Professional Pothole Repairs & Surface Patching
A permanent pothole repair means saw-cutting clean edges around the damage, clearing it out, applying a tack coat and filling with hot-mix asphalt compacted to the density of the surrounding surface. That’s the difference between a repair that lasts years and a DIY cold-lay patch that pops out by spring. We patch and repair tarmac driveways, private roads and shared accesses across Kent, and most repairs run from £200 to £600 depending on size and access.
Key points
- A proper repair is cut square, cleaned, tack-coated and filled with hot asphalt, then compacted.
- DIY cold-lay kits fail because they skip the prep that makes a repair permanent.
- Oil and fuel damage isn’t patched over: the contaminated section is cut out and replaced.
- Badly degraded tracks and lanes are repaired in sections rather than skimmed.
- Most domestic repairs cost £200–£600; isolated edge repairs from £150.
Fixing cratered tracks and badly degraded lanes
A driveway or private lane that’s gone past the odd pothole into a run of craters and broken edges needs more than spot fills. Once the wheel tracks have started to break up, water gets into the base through every hole, and each freeze-thaw cycle over winter widens the damage. Patch one pothole and the next one opens up a metre away.
For a degraded track we assess whether the base under the worst sections is still intact. Where it is, we cut out and properly repair the failed areas, then often follow with an overlay to tie the whole surface back together. Where the base has washed out under the craters, that section needs a full-depth repair: dig down to firm ground, rebuild and compact the sub-base, then lay new tarmac. Surfacing over a washed-out base just buys a few months.
This is common on older private and shared lanes around rural Kent, where years of farm or delivery traffic have outlasted a thin original surface.
Repairing damaged tarmac from oil or fuel leaks
Oil and fuel are the one thing you can’t simply patch over. Tarmac is bound together by bitumen, which is itself a petroleum product, and petrol, diesel and engine oil act as solvents on it. A persistent leak dissolves the binder, the stone loses its grip, and the surface turns soft and crumbly in a spreading patch under where the car sits.
A small, fresh splash does little harm and should be soaked up with sand and cleared. A long-standing leak is different. The contamination soaks down and outward, so skimming a new surface over the top fails fast, because the fresh tarmac sits on softened, oil-soaked material that won’t hold it. The durable fix is to cut out the full extent of the contaminated tarmac, well past the visible staining, remove it, and lay fresh hot asphalt onto a clean, sound base. It costs more than a cosmetic patch, but it’s the only repair that lasts.
Surface patching for shared access areas
Shared drives, private roads and small car parks bring an extra issue: access and traffic while the work happens. A repair on a shared access has to be planned so neighbours and deliveries can still get through, and the materials have to take heavier, more frequent loads than a single household drive.
For these we favour cutting back to sound material and filling with hot-mix asphalt, which carries traffic far better than any cold product and can usually take careful vehicle movement within hours of compaction. Where several owners share the cost, a coordinated repair of all the failed sections in one visit works out cheaper per owner than everyone patching their own stretch piecemeal.
Why DIY cold-lay kits fail
Cold-lay tarmac from a builders’ merchant has its place for an emergency stop-gap, but as a permanent repair it almost always fails, and the reasons are predictable.
- No squared edges. Tipped into a round hole with feathered edges, the patch has nothing solid to key against, so the thin edges break away under the first few cars.
- No tack coat. Without a bonding layer, the patch never fuses to the surrounding tarmac. It sits in the hole as a loose plug.
- Poor compaction. Trodden down by foot or left to passing tyres, cold-lay never reaches proper density, so it stays porous.
- Water gets in. A porous, unbonded patch lets water down into the hole. Come the first frost, the water freezes, expands, and levers the patch straight out.
- The base is ignored. A pothole is often a symptom of a failing base. Filling the surface without addressing what’s underneath leaves the cause in place.
Patch repairs done with cold-lay DIY products rather than hot asphalt are one of the most common causes of early tarmac failure we see across Kent. The patch looks fine for a fortnight and is gone by the next cold snap.
Permanent hot-asphalt repair methods
A repair that lasts follows a set sequence, and every step earns its place:
- Find the full extent. We mark out beyond the visible hole, because the weakened area is always larger than it looks.
- Saw-cut clean edges. A diamond blade cuts a square or rectangular “picture frame” into sound tarmac, giving the patch solid vertical faces to bond against.
- Clear and dry it out. All loose material, debris and standing water comes out. The hole must be dry, because moisture trapped under the patch destroys the bond.
- Check and rebuild the base. If the sub-base under the hole has failed, it’s rebuilt and compacted. Skip this and the repair fails again in the same spot.
- Apply a tack coat. Bitumen emulsion is applied to the cut faces and base. This is the glue that joins the new asphalt to the old and seals out water.
- Fill with hot-mix asphalt. Hot tarmac is laid in layers, slightly overfilled so compaction brings it level with the surrounding surface.
- Compact to match. A wacker plate or roller compacts the patch to the density of the drive around it, leaving a tight, sealed, level finish.
Done this way, the repair becomes part of the surface rather than a plug sitting in it, with no seam for water to attack.
Repair costs in Kent
Guide prices for 2026. Every quote is free and itemised after we’ve seen the job.
| Repair type | Typical cost | When it applies |
|---|---|---|
| Patch repair / pothole fill | £200–£600 | Isolated damage, sound base |
| Edge repair | £150–£400 | Edges failing, main surface sound |
| Full-depth / section repair | Price on survey | Base has failed under the damage |
Access, the number of repairs and whether the base needs rebuilding all move the figure, which is why we quote after a look rather than over the phone.
Frequently asked questions
How much does it cost to repair a pothole in a driveway? Most isolated pothole and patch repairs in Kent cost between £200 and £600, with edge repairs from £150. Cost depends on the size of the damage, access, and whether the base underneath needs rebuilding. We quote free after a site visit.
Does cold-lay tarmac work for potholes? Only as a short-term emergency fix. Cold-lay skips the squared edges, tack coat and compaction that make a repair permanent, so it typically lifts out within a season once water and frost get into it. A permanent repair uses hot asphalt.
Can you patch tarmac that’s been damaged by oil or fuel? Not by patching over it. Oil and fuel dissolve the bitumen binder, so the contaminated tarmac has to be cut out beyond the staining and replaced with fresh hot asphalt on a clean base. Skimming over oil-softened tarmac fails quickly.
Why does the same pothole keep coming back? Almost always because the base beneath it has failed and only the surface was repaired. A lasting fix means rebuilding the sub-base under the hole, not just filling the top.
Can you repair a shared private road or access? Yes. We plan shared-access repairs around ongoing traffic and use hot-mix asphalt that takes heavier loads. Repairing all the failed sections in one coordinated visit usually costs less per owner than piecemeal patching.
Get a pothole or patch repair quote in Kent
If your drive, lane or shared access has potholes, broken edges or oil damage, we’ll repair it properly the first time. We cover Ashford, Tenterden, Canterbury, Folkestone, Hythe and across Kent. See our tarmac resurfacing and overlay service if the whole surface is tired, or book a free site visit for a repair quote.