are different from connected cracks, a sunken area, or a pothole with crumbling edges. The shape and spread of the damage can help you decide whether a surface repair is reasonable.
Small, isolated cracks
Narrow cracks may be suitable for an asphalt crack filler made for the size of the opening. Remove weeds, loose debris, and dirt, then follow the product label for temperature, surface preparation, application depth, and curing time. One filler does not necessarily work for every crack.
Small potholes
A cold patch product may temporarily repair a small, well-defined pothole when the surrounding pavement is sound. Clean the hole, use a product intended for asphalt, and compact it exactly as directed. A patch placed over loose material or left uncompacted may fail quickly. Recurring potholes can point to a drainage or base problem that a surface patch cannot solve.
Widespread cracking or sinking
Interconnected, alligator-like cracks, standing water, soft spots, or areas that keep sinking may signal a failing pavement structure or base. Filling each crack individually is unlikely to address the cause. Ask a professional to assess the area before spending money on repeated temporary repairs.
If your driveway may need major reconstruction or replacement, review our Minnesota asphalt driveway cost guide to understand the factors that affect pricing.
Tools and supplies for a small repair
Depending on the job, you may need a stiff broom, a hand tool for removing loose debris, asphalt crack filler, a compatible patch product, an applicator or putty knife if specified, gloves, and eye protection. Use only products labeled for asphalt and for your specific repair. Do not use gasoline or paint thinner as improvised cleaners; solvents can damage asphalt and create serious safety hazards.
A simple DIY repair process
- Choose a dry day with temperatures that meet the product requirements.
- Move vehicles away and clear leaves, stones, weeds, and dirt from the damaged area.
- Remove loose material without unnecessarily widening the crack or hole.
- Apply the correct filler or patch product, following the label for depth, coverage, and compaction.
- Keep people and vehicles off the repair for the stated curing period.
- Check the area later. If it opens, sinks, or crumbles again, investigate the cause instead of covering it repeatedly.
Does sealcoating repair cracks?
No. Crack filler treats specific openings, while sealcoating is a protective surface treatment for suitable asphalt. Sealcoat does not replace crack filling, pothole patching, drainage corrections, or rebuilding a failed base. Repair defects first and check that the repair materials are compatible with the planned coating.
After addressing suitable pavement repairs, our professional asphalt sealcoating services may help protect the remaining sound surface.
Why Minnesota weather matters
Water can enter cracks, freeze, expand, and contribute to further damage during Minnesota winters. Snowplows, road salt, sunlight, and traffic also wear pavement. Suitable repairs may reduce water entry, but weather and product conditions still matter. Do not rush an application in unsuitable temperatures or before rain.
Once your driveway is in suitable condition, learn how often you should seal your driveway to plan preventive maintenance.
When professional repair is the smarter choice
Consider professional help when cracks are widespread, potholes return, the driveway has settled, water pools on the surface, or damage covers a large area. A contractor can assess whether crack sealing, patching, drainage work, resurfacing, or replacement is appropriate. Johnson Sealcoating serves Minnesota homeowners with asphalt sealcoating and crack sealing.
For cracks that require professional treatment, Johnson Sealcoating provides asphalt crack sealing services for suitable pavement conditions.
FAQs
Can I repair asphalt driveway cracks myself?
Small, isolated cracks may be manageable with a suitable asphalt filler. Wide, moving, or widespread cracks should be assessed.
Can I patch a pothole without replacing the driveway?
A small pothole in sound pavement may be patched. Repeated potholes can indicate a deeper problem.
Does sealcoat fix driveway cracks? No. Sealcoat is a surface coating, not a substitute for crack filler or structural repair.